JP4309604B2 - Air conditioning control device for air conditioning equipment - Google Patents

Description

上記のうち、快適な範囲は‐０．５〜＋０．５である。
【００２５】
また上記の温熱感覚に影響を与える６つの変数のうち、
作業強度を表す活動状態は通常、代謝量ｍｅｔで、着衣状態はｃｌｏの単位を用いる。
【００２６】
次にｍｅｔ及びｃｌｏについて述べる。
【００２７】
ｍｅｔ（メット）
代謝量を表す単位であり、熱的に快適な状態における安静時代謝を基準とする。例えば事務所ビルでの事務作業は１．２ｍｅｔである。
【００２８】
【数４】

ｃｌｏ（クロ）
衣服の熱絶縁性を表す単位で、１ｃｌｏとは気温２１℃、相対湿度５０％、気流５ｃｍ／ｓ以下の室内で、体表面からの放射量が１ｍｅｔの代謝と平衡するような着衣状態での値で、通常の熱抵抗値に換算すると
【数５】

なお、冬季の建物内での着衣量は通常１．０ｃｌｏ、夏季の着衣量は通常０．５ｃｌｏである。
【００２９】
ＰＭＶについては、下記の参考文献に詳述されている。
【００３０】
【数６】

次に制御量設定値演算手段３について述べる。
【００３１】
制御量設定値演算手段３では、快適性指標が居住者の快適範囲に入ってかつ、省エネを犠牲にしない制御量（温度、湿度等の）設定値を求める。
【００３２】
快適性範囲内とは、省エネを考慮して冷房時は室温が高めになるように定めた範囲をいい、ＰＭＶ目標値として室温の変動幅を考慮して（−０．５＜ＰＭＶ＜＋０．５）の上限近く、例えば＋０．３を設定する。
【００３３】
反対に暖房時には室温が低めになるように、快適範囲の下限近くの−０．３をＰＭＶ目標値として設定する。
【００３４】
制御量設定値演算手段３において、図２に示すようなファジィ演算を用いる。
【００３５】
すなわち図２において、快適性指標演算手段２で求められたＰＭＶから、ＰＭＶ目標値を引いた偏差Ｅｐがファジィ演算部６に入力される。さらにこの偏差Ｅｐが変化量演算部７に入力され、その変化量ΔＥｐが演算される。ΔＥｐもファジィ演算部６に入力され、ファジィ演算部６は、ＥｐとΔＥｐから快適性指標ＰＭＶがＰＭＶ目標値となるよう制御量設定値の変化量を求める。
【００３６】
制御量設定値演算手段３はファジィ演算部６を有しているので、同時に複数の制御量設定値を求めることが可能である。
【００３７】
図３にファジィ制御ルールテーブルの例を示す。
【００３８】
図３において、ＮＢ、ＮＭ、ＮＳ、ＺＯ、ＰＳ、ＰＭ、ＰＢの意味は次の通りである。
【００３９】
ＮＢ：Ｎｅｇａｔｉｖｅ Ｂｉｇ ；負で大きい
ＮＭ：Ｎｅｇａｔｉｖｅ Ｍｅｄｉｕｍ ；負で中くらい
ＮＳ：Ｎｅｇａｔｉｖｅ Ｓｍａｌｌ ；負で小さい
ＺＯ：Ｚｅｒｏ
ＰＳ：Ｐｏｓｉｔｉｖｅ Ｓｍａｌｌ ；正で小さい
ＰＭ：Ｐｏｓｉｔｉｖｅ Ｍｅｄｉｕｍ ；正で中くらい
ＰＢ：Ｐｏｓｉｔｉｖｅ Ｂｉｇ ；正で大きい
図３に示すようなファジィ制御ルールテーブルに従って求められた制御量設定値の変化量は加算部６ａ、６ｂに入力され、前回の制御量設定値と加算されて今回の制御量設定値が求められる。求められた各制御量設定値は制御量設定値補正手段４に入力される。
【００４０】
制御量設定値補正手段４は上記の制御量設定値、環境測定器５からの情報である室内温度 、相対湿度と、ショーケース温度計１１ａからの情報を用いて、補正制御量設定値を求める。
【００４１】
制御量設定値補正手段４において、補正制御量設定値は以下のように求める。
【００４２】
室温Ｔ_Ｒ［℃］、室内相対湿度ψの空気の露点温度Ｔ”［℃］及び室内表面温度Ｔｓ［℃］、とするとき、ショーケース表面に結露が生ずるか否かはＴｓとＴ”とを比較することで判定できる。すなわち、Ｔ”＞Ｔｓのとき結露する。
【００４３】
室内表面温度Ｔｓ［℃］は、室内表面熱伝達率α［Ｗ／ｍ^２・Ｋ］（ｋｃａｌ／ｍ^２・ｈ・℃）、壁体（ガラス）の熱貫流率Ｋ［Ｗ／ｍ^２・Ｋ］ （ｋｃａｌ／ｍ^２・ｈ・℃）、室内空気温Ｔ_Ｒ［℃］、ショーケース内温度Ｔａ［℃］を用いて
【数７】

