KR102232703B1 - Hybrid type natural ventilation system - Google Patents

Abstract

The present invention relates to a hybrid type natural ventilation system, the hybrid type natural ventilation system according to the present invention is installed outdoors, the first sensor unit for measuring the temperature, humidity and wind speed of the outside air; A second sensor unit installed indoors to measure temperature and humidity of indoor air; And a blower fan that forcibly flows the indoor air, wherein the blower fan controls the operation of the blower fan based on measured values measured by the first sensor unit and the second sensor unit; Characterized in that.

Description

Hybrid type natural ventilation system {HYBRID TYPE NATURAL VENTILATION SYSTEM}

The present invention relates to a hybrid natural ventilation system, and more specifically, to increase the cooling effect and thermal comfort of the room by automatically driving a blower fan based on the temperature, humidity, and wind speed values of outdoor air and indoor air. It relates to a hybrid type natural ventilation system.

In general, a building is equipped with a door for access, ventilation, and windows for viewing and lighting. Doors as described above may be installed in a hinged structure or a sliding structure, and in the case of a window, a sliding door is often used.

Such a window opens or closes due to indoor ventilation or temperature control, rain or snow, or pollution of outdoor air such as yellow sand. However, since opening or closing of the window in the above-described situation is entirely performed by a person (for example, a resident, etc.), there is a problem in that damage may occur if an appropriate response is not performed.

In addition, in an indoor space in which the window is not installed at a loading position for ventilation and cooling, or in an indoor space in which no window is installed, more comfortable ventilation and cooling are not achieved, resulting in greater difficulty.

Accordingly, Korean Patent Laid-Open No. 10-2016-0024814 discloses a method of acquiring set temperature history information in response to pre-stored weather element information and scheduling a set temperature of an air conditioner accordingly. 1723301 discloses an automatic window opening and closing device that opens and closes a window in response to noise or rainfall with a set sound pattern, and Korean Patent Laid-Open No. 10-2013-0096924 discloses a set by sensing temperature, humidity, carbon dioxide, and rainfall with a sensor. A system for automatically opening and closing a window by driving a motor within a range is disclosed.

However, in the conventional invention as described above, it is not possible to take into account the fluctuations according to the season or time, and by simply adjusting whether the window is opened or closed through the difference between the set value and the measured value, the comfort that the actual indoor resident feels is not reflected. There is this.

In addition, even if the window is opened in consideration of indoor and outdoor air temperature and humidity, if the wind speed of the outside air is weak, the outside air does not flow into the open window, so that the cooling effect or thermal comfort of the window opening cannot be expected. It is done.

In addition, the above-described conventional inventions relate to ventilation and cooling systems implemented only through windows, and do not solve the problems of ventilation and cooling in a space where a window is not properly positioned or a window is not installed.

Therefore, rather than deciding whether to ventilate through a comparison of standardized temperatures, it may vary depending on the season or time, and it can be changed according to the degree to which people living indoors feel comfortable, and the blowing fan is caused by the wind speed of the outside air. There is a need to develop a natural ventilation system that enables natural ventilation even on days when there is no air movement by being driven so that people living indoors can feel comfortable.

[Patent Document 1] Republic of Korea Patent Publication 10-2016-0024814 (published date: 2016.03.07.) [Patent Document 2] Korean Patent Registration 10-1723301 (Registration Date: 2017.03.29.) [Patent Document 3] Republic of Korea Patent Publication 10-2013-0096924 (Published: 2013.09.02.)

In order to solve the above problems, the present invention measures the temperature, humidity, and wind speed values of outdoor air and indoor air, and determines the degree of comfort of the occupant based on the measured values, so that the blowing fan can be operated with various modules. It is an object of the present invention to provide a hybrid type natural ventilation system that increases indoor cooling effect and thermal comfort by providing a control unit to control it.

Hybrid type natural ventilation system according to an embodiment of the present invention for achieving the above object is installed outdoors, the first sensor unit for measuring the temperature, humidity and wind speed of the outside air; A second sensor unit installed indoors to measure temperature and humidity of indoor air; And a blower fan that forcibly flows the indoor air, wherein the blower fan controls the operation of the blower fan based on measured values measured by the first sensor unit and the second sensor unit; Characterized in that.

In addition, the hybrid type natural ventilation system according to the present invention comprises: a first driving module for the control unit to always drive the blowing fan; And a second driving module configured to drive the blowing fan when the outside air velocity is less than or equal to a preset reference value.

