KR20120087295A - Method and Apparatus for Determining and Improving Energy Efficiency of Apartment - Google Patents

Method and Apparatus for Determining and Improving Energy Efficiency of Apartment Download PDF

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Publication number
KR20120087295A
KR20120087295A KR1020100138723A KR20100138723A KR20120087295A KR 20120087295 A KR20120087295 A KR 20120087295A KR 1020100138723 A KR1020100138723 A KR 1020100138723A KR 20100138723 A KR20100138723 A KR 20100138723A KR 20120087295 A KR20120087295 A KR 20120087295A
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South Korea
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energy
building
target
energy efficiency
components
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KR1020100138723A
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Korean (ko)
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우세진
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우세진
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063—Operations research, analysis or management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/08—Construction

Abstract

PURPOSE: A building energy efficiency diagnosing/improving method and a device thereof are provided to efficiently improve the energy performance of a building based on an analysis result by easily analyzing the energy performance of the building in a design phase. CONSTITUTION: A device computes the energy of a construction target building by using basic data required for an energy computation(S330). If there is difference between the computed energy and target energy of the construction target building, the device extracts components influencing the energy computation of the building(S340-S350). The device changes one or more elements among the extracted elements(S360). The device re-computes the energy of the construction target building(S365).

Description

Method and device for diagnosis and improvement of energy efficiency of buildings {Method and Apparatus for Determining and Improving Energy Efficiency of Apartment}

The present invention relates to a method and apparatus for diagnosing and improving energy efficiency of a building, and more particularly, automatically searching for a method for diagnosing and improving energy efficiency by automatically extracting data affecting energy efficiency of a building. An energy efficiency diagnosis and improvement method and apparatus are provided.

As the demand for environmentally friendly energy-saving buildings increases, the necessity of applying energy-saving designs to various buildings is on the rise. However, since the cost and utility of energy saving designs in various skin structures and materials such as walls, floors, roofs, windows, doors, etc. to which energy saving design can be applied are different, the contractor can design energy saving designs for a specific building. In applying this, there is a problem in that there is no efficient and rational determination method for which energy saving design should be applied to the building structure, material, etc. of the building.

The present invention is to provide a method and apparatus for energy efficiency diagnosis and improvement that can automatically extract data affecting the energy efficiency of the building to diagnose the energy efficiency of the building, and automatically suggest ways to improve the energy efficiency. do.

According to an embodiment of the present invention, calculating energy of a building object using basic data necessary for energy calculation; Deriving components that affect energy calculation of the building target building when there is a difference by comparing the calculated energy with the target energy that the building target building should have; And recalculating the energy of the building object by changing at least one component of the derived components, wherein the recalculating includes when the recalculated energy satisfies the target energy. Provides a method for diagnosing and improving energy efficiency, characterized in that it is performed repeatedly.

And prioritizing the derived components, wherein the retrieving may change the at least one component on the basis of the predetermined priority to reexamine the energy of the building target building. have.

The priority is one of preference and importance for each of the derived components. Is determined using at least one.

The priority is further determined in consideration of the material, size and placement position of each of the derived components.

Refining the energy of the building object, the energy of the building object may be reclaimed by changing at least one of a material, a size, and an arrangement position of at least one of the derived elements.

Each time the reloading step is repeatedly performed, generating a list of energy of the at least one component and the rebuilt building target building applied in the reloading step.

In the deriving of the components, the physical elements of the building object among the design data of the building object included in the basic data may be derived as the elements.

The derived components are elements constituting the envelope structure constituting the building object.

The basic data includes at least one of design data of the building target object, user data which varies according to the current state and purpose of the building target building, basic data related to an air conditioning system of the building target material, and material property data of the components. can do.

Calculating an energy efficiency rating of the building target building by using physical elements of the building among the basic data of the building target building, and if the calculated energy efficiency rating does not satisfy a target energy efficiency rating, the The energy of the building can be calculated.

On the other hand, according to an embodiment of the present invention, the energy calculation unit for calculating the energy of the building target building using the basic data required for energy calculation; And a component deriving unit for deriving components that affect energy calculation of the building target building when there is a difference by comparing the calculated energy with the target energy that the building target building should have. Energy efficiency diagnosis and improvement, characterized in that to re-energy the energy of the building target by changing at least one of the derived components until the calculated energy meets the target energy. An apparatus is provided.

And a priority determining unit configured to determine priorities of the derived components, wherein the energy calculating unit comprises the at least one component based on the determined priority whenever the energy of the building object is recalculated. Can be changed.

The energy calculator may recalculate energy of the building object by changing at least one of a material, a size, and an arrangement position of at least one of the derived components.

Whenever the energy calculator recalculates the energy of the building target object, a UI (User Interface) generation is generated to generate a list of the energy of the at least one component applied to the regeneration of the energy and the rebuilt building target object. It may further include a.

The component deriving unit may derive the physical elements of the building object from among design data of the building object included in the basic data as the elements.

By using the physical elements of the building of the basic data of the building object And an energy rating calculation unit configured to calculate an energy efficiency rating of the building target building, wherein the energy calculation unit includes the building target building if the energy efficiency rating calculated by the energy rating calculation unit does not satisfy a target energy efficiency rating. The energy of can be calculated.