よって求めることができる。なお、通常Ｋ／αの値は、０＜Ｋ／α＜１である。
【００４４】
結露するＴ”＞Ｔｓの条件は
【数８】

制御量設定演算手段３で求められた、室温設定値をＴｓｖとすると空調制御後、室内空気温Ｔ_Ｒは、Ｔｓｖになるので、上記条件は
【数９】

すなわち、下記の条件が成立する場合
【数１０】

ショーケースのガラスが結露するので、Ｔｓｖの値を下記の値に置き換える。
【００４５】
【数１１】

露点温度Ｔ”は室温Ｔ_Ｒ、室内相対湿度ψより湿り空気線図の作成に用いられる演算式によって求められる。
【００４６】
具体的、演算式を以下に示す。
【００４７】
【数１２】

制御量設定値補正手段４は、上記で求めた制御量（温度、湿度等の）設定値を用いてＤＤＣ（Direct Digital Controller）１３により、空調機２０に付随する蒸気バルブ２１と、温水バルブ２２と、冷却バルブ２３とを制御した場合にショーケース１１のガラスが結露するか否かをショーケース温度計１１ａからの情報と、環境測定器５からの情報により前記方法に基づいて判定し、結露する時は上記設定値を結露しないように制御量設定値を補正して補正制御量設定値を定める。
【００４８】
次にこのような構成からなる本実施の形態の作用について説明する。
【００４９】
まず、環境測定器５を構成する温度計５ａ、平均輻射温度計５ｂ、気流速度計５ｃ、湿度計５ｄから室内温度、平均輻射温度、気流速度、及び相対湿度に関する情報と、着衣量及び活動量に関する情報が快適性指標演算手段２に入力される。
【００５０】
快適性指標演算手段２では、ＰＭＶを用いた快適性指標演算により快適性指標が算出される。
【００５１】
次に上記の快適性指標と快適性指標目標値が制御量設定値演算手段３に入力される。
【００５２】
制御量設定値演算手段３では、上記の快適性指標と快適性指標目標値を用いて制御量設定値、例えば温度、湿度に関する設定値ＳＶ_１，ＳＶ_２が算出される。
【００５３】
次に制御量設定値補正手段４では、上記の制御量設定値と、環境測定器５からの情報である室内温度、及び相対湿度と、ショーケース内１１のショーケース温度計１１ａからの情報を用いて補正制御量（温度、湿度等）設定値ＳＶ_１´，ＳＶ_２´が算出される。制御量設定値補正手段４で算出された設定値はＤＤＣ（Direct Digital Controller）１３に送信される。ＤＤＣ１３は、蒸気バルブ２１、温水バルブ２２、冷水バルブ２３を制御することにより空調機２０から送出される空気温度，湿度を制御する。空調機２０によって冷却または加熱，加湿された空気は、空気配管２４を介して、室内１０に供給され、室内１０からの空気は空気配管２５を介して空調機２０に戻される。
【００５４】
（他の実施例）
なお、本発明は上記実施の形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変形して実施できるものである。
【００５５】
例えば快適性指標演算手段２においてＰＭＶ以外の手法を用いて快適指標を求めても良い。また、快適性指標演算手段２は、ニューロなどの手法を用いた学習機能を有していても良い。
【００５６】
また、制御量設定値補正手段４において露点温度Ｔ”を室温Ｔ_Ｒ、室内相対湿度ψより求める場合、数値テーブルを用いた折れ線近似で露点温度Ｔ”を求めても良い。
【００５７】
【発明の効果】
以上のように本発明によれば、コンビニやスーパーなどの店舗等の室内において、居住者の快適性を保持して、かつ省エネを実現すると共に、冷蔵庫として機能するショーケースのガラスが曇（露点）らないような、室内の室温と室内湿度を提供できる。
【図面の簡単な説明】
【図１】本発明による空調設備の空調制御の一実施例を示す全体構成図
【図２】制御量設定値演算の実施例を示す図
【図３】ファジィ制御ルールテーブルの例を示す図
【符号の説明】
１ 空調設備の空調制御装置
２ 快適性指標演算手段
３ 制御量設定値演算手段
４ 制御量設定値補正手段
５ 環境測定器
５ａ 温度計
５ｂ 平均輻射温度計
５ｃ 気流速度計
５ｄ 湿度計
６ ファジィ演算部
６ａ 加算部
６ｂ 加算部
７ 変化量演算部
１０ 室内
１１ ショーケース
１１ａ ショーケース温度計
１２ ＤＤＣ
１３ ＤＤＣ
２０ 空調機
２１ 蒸気バルブ
２２ 温水バルブ
２３ 冷水バルブ
２４ 空気配管
２５ 空気配管[0001]
[Field of the Invention]
The present invention relates to an air-conditioning control apparatus for air-conditioning equipment that can maintain the comfort of residents and realize energy saving in store buildings such as convenience stores and supermarkets.
[0002]
[Prior art]
The original purpose of air conditioning control of air conditioning equipment is to ensure an appropriate indoor thermal environment. It is desirable that such indoor thermal environment can be realized with as little energy consumption as possible. However, since convenience stores, supermarkets, and the like have a showcase that is a refrigerator in the room, there is a risk that the glass in the showcase may condense depending on the condition of the air conditioning control in the room.
[0003]
[Problems to be solved by the invention]
By the way, the current situation is that air-conditioning control of air-conditioning equipment that satisfies both comfort and energy saving at the same time and considers the prevention of glass condensation in the showcase has not yet been performed.
[0004]
The present invention has been made in consideration of such points, and in store buildings such as convenience stores and supermarkets, the room temperature and the room humidity are set so that the glass of the showcase that is installed indoors as a refrigerator does not condense. An object of the present invention is to provide an air conditioning control device for air conditioning equipment that can be optimally controlled in consideration of comfort and energy saving.
[0005]
[Means for Solving the Problems]
