KR102062393B1 - Radiant floor heating system with corrosion proof heat sink and its control method - Google Patents

Abstract

The embodiment relates to a floor heating system through a high corrosion resistant heat conduction plate for a Korean floor heater and a control method thereof. The floor heating system according to one aspect includes: a floor heating structure; and a controller for controlling the floor heating structure. The floor heating structure comprises: floor concrete; a buffer disposed on the floor concrete; lightweight foam concrete disposed on the buffer; a mortar layer disposed on the lightweight foam concrete; a hot water pipe disposed in the mortar layer; and the heat conduction plate for a Korean floor heater disposed on the hot water pipe.

Description

Radiant floor heating system with corrosion proof heat sink and its control method

The present embodiment relates to a floor radiant heating system and a method of controlling the same through a heat resistant plate for high corrosion resistance ondol.

Floor radiant heating is a Korean unique heating technology that uses radiant heat of an ondol structure to heat interior spaces. Floor radiant heating is applied to almost all residential buildings in the Republic of Korea, and is widely adopted in foreign countries because of its superior thermal comfort.

With the development of technology, a method of supplying heat through hot water pipes by discharging hot water pipes into a floor structure is becoming popular. Hot water pipes buried in the floor are installed spaced at regular intervals, and the heat of the hot water is accumulated in the floor structure to radiant heat exchange or convection heat exchange with the floor surface to heat and heat the indoor air.

However, since the existing floor heating pipes are installed at regular intervals, the temperature difference between the bottom surface of the pipe and the bottom surface of the pipe inevitably occurs, which may cause thermal discomfort of the occupants.

In addition, the heat storage capacity is not sufficient because the structure is not sufficiently stored and only the structure around some pipes is thermally stored. As a result, when the indoor air temperature reaches the set temperature and the hot water heating is stopped, the heating duration is short and the room temperature is short. There is a problem of sudden descent.

In addition, the floor radiant heating system and the heat exchanger of the occupant are radiant heating that transfers heat through radiative heat exchange between the bottom radiant surface and the surrounding wall or the human skin, rather than the convection heat exchange that directly heats the indoor air. Since the control is made through the detection of convection heat exchange targeting only the indoor air temperature, there is a problem that does not properly reflect the thermal comfort of the occupants.

The present invention has been proposed to improve the above problems, by adding a strong corrosion resistance, high thermal conductivity onboard thermal conduction plate to the floor radiant heating structure to improve the thermal diffusion between the heating hot water pipe and the mortar, It is an object of the present invention to provide a floor radiation heating system and a control method through a high corrosion resistant underfloor heat conduction plate which can secure uniformity, shorten the time to reach the initial temperature of the room, and improve the indoor radiation environment.

Floor heating system according to the present embodiment, the floor heating structure; And a controller for controlling the floor heating structure, wherein the floor heating structure comprises: floor concrete; A buffer disposed on the top of the bottom concrete; Lightweight foam concrete disposed on top of the buffer; A mortar layer disposed on the lightweight foamed concrete; A hot water pipe disposed in the mortar layer; And a thermal conduction plate for ondol disposed on the hot water pipe.

Through this embodiment, by transferring the heat of the hot water pipe to the mortar layer or upward through the heat conduction plate for the ondol, it is possible to improve the heat storage performance of the floor heating structure, and to ensure the uniformity of the bottom surface temperature.

In addition, by improving the indoor radiant environment by shortening the time to reach the initial temperature of the room and the formation of a uniform indoor floor surface temperature, it is possible to improve the thermal comfort of the occupants and to reduce the heating energy.

In addition, by controlling the floor radiant heating system through the operating temperature (Operative Temperate, OT) representing the actual thermal comfort of the occupants, there is an advantage that can control the floor radiant heating system based on the human body temperature.

1 is a cross-sectional view of a floor heating structure according to an embodiment of the present invention.
Figure 2 shows the appearance of the floor heating system controller according to an embodiment of the present invention.
3 is a side view showing the internal configuration of the floor heating system controller of FIG.
4 is a flowchart of a method of controlling a floor heating system according to an embodiment of the present invention.
5 to 13 are drawings and experimental data for explaining the effect of the floor heating system according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical idea of the present invention is not limited to some embodiments described, but may be implemented in various forms, and within the technical idea of the present invention, one or more of the components may be selectively selected between the embodiments. Can be combined and substituted.