Meanwhile, according to an embodiment of the present invention, a computer-readable recording medium having recorded thereon a program for executing at least one of the above methods may be provided.

According to an embodiment of the present invention, it is possible to easily analyze the energy performance of the building in the design stage, and to propose a way to efficiently improve the energy performance of the building based on the analysis results.

In addition, according to an embodiment of the present invention, by automatically extracting the data necessary to analyze the energy performance of the building from the pre-stored data as possible, minimizing the manual input of the architect, it is easy to be an expert without analyzing the energy performance Analyze the energy performance of buildings.

1 is a view showing an energy efficiency diagnosis and improvement apparatus according to an embodiment of the present invention,
2 is a block diagram illustrating an energy management module according to an embodiment of the present invention;
3 is a flowchart illustrating an energy efficiency diagnosis and improvement method according to an embodiment of the present invention, and
4 is a flowchart illustrating a method of diagnosing and improving energy efficiency according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the following specific embodiments, various specific details are set forth in order to explain and understand the invention in more detail. However, those skilled in the art can understand that the present invention can be used without these various specific details. In some cases, it is mentioned in advance that parts of the invention which are commonly known in the description of the invention and which are not highly related to the invention are not described in order to prevent confusion in explaining the invention without cause.

1 is a view showing an energy efficiency diagnosis and improvement apparatus according to an embodiment of the present invention.

The energy efficiency diagnosis and improvement apparatus 100 according to the embodiment of the present invention analyzes the energy performance of the building target object using basic data including design data of the building target building, and analyzes the energy of the building target building. If there is a need to add or subtract, energy can be added or subtracted automatically by changing the shell structure of the building. Thus, the energy efficiency diagnosis and improvement apparatus 100 of the present invention can quickly and easily derive the changes of the shell structure most suitable for the target energy rating calculation.

The building target building is a building for new construction, hereinafter, the building target building is referred to as 'building' for convenience of explanation.

First, the basic data of the building will be described. The basic data of the building may include at least one of design data of the building, user data that varies depending on the current state and purpose of the building, basic data related to the simulation of the building and the facility system, and material property data of the components. The component is an element influencing the energy generation of the building object and may be an envelope structure. Examples of building components may include at least one of an outer wall, an inner wall, a floor, a roof, a door, and a window of the building.

Design data, basic data and material property data are stored in the storage unit 130 to be described later.

The design data is data of a building modeled by LEB-CAD, and a module according to an embodiment of the present invention actively uses design data to increase the utilization of LEB-CAD. The design data may be used as modeling variables related to the shape and size of the building among the variables of the EnergyPlus program used in the energy calculation unit 143 which will be described later. For example, design data related to the modeling of buildings is shown in Table 1 below.

Design data Specific type of design data




BuildingSurface: detail related data 1. Surface Type: "Wall", "Floor", "Roof", "Ceilings"
2. Construction Name
3. Zone Name
4.Outside Boundary Condition: ①Outdoors / ②Surface / ③Zone / ④Ground
5.Outside Boundary Condition Object
①: Blank / ②: Surface Name
③: Zone Name / ④: Blank
6. Sun Exposure
7.Wind Exposure
8.View Factor to ground
9.Number of Vertices
10. Coordinates of nodes (X, Y, Z)



FenestrationSurface: detail related data 1.Surface Type:
①Window / ②Door / ③GlassDoor
④TubularDaylightDome / ⑤TubularDaylightDiffuser
2. Construction Name
3.Building Surface Name
4.Outside Boundary Condition Object
5.View factor to ground
6.Shading Control Name
7.Frame and Divider Name
8. Multiplier
9.Number of Vertices
10. Coordinates of nodes (X, Y, Z)
Construction 1. OutsideLayer
2. Layer2
3. Layer3

Construction: Data related to internal sources 1. Name
2. Source Present After Layer Number
3. Temperature Calculation Requested After Layer Number
4.Dimension for CTF Calculation
5. Tube Spacing
6. Outside Layer
7. Layer2

On the other hand, the material properties data refers to the material properties of the material applied to each component of the building. Components are skin structures that make up a building such as floors, walls, and roofs. For example, the material property data are shown in [Table 2].

Material property data Specific type of material property data



Data related to the material 1. Name
2. Roughness
①VeryRough / ②Rough / ③MediumRough / ④MediumSmooth / ⑤Smooth / ⑥VerySmooth
3. Thickness (m)
4. Conductivity (W / mk)
5.Density (kg / m 3 )
6.Specific Heat (J / kgk)
7.Thermal absorptance
8.Solar Absorptance
9.Visible Absorptance


Material: NoMass related data 1. Name
2. Roughness
①VeryRough / ②Rough / ③MediumRough / ④MediumSmooth / ⑤Smooth / ⑥VerySmooth
3.Thermal Resistance (m 2 k / W)
4.Thermal absorptance
5.Solar Absorptance
6.Visible Absorptance Material: data related to AirGap 1. Name
2.Thermal Resistance (m 2 k / W)