The present invention relates to an environment measuring device for measuring at least room temperature and room relative humidity, and an air conditioning control device for indoor air conditioning equipment in which a showcase having a function as a refrigerator and a showcase thermometer is installed. Based on the comfort index calculation means that calculates the comfort index by inputting the information from the measuring instrument and the information on the amount of clothes and the amount of activity, and the comfort index calculated by the comfort index calculation means, energy saving and indoor comfort Control amount set value calculating means for calculating a control amount set value including the room temperature set value of the air conditioning equipment that satisfies the performance at the same time , a control amount set value including the room temperature set value calculated by the control amount set value calculating means , Based on the information from the showcase thermometer, the showcase outer surface temperature Ts [° C.] when the room temperature becomes the set room temperature is calculated, and the room temperature from the environment measuring instrument is calculated. And based on the information including the indoor relative humidity, "calculates, Ts and T" condensation temperature T of the air "when it is, Ts is T" is Ts <T control amount including room temperature set value so that a higher An air conditioning control apparatus for an air conditioning facility, comprising: a control amount set value correcting means for correcting a set value to obtain a corrected control amount set value.
[0006]
According to the present invention, the room temperature and the room humidity in the room can be optimally controlled in consideration of comfort and energy saving so that the glass of the showcase functioning as a refrigerator installed in the room is not condensed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0008]
1 to 3 are diagrams showing an embodiment of an air conditioning control device for an air conditioning facility according to the present invention.
[0009]
As shown in FIG. 1, a showcase 11 having a showcase thermometer 11a and functioning as a refrigerator is installed in a room 10 such as a store. In the room 10, a thermometer 5a, an average radiation thermometer 5b, an airflow velocity meter 5c, and a hygrometer 5d are installed. These thermometer 5a, average radiation thermometer 5b, airflow velocity meter 5c, and hygrometer 5d. Thus, the environment measuring instrument 5 is configured.
[0010]
An air conditioner 20 is connected to the room 10 via air pipes 24 and 25, air is sent from the air conditioner 20 to the room 10 via the air pipe 24, and air in the room 10 is sent via the air pipe 25. Returned to the air conditioner 20.
[0011]
Further, the air passing through the air conditioner 20 is humidified, heated and cooled by the action of the steam valve, the hot water valve and the cold water valve.
[0012]
The air-conditioning control apparatus according to the present invention includes information from the environment measuring instrument 5 including a thermometer 5a, an average radiation thermometer 5b, an airflow velocity meter 5c, and a hygrometer 5d, and information from the showcase thermometer 11a. Based on this, the steam valve 21, the hot water valve 22, and the cooling valve 23 associated with the air conditioner 20 are appropriately controlled.
[0013]
In FIG. 1, an air conditioning control device 1 is connected to an environment measuring instrument 5 via a DDC (Direct Digital Controller) 12, and a steam valve 21, a hot water valve 22, and a cooling valve 23 are controlled via a DDC 13. .
[0014]
Next, the air conditioning control device 1 according to the present invention will be described.
[0015]