In addition, the terms (including technical and scientific terms) used in the embodiments of the present invention may be generally understood by those skilled in the art to which the present invention pertains, unless specifically defined and described. The terms commonly used, such as terms defined in advance, may be interpreted as meanings in consideration of the contextual meaning of the related art.

In addition, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention. In this specification, the singular may also include the plural unless specifically stated otherwise in the text, and may be combined as A, B, or C when described as “at least one (or more than one) of A and B and C”. It can include one or more of all possible combinations.

In addition, in describing the components of the embodiments of the present disclosure, terms such as first, second, A, B, (a), and (b) may be used.

These terms are only to distinguish the components from other components, and the terms are not limited to the nature, order, order, or the like of the components.

 And, if a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only connected, coupled or connected directly to the other component, but also the component It may also include the case where the 'connected', 'coupled' or 'connected' due to another component between the and other components.

 In addition, when described as being formed or disposed on the "top" or "bottom" of each component, the top (bottom) or the bottom (bottom) is not only when the two components are in direct contact with each other, It also includes the case where one or more other components are formed or arranged between two components. In addition, when expressed as "up (up) or down (down)" may include the meaning of the down direction as well as the up direction based on one component.

Floor heating system according to an embodiment of the present invention may include a floor heating structure and a controller for controlling the same.

1 is a cross-sectional view of a floor heating structure according to an embodiment of the present invention.

Referring to Figure 1, the floor heating structure 100 according to an embodiment of the present invention, floor concrete 110, buffer 120, lightweight foamed concrete 130, hot water pipe 140, heat conduction plate for ondol ( 150 and the mortar layer 160.

The bottom concrete 110 forms a base of the bottom surface. In addition, the lightweight foamed concrete 130 may be disposed on the bottom concrete 110 under the buffer 120. For this reason, the upper and lower regions may be insulated based on the lightweight foam concrete 130. In addition, the interlayer noise may be blocked in the multi-layer house by the buffer 120 and the lightweight foamed concrete 130.

The hot water pipe 140 may be disposed above the lightweight foam concrete 130. The hot water pipe 140 may be formed with a flow path such that hot water flows therein. The hot water pipes 140 may be provided in plurality and spaced apart from each other by a predetermined interval.

Mortar 160 may be disposed in an arrangement area of the hot water pipe 140. The mortar 160 may be filled in an area between the plurality of hot water pipes 140. The mortar 160 may form a layer on top of the lightweight foamed concrete 130. The hot water pipe 130 may be fixed by the mortar 160. A bottom finisher (not shown) may be laid on the top surface of the mortar 160.

An ondol thermal conductive plate 160 may be disposed in the mortar 160 region. The ondol thermal conductive plate 160 may be disposed above the hot water pipe 140. By the thermal conduction plate 160 for the ondol, the mortar 160 may be partitioned into a mortar upper region and a mortar lower region. The mortar 160 layer may be divided into upper and lower portions by the ondol thermal conductive plate 160. The hot water pipe 140 may be disposed in the lower region of the mortar. The ondol thermal conductive plate 160 may be formed in a plate shape.

The ondol thermal conductive plate 160 may be formed of a metal material. For example, the material of the thermal conductive plate 160 for the ondol may be aluminum (Al).

The mortar 160 region contains a large amount of salt and forms an environment of strongly alkaline (PH 12. 5). Therefore, the ondol thermal conductive plate 160 has an advantage of having high corrosion resistance even in such a corrosive environment.

In addition, the ondol thermal conductive plate 160 may have high thermal conductivity (236W / m · K). Because of this, since the hot water pipe 140 is disposed on the lower surface of the heat conduction plate 160 for the ondol, the heat generated from the hot water pipe 140 can be more easily conducted above the hot water pipe 140. There is an advantage.

2 is a view showing the appearance of the floor heating system controller according to an embodiment of the present invention, Figure 3 is a side view showing the internal configuration of the floor heating system controller of FIG.

2 and 3, the floor heating system controller 200 (hereinafter, a controller) according to an embodiment of the present invention may control the floor heating system 100. On the outer surface of the controller 200, a heating state display unit 210, a power button 220, a temperature measuring module 230 and a temperature controller 290 may be provided.

The heating state display unit 210 may include a display module for displaying the heating state. The heating state display unit 210 may display a desired temperature, a current room temperature, and an operation temperature to be described later.

The power button 220 is a user manipulation unit operated by a user, and may turn on / off the floor heating system 100.