Data related to WindowMaterial: Glazing 1. Name
2. Optical Data Type
3.Window Glass Spectral Data Set Name
4. Thickness: (m)
5.Solar Transmittance at Normal Incidence
6.Front Side Solar Reflectance at Normal Incidence
7.Back Side Solar Reflectance at Normal Incidence
8.Visible Transmittance at Normal Incidence
9.Front Side Visible Reflectance at Normal Incidence
10.Back Side Visible Reflectance at Normal Incidence
11.Infrared Transmittance at Normal Incidence
12.Front side Infrared Hemispherical Emissivity
13.Back side Infrared Hemispherical Emissivity
14. Conductivity (W / mk)
15.Dirt Correction Factor for Solar and visible Transmittance
16.Solar Diffusing
Data related to WindowMaterial: Gas 1. Name
2. Gas Type
①Air / ②Argon / ③Krypton / ④Xanon
3. Thickness (m)

User data is data input directly by the designer through the UI. The data is changed according to the current status and purpose of the building in the process of calculating and analyzing the energy of the building. User data is developed to reduce the type of user data as much as possible for the convenience of designers, and can be developed in the direction of reducing the type of variables as much as possible. The types of user data are shown in the following [Table 3].

Type of user data Explanation Select floor level of building . Displays the number of floors of the modeled building in the UI and enables designers to select the floors they want for energy analysis
. Enable modeling of the whole building Select type of building . Choose between apartments / offices / schools Select range to analyze . Allows you to choose between cooling, heating, and heating Select system free space . Allows you to choose whether or not to apply a heating or cooling system for each modeled zone (or space) Choose location . Choosing a new location for modeled buildings (ex) Seoul, Busan, Ulsan Select surrounding status . Allows you to select the surroundings of the modeled building
. Choose from Country / Suburbs / City / Ocean / Urban.

For example, the designer selects the entire floor as the number of floors of the building through the UI, selects both the school as the type of the building, the air conditioning and heating as the area to be analyzed, the warehouse of the school as the unapplied space, the city as Seoul, and the city as the surroundings. The selected data can be used as user data.

The basic data related to the simulation of the building is data necessary for optimizing the simulation, and may include a period and a range of simulation for the energy analysis of the building and a setting value of an initial environment for the simulation. Basic data related to simulation can be difficult to enter directly by architects who are not experts in the field of simulation. Therefore, the basic data related to the simulation is stored in the storage unit 130 as an optimized value, and thus can be fixedly used. However, the architect can modify or adjust the basic data related to the simulation if necessary. Basic data related to the simulation are shown in the following [Table 4].

Basic data related to simulation Explanation Version Building -Loads Convergence Tolerance Value / Temperature Convergence Tolerance Value
Maximum Number of Warmup Days Timestep Simulatoncontrol RunPeriod SurfaceConvectionAlgorithm: Inside SurfaceConvectionAlgorithm: Outside HeatBalanceAlgorithm

Basic data related to the building system is the data related to the heating and cooling system applied to the building. Basic data related to facility systems can also be difficult for architects to understand and make decisions on their own. Therefore, the basic data related to the facility system is stored in the storage unit 130 as an optimized value, the architect can change the set value of the air conditioning system if necessary. [Table 5] shows an example of the air conditioning system applied according to the type of building.

Type of building Application system Heating system Cooling system Apartment Low Temp Radiant Systems: Variable Flow Packaged Terminal Air Conditioner office Single Duct: VAV (NoReheat) Single Duct: VAV (NoReheat) school Packaged Terminal Heat Pump Packaged Terminal Heat Pump

On the other hand, the type of basic data related to the facility system may be classified into mechanical data of the air conditioning systems applied to the building and data for simulating the air conditioning system. Data for simulating the applied air conditioning system can be classified into schedule related data, internal acquisition heat (People, Lights, Electric, Infiltration) data, weather related data, and the like. Mechanical data for mechanical installation of the applied air conditioning system are shown in Table 6, for example. Mechanical data in [Table 6] is classified by type of air conditioning system set in [Table 5].

Type of air conditioning system Mechanical data





Low Temp Radiant Systems: Variable Flow 1. Availability Schedule Name
2. Zone Name
3.Surface Name or Radiant Surface Group Name
4. Hydronic Tubing Inside Diameter {m}
5. Hydronic Tubing Length {m}
6.Temperature Control Type
7.Maximum Hot Water Flow {m3 / s}
8.Heating Water Inlet Node Name
9.Heating Water Outlet Node Name
10. Heating Control Throttling Range {deltaC}
11.Heating Control Temperature Schedule Name
12.Maximum Cold Water Flow {m3 / s}
13.Cooling Water Inlet Node Name
14.Cooling Water Outlet Node Name
15.Cooling Control Throttling Range {deltaC}
16.Cooling Control Temperature Schedule Name
17.Condensation Control Type
18.Condensation Control Dewpoint Offset {C}







Packaged Terminal Air Conditioner 1. Availability Schedule Name
2.Air Inlet Node Name
3.Air Outlet Node Name
4.Outdoor Air Mixer Name
5.Supply Air Flow Rate During Cooling Operation {m3 / s}
6.Supply Air Flow Rate During Heating Operation {m3 / s}
7.Supply Air Flow Rate When No Cooling or Heating is Needed {m3 / s}
8.Outdoor Air Flow Rate During Cooling Operation {m3 / s}
9.Outdoor Air Flow Rate During Heating Operation {m3 / s}
10.Outdoor Air Flow Rate When No Cooling or Heating is Needed {m3 / s}
11.Supply Air Fan Object Type
12.Supply Air Fan Name
13.Heating Coil Object Type
14. Heating Coil Name
15.Cooling Coil Object Type
16.Cooling Coil Name
17.Fan Placement
18.Supply Air Fan Operating Mode Schedule Name