In addition, the hybrid-type natural ventilation system according to the present invention further comprises a temperature difference driving module for driving the blowing fan by the control unit by a temperature difference between the indoor air or outside air, wherein the temperature difference driving module includes an indoor temperature (T _ZONE ). And a first temperature difference driving module for driving the blower fan when ≥ outside temperature (T _OUT ) and indoor temperature (T _ZONE ) ≥ set temperature (T _{SET ).}

In addition, in the hybrid type natural ventilation system according to the present invention, the temperature difference driving module is an indoor temperature (T _ZONE ) ≥ an _{outdoor temperature (T OUT} ) and an indoor temperature (T _ZONE ) ≥ a set temperature (T _SET ), and It characterized in that it further comprises a; second temperature difference driving module for driving the blowing fan when the wind speed is less than a preset reference value.

In addition, the hybrid-type natural ventilation system according to the present invention further includes an enthalpy difference driving module in which the control unit drives the blowing fan by an enthalpy difference of the indoor air or outside air, wherein the enthalpy difference driving module includes an indoor enthalpy ( And a first enthalpy difference driving module for driving the blower fan when _{H ZONE} ) ≥ outside air enthalpy (H _OUT ) and indoor temperature (T _ZONE ) ≥ set temperature (T _{SET ).}

In addition, in the hybrid type natural ventilation system according to the present invention, the enthalpy difference driving module is an indoor enthalpy (H _ZONE ) ≥ an outdoor air enthalpy (H _OUT ) and an indoor temperature (T _ZONE ) ≥ a set temperature (T _SET ), and the measured outdoor air And a second enthalpy differential driving module for driving the blowing fan when the wind speed of is less than or equal to a preset reference value.

In addition, the hybrid-type natural ventilation system according to the present invention is characterized in that the preset reference value of the wind speed is set to a minimum value of the outdoor wind speed at which natural inflow of outside air starts to be possible through an open window.

In addition, the hybrid type natural ventilation system according to the present invention is characterized in that the set temperature (T _SET ) is varied over time.

In addition, the hybrid type natural ventilation system according to the present invention further comprises an automatic operation module for selecting and applying a module to be set by the control unit.

In addition, the hybrid type natural ventilation system according to the present invention further includes a display unit for visually displaying information of the control unit and whether or not the blowing fan is operated by the blowing fan, wherein the display unit includes a temperature of the indoor air and outside air, It is characterized in that the humidity and wind speed measurement values, the driving rate of the blowing fan and the setting module of the control unit are visually displayed.

In addition, the hybrid-type natural ventilation system according to the present invention further comprises an operation unit for selecting and applying the module of the blower fan through a user's manual operation.

According to the hybrid type natural ventilation system according to the present invention as described above, each module of the control unit can be selectively applied according to the season, time, environment, etc., so that energy saving is excellent and a comfortable indoor environment is created.

In addition, as the ventilation fan is determined to be driven in consideration of the comfort level of the occupant, unlike the ventilation method by simply temperature or enthalpy, the occupant's feeling of use and satisfaction are high.

In addition, by providing a blower fan on one side of the outer window or the inner window, and a control unit for controlling the drive of the blower fan, the blower fan is operated even when the air velocity is low and air does not flow into the open window. It has the effect of remarkably increasing ventilation efficiency by driving to allow smooth inflow of outside air.

In addition, there is an effect that comfortable ventilation is automatically possible by only driving the blower fan, so that comfortable and efficient ventilation and cooling are possible even in an indoor room where the location, size, and capacity of the window is not appropriate or the window is not installed.

In addition, the display unit induces residents to easily decide whether to apply each module of the control unit, and through the automatic operation module, each module is applied according to conditions such as temperature or time without separate manual operation, making it easier for residents. There is an effect that can be used.

In addition, there is an economical effect of reducing energy use by allowing cooling by using natural ventilation through driving a blower fan without using a cooling device that consumes a lot of energy.

1 is a block diagram showing the structure of a hybrid natural ventilation system according to an embodiment of the present invention.
2 is a layout diagram showing a school classroom arrangement state for examining a cooling effect when a ventilation fan of a hybrid type natural ventilation system according to an embodiment of the present invention is operated.
3(a) is a state diagram showing a state in which a blowing fan according to an embodiment of the present invention is installed on an outer window to discharge indoor air to the outside.
3(b) is a state diagram showing a state in which a blower fan according to an embodiment of the present invention is installed on an outer window so that outside air flows into the room.
4(a) is a state diagram showing a state in which a blowing fan according to an embodiment of the present invention is installed on an inner window to discharge indoor air to the outside.
4(b) is a state diagram showing a state in which a blowing fan according to an embodiment of the present invention is installed on an inner window to inflow outside air into the room.
5(a) is a first state diagram showing a ventilation state when a blowing fan according to an embodiment of the present invention is installed on an inner window and an outer window.
5(b) is a second state diagram showing a ventilation state when a blowing fan according to an embodiment of the present invention is installed on the inner and outer windows.
6 is a partial enlarged view showing a detailed configuration of a display unit of a hybrid type natural ventilation system according to an embodiment of the present invention.
7 is a partial enlarged view showing a detailed configuration of an operation unit of a hybrid type natural ventilation system according to an embodiment of the present invention.
8 is a graph showing a ratio of a degree of comfort of an indoor resident according to an indoor temperature and an external temperature according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. First of all, it should be noted that the same components or parts in the drawings denote the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related known functions or configurations are omitted so as not to obscure the subject matter of the present invention.