The temperature controller 290 is a user manipulation unit operated by a user, and is for setting a desired room temperature, that is, desired temperature. The temperature controller 290 may be manipulated to set a temperature desired by a user by rotation.

The temperature measuring module 230 may include a radiation temperature measuring module and a temperature measuring module. The radiation temperature measuring module may include a radiation temperature measuring thermistor 250 and a radiation temperature measuring unit 260. The air temperature measuring module may include an air temperature measuring thermistor 270 and an air temperature measuring unit 280. The indoor radiation temperature and the air temperature may be sensed through the temperature measuring module 230.

The radiation temperature measuring unit 260 may be formed in a hemispherical shape. The radiation temperature measuring unit 260 may protrude forward than other areas from the front of the controller 200. The radiation temperature measuring unit 260 may be formed of a black plastic material. The inner region of the radiation temperature measuring unit 260 may be sealed from the outer region. The radiation temperature may be sensed through the thermistor 250 for measuring the radiation temperature.

The air temperature in the enclosed hemisphere is changed by radiative heat exchange with the interior wall. Accordingly, the radiation temperature measuring unit 260 may measure the air temperature in the hemisphere to sense the temperature formed by the radiation heat exchange, not the heat exchange with the indoor air temperature. In addition, the average radiation temperature (MRT), which may be referred to as the indoor radiant heat exchange temperature, may be measured when measuring the air temperature in a closed hemisphere.

The air temperature measuring module may be installed in a space open to indoor air.

In addition, the controller 200 may further include a printed circuit board 240 for electrically connecting the above-described components.

Floor heating system according to an embodiment of the present invention, the operating temperature indicating the thermal immersion temperature of the indoor occupant through the indoor air temperature measured by the air temperature measuring module and the radiation temperature measured by the radiation temperature measuring module (OT, Operative Temperature) can be calculated.

The operating temperature can be defined through the following formula (1).

(One)

= 공기온도[℃]OT: Operating temperature [℃]

= Air temperature [℃]

MRT = average radiation temperature [℃]

In addition, the average radiation temperature can be calculated through the following equation (2).

g = 0.247

(

g-

)(2) MRT-

g = 0.247

(

g-

)

g: 글로브 온도[℃]

=공기온도[℃]

g: globe temperature [° C]

= Air temperature [℃]

v: wind speed [m / s]

Here, the wind speed v is an indoor wind speed, and may be measured at 0.1 m / s, which is a condition in which only natural convection in an almost windless state exists.

g는 상기 복사 온도 측정용 써미스터(250)를 통해 측정된 온도일 수 있다. In addition, the globe temperature

g may be a temperature measured by the thermistor 250 for measuring the radiation temperature.

는 상기 공기 온도 측정용 써미스터(270)를 통해 측정된 온도일 수 있다. In addition, the air temperature

May be a temperature measured by the air temperature measuring thermistor 270.

Therefore, by measuring the average radiation temperature (MRT) through the globe temperature, the air temperature and the wind speed (2), the operating temperature can be calculated through the formula (1).

This embodiment is characterized in that the set temperature is based on the operating temperature that represents the experienced temperature of the occupants rather than the air temperature.

4 is a flowchart of a method for controlling a floor heating system according to an exemplary embodiment of the present invention.

Referring to FIG. 4, first, indoor heating is started, and an indoor temperature Ti and an indoor globe temperature Tg are sensed through a temperature measuring module in the controller 200 installed on an indoor wall (S10).

The controller 200 calculates the average radiation temperature MRT based on the measured indoor temperature Ti and the indoor globe temperature Tg, and uses the result to calculate an indoor operating temperature OTin. Can be calculated (S30). Then, the calculated indoor operating temperature OTin is compared with the indoor operating temperature OTiset set as an initial value (S40).

Here, the indoor operating temperature (OTiset) set to the initial value may be set before the calculation of the indoor operating temperature (OTin) (S20). For example, the indoor operating temperature (OTiset) may be set to 24 ℃, the indoor operating temperature lower limit (OTiset-low) is 22 ℃, the indoor wind speed (v) may be set to 0.1 m / s.

In addition, the indoor average radiation temperature (Tmrt) can be calculated through the following equation (3).

(3) Tmrt = Tg + 2.4 *

And, the indoor operating temperature (OTin) can be calculated through the above equation (1).

OTin = (Ti + Tmrt) / 2

When the calculated indoor operating temperature OTin is smaller than the indoor operating temperature OTiset, the controller in the controller 200 drives the floor heating structure 100 to start radiant heating (S50). As a result, the indoor operating temperature OTin may be increased to match the indoor operating temperature OTiset.

