CN107062383A - A kind of Real-time Load computational methods for considering building thermal inertia and solar radiation influence - Google Patents

A kind of Real-time Load computational methods for considering building thermal inertia and solar radiation influence Download PDF

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Publication number
CN107062383A
CN107062383A CN201710289891.0A CN201710289891A CN107062383A CN 107062383 A CN107062383 A CN 107062383A CN 201710289891 A CN201710289891 A CN 201710289891A CN 107062383 A CN107062383 A CN 107062383A
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solar radiation
real
temperature
outdoor
thermal inertia
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孙士恩
费盼峰
高新勇
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Huadian Electric Power Research Institute Co Ltd
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Huadian Electric Power Research Institute Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1048—Counting of energy consumption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention provides a kind of Real-time Load computational methods for considering building thermal inertia and solar radiation influence, the outdoor combined air temperature simplified mathematical model of solar radiation influence and building to solar radiative absorption characteristic is considered including proposing one, and propose that a consideration building thermal inertia is to consider that outdoor temperature has the outdoor integrated equivalent temperature simplified mathematical model of decay and retardance to indoor influence, finally propose a kind of real-time heating demand computation model for considering building thermal inertia and solar radiation influence.The method provided using the present invention, it is easy to which computer measurement and control is realized, through more can accurately and reliably determine two net supply and return water temperatures using confirmation, it is to avoid caused to supply or owed to supply, and had preferable energy-saving and emission-reduction benefit.