1 is a block diagram showing the structure of a hybrid-type natural ventilation system according to an embodiment of the present invention, and FIG. 2 is for examining the cooling effect when a blowing fan of the hybrid-type natural ventilation system according to an embodiment of the present invention is operated. It is a layout diagram showing the state of the school classroom arrangement.

Hybrid type natural ventilation system 1 according to the present invention is installed on the wall of the building as shown in Figs. It is a natural ventilation system that can be applied to a building including an inner window 20 that is installed and opened toward the corridor.

Specifically, the hybrid-type natural ventilation system 1 according to the present invention is composed of an outer window 10 having one side in contact with the outside air, and one side corresponding to the outer window 10 is another room such as a corridor or a living room. It relates to a natural ventilation system applied to a space composed of an inner window 20 provided on a wall adjacent to the space, and may be applied to, for example, a classroom, an office, or a home.

In addition, the hybrid type natural ventilation system 1 according to the present invention is not limited to the configuration including the outer window 10 and the inner window 20 as described above, and thus, although not shown, opposite side walls All of these may be applied to a space composed of the outer window 10 adjacent to the outside air.

In addition, the hybrid type natural ventilation system (1) according to the present invention is applied to a space in which both facing side walls are composed of walls adjacent to other indoor spaces, and both facing windows are composed of inner windows (20). It can also be implemented.

The hybrid type natural ventilation system 1 according to an embodiment may include a first sensor unit 100, a second sensor unit 200, and a blowing fan 300 as shown in FIG. 1.

The first sensor unit 100 may be a sensor that is installed on the outer window 10 that is opened to the outside and measures the temperature, humidity, and wind speed of the outside air.

Specifically, the first sensor unit 100 is provided at least one outside the outer window 10 to measure the temperature, humidity and wind speed of the outside air, a temperature sensor for measuring temperature, a temperature sensor for measuring humidity. It may be configured to include a humidity sensor and an anemometer for measuring wind speed.

In addition, the first sensor unit 100 may use a known temperature sensor, a humidity sensor, and a wind speed sensor that are generally used, but is not limited thereto. Anything that can be measured by receiving information about humidity and wind speed may be usable without limitation.

In addition, the first sensor unit 100 is configured such that information on the measured outdoor temperature, humidity, and wind speed is signaled and transmitted to the control unit 310.

Accordingly, the first sensor unit 100 may be connected to the control unit 310 through wireless or wired communication.

In addition, the first sensor unit 100 transmits the measured wind speed value to a second driving module 312, a second temperature difference driving module 313b, and a second enthalpy difference driving module 314b, which will be described later, and the The two driving module 312, the second temperature difference driving module 313b, and the second enthalpy difference driving module 314b may control the operation of the blowing fan 300 based on the wind speed value.

The second sensor unit 200 may be a measurement sensor that measures the temperature and humidity of indoor air.

Specifically, at least one second sensor unit 200 is provided on one side of an indoor wall of the inner window 20 corresponding to the first sensor unit 100 to measure the temperature and humidity of indoor air. , In the same manner as the first sensor unit 100, a known temperature sensor and a humidity sensor that are generally used may be used.

In addition, the second sensor unit 200 enables the measured information on the temperature and humidity of indoor air to be signaled and transmitted to the control unit 300.

Accordingly, the second sensor unit 200 may be connected to the control unit 310 through wireless or wired communication.

Therefore, the hybrid type natural ventilation system 1 according to the present invention controls the driving of the blowing fan 300 based on the measured values measured by the first sensor unit 100 and the second sensor unit 200 And, through this, it is possible to reduce the cooling and heating load and improve the comfort of indoor residents.

3(a) is a state diagram showing a state in which a blower fan according to an embodiment of the present invention is installed on an outer window to discharge indoor air to the outside, and FIG. 3(b) is a diagram illustrating a blower according to an embodiment of the present invention. It is a state diagram showing a state in which a fan is installed on an outer window to inflow outside air into the room, and FIG. 4(a) shows a state in which a blowing fan according to an embodiment of the present invention is installed on the inner window to discharge indoor air to the outside. Fig. 4(b) is a state diagram showing a state in which a blowing fan according to an embodiment of the present invention is installed on an inner window to inflow outside air into the room, and Fig. 5(a) is an embodiment of the present invention It is a first state diagram showing the ventilation state when the blowing fan according to is installed on the inner and outer windows, and FIG. 5(b) is a case where the blowing fan according to an embodiment of the present invention is installed on the inner and outer windows It is a second state diagram showing the ventilation state of.