The air-conditioning control device 1 receives the information from the environment measuring device 5 and the information about the amount of clothes and the amount of activity, and calculates the comfort index, and the comfort index calculated by the comfort index calculator 2 Control amount setting value calculating means 3 for calculating a control amount setting value of the air conditioner 20 that simultaneously satisfies energy saving and comfort of the room 10 based on the index is provided. Further, based on the control amount set value calculated by the control amount set value calculating means 3, the information of the environment measuring instrument 5, and the information from the showcase thermometer 11a, the control amount set value correcting means 4 causes the air conditioner 20 to It is determined whether or not the showcase 11 installed in the room 10 is to be condensed, and when it is determined that condensation is to occur, the control amount setting value is corrected to obtain a corrected control amount setting value.
[0016]
Next, each component will be further described.
[0017]
First, the comfort index calculation means 2 will be described.
[0018]
In consideration of human comfort, it is important to consider the human thermal sensation of heat and cold when ensuring an appropriate indoor thermal environment. The following variables affect this: (1) Indoor temperature (2) Average radiation temperature (3) Airflow velocity (4) Relative humidity (5) Activity state (internal heating value of human body) (6) Clothes When these heat balances are established by the total of the amount of heat released, the amount of heat evaporated from the person, the amount of heat released by breathing, and the amount of heat stored, the human body is thermally neutral and is in a comfortable state that is neither hot nor cold. Conversely, when the thermal balance is lost, the human body feels hot and cold.
[0019]
As described above, the environment measuring instrument 5 includes the thermometer 5a, the average radiation thermometer 5b, the airflow velocity meter 5c, and the hygrometer 5d. The environment measuring device 5 measures the indoor temperature, the average radiation temperature, the airflow velocity, and the relative humidity. These pieces of information are output to the comfort index calculation means 2.
In addition, the information regarding the amount of clothes and the amount of activity can also be set in the comfort index calculation means 2 as a fixed value in advance. Typical values will be described later.
[0020]
The comfort index calculating means 2 obtains a comfort index by using the information from the environment measuring device 5 and information on the amount of clothes and the amount of activity.
[0021]
(2) Instead of installing the average radiation thermometer 5b that can read the average radiation temperature, the average radiation temperature may be estimated and calculated using room temperature, outside air temperature, or the like. (3) When the airflow velocity is small near the occupant, the influence on the comfort index can be ignored, so this may be omitted from the variable.
[0022]
In addition, the comfort index calculating means 2 can calculate the comfort index using PMV.
[0023]
Here, PMV (Predicted Mean Vote) is the derivation of the comfort equation by Prof. Fanger of the Danish Institute of Technology in 1967, and using this as a starting point, the heat load of the human body and the thermal sensation of the human body, This is a result of statistical analysis based on questionnaires of a large number of Western subjects. In recent years, this has been taken up by the ISO standard, and has recently been frequently used as a comfort index for air conditioning control. PMV, which is an index of thermal sensation, is expressed as a numerical value based on the following seven-level evaluation scale.
[0024]
[Equation 3]