Single Duct: VAV
(NoReheat) 1. Availability Schedule Name
2. Damper Air Outlet Node Name
3.Air Inlet Node Name
4.Maximum Air Flow Rate {m3 / s}
5.Zone Minimum Air Flow Input Method
6.Constant Minimum Air Flow Fraction
7.Minimum Air Flow Fraction Schedule Name
8.Hot Water or Steam Inlet Node Name
9.Reheat Coil Object Type
10.Reheat Coil Name
11.Maximum Hot Water or Steam Flow Rate {m3 / s}
12.Minimum Hot Water or Steam Flow Rate {m3 / s}
13.Air Outlet Node Name
14.Convergence Tolerance











Packaged Terminal Heat Pump 1. Availability Schedule Name
2.Air Inlet Node Name
3.Air Outlet Node Name
4.Outdoor Air Mixer Name
5.Supply Air Flow Rate During Cooling Operation {m3 / s}
6.Supply Air Flow Rate During Heating Operation {m3 / s}
7.Supply Air Flow Rate When No Cooling or Heating is Needed {m3 / s}
8.Outdoor Air Flow Rate During Cooling Operation {m3 / s}
9.Outdoor Air Flow Rate During Heating Operation {m3 / s}
10.Outdoor Air Flow Rate When No Cooling or Heating is Needed {m3 / s}
11.Supply Air Fan Object Type
12.Supply Air Fan Name
13.Heating Coil Object Type
14. Heating Coil Name
15. Heating Convergence Tolerance {dimensionless}
16.Minimum Outdoor Dry-Bulb Temperature for Compressor Operation {C}
17.Cooling Coil Object Type
18.Cooling Coil Name
19. Cooling Convergence Tolerance {dimensionless}
20. Supplemental Heating Coil Object Type
21. Supplemental Heating Coil Name
22.Maximum Supply Air Temperature from Supplemental Heater {C}
23.Maximum Outdoor Dry-Bulb Temperature for Supplemental Heater Operation {C}
24.Fan Placement
25.Supply Air Fan Operating Mode Schedule Name

Meanwhile, referring to FIG. 1, the energy efficiency diagnosis and improvement apparatus 100 may include a user input unit 110, a display unit 120, a storage unit 130, an energy management module 140, and a controller 150. have.

The user input unit 110 provides an interface between the user and the device 100 and receives a user's request and outputs it to the controller 150. For example, a user may input a target energy efficiency grade, user data, and preferences for setting priorities of components by operating the user input unit 110. According to an embodiment of the present invention, the user input unit 110 may support a drag & drop function when designing a building. In addition, when the present embodiment further includes a design module (not shown), the user input unit 110 may provide an interface between the design module and the user. The user can use that interface to generate design data by using a design module.

The display unit 120 displays various screens related to the operation of the device 100, such as a simulation state and results of the energy management module 140, and a questionnaire screen for setting priorities of the components. The questionnaire screen for setting priorities is a screen for receiving a preference of a building owner or a designer for each component.

The storage unit 130 includes a program for the operation of the energy management module 140, a program for the operation of the device 100, design data of the building for energy efficiency diagnosis, material property data of all materials that can be used in the building, and the like. This can be stored. The material property data may be information on material properties such as thermal conductivity and heat capacity of the material of the components.

The energy management module 140 is a module developed to diagnose and improve energy efficiency of a building, and may be operated by interworking with the controller 150. The energy management module 140 may perform a simulation to analyze the energy performance of the building while automatically changing the component of the building, and determine or recommend an optimal component. The energy management module 140 will be described in detail with reference to FIG. 2.

The controller 150 controls the overall operation of the device 100, and in particular, the energy management module 140 predicts the optimal energy efficiency class of the building, and the optimal components and the optimal components derived according to the prediction result. The values of the components may be stored in the storage 130. In addition, the controller 150 may display the simulation progress and results of the energy management module 140 on the display unit 120.

According to an embodiment of the present invention, when a drag and drop function is performed at the time of designing a building through the user input unit 110, the controller 150 may perform an operation corresponding thereto. To this end, the present embodiment may further include a design module (not shown) for generating design data, and the design module (not shown) may be used to perform an application for designing a building (for example, a CAD-like operation). Placement). The data generated by the design module may be the design data described above.

According to a preferred embodiment of the present invention, design data generated by a design module (not shown) or design data provided and stored from outside may be converted into at least two or more forms. To this end, the embodiment may further include a data conversion module (not shown). That is, the design data generated by the design module (not shown) may be in the form of a data file generated by a building design program such as CAD or a data file generated by a building information model (BIM) design tool program. The data conversion module (not shown) may convert such types of files into, for example, BIM-related international standard data files (IFCs) or in the form of commercially popular files such as gbXML. The shape-converted design data may be stored in the storage unit 130 and used by an energy management module or a design module (not shown).

2 is a block diagram illustrating an energy management module according to an embodiment of the present invention.

The energy management module 140 of FIG. 2 may perform a simulation for predicting energy of a building while automatically changing a component of the building, and determine or recommend an optimal component. To this end, the energy management module 140 includes a user interface (UI) generator 141, an energy rating calculator 142, an energy calculator 143, a component derivator 144, and a priority determiner 145. ) May be included.