However, when the calculated indoor operating temperature OTin is greater than the indoor operating temperature OTiset, since separate heating is unnecessary, the controller may stop the boiler so that the floor heating structure 100 is not driven. There is (S60).

On the other hand, the control unit compares the calculated indoor operating temperature (OTin) value and the indoor set operating temperature (OTiset) value (S70). If the calculated indoor operating temperature OTin is smaller than the indoor operating temperature OTiset, but the indoor operating temperature OTin is lower than the indoor operating temperature OTiset-low, the control unit operates the boiler. Can continue. That is, the controller may continue to heat the room through the floor heating structure 100.

If the calculated indoor operating temperature OTin is smaller than an indoor operating temperature OTiset, but the indoor operating temperature OTin is higher than an indoor operating temperature OTiset-low, the controller may control the boiler. It is possible to stop the operation (S80). As a result, the room can form a temperature range set by the occupant within the range of the indoor setting operating lower limit temperature (OTiset-low) and the indoor setting operating temperature (OTiset).

In addition, when the calculated indoor operating temperature (OTin) value is smaller than the indoor operating temperature (OTiset), but the indoor operating temperature (OTin) value is higher than the indoor operating temperature (OTiset-low), the temperature measuring module 230 detects the indoor temperature Ti and the indoor globe temperature Tg. Thus, the controller may re-measure the indoor operating temperature OTin based on the detected indoor temperature Ti and indoor globe temperature Tg information. Therefore, the control unit continuously determines whether to operate the boiler by comparing the indoor operating temperature OTiset and the indoor operating lower limit temperature OTiset-low through the calculated indoor operating temperature OTin.

Hereinafter, the effect of the floor heating system according to an embodiment of the present invention will be described.

5 to 13 are drawings and experimental data for explaining the effect of the floor heating system according to an embodiment of the present invention.

5 is an experimental configuration of a floor heating system according to an embodiment of the present invention.

Referring to Figure 5, the indoor initial temperature reaching performance of the floor heating system according to an embodiment of the present invention, the uniformity of the floor surface temperature, the time to reach the set temperature from the indoor lower limit temperature to the set temperature during the heating operation, the indoor upper limit temperature The first room (Cell # 1) equipped with the floor heating structure according to the prior art (Cell # 1) and the floor heating structure 100 according to the present embodiment in order to check the fall time, the indoor comfort and energy consumption characteristics up to the set lower limit temperature ) Was equipped with a second room (Cell # 2) were each divided into a heating experiment.

That is, a heating structure including a hot water pipe is disposed on the bottom of the bottom concrete on the bottom surface of the first room (Cell # 1), and a heating structure according to the present embodiment on the bottom surface of the second room (Cell # 2). 100 is disposed.

In order to compare the floor heating system according to the present embodiment with the floor heating system according to the prior art, the laboratory partitioned a room having a size of 7.5 m * 4.6 m * 2.26 m, respectively, as an example of the interior space of a common house. In addition, the laboratory was experimented to be compared with each other, including all rooms operated only at a constant temperature, a preparation room, three rooms including the first room (Cell # 1) and the second room (Cell # 2). . The north side of the laboratory is provided with 2.0m * 1.8m windows, respectively, to face the outside air so that the room temperature change and the heating operation can be made against the outside air temperature change.

In addition, the first room (Cell # 1) and the second room (Cell # 2), respectively, for measuring the floor surface temperature, the indoor air temperature, the wall surface and the window surface temperature, floor surface, wall surface, window and floor surface A thermocouple and a temperature sensor in the space spaced from are installed.

The hot water pipe disposed in the first room (Cell # 1) and the heating heat source supply device supplied to the hot water pipe 140 disposed in the second room (Cell # 1) have a boiler having the same specification. , The heating water set temperature was set to 60 ° C., and the room set temperature was 24 ° C. to supply heat sources.

The experimental environment, including the area and heat permeability of the laboratory, is shown in FIG. 6.

7 is a table comparing the energy consumption of the floor heating system according to an embodiment of the present invention and the floor heating system according to the prior art.

Referring to FIG. 7, as a result of comparing the energy consumption for forming the same indoor air temperature under the same outside temperature condition, the first room (Cell # 1) consumed 128 kWh of power, but the second room ( In Cell # 2, the power consumption of 115 kWh smaller than that of the first room (Cell # 1) was consumed. Therefore, the floor heating system according to the embodiment of the present invention has a heating energy saving of about 11% compared to the conventional heating system under the condition that the indoor set air temperature is set to 24 ° C.