Among the above, the comfortable range is -0.5 to +0.5.
[0025]
Of the six variables that affect the above thermal sensation,
The activity state indicating the work intensity is normally a metabolic amount met, and the clothing state uses the unit of clo.
[0026]
Next, met and clo will be described.
[0027]
met
A unit of metabolic rate, based on resting metabolism in a thermally comfortable state. For example, office work in an office building is 1.2 met.
[0028]
[Expression 4]

clo (black)
A unit that expresses the thermal insulation of clothes. 1 clo is a room with an air temperature of 21 ° C, a relative humidity of 50%, and an airflow of 5 cm / s or less, and the amount of radiation from the body surface is balanced with 1 met metabolism. When converted to a normal thermal resistance value,

The amount of clothes in a building in winter is usually 1.0 clo, and the amount of clothes in summer is usually 0.5 clo.
[0029]
PMV is described in detail in the following references.
[0030]
[Formula 6]

Next, the control amount set value calculation means 3 will be described.
[0031]
The control amount set value calculation means 3 obtains a set amount of control amount (temperature, humidity, etc.) within which the comfort index falls within the occupant's comfort range and does not sacrifice energy saving.
[0032]
The comfort range refers to a range determined so that the room temperature is raised during cooling in consideration of energy saving, and the fluctuation range of the room temperature is considered as a PMV target value (−0.5 <PMV <+0. For example, +0.3 is set near the upper limit of 5).
[0033]
On the contrary, -0.3 near the lower limit of the comfortable range is set as the PMV target value so that the room temperature becomes lower during heating.
[0034]
The control amount set value calculation means 3 uses fuzzy calculation as shown in FIG.
[0035]
That is, in FIG. 2, the deviation Ep obtained by subtracting the PMV target value from the PMV obtained by the comfort index calculation means 2 is input to the fuzzy calculation unit 6. Further, the deviation Ep is input to the change amount calculation unit 7, and the change amount ΔEp is calculated. ΔEp is also input to the fuzzy computing unit 6, and the fuzzy computing unit 6 obtains the amount of change in the control amount set value from Ep and ΔEp so that the comfort index PMV becomes the PMV target value.
[0036]
Since the control amount set value calculation means 3 has the fuzzy calculation unit 6, it is possible to obtain a plurality of control amount set values simultaneously.
[0037]
FIG. 3 shows an example of a fuzzy control rule table.
[0038]
In FIG. 3, the meanings of NB, NM, NS, ZO, PS, PM, and PB are as follows.
[0039]
NB: Negative Big; Negative and large NM: Negative Medium; Negative and medium NS: Negative Small; Negative and small ZO: Zero
PS: Positive Small; Positive and small PM: Positive Medium; Positive and medium PB: Positive Big; Positive and large The amount of change in the control amount set value obtained according to the fuzzy control rule table as shown in FIG. 6b, and is added to the previous control amount set value to obtain the current control amount set value. The obtained control amount set values are input to the control amount set value correcting means 4.
[0040]
The control amount set value correction means 4 obtains a corrected control amount set value by using the control amount set value, the room temperature, the relative humidity, which is information from the environment measuring instrument 5, and the information from the showcase thermometer 11a. .
[0041]
In the control amount set value correction means 4, the correction control amount set value is obtained as follows.
[0042]
When room temperature T _R [° C.], air dew point temperature T ″ [° C.] and indoor surface temperature Ts [° C.] of indoor relative humidity ψ, whether or not condensation occurs on the showcase surface is expressed as Ts and T ″. Can be determined by comparing. That is, condensation occurs when T ″> Ts.
[0043]
The indoor surface temperature Ts [° C.] includes the indoor surface heat transfer coefficient α [W / m ² · K] (kcal / m ² · h · ° C.) and the wall (glass) thermal transmissivity K [W / m ² · K] (kcal / m ² · h · ° C.), indoor air temperature T _R [° C.], showcase temperature Ta [° C.]