The blower fan 300 according to the present invention measures the measured values measured by the first sensor unit 100 and the second sensor unit 200 as shown in FIGS. 3(a) to 5(b). It is provided to force the indoor air to flow as a basis.

Therefore, the blowing fan 300 is provided at least one side adjacent to the outer window 10 or the inner window 20, and outflows indoor air to the outside or corridor under the control of the controller 310 to be described later. Or allow outside air to flow into the room.

Specifically, the blowing fan 300 is caused by the temperature, humidity, and wind speed values of the outside air measured by the first sensor unit 100, and the temperature and humidity values of the indoor air measured by the second sensor unit 200. Therefore, it can be driven according to the necessity of ventilation or cooling.

Therefore, the blowing fan 300 is provided at least one side adjacent to the outer window 10 or the inner window 20, as shown in Figs. 3 (a) and 4 (a), indoor air The outside air is allowed to flow in through the outer window 10 by outflowing to the outside or by outflowing indoor air into the corridor.

In addition, the blowing fan 300 may allow outside air to flow into the interior by the blowing fan 300 as shown in FIGS. 3(b) and 4(b).

When cooling by using natural ventilation through the window, the amount of ventilation introduced into the room may vary from time to time depending on the wind speed and direction of the outside air. Due to insufficient ventilation, there may be a problem in that the effect of natural ventilation or natural cooling is insufficient.

Accordingly, the blower fan 300 is provided so that natural ventilation and natural cooling can be performed by appropriately flowing a constant and comfortable amount of outdoor air through an open window even in weather where the wind speed of the outside air is small and no wind is formed.

In addition, even in an indoor space where natural ventilation and natural cooling are not performed smoothly because the installation location of the window or the capacity of the window is not appropriate, the ventilation fan 300 is driven to provide a comfortable amount of outside air. It may be provided so that natural ventilation and natural cooling can be performed.

In addition, the blowing fan 300 may be provided with at least one or more on one side of the outer window 10 or at least one or more on one side of the inner window 20 according to the size and shape of the space to be installed. As shown in Figure 5 (b), it may be provided in plural in both the outer window 10 and the inner window 20.

The blowing fan 300 according to an embodiment is driven by the control of the control unit 310 when the wind speed of the outside air is less than a preset reference value in which outside air cannot be introduced through a window, thereby discharging indoor air to the outside, thereby opening a window. This allows outdoor air to flow into the room.

In addition, the blowing fan 300 may be installed so that outside air can be directly introduced into the room through the blowing fan 300 as shown.

Meanwhile, the blowing fan 300 may include a control unit 310, a display unit 320, and an operation unit 330.

The control unit 310 may be provided to control the operation of the blowing fan 300.

Specifically, the control unit 310 receives the temperature, humidity, and wind speed values of the outside air measured by the first sensor unit 100 and the temperature and humidity values of the indoor air measured by the second sensor unit 200. It is possible to control the ventilation fan 300 to appropriately drive by determining a cooling effect according to window opening and ventilation that can satisfy the thermal comfort of the resident.

Accordingly, the control unit 310 may include a first driving module 311, a second driving module 312, a temperature difference driving module 313, and an enthalpy difference driving module 314 according to conditions of indoor air and outside air. have.

The first driving module 311 may be a module for constantly driving the blowing fan 300.

Specifically, the first driving module 311 controls the blowing fan 300 to be always driven, and is independent of the measured values measured by the first sensor unit 100 and the second sensor unit 200 Thus, the blowing fan 300 is controlled to be always driven for a predetermined time.

In addition, the first driving module 311 may be selectively applied according to a user's selection or a preset program.

For example, in the case of a school, the first driving module 311 is set at a time when ventilation is required regardless of the state of outside air and bet during a specific time during lunch time or when lunch time ends, so that the blower fan 300 is operated. It may be a module provided to drive.

Therefore, the first driving module 311 is economical to prevent energy loss due to unnecessary operation of the above-described devices or sensors at a time when the blower fan 300 needs to be driven regardless of the state of the outside air and the inside air. You can see the effect.

The second driving module 312 is provided to drive the blowing fan 300 when the wind speed of the outside air is less than or equal to a preset reference value.

Specifically, the second driving module 312 drives the blowing fan 300 when the outside air velocity is less than a preset reference value, that is, when the outside air velocity is low and no wind is introduced into the room, regardless of the measured temperature and humidity values. Control so that it can be.

Accordingly, the preset reference value may be set as the minimum value of the outside air velocity at which natural inflow of outside air starts to become possible to the opened outer window 10.