Description

A kind of Real-time Load computational methods for considering building thermal inertia and solar radiation influence
Technical field
The present invention relates to a kind of Real-time Load computational methods for considering building thermal inertia and solar radiation influence, belong to collection Middle heating technology field.
Background technology
It is excellent that central heating technology is easily achieved energy-saving, scientific management, raising heating quality, improvement environmental quality etc. Point, and the mainstream technology as current building winter heating.Central heating is using hot water or steam as heating agent, by one Or multiple thermals source pass sequentially through initial station, once net, heat exchange station and secondary network, heat supply is carried out to region heat user.Concentrate and supply Heat considers the factors such as building structure, environmental condition and the pipe network of heat user, adjusts heating demand, heat user is supplied Heat, makes it maintain comfortable temperature.In central heating, the regulation of load is the most key.The adjusting method of load is to building The quality of heating has a great impact, and accurately and reliably Load Calculation Method is the important foundation of advanced central heating technology.
Currently, the load of central heating is typically to be calculated to obtain according to environment real time temperature, and building thermal inertia is not considered Influence to Real-time Load.Exist because building Thermal Synthetic is inert, outdoor temperature exists to indoor influence to decay and prolong Chi Xing.At the same time, due to the presence of solar radiation, the heat that obtains of building increases, and required heat supply Real-time Load can be corresponding Reduce.Current Load Calculation Method does not consider these influence factors, therefore there is larger deficiency, easily causes larger Deviation.
Therefore a kind of Real-time Load computational methods for considering building thermal inertia and solar radiation influence are proposed, are collected to promoting The energy-saving of middle heat supply has important practical significance.
The Chinese patent of Application No. 201410298209.0 discloses a kind of two nets for solar radiation for backwater temperature Spend control method, can accurately and reliably determine two net supply and return water temperatures, it is to avoid excessive heat supply, but do not consider building thermal inertia and Solar radiation influences.
The content of the invention
It is an object of the invention to overcome above shortcomings in the prior art, and provide a kind of consideration reasonable in design Building thermal inertia and the Real-time Load computational methods of solar radiation influence, more can accurately and reliably determine that two nets supply backwater temperature Degree, it is to avoid caused to supply or owed to supply.
The present invention the used technical scheme that solves the above problems is：One kind considers building thermal inertia and solar radiation shadow Loud Real-time Load computational methods, it is characterised in that：Comprise the following steps：
A, the Real-time Load calculating initial model formula (1) for drawing consideration building thermal inertia and solar radiation influence, i.e., q0=qw+qc=f (tz,tn…)+f(tτ,tn,…)；
B, draw radiator hot-fluid q0Computation model formula (2), i.e. q0=f (tm,tn...)=k (tm-tn)；
C, show that exterior window and Air Infiltration integrate hot-fluid qwComputation model formula (3), i.e. qw=f (tz,tn...)=k1(tn- tz)；
D, draw wall enclosed structure sink flows qcComputation model formula (4), i.e. qc=f (tτ,tn...) and=k2(tn-tτ)；
E, by step a-d it is to draw heat supply Real-time Load computation model formula (5), i.e.,Wherein：
Current outdoor integrated temperature tzComputation model is formula (6), i.e. tz=tw+K3Iz；
Current outdoor integrates equivalent temperature tτComputation model is formula (7), i.e.,
It is to draw current control indoor temperature t by formula (5)nThe radiator supply and return water riser t of required offerm；
In step a-e, q0For radiator hot-fluid, qwIt is that exterior window and Air Infiltration integrate hot-fluid, qcDissipated for wall enclosed structure Hot-fluid, tmFor radiator supply and return water riser, tnFor indoor temperature, k is the heat exchanger heat transfer characterisitic parameter after simplifying, tzFor Current outdoor integrated temperature, k1For the exterior window complex heat transfer characterisitic parameter after simplification, tτEquivalent temperature, k are integrated for current outdoor2 For the wall heat transfer characterisitic parameter after simplification, twFor outdoor temperature, IzFor total solar radiation intensity, k3For the surface after simplification too Positive absorptive rate of radiation and coefficient of heat transfer ratio；For outdoor combined air temperature before delay time T hour, ν is wall attenuation coefficient, For the outdoor integrated mean temperature in the previous cycle.
Heat exchanger heat transfer characterisitic parameter k after the present invention is simplified, the exterior window complex heat transfer characterisitic parameter k after simplifying1And letter Wall heat transfer characterisitic parameter k after change2, with the insulation situation of building, Heating Design relating to parameters in central heating, can pass through Engineering experience and field experiment method are obtained.
Outdoor temperature t of the present inventionwWith total solar radiation intensity IzIt can be obtained by respective sensor and relevant device collection, Surface solar radiative absorption rate and coefficient of heat transfer ratio k after simplification3It can be obtained according to historical data data and test method.
Wall attenuation coefficient ν of the present invention and delay time T can be obtained according to historical data data and test method.
Invention compared with prior art, with advantages below and effect：The present invention is examined including proposing one Consider the outdoor combined air temperature simplified mathematical model (formula 6) of solar radiation influence and building to solar radiative absorption characteristic, And propose that a consideration building thermal inertia is to consider that outdoor temperature has the outdoor comprehensive of decay and retardance to indoor influence Be fated amount temperature simplified mathematical model (formula 7), final to propose that one kind considers building thermal inertia and solar radiation influence Real-time heating demand computation model (formula 5).The method provided using the present invention, it is easy to realized by computer measurement and control, is used Adjusted in the automatic operating of actual heat exchange station, more can accurately and reliably determine two net supply and return water temperatures, it is to avoid caused confession Or owe to supply, there is preferable energy-saving and emission-reduction benefit.
Embodiment
Below by embodiment, the present invention is described in further detail, following examples be explanation of the invention and The invention is not limited in following examples.
The present embodiment comprises the following steps：
A, the Real-time Load calculating initial model formula (1) for drawing consideration building thermal inertia and solar radiation influence, i.e., q0=qw+qc=f (tz,tn…)+f(tτ,tn,…)。
B, draw radiator hot-fluid q0Computation model formula (2), i.e. q0=f (tm,tn...)=k (tm-tn)。
C, show that exterior window and Air Infiltration integrate hot-fluid qwComputation model formula (3), i.e. qw=f (tz,tn...)=k1(tn- tz)。
D, draw wall enclosed structure sink flows qcComputation model formula (4), i.e. qc=f (tτ,tn...) and=k2(tn-tτ)。
E, by step a-d it is to draw heat supply Real-time Load computation model formula (5), i.e.,Formula (5) is to consider building thermal inertia and solar radiation influence Real-time heating demand computation model, wherein：
Current outdoor integrated temperature tzTo consider solar radiation influence, computation model is formula (6), i.e. tz=tw+K3Iz, Formula (6) is to consider solar radiation influence and building to simplify calculating to the outdoor combined air temperature of solar radiative absorption characteristic Model；
Current outdoor integrates equivalent temperature tτTo consider the temperature of building masonry wall retardance and decay, simplified mathematical model For formula (7), i.e.,Formula (7) is to consider that building thermal inertia considers outdoor temperature to indoor There is decay in influence and the current outdoor of retardance integrates equivalent temperature simplified mathematical model；
It is to draw current control indoor temperature t by formula (5)nThe radiator supply and return water riser t of required offerm, i.e., Two net supply water temperatures are determined, that is, Real-time Load is determined.
In step a-e, q0For radiator hot-fluid, qwIt is that exterior window and Air Infiltration integrate hot-fluid, qcDissipated for wall enclosed structure Hot-fluid, tmFor radiator supply and return water riser, tnFor indoor temperature, k is the heat exchanger heat transfer characterisitic parameter after simplifying, tzFor Current outdoor integrated temperature, k1For the exterior window complex heat transfer characterisitic parameter after simplification, tτEquivalent temperature, k are integrated for current outdoor2 For the wall heat transfer characterisitic parameter after simplification, twFor outdoor temperature, IzFor total solar radiation intensity, k3For the surface after simplification too Positive absorptive rate of radiation and coefficient of heat transfer ratio；For outdoor combined air temperature before delay time T hour, ν is wall attenuation coefficient, For the outdoor integrated mean temperature of (generally 12 hours) in the previous cycle.
Heat exchanger heat transfer characterisitic parameter k after simplification, the exterior window complex heat transfer characterisitic parameter k after simplifying1And after simplifying Wall heat transfer characterisitic parameter k2For constant to be determined, have with the insulation situation of building, Heating Design parameter etc. in central heating Close, can be obtained by engineering experience and field experiment method.
Current outdoor temperature twWith total solar radiation intensity IzIt can be obtained by respective sensor and relevant device collection, letter Surface solar radiative absorption rate and coefficient of heat transfer ratio k after change3It can be obtained according to historical data data and test method.
Wall attenuation coefficient ν and delay time T can be obtained according to historical data data and test method.
Outdoor temperature tnIt can be obtained by manually setting and measuring.
During implementation, operation following steps of the invention：
1st, gather and store current outdoor temperature tw；
2nd, gather and store current outdoor total solar radiation intensity Iz；
3rd, according to historical data data and experiment, it is determined that surface solar radiative absorption rate and coefficient of heat transfer ratio after simplifying k3, and according to calculation formula (6), calculate outdoor combined air temperature tz；
4th, according to historical data data and experiment, the wall attenuation coefficient ν in formula (7), and delay time T are determined, and Outdoor integrated equivalent temperature t is calculated according to formula (7)τ；
5th, according to historical data data and experiment, coefficient k in formula (5), k are determined1、k2；
6th, two net supply water temperatures are determined.The data and parameter obtained according to above step, using formula (5) is simplified, are calculated Go out current control targe room temperature tnThe radiator supply and return water riser value t of two nets of required offerm。