Therefore, it can be obtained. In general, the value of K / α is 0 <K / α <1.
[0044]
The condition of dew condensation T ”> Ts is:

Obtained by the control amount setting operation means 3, after the air-conditioning control When Tsv room temperature setting value, the indoor air temperature T _R, since the Tsv, the conditions Equation 9]

In other words, when the following condition is satisfied:

Since the glass of the showcase is condensed, the value of Tsv is replaced with the following value.
[0045]
[Expression 11]

The dew point temperature T ″ is obtained from the room temperature T _R and the indoor relative humidity ψ by an arithmetic expression used to create a wet air diagram.
[0046]
Specifically, an arithmetic expression is shown below.
[0047]
[Expression 12]

The control amount set value correction means 4 uses a control value (temperature, humidity, etc.) set value obtained above to set a steam valve 21 associated with the air conditioner 20 and a hot water valve 22 using a DDC (Direct Digital Controller) 13. Whether or not the glass of the showcase 11 is condensed when the cooling valve 23 is controlled is determined based on the above method based on the information from the showcase thermometer 11a and the information from the environment measuring instrument 5, When this is done, the corrected control amount set value is determined by correcting the control amount set value so that the set value is not condensed.
[0048]
Next, the operation of the present embodiment having such a configuration will be described.
[0049]
First, from the thermometer 5a, the average radiation thermometer 5b, the airflow velocity meter 5c, and the hygrometer 5d constituting the environment measuring device 5, information on the room temperature, the average radiation temperature, the airflow velocity, and the relative humidity, the amount of clothes, and the amount of activity Is input to the comfort index calculation means 2.
[0050]
In the comfort index calculating means 2, the comfort index is calculated by the comfort index calculation using PMV.
[0051]
Next, the comfort index and the comfort index target value are input to the control amount set value calculation means 3.
[0052]
The control amount set value calculation means 3 calculates control amount set values, for example, set values SV ₁ and SV ₂ relating to temperature and humidity, using the comfort index and the comfort index target value.
[0053]
Next, the control amount set value correcting means 4 obtains the control amount set value, the room temperature and the relative humidity, which are information from the environment measuring instrument 5, and the information from the show case thermometer 11a in the show case 11. The correction control amount (temperature, humidity, etc.) set values SV ₁ ′, SV ₂ ′ are calculated by using them. The set value calculated by the control amount set value correcting means 4 is transmitted to a DDC (Direct Digital Controller) 13. The DDC 13 controls the air temperature and humidity sent from the air conditioner 20 by controlling the steam valve 21, the hot water valve 22, and the cold water valve 23. The air cooled, heated, or humidified by the air conditioner 20 is supplied to the room 10 via the air pipe 24, and the air from the room 10 is returned to the air conditioner 20 via the air pipe 25.
[0054]
(Other examples)
In addition, this invention is not limited to the said embodiment, It can implement variously in the range which does not deviate from the summary.
[0055]
For example, the comfort index calculation means 2 may obtain the comfort index using a method other than PMV. In addition, the comfort index calculation means 2 may have a learning function using a technique such as neuro.
[0056]
Further, when the control amount set value correction means 4 obtains the dew point temperature T ″ from the room temperature T _R and the indoor relative humidity ψ, the dew point temperature T ″ may be obtained by polygonal line approximation using a numerical table.
[0057]
【The invention's effect】
As described above, according to the present invention, in the room of a store such as a convenience store or a supermarket, the glass of the showcase that functions as a refrigerator is kept cloudy (dew point) while maintaining the comfort of the resident and realizing energy saving. The room temperature and the room humidity can be provided.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram showing an example of air conditioning control of an air conditioning facility according to the present invention. FIG. 2 is a diagram showing an example of control amount set value calculation. FIG. 3 is a diagram showing an example of a fuzzy control rule table. Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air-conditioning control apparatus of air-conditioning equipment 2 Comfort index calculation means 3 Control amount set value calculation means 4 Control amount set value correction means 5 Environment measuring instrument 5a Thermometer 5b Average radiation thermometer 5c Airflow velocity meter 5d Hygrometer 6 Fuzzy calculation part 6a Adder 6b Adder 7 Change amount calculator 10 Indoor 11 Showcase 11a Showcase thermometer 12 DDC
13 DDC
20 Air Conditioner 21 Steam Valve 22 Hot Water Valve 23 Cold Water Valve 24 Air Piping 25 Air Piping