The UI generator 141 may generate each UI for receiving a target energy efficiency grade, a user data to be described later, a questionnaire required for priority setting, and the like, from the user. The controller 150 may display each UI generated by the UI generator 141 on the display 120. The UI generator 141 may not be included in the energy management module 140 but may be included in the device 100.

The energy rating calculator 142 may predict or calculate the energy efficiency rating of the building using information related to the energy efficiency of the building. The energy rating calculation unit 142 may calculate the energy efficiency rating of the building by using the calculation method proposed in the building energy efficiency rating calculation standard (building energy efficiency rating certification system operation regulation) set by the government.

The information related to the energy efficiency of the building may be physical information of the building including the area, size, height, floor thickness, construction material, material of the building, and the like. The physical information of the building is included in the design data of the building. The energy rating calculator 142 may automatically extract physical information from the design data stored in the storage 130.

Optionally, the energy rating calculation unit 142 further uses the thermal efficiency information, such as thermal conductivity, specific heat, heat absorption rate, solar absorption rate, visible light absorption rate, etc. The energy efficiency rating of can be calculated. Since the physical property data of the components constituting the building are stored in the storage 130, the energy rating calculator 142 may automatically read the data from the storage 130.

The energy efficiency rating of a building is given based on the amount of savings based on the standard housing set by the government.If the energy saving rate is more than 33.5% compared to the standard housing, the first grade and the energy saving rate is more than 23.5% and less than 33.5% compared to the standard housing. Class 2 is classified as Class 2 when the energy saving rate is more than 13.5% and less than 23.5% compared to standard housing. In addition, as an example, when the analysis target building is a multi-family house, the energy rating calculator 142 may calculate the energy efficiency grade of the multi-family house for each household and the whole building.

If the energy efficiency rating calculated by the energy rating calculator 142 does not satisfy the target energy efficiency rating inputted by the building designer through the UI generated by the UI generator 141, the UI generator 141 receives the energy of the building. A UI for receiving input of user data that a user must input from among basic data necessary for calculation and analysis may be generated. The energy of a building means the energy to be consumed in the building.

The energy calculator 143 may analyze the energy performance of the building. That is, the energy calculating unit 143 may calculate the energy of the building generated when building the building with the current design data of the building. In particular, the energy calculator 143 may calculate the energy of the building when the energy efficiency rating calculated by the energy rating calculator 142 does not satisfy the target energy efficiency rating required by the building designer. The energy calculator 143 may use an energy plus program, which is a commercial program, to calculate energy of a building and analyze energy performance.

When the input of the user data is completed, the energy calculation unit 143 sets the basic data necessary for calculating the energy of the building in the energy plus program required for energy calculation, and calculates the energy of the building using the set basic data and the energy plus program. can do. As described above, design data, basic data, and material property data among the basic data of the building are stored in the storage unit 130, and the user data is input by the user.

The energy calculator 143 may calculate a difference between the calculated energy and the target energy if there is a difference by comparing the calculated energy with the target energy that the building should have. The target energy may be an amount of energy consumed corresponding to the target energy efficiency class.

If the calculated energy is greater than the target energy, the energy efficiency rating calculated by the energy rating calculation unit 142 is lower than the target energy efficiency rating, which means that energy should be saved. For example, the calculated energy efficiency rating may be a second grade, and the target energy efficiency rating is a first grade. Therefore, the difference calculated at this time may be an energy saving amount.

On the other hand, if the calculated energy is smaller than the target energy, it means that the energy efficiency rating calculated by the energy rating calculation unit 142 is higher than the target energy efficiency rating, so that the energy should be increased. For example, the calculated energy efficiency rating may be a first grade, and the target energy efficiency rating is a second grade. Therefore, the difference calculated at this time may be an increase in energy.

According to the amount of energy savings or the amount of energy increase, the component deriving unit 144 may derive the components that affect the energy output of the building from the reference data, respectively. That is, when the energy saving amount is calculated by the energy calculating unit 143, the component deriving unit 144 derives the components suitable for energy saving. In addition, when the amount of energy increase is calculated by the energy calculator 143, the component derivation unit 144 derives components suitable for energy increase. The component deriving unit 144 may derive the physical elements of the building from the design data of the building included in the basic data as the elements.

The energy calculator 143 may recalculate the energy of the building by changing at least one of the derived components. The energy calculator 143 may repeatedly recalculate the energy of the building by changing at least one of the components until the recalculated energy satisfies the target energy. Each time energy is recalculated, the components that change are different and can overlap. The energy calculator 143 may recalculate the energy of the building by changing at least one of a material, a size, and an arrangement position of at least one of the derived components.

Meanwhile, the energy management module 140 according to the embodiment of the present invention may further include a priority determiner 145. The priority determiner 145 may determine the priorities of the components by using at least one of the preference and the importance of each of the derived components. The process of determining the priority of each component in the priority determiner 145 is a process of inferring which one should be changed for saving or increasing energy. The preference is a ranking preferred by the architect or the building owner among the derived components, and the ranking may be input in the form of a questionnaire. Importance is a ranking derived from the experiences of various architects and is professional data.