When cooling using natural ventilation, the amount of ventilation introduced into the room may vary from time to time depending on the wind speed and direction of the outside air.Especially, when the wind speed of the outside air is too low and there is no wind, even if the window is open, there is no air entering the room. There is a problem that cooling is not performed.

Accordingly, the second driving module 312 is provided to solve the problem that occurs during natural ventilation as described above.

In addition, the preset reference value of the wind speed according to the present invention may be set to 0.5 m/s, but this reference value is not limited thereto, and may be applied in various values according to the setting location, season, operation time, and user's request. I can.

The temperature difference driving module 313 may be a module that drives the blowing fan 300 by a temperature difference between the indoor air or outside air.

Specifically, the temperature difference driving module 313 is a module that controls the driving of the blowing fan 300 based on the temperature difference between the outside air and the indoor air, and the first sensor unit 100 and the second sensor unit 200 By analyzing the difference between the measured indoor air temperature and outside air temperature, it is determined that the comfort of the occupant is increased when the blowing fan 300 is driven, and the ventilation fan 300 is driven to allow ventilation to occur.

In addition, the temperature difference driving module 313 may include a first temperature difference driving module 313a and a second temperature difference driving module 313b.

The first temperature difference driving module 313a controls to drive the blower fan 300 when the _{indoor temperature (T ZONE} ) ≥ the external temperature (T _OUT ) and the indoor temperature (T _ZONE ) ≥ a set temperature (T _{SET ).} do.

In the present invention, the indoor temperature is indicated as T _{ZONE, the} external temperature is indicated as T _{OUT, and the} set temperature is indicated _{as T SET.}

Here, the indoor temperature means an indoor temperature at the present or a specific point in time, the external temperature means an outdoor temperature at the present or a specific point in time, and the set temperature may mean a temperature to be set indoors.

Specifically, the indoor temperature may be measured using the second sensor unit 200, the outdoor temperature may be measured using the first sensor unit 100, and the set temperature is a time or a location. The value varies according to the user's operation, or may be a temperature according to statistics calculated in advance.

For example, the temperature according to the user's manipulation means a temperature set by a user who is an indoor resident.

The temperature according to the statistics calculated in advance may mean a temperature determined in consideration of a degree of comfort felt by a user living in an indoor space of a building under natural ventilation conditions.

8 is a graph showing a ratio of a degree of comfort of an indoor resident according to an indoor temperature and an external temperature according to an embodiment of the present invention.

The ratio of the number of residents who feel comfortable among indoor residents according to the present invention has a temperature of 90% and a temperature of 80% as shown in FIG. 8, and may be varied according to the external temperature.

Assuming statistics according to the ASHRAE Standard 55-2010 adaptive comfort model with reference to FIG. 8, the set temperature refers to a temperature within the range of 90% to 80% of the proportion of residents who feel comfortable among indoor residents. , The set temperature may vary depending on time and season.

In addition, the set temperature may be varied within the temperature range of 90% to 80%.

In addition, since 90% to 80% of the above temperature range is only an embodiment of the present invention, the above-described ratio may be slightly changed.

Also, the value of the set temperature may be changed depending on whether the window is currently open.

Specifically, the temperature at which the ratio of the residents who feel comfortable among the residents is 80% has a certain range, and the temperature for driving the above-described blowing fan when the set temperature is determined within the range has an upper limit of the range. The other may have a lower limit of the above range.

Whether the upper and lower limits are applied may vary depending on the heating/cooling load, weather, and time.

In addition, the set temperature (T _SET ) is variable over time and may vary depending on the natural environment such as season, wind, amount of sunlight, rainfall, etc.For example, when the wind is strong or the amount of sunlight is weak, the window may have been opened or closed. When the user's experience temperature is relatively low, the set temperature may vary accordingly, and the determination of the set temperature depends on information on wind, season, rainfall, sunlight, etc., or statistical data on the user's perceived temperature. can do.

Therefore, when the indoor temperature is higher than the external temperature and the indoor temperature is higher than the set temperature, the first temperature difference driving module 313a determines and drives the blowing fan 300 in order to increase the comfort of the resident. do.

The second temperature difference driving module 313b may be a module that drives the blowing fan 300 due to the temperature difference between the indoor air or the outside air and the wind speed of the outside air.

Specifically, the second temperature difference driving module 313b analyzes the difference between the indoor air temperature and the outside temperature measured by the first sensor unit 100 and the second sensor unit 200 to increase the comfort of the occupant. After determining that it is in a possible state, the blowing fan 300 is driven according to the wind speed of the outside air measured by the first sensor unit 100 to allow ventilation to occur.

Accordingly, the second temperature difference driving module 313b is an indoor temperature (T _ZONE ) ≥ an _{outdoor temperature (T OUT} ) and an indoor temperature (T _ZONE ) ≥ a set temperature (T _SET ), and the measured wind speed of the outside air is a preset reference value. In the following cases, the blowing fan 300 is driven.