8 is a table comparing the temperature change characteristics of the floor heating system according to an embodiment of the present invention and the floor heating system according to the prior art.

Referring to FIG. 8, the time at which the indoor initial set temperature (24 ° C.) is reached is the time at which the room air temperature of each room reaches the set temperature (24 ° C.) in the outgoing mode (19 ° C.), that is, at the initial temperature by floor heating. This data is used to check the performance reached to the set temperature.

According to this, it took 145 minutes in the first room (Cell # 1), 130 minutes in the second room (Cell # 2), excellent performance of reaching the set temperature of the floor heating system according to an embodiment of the present invention You can see that.

The average temperature rise time for the room temperature to reach the upper limit from the lower limit during operation of the floor heating system was also 164 minutes in the first room (Cell # 1), but 150 minutes in the second room (Cell # 2). Thus, it can be seen that the floor heating system according to the embodiment of the present invention has an excellent performance of reaching an indoor set upper limit temperature in a situation where the floor heating system is operated.

While the floor heating system is operating and the room temperature reaches the upper limit and stops, the time taken to lower the room temperature to the set lower limit is also 453 minutes in the first room (Cell # 1), but the second room (Cell # 1). In 2) it takes 565 minutes, it can be seen that the axial heat radiation characteristics of the floor heating system according to an embodiment of the present invention is excellent.

9 is a graph comparing the indoor initial air temperature arrival time of the floor heating system according to an embodiment of the present invention and the floor heating system according to the prior art.

Referring to FIG. 9, when the indoor air temperature reaches the set air temperature (24 ° C.) from the go-out mode (19 ° C.), it took 145 minutes in the first room (Cell # 1), but the second room In (Cell # 2), it takes 130 minutes, and it is confirmed that the initial air temperature reaching performance of the floor heating system according to the embodiment of the present invention is excellent. In the floor heating system according to the embodiment of the present invention, the efficiency of reaching the set temperature has been improved by about 11% compared to the floor heating system according to the prior art.

10 is a graph comparing the average room temperature rise and fall times of the floor heating system according to the embodiment of the present invention and the floor heating system according to the prior art.

The average room temperature rise time counted the time taken from the lower limit temperature of the room to the upper limit temperature, and the average room temperature fall time counted the time taken from the room upper limit temperature to the lower limit temperature.

The average temperature rise time was 164 minutes in the first room (Cell # 1), but 150 minutes in the second room (Cell # 2). In addition, the average temperature fall time was 453 minutes in the first room (Cell # 1), but 565 minutes in the second room (Cell # 2). Thus, a floor heating system according to an embodiment of the present invention. In the case, since the heating heat from the hot water pipe 140 is rapidly diffused through the heat conduction plate 150 for the ondol, the room temperature rises quickly, and the heat is uniformly stored, so that the change in the room temperature with respect to the change in the outside temperature You can see that it takes place slowly.

11 is a view comparing the floor surface temperature distribution of the floor heating system according to an embodiment of the present invention and the floor heating system according to the prior art.

Referring to FIG. 11, it can be seen that the floor surface temperature increases as both the floor heating system according to the embodiment of the present invention and the floor heating system according to the related art are driven.

However, in the first room (Cell # 1), the deviation of the bottom surface temperature is 0.73 to 1.13, whereas in the second room (Cell # 2), the deviation of the bottom surface temperature is 0.57 to 0.77. Has a deviation. Therefore, according to the floor heating system according to an embodiment of the present invention there is an advantage that the floor surface temperature can be formed more uniformly according to the driving.

12 is a table comparing energy consumption characteristics of a floor heating system according to an embodiment of the present invention and a floor heating system according to the prior art. The result of FIG. 12 is a result of comparing the energy consumption characteristic of the floor heating system when the indoor operating temperature is controlled to 24 degrees.

Referring to FIG. 12, in the first room (Cell # 1), power consumption of 90 kWh is consumed under the same temperature condition, while in the second room (Cell # 2), power consumption of 73.4 kWh is consumed. It can be seen that the floor heating system according to the embodiment has an energy saving effect of about 19% compared to the floor heating system according to the prior art. It can be seen that the energy saving effect of the floor heating system according to the embodiment of the present invention is higher when the indoor operating temperature is controlled compared to the indoor air temperature control of FIG. 7.