Claims (4)

1. a kind of Real-time Load computational methods for considering building thermal inertia and solar radiation influence, it is characterised in that：Including such as Lower step：
A, the Real-time Load calculating initial model formula (1) for drawing consideration building thermal inertia and solar radiation influence, i.e. q0=qw +qc=f (tz,tn…)+f(tτ,tn,…)；
B, draw radiator hot-fluid q0Computation model formula (2), i.e. q0=f (tm,tn...)=k (tm-tn)；
C, show that exterior window and Air Infiltration integrate hot-fluid qwComputation model formula (3), i.e. qw=f (tz,tn...)=k1(tn-tz)；
D, draw wall enclosed structure sink flows qcComputation model formula (4), i.e. qc=f (tτ,tn...) and=k2(tn-tτ)；
E, by step a-d it is to draw heat supply Real-time Load computation model formula (5), i.e.,Wherein：
Current outdoor integrated temperature tzComputation model is formula (6), i.e. tz=tw+K3Iz；
Current outdoor integrates equivalent temperature tτComputation model is formula (7), i.e.,
It is to draw current control indoor temperature t by formula (5)nThe radiator supply and return water riser t of required offerm；
In step a-e, q0For radiator hot-fluid, qwIt is that exterior window and Air Infiltration integrate hot-fluid, qcRadiated for wall enclosed structure Stream, tmFor radiator supply and return water riser, tnFor indoor temperature, k is the heat exchanger heat transfer characterisitic parameter after simplifying, tzTo work as Preceding outdoor combined air temperature, k1For the exterior window complex heat transfer characterisitic parameter after simplification, tτEquivalent temperature, k are integrated for current outdoor2For Wall heat transfer characterisitic parameter after simplification, twFor outdoor temperature, IzFor total solar radiation intensity, k3For the surface sun after simplification Absorptive rate of radiation and coefficient of heat transfer ratio；For outdoor combined air temperature before delay time T hour, ν is wall attenuation coefficient,For Outdoor integrated mean temperature in the previous cycle.
2. the Real-time Load computational methods according to claim 1 for considering building thermal inertia and solar radiation influence, its It is characterised by：Heat exchanger heat transfer characterisitic parameter k after simplification, the exterior window complex heat transfer characterisitic parameter k after simplifying1And after simplifying Wall heat transfer characterisitic parameter k2, with the insulation situation of building, Heating Design relating to parameters in central heating, can be passed through by engineering Test and field experiment method is obtained.
3. the Real-time Load computational methods according to claim 1 for considering building thermal inertia and solar radiation influence, its It is characterised by：Outdoor temperature twWith total solar radiation intensity IzIt can be obtained by respective sensor and relevant device collection, after simplifying Surface solar radiative absorption rate and coefficient of heat transfer ratio k3It can be obtained according to historical data data and test method.
4. the Real-time Load computational methods according to claim 1 for considering building thermal inertia and solar radiation influence, its It is characterised by：Wall attenuation coefficient ν and delay time T can be obtained according to historical data data and test method.
CN201710289891.0A 2017-04-27 2017-04-27 A kind of Real-time Load computational methods for considering building thermal inertia and solar radiation influence Pending CN107062383A (en)