Accordingly, the second temperature difference driving module 313b determines the necessity of ventilation and cooling of the indoor space according to the temperature difference between the indoor air and the outside air in the same manner as the first temperature difference driving module 313a, and then ventilation. And even when it is determined that cooling is necessary, the blower fan 300 can be operated only when the wind speed of the outside air is lower than a preset reference value, that is, when the outside air does not flow into the room through an open outer window because the outside air wind speed is low. To be there.

Therefore, even when it is determined that ventilation is necessary due to the temperature difference between the indoor air and the outside air, the second temperature difference driving module 313b operates the blower fan 300 when natural ventilation is possible through an open outer window due to a large outdoor air velocity. It can be controlled not to run.

Accordingly, the second temperature difference driving module 313b may be a module provided to reduce energy much more than the first temperature difference driving module 313a.

At this time, the preset reference value of the wind speed is set to the minimum value of the wind speed at which the natural inflow of outside air starts to become possible through the open outer window 10, and is applied in the same manner as the second driving module 312. Can be.

Accordingly, the preset reference value of the wind speed may be set to 0.5 m/s, but this reference value is not limited thereto, and various values may be applied according to the setting location, season, operation time, and user's request.

The enthalpy difference driving module 314 may be a module that drives the blowing fan 300 by the enthalpy difference of the indoor air or outside air.

Specifically, the enthalpy difference driving module 314 is based on the measured values of the temperature and humidity of outdoor and indoor air measured by the first sensor unit 100 and the second sensor unit 200, respectively. It is provided to determine whether the fan 300 is driven.

The enthalpy is derived from the first law of thermodynamics, and in the present invention, the enthalpy of indoor and outdoor is calculated and compared.

Accordingly, the enthalpy difference driving module 314 displays the indoor enthalpy as H _ZONE and the external enthalpy as H _OUT .

In addition, the enthalpy difference driving module 314 may include a first enthalpy difference driving module 314a and a second enthalpy difference driving module 314b.

When the first enthalpy difference driving module 314a _{satisfies the indoor enthalpy (H ZONE} ) ≥ external enthalpy (H _OUT ) and the indoor temperature (T _ZONE ) ≥ set temperature (T _SET ), the blower fan 300 is driven. To be able to decide.

For example, when the indoor enthalpy is greater than the external enthalpy, the ventilation fan 300 may be driven for cooling to lower the indoor enthalpy.

On the contrary, when the indoor enthalpy is greater than the external enthalpy, the blower fan 300 is stopped for heating to maintain the enthalpy difference.

The indoor enthalpy or external enthalpy calculated by the first enthalpy difference driving module 314a may mean the enthalpy of indoor or outdoor air in an unsaturated state in consideration of humidity. It can be performed according to values such as humidity and absolute humidity.

The second enthalpy difference driving module 314b may be a module that operates the blowing fan 300 due to the enthalpy difference of the indoor air or outside air and the wind speed of the outside air.

Specifically, the second enthalpy difference driving module 314b is based on the measured values of the temperature and humidity of outdoor and indoor air measured by the first sensor unit 100 and the second sensor unit 200, respectively. After determining a state in which the comfort of the resident can be increased, the blower fan 300 is driven according to the wind speed of the outside air measured by the first sensor unit 100 to allow ventilation to occur.

Accordingly, the second enthalpy difference driving module 314b is an indoor enthalpy (H _ZONE ) ≥ an outdoor air enthalpy (H _OUT ) and an indoor temperature (T _ZONE ) ≥ a set temperature (T _SET ), and the measured wind speed of the outside air is preset. When it is less than the reference value, the blowing fan 300 is driven.

Accordingly, the second enthalpy difference driving module 314b determines the necessity of ventilation and cooling of the indoor space using the enthalpy of indoor air and outside air according to the temperature and humidity difference between the indoor air and the outside air. After executing the same as the vehicle drive module 314a, even when it is determined that ventilation and cooling are necessary, when the wind speed of the outside air is lower than a preset reference value, that is, the outside air wind speed is low and the outside air flows into the interior through an open outer window. Only when not so that the blowing fan 300 can be operated.

Therefore, the second enthalpy difference driving module 314b is, even when it is determined that ventilation is necessary based on the enthalpy according to the temperature and humidity of the indoor air and the outside air, when natural ventilation is possible through the open outer window due to the large outside air velocity, the It is possible to control so that the blowing fan 300 is not operated.

Accordingly, the second enthalpy difference driving module 314b may be a module capable of significantly reducing energy than the first enthalpy difference driving module 314a.

In this case, the preset reference value is set to a minimum value of the wind speed of the outside air at which natural inflow of outside air starts to become possible to the opened outer window 10, and the second driving module 313b and the second temperature difference driving module It can be applied in the same manner as in (313b).