The priority determiner 145 may determine the priority by further considering materials, sizes, and placement positions of the derived elements. For example, if the components include doors, windows, floors, roofs, the priority determiner 145 determines the priority of the doors, windows, floors and roofs, or the size of the front door, the material of the front door. After subdividing components such as size of the door, location of the door, presence or absence of kitchen door, size of living room window, double window of living room window, etc., priority can be determined. The priority determiner 145 may also suggest an actual value of each component. Table 7 shows an example of the priority determined for the components determined by the priority determiner 145 and the actual value of each component.

Priority Component One Outer wall thickness: 50mm 2 Double window in living room window: double glazing 3 Insulation Type of Living Room Wall: Styrofoam 4 Front door size: 100mm × 250mm 5 Size of living room window: 200mm × 100mm

The energy calculator 143 may recalculate the energy of the building after changing at least one component based on the priority determined by the priority determiner 145.

When the priorities are determined for the components as shown in [Table 7], the energy calculator 143 may recalculate the energy repeatedly by applying the number of all cases in which the components may be combined. For example, the energy calculation unit 143 may include '1, 2, 3, 4, 5, 1 + 2, 1 + 3, 1 + 4, 1 + 5, 1 + 2 + 3, 1 + 2 + 4... , Energy can be recalculated by changing at least one component in the order of 1 + 2 + 3 + 4 + 5 '. Here, the number means priority, and means' 1, 2, 3, 4, 5, 1 + 2, 1 + 3, 1 + 4, 1 + 5, 1 + 2 + 3, 1 + 2 + 4... , 1 + 2 + 3 + 4 + 5 'means a combination of components corresponding to the number in all cases.

The energy calculator 143 calculates the difference between the recalculated energy and the target energy, respectively. The UI generator 141 may generate a list showing the recalculated energy and the changed at least one component according to the changed at least one component.

The generated list shows the energy recalculated according to the combination of components corresponding to the number of all cases, so the building designer can select one of the combinations of components. That is, the generated list is' 1, 2, 3, 4, 5, 1 + 2, 1 + 3, 1 + 4, 1 + 5, 1 + 2 + 3, 1 + 2 + 4... , The energy recalculated in the order of 1 + 2 + 3 + 4 + 5 'and at least one component corresponding to the order.

After the list is displayed on the display unit 120, the building designer selects one of the lists (eg, a component corresponding to the combination of priorities 1 and 2), and the energy rating calculator 142 selects the selected priority 1. The energy efficiency rating of the building is calculated using the modified components corresponding to and 2, and the calculated energy efficiency rating can satisfy the target energy efficiency rating.

Alternatively, when the priorities of the components are determined as shown in [Table 7], the energy calculation unit 143 changes the at least one component according to the priority to recalculate the energy, and the recalculated energy and the target energy. If the difference is less than the threshold, the process of recalculating energy can be stopped. In addition, the energy calculator 143 may output at least one component to the energy grade calculator 142 such that the difference is smaller than the threshold value. The energy rating calculator 142 calculates an energy efficiency rating of the building using the changed at least one component, and the calculated energy efficiency rating may satisfy the target energy efficiency rating.

3 is a flowchart illustrating a method for diagnosing and improving energy efficiency according to an embodiment of the present invention.

The processor or apparatus for performing the energy efficiency diagnosis and improvement method of FIG. 3 may be the energy efficiency diagnosis and improvement device 100 described with reference to FIG. 1.

In operation S305, the device may automatically extract physical information from previously stored design data of the building. The physical information is information related to the energy efficiency of the building, and may include an area, a size, a height, a floor thickness, a construction material, a material material, and the like of the building.

In operation S310, the device may calculate the energy efficiency rating of the building using the extracted physical information and physical property data of the components of the building. Since the physical property data of the components is pre-stored in the device, the device can automatically extract the physical property data.

In step S315, if the energy efficiency rating calculated in step S310 is not the same as the target energy efficiency rating input from the architect (S315-Y), in step S320, the device generates a UI for receiving user data and In addition, user data is input from the architect through the UI. User data is the data that the architectural designer should directly input among the basic data necessary for calculating and analyzing the energy of the building.

In operation S325, the device may automatically set basic data necessary for analyzing the energy of the building in an energy analysis program such as an energy plus program. The energy of a building means energy to be consumed in the building when the building is built according to the current design data. The basic data of the building includes design data, user data, basic data, and material property data, and is omitted because it has been described with reference to [Table 1] to [Table 6].

In operation S330, the device may calculate the energy of the building using the set basic data and the energy analysis program.

In operation S335, the device may calculate a difference between the energy of the building calculated in operation S330 and the target energy corresponding to the target energy efficiency rating. If the energy calculated in step S330 is greater than the target energy, the energy of the building should be saved, so in step S335 the device calculates the energy savings. In addition, if the energy calculated in step S330 is less than the target energy, the energy of the building should be increased, so in step S335 the device calculates the amount of energy increase. In operation S335, the energy saving amount is calculated as an example.

In operation S340, the device compares the calculated energy saving amount with a preset threshold TH. If the energy savings are greater than the threshold TH, this means that there is a lot of energy to save.

If the energy saving amount is greater than the threshold value TH (S340-Y), in step S345, the device determines whether the priority of the components is preset. The components are skin structures that affect the energy output of the building, and may include at least one of an outer wall, an inner wall, a floor, a roof, a door, and a window of the building.