13 is a table comparing the indoor heating environment of the floor heating system according to an embodiment of the present invention and the floor heating system according to the prior art.

Referring to FIG. 13, in the case of the second room (Cell # 2), the bottom surface temperature is formed more uniformly than that of the first room (Cell # 1), so that the air temperature of the second room (Cell # 2) may be increased. In spite of being lower than that of the first room (Cell # 1), the average radiation temperature (MRT) of the second room (Cell # 2) and the occupant immersion temperature (OT) are almost equal to that of the first room (Cell # 1) It can be seen that it remains the same.

In addition, the operating temperature (OT) of the second room (Cell # 2) was on average 0.05 ° C higher than the air temperature (DBT), in the case of the first room (Cell # 1) operating temperature (OT) is the air temperature On average 0.1 ° C. below (DBT). Therefore, in the case of the second room (Cell # 2), there is an advantage that the OT, which is a haptic temperature of the occupants, is kept high even under the same air temperature condition.

In the above description, it is described that all the elements constituting the embodiments of the present invention are combined or operated in one, but the present invention is not necessarily limited to the embodiments. In other words, within the scope of the present invention, all of the components may be selectively operated in combination with one or more. In addition, the terms such as 'comprise', 'comprise' or 'having' described above mean that a corresponding component may be included unless otherwise stated, and thus, other components are excluded. It should be construed that it may further include other components instead. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. Terms used generally, such as terms defined in a dictionary, should be interpreted to coincide with the contextual meaning of the related art, and shall not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims (10)

Floor heating structures; And
A controller for controlling the floor heating structure,
The floor heating structure,
Floor concrete;
A buffer disposed on the top of the bottom concrete;
Lightweight foam concrete disposed on top of the buffer;
A mortar layer disposed on the lightweight foamed concrete;
A hot water pipe disposed in the mortar layer; And
It includes a heat sink disposed on the upper portion of the hot water pipe,
The mortar layer is partitioned into an upper mortar layer and a lower mortar layer by the heat sink,
The material of the heat sink includes aluminum (Al),
The controller comprises a temperature measuring module,
The temperature measuring module includes a radiation temperature measuring module measuring an indoor radiation temperature and an air temperature measuring module measuring an indoor air temperature.
The radiation temperature measuring module includes a radiation temperature measuring unit and a radiation temperature measuring thermistor,
The radiation temperature measuring unit is formed in a hemispherical shape,
The controller drives the floor heating structure when the indoor operating temperature OT is low.
The controller stops the floor heating structure when the indoor operating temperature (OT) is higher than the indoor set operating temperature,
The indoor operating temperature (OT) is,
Floor heating system with OT = (θ + mean radiation temperature (MRT)) / 2 where θ = air temperature [° C.].
delete delete delete The method of claim 1,
The radiation temperature measuring part is formed of a black plastic material, and is formed to protrude from the outer surface of the controller.
delete The method of claim 1,
The average radiation temperature (MRT) is,
MRT- Tg = 0.247

(Tg-Ti) (where Tg: globe temperature [° C.], Ti = air temperature [° C.], v: wind speed [m / s]).
(a) the temperature measuring module detecting the indoor temperature Ti and the indoor globe temperature Tg;
(b) calculating an indoor operating temperature OTin through the indoor temperature Ti and the indoor globe temperature Tg; And
(c) comparing the indoor operating temperature OTin with a set indoor operating temperature OTiset,
If the calculated indoor operating temperature (OTin) is less than the indoor operating temperature (OTiset), the controller drives the floor heating structure to perform radiant heating,
However, if the calculated indoor operating temperature OTin is greater than the indoor operating temperature OTiset, the controller stops driving the floor heating structure,
The indoor operating temperature (OTin),
OTin = (Ti + average radiation temperature (MRT)) / 2
The average radiation temperature (MRT) is,
MRT- Tg = 0.247√v (Tg-Ti), where v: wind speed [m / s].
The method of claim 8,
And controlling the indoor operating temperature (OTin) and the indoor operating lower limit temperature (OTiset-low) after the step (C).
The method of claim 9,
When the indoor operating temperature OTin is lower than an indoor setting operating lower limit temperature (OTiset-low), the controller drives the floor heating structure to perform radiant heating.
And when the indoor operating temperature (OTin) is higher than an indoor setting operating lower limit temperature (OTiset-low), the controller stops driving of the floor heating structure.

Images