Accordingly, the preset reference value of the wind speed may be set to 0.5 m/s, but this reference value is not limited thereto, and various values may be applied according to the setting location, season, operation time, and user's request.

On the other hand, the second enthalpy difference driving module 314b is the control contents related to the measurement, derivation and application _{of the indoor enthalpy (H ZONE} ), the outside air enthalpy (H _OUT ), the indoor temperature (T _ZONE ), and the set temperature (T _{SET ).} Is applied in the same manner as the first enthalpy difference driving module 314a, and a detailed description of the above values will be omitted below.

In addition, the set temperature T _SET may be varied over time as described above.

The automatic operation module 315 selects a module to be set among the first driving module 311, the second driving module 312, the temperature difference driving module 313, and the enthalpy difference driving module 314 based on the measured value. It may be a module to be selectively applied.

In addition, the automatic operation module 315 _{converts the difference between the indoor temperature (T ZONE} ) and the set temperature (T _SET ) and the change of the outside air velocity into data when each module is applied, and selects from the modules based on the data-formed information. It is provided so that it can be applied.

Specifically, the automatic operation module 315 selectively applies a module showing a minimum difference according to time or season based on data-formed information on the difference between the indoor temperature and the set temperature according to the four modules.

In addition, the data conversion may be accumulated by accumulated repetitive experience or a virtual simulation is performed in consideration of weather and time, and a value for the virtual simulation result is accumulated.

For example, even if each module is applied at the same time and place, the reduction ratio of the difference between the indoor temperature and the outside temperature may vary depending on the influence of humidity or weather.

Therefore, in the present invention, the result of each module is converted into data through the automatic operation module 315 as described above, and the four modules are selected and applied based on the automatic operation module 315 so that energy can be efficiently used. The operation can be adjusted.

Meanwhile, the control unit 310 according to another embodiment of the present invention may selectively apply the modules according to a set time schedule.

Specifically, the control unit 310 selectively applies the first driving module 311, the second driving module 312, the temperature difference driving module 313, and the enthalpy difference driving module 314 as described above. It is possible to apply the optimum module according to the time, and it has the effect of reducing the cooling and heating load and increasing the comfort of indoor occupants.

For example, in a public place such as a school, it is applied so that each module can be passively ventilated due to the fact that each module does not work or the set standard is low during the time when students residing in the evening or at night time after dismissal. For this, the first driving module 311 can be applied.

The above example is according to another embodiment of the present invention for convenience of understanding, and the control unit 310 may select and apply each of the modules in various ways according to a time schedule such as time, season, and weather (rainy season). .

6 is a partially enlarged view showing a detailed configuration of a display unit of a hybrid type natural ventilation system according to an embodiment of the present invention.

The display unit 320 according to the present invention is provided to visually display information of the control unit 310 and whether the blowing fan 300 is operated as shown in FIG. 6.

Accordingly, the display unit 320 allows the measured values of temperature, humidity, and wind speed of the indoor air and outside air, the driving rate of the blowing fan 300 and the setting module of the control unit 310 to be visually displayed.

Accordingly, the display unit 320 allows the status of each module of the control unit 310 to be easily checked through the display unit 320, and thus, allows a resident to determine whether to apply each module of the control unit 310 or not. It has an effect that can induce you to make decisions easier.

In addition, the display unit 320 may be provided on one side of the blowing fan 300, and may be implemented as a separate device from the blowing fan 300.

In addition, the display unit 320 may be interlocked with the user terminal so that the same information as the display unit 320 can be displayed on a user terminal interlocked with the control unit 310 through wireless communication.

7 is a partial enlarged view showing a detailed configuration of an operation unit of a hybrid type natural ventilation system according to an embodiment of the present invention.

The operation unit 330 according to the present invention is provided so that each module of the control unit 310 can be selected and applied by a user's manual operation, as shown in FIG. 7.

Accordingly, the operation unit 330 enables the blowing fan 300 to operate the functions by manual operation according to a user's request, in addition to automatic operation under the control of the control unit 310.

Accordingly, the operation unit 330 is preferably configured to include each module selection button 331 of the control unit 310 and an on/off button 332 for driving the blowing fan.

According to the hybrid type natural ventilation system according to the present invention as described above, each module of the control unit can be selectively applied according to the season, time, environment, etc., so that energy saving is excellent and a comfortable indoor environment is created.

In addition, as the ventilation fan is determined to be driven in consideration of the comfort level of the occupant, unlike the ventilation method by simply temperature or enthalpy, the occupant's feeling of use and satisfaction are high.

In addition, by providing a blower fan on one side of the outer window or the inner window, and a control unit for controlling the drive of the blower fan, the blower fan is operated even when the wind speed of the outside air is low and air does not flow into the open window. By driving, it is possible to allow smooth inflow of outside air, and thus the efficiency of ventilation can be remarkably increased.