If the priority of the components is not preset (S345-N), in step S350, the device may derive the components from the basic data.

In operation S355, the apparatus may determine the priority of the derived components. For example, the device may prioritize the components by using at least one of the preference and the importance for each of the derived components. In addition, the device may prioritize further considering the material, size, and placement location of each of the components.

In operation S360, the device may change at least one component based on the determined priority. For example, if the determined priority is as shown in Table 7, the device first changes the thickness of the entire outer wall of the building to 50 m.

In operation S365, the device may recalculate energy by applying the configuration data changed in operation S360 to the energy plus program.

In operation S3350, the device may calculate an energy saving amount that is a difference between the energy recalculated in step S365 and the target energy, and may repeat steps S340 to S365. The device may recalculate the energy of the building while changing at least one component until energy savings below the threshold are calculated.

If the energy saving amount is less than or equal to the threshold value TH (S340-N) by the energy of the recalculated building, in step S370, the device may recalculate the energy efficiency rating of the building. The recalculated energy efficiency rating satisfies the target energy efficiency rating. This is because the device recalculates the energy efficiency rating using the modified components such that the energy savings are below the threshold. The changed component is the result of changing the physical information extracted in step S305.

In operation S375, the device may externally output a screen showing an analysis result, that is, a screen showing the energy efficiency rating of the building recalculated in operation S370 and the components used to calculate the energy efficiency rating. The outside may be a display panel or a storage medium.

On the other hand, in step S315, if the calculated energy efficiency rating and the target energy efficiency rating are the same, the device enters step S375. That is, the device may output the screen showing the calculated energy efficiency rating to the outside together with a guide message that the current design data is suitable.

4 is a flowchart illustrating a method of diagnosing and improving energy efficiency according to another embodiment of the present invention.

The processor or apparatus for performing the energy efficiency diagnosis and improvement method of FIG. 4 may be the energy efficiency diagnosis and improvement device 100 described with reference to FIG. 1.

In FIG. 4, step S305 refers to step S330 of FIG. 3. Therefore, operation S400 of FIG. 4 is an operation after operation S330 of FIG. 3.

In operation S400, the device compares the energy saving amount calculated in operation S330 with a preset threshold TH.

If the energy saving amount is greater than the threshold value TH (S400-Y), in step S410, the device may derive the components from the basic data.

In operation S420, the apparatus may determine the priority of the derived components. This is the same as step S350, and description thereof will be omitted.

In operation S430, the device may change at least one component based on the determined priority.

In operation S440, the device may recalculate energy by applying the configuration data changed in operation S430 to an energy plus program, and recalculate an energy saving amount that is a difference between the recalculated energy and the target energy.

In operation S450, if the component is not changed by the number of all cases in which the components may be combined according to priority, the device may enter into operation S430. At this time, the device may change at least one other component which has not been changed previously, and repeats the steps S430 to S440 until the component is changed by all combinations.

If the components are changed by all combinations and the energy of the building is recalculated as many times as possible (S450-Y), in step S460, the device is recalculated according to each combination (ie, according to at least one modified component). It is possible to generate and display a list showing the energy of each building and each combination. The list may also include an amount of energy savings that is the difference between the recalculated energy and the target energy according to the at least one modified component.

In step S470, when the building designer selects one item displayed in the list, that is, the recalculated energy, in step S480, the device uses the at least one component mapped to the selected energy to determine the energy efficiency rating. Can be recalculated.

In operation S490, the device may externally output a screen showing at least components used to calculate an energy efficiency rating and an energy efficiency rating of the building recalculated in operation S480.

On the other hand, in step S400, if the calculated energy efficiency rating and the target energy efficiency rating are the same, the device enters step S490. That is, the device may output the screen showing the calculated energy efficiency rating to the outside together with a guide message that the current design data is suitable.

In the above-described embodiment, it has been described that the storage unit 130 stores all of the design data, the basic data, and the material property data, but this is merely an example, and the data may be stored in different storage units. In addition, the energy management module 140 includes an energy rating calculator 142, a component calculator 140, an energy calculator 143, and a priority determiner 145. Of course, each of these components or some components may be implemented in separate hardware and / or software. Meanwhile, although each component of FIG. 1 is illustrated as being included in one device, this is exemplary and at least some of the components of FIG. 1 may be a network (for example, a local network such as a LAN or a wide area network such as the Internet network). Of course, it can be connected through). Likewise, in FIG. 2, at least some of the components of the energy management module 140 may be connected to and interact with each other through a network (for example, a local network such as a LAN or a wide area network such as the Internet network). Of course. On the other hand, when the components are connected to each other via a network it must be provided with the components for network communication, of course, these network communication techniques are well known techniques and will be omitted.