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CN107563558A (en) * 2017-09-06 2018-01-09 天津市爱默森电气科技有限公司 The measuring method and device of heating-amount
CN108006863A (en) * 2017-11-19 2018-05-08 天津大学 Load calculation optimization method for concrete radiation cooling system
CN108197404A (en) * 2018-01-22 2018-06-22 河北工业大学 A kind of building load Forecasting Methodology based on time hereditary capacity
CN109240366A (en) * 2018-08-10 2019-01-18 北京科技大学 A kind of hot activation building system equivalent outdoor temperature forecast Control Algorithm
CN109974078A (en) * 2019-03-20 2019-07-05 哈尔滨工业大学 A kind of heating method of nilas building
CN110097217A (en) * 2019-04-16 2019-08-06 天津大学 A kind of building dynamic Room Temperature Prediction method based on equivalent RC model
CN111829140A (en) * 2020-06-03 2020-10-27 西安工程大学 Textile air conditioner automatic control adjusting method based on annual time-by-time load calculation
CN113203187A (en) * 2021-04-28 2021-08-03 清华大学 Building heating ventilation air conditioning load optimization control method based on partial linear model
CN113587207A (en) * 2021-07-26 2021-11-02 深圳前海中碳综合能源科技有限公司 Heating control method and device and computer equipment
IT202000016471A1 (en) * 2020-07-08 2022-01-08 Alperia Bartucci S P A SYSTEM AND METHOD OF ADAPTIVE TEMPERATURE CONTROL OF A CARRIER FLUID OF A HEATING SYSTEM

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Cited By (16)

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Publication number Priority date Publication date Assignee Title
CN107563558A (en) * 2017-09-06 2018-01-09 天津市爱默森电气科技有限公司 The measuring method and device of heating-amount
CN108006863B (en) * 2017-11-19 2020-01-31 天津大学 Load calculation optimization method for concrete radiation cooling systems
CN108006863A (en) * 2017-11-19 2018-05-08 天津大学 Load calculation optimization method for concrete radiation cooling system
CN108197404A (en) * 2018-01-22 2018-06-22 河北工业大学 A kind of building load Forecasting Methodology based on time hereditary capacity
CN108197404B (en) * 2018-01-22 2021-03-16 河北工业大学 Building load prediction method based on time genetic characteristics
CN109240366A (en) * 2018-08-10 2019-01-18 北京科技大学 A kind of hot activation building system equivalent outdoor temperature forecast Control Algorithm
CN109974078B (en) * 2019-03-20 2020-11-06 哈尔滨工业大学 Heating method for ice-shell building
CN109974078A (en) * 2019-03-20 2019-07-05 哈尔滨工业大学 A kind of heating method of nilas building
CN110097217A (en) * 2019-04-16 2019-08-06 天津大学 A kind of building dynamic Room Temperature Prediction method based on equivalent RC model
CN110097217B (en) * 2019-04-16 2023-04-07 天津大学 Building dynamic room temperature prediction method based on equivalent RC model
CN111829140A (en) * 2020-06-03 2020-10-27 西安工程大学 Textile air conditioner automatic control adjusting method based on annual time-by-time load calculation
IT202000016471A1 (en) * 2020-07-08 2022-01-08 Alperia Bartucci S P A SYSTEM AND METHOD OF ADAPTIVE TEMPERATURE CONTROL OF A CARRIER FLUID OF A HEATING SYSTEM
WO2022009083A1 (en) * 2020-07-08 2022-01-13 Alperia Bartucci S.P.A. System and method of adaptive control of the temperature of a vector fluid of an heating system
CN113203187A (en) * 2021-04-28 2021-08-03 清华大学 Building heating ventilation air conditioning load optimization control method based on partial linear model
CN113587207A (en) * 2021-07-26 2021-11-02 深圳前海中碳综合能源科技有限公司 Heating control method and device and computer equipment
CN113587207B (en) * 2021-07-26 2022-06-10 深圳前海中碳综合能源科技有限公司 Heating control method and device and computer equipment

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