In addition, by simply driving the blower fan, comfortable ventilation is automatically possible, so that comfortable and efficient ventilation and cooling can be performed even in rooms where the location, size, and capacity of the window is not appropriate or the window is not installed.

In addition, the display unit induces residents to easily decide whether to apply each module of the control unit, and through the automatic operation module, each module is applied according to conditions such as temperature or time without separate manual operation, making it easier for residents. Can be used.

In addition, there is an economical effect of reducing energy use by allowing cooling by using natural ventilation through driving a blower fan without using a cooling device that consumes a lot of energy.

The terms and words used in the present specification and claims described above should not be construed as being limited to their usual or dictionary meanings, and the present inventors appropriate the concept of terms in order to describe their own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention on the basis of the principle that it can be defined.

Therefore, the configurations shown in the drawings and embodiments described in the present specification are only one of the most preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, and thus they can be replaced at the time of application. It is to be understood that there may be a variety of equivalents and variations that may exist.

1: hybrid type natural ventilation system 10: outer window
20: inner window 100: first sensor unit
200: second sensor unit 300: blowing fan
310: control unit 311: first driving module
312: second driving module 313: temperature difference driving module
313a: first temperature difference driving module 313b: second temperature difference driving module
314: enthalpy difference driving module 314a: first enthalpy difference driving module
314b: second enthalpy difference driving module 315: automatic operation module
320: display unit 330: operation unit
331: module selection button 332: on/off button

Claims (11)

A first sensor unit installed outdoors to measure temperature, humidity, and wind speed of the outside air;
A second sensor unit installed indoors to measure temperature and humidity of indoor air; And
Includes; a blower fan for forcibly flowing the indoor air,
The blowing fan,
Includes; a control unit for controlling the operation of the blowing fan based on the measured value measured by the first sensor unit and the second sensor unit,
The control unit,
Including; a temperature difference driving module for driving the blowing fan by the temperature difference between the indoor air or outside air,
The temperature difference driving module,
A first temperature difference driving module for driving the blower fan when the indoor temperature (T _ZONE ) ≥ outside air temperature (T _OUT ) and the indoor temperature (T _ZONE ) ≥ set temperature (T _{SET );} And
A second temperature differential drive that drives the blower fan when the indoor temperature (T _ZONE ) ≥ the outside temperature (T _OUT ) and the indoor temperature (T _ZONE ) ≥ the set temperature (T _SET ), and the measured wind speed of the outside air is less than a preset reference value. Includes;
The set temperature (T _SET ) is,
Hybrid type natural ventilation system, characterized in that it is changed to a set value according to time and is determined based on statistical data on the user's experience temperature.
The method of claim 1,
The control unit,
A first driving module that drives the blowing fan at all times; And
A second driving module for driving the blowing fan when the outside air velocity is less than a preset reference value;
Hybrid type natural ventilation system comprising a.
delete delete The method of claim 2,
The control unit,
Further comprising an enthalpy difference driving module for driving the blowing fan by the enthalpy difference of the indoor air or outside air,
The enthalpy difference driving module,
A first enthalpy differential driving module for driving the blower fan when the indoor enthalpy (H _ZONE ) ≥ external enthalpy (H _OUT ) and the indoor temperature (T _ZONE ) ≥ set temperature (T _{SET );}
Hybrid type natural ventilation system comprising a.
The method of claim 5,
The enthalpy difference driving module,
Indoor enthalpy (H _ZONE ) ≥ External enthalpy (H _OUT ) and indoor temperature (T _ZONE ) ≥ Set temperature (T _SET ), and the second enthalpy difference that drives the blower fan when the measured wind speed of the outside air is less than a preset reference value Driving module;
Hybrid type natural ventilation system, characterized in that it further comprises.
The method according to claim 2 or 6,
The preset reference value of the wind speed,
Hybrid type natural ventilation system, characterized in that it is set to a minimum value of the wind speed of the outside air at which natural inflow of outside air begins to become possible through an open window.
delete The method of claim 1,
The control unit,
An automatic operation module for selecting and applying a module to be set;
Hybrid type natural ventilation system, characterized in that it further comprises.
The method of claim 1,
The blowing fan,
Further comprising; a display for visually displaying the information of the control unit and whether the blowing fan is operating,
The display unit,
A hybrid type natural ventilation system, characterized in that the measured values of the temperature, humidity, and wind speed of the indoor air and outside air, a driving rate of the blowing fan, and a setting module of the control unit are visually displayed.
The method of claim 1,
The blowing fan,
An operation unit for selecting and applying the module of the control unit through a user's manual operation;
Hybrid type natural ventilation system, characterized in that it further comprises.

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