Claims (7)

In an air conditioning control device for indoor air conditioning equipment in which an environment measuring instrument that measures at least room temperature and indoor relative humidity, and a showcase having a function as a refrigerator and a showcase thermometer are installed inside,
Comfort index calculation means for calculating comfort index by inputting information from the environment measuring device and information on the amount of clothes and the amount of activity;
Based on the comfort index calculated by the comfort index calculation means, the control amount set value calculation means for calculating the control amount set value including the room temperature set value of the air conditioning equipment that simultaneously satisfies energy saving and indoor comfort;
Based on the control amount set value including the room temperature set value calculated by the control amount set value calculating means and the information from the showcase thermometer, the showcase outer surface temperature Ts when the indoor temperature becomes the set indoor temperature. Based on the information including the room temperature and the room relative humidity from the environmental measuring device, the dew condensation temperature T ″ of the air is calculated, and when Ts and T ″ are Ts <T ″, Ts is T ″. Control amount set value correction means for correcting the control amount set value including the room temperature set value so as to obtain the corrected control amount set value,
An air conditioning control device for air conditioning equipment, comprising:   The air conditioning control device for air conditioning equipment according to claim 1, wherein the comfort index calculating means calculates the comfort index using PMV.   2. The air conditioning equipment air conditioning system according to claim 1, wherein the control amount set value computing means computes a control amount set value of the air conditioning equipment that simultaneously satisfies energy saving and indoor comfort using fuzzy computation. Control device.   2. The air conditioning control device for an air conditioning facility according to claim 1, wherein the control amount set value calculating means obtains a room temperature set value that simultaneously satisfies energy saving and indoor comfort.   The air conditioning control apparatus for an air conditioning facility according to claim 1, wherein the control amount set value calculation means obtains a room temperature set value and an indoor humidity set value that simultaneously satisfy energy saving and indoor comfort. The control amount set value correction means includes an indoor surface heat transfer coefficient α [W / m 2 · K], a heat transmissivity K [W / m 2 · K] of the wall (glass), a temperature in the showcase Ta [° C.], When the dew point temperature of the room air is T ″ [° C.], the room temperature set value Tsv obtained by the control amount set value calculating means is

At that time, it is determined that the glass of the showcase has condensed, and the room temperature set value Tsv is set to

The air conditioning control device for air conditioning equipment according to claim 1, wherein the correction control amount set value is obtained by correcting as follows. The control amount set value correction means obtains the dew point temperature T ″ [° C.] from the room temperature T _R [° C.] and the indoor relative humidity ψ based on an arithmetic expression used to create a wet air diagram. Item 7. An air conditioning control device for an air conditioning facility according to Item 6.

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