As described above, although the present invention has been described with reference to the limited embodiments and the drawings, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from these descriptions. This is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

100: energy efficiency diagnosis and improvement device 110: user input unit
120: display unit 130: storage unit
140: energy management module 150: control unit
141: UI generator 142: energy rating calculator
143: energy calculation unit 144: component derivation unit
145: priority determination unit

Claims (21)

Calculating energy of a building target object using basic data necessary for energy calculation;
Deriving components that affect energy calculation of the building target building when there is a difference by comparing the calculated energy with the target energy that the building target building should have; And
And regenerating energy of the building object by changing at least one of the derived components.
The recalculating step is repeated until the recalculated energy satisfies the target energy. The method of claim 1,
And prioritizing the derived components.
In the retrieving step, the energy efficiency diagnosis and improvement method of regenerating the energy of the building object by changing the at least one component based on the predetermined priority. The method of claim 2,
The priority is one of preference and importance for each of the derived components. Energy efficiency diagnosis and improvement method characterized in that determined using at least one. The method of claim 3,
The priority is determined by further considering the material, size, and placement position of each of the derived components. The method of claim 1,
Refining the energy of the building target building,
Energy efficiency diagnosis and improvement method, characterized in that to re-energy the energy of the building object by changing at least one of the material, size and placement position of at least one of the derived components. The method of claim 1,
Each time the reclaiming step is performed repeatedly,
And generating a list of energy of the at least one component and the reclaimed building target building applied in the reclaiming step. The method of claim 1,
Deriving the components,
Energy efficiency diagnosis and improvement method, characterized in that the physical elements of the building target building of the design data of the building included in the basic data are derived as the components. The method of claim 1,
The derived components are energy efficiency diagnosis and improvement method, characterized in that the elements constituting the outer shell structure constituting the building object. The method of claim 1,
The basic data includes at least one of design data of the building target object, user data which varies according to the current state and purpose of the building target building, basic data related to an air conditioning system of the building target material, and material property data of the components. Energy efficiency diagnosis and improvement method characterized in that. The method of claim 1,
Calculating an energy efficiency level of the building target building by using physical elements of the building among basic data of the building target building;
If the calculated energy efficiency rating is not satisfied with the target energy efficiency rating, energy efficiency diagnosis and improvement method, characterized in that for calculating the energy of the building target building. An energy calculator configured to calculate energy of a building object using basic data necessary for energy calculation; And
And a component deriving unit for deriving components that affect the energy calculation of the building target building when there is a difference between the target energy that the building target building should have and the calculated energy.
The energy calculation unit may change the at least one of the derived components until the calculated energy satisfies the target energy, thereby recalculating the energy of the building object. Improve device. The method of claim 11,
Further comprising: a priority determiner for determining the priority of the derived components,
The energy calculation unit, the energy efficiency diagnosis and improvement apparatus, characterized in that for changing the at least one component on the basis of the predetermined priority whenever the energy of the building object is recalculated. The method of claim 12,
And the priority determiner determines the priority by using at least one of a preference and an importance for each of the derived components. The method of claim 13,
The priority determiner, the energy efficiency diagnosis and improvement device, characterized in that for determining the priority further considering the material, size and placement position of each of the derived components. The method of claim 11,
The energy calculation unit, the energy efficiency diagnosis and improvement device, characterized in that to re-energy the energy of the building object by changing at least one of the material, size and placement position of at least one of the derived components. . The method of claim 11,
Whenever the energy calculator recalculates the energy of the building target object, a UI (User Interface) generation is generated to generate a list of the energy of the at least one component applied to the regeneration of the energy and the rebuilt building target object. Energy efficiency diagnostic and improvement apparatus further comprising a. The method of claim 11,
And the component deriving unit derives physical elements of the building target building as the components from among design data of the building target building included in the basic data. The method of claim 11,
The derived components are energy efficiency diagnosis and improvement device, characterized in that the elements constituting the outer shell structure constituting the building target building. The method of claim 11,
The basic data includes at least one of design data of the building target object, user data which varies according to the current state and purpose of the building target building, basic data related to an air conditioning system of the building target material, and material property data of the components. Energy efficiency diagnostic and improvement apparatus characterized in that. The method of claim 11,
By using the physical elements of the building of the basic data of the building object And an energy rating calculator configured to calculate an energy efficiency rating of the building target building.
The energy calculating unit, the energy efficiency diagnostic and improvement device, characterized in that for calculating the energy of the building target building, if the energy efficiency rating calculated by the energy rating calculation unit is not satisfied with the target energy efficiency rating. A computer-readable recording medium having recorded thereon a program for executing the method of any one of claims 1 to 10 on a computer.
KR1020100138723A 2010-12-30 2010-12-30 Method and Apparatus for Determining and Improving Energy Efficiency of Apartment KR20120087295A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014084649A1 (en) * 2012-11-30 2014-06-05 단국대학교 산학협력단 Method for simulating bim based building energy
KR101532416B1 (en) * 2014-06-23 2015-06-30 옴니시스템 주식회사 Energy efficiency and metric calculating system
KR20160035807A (en) * 2014-09-24 2016-04-01 현대건설주식회사 Method of certification assessment of building
KR20160127297A (en) * 2015-04-24 2016-11-03 (주)우리젠 Self-diagnostic system and method for building energy efficiency

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014084649A1 (en) * 2012-11-30 2014-06-05 단국대학교 산학협력단 Method for simulating bim based building energy
KR101532416B1 (en) * 2014-06-23 2015-06-30 옴니시스템 주식회사 Energy efficiency and metric calculating system
KR20160035807A (en) * 2014-09-24 2016-04-01 현대건설주식회사 Method of certification assessment of building
KR20160127297A (en) * 2015-04-24 2016-11-03 (주)우리젠 Self-diagnostic system and method for building energy efficiency

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