JP2009058176A - Operation method for air conditioner - Google Patents
Operation method for air conditioner Download PDFInfo
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- JP2009058176A JP2009058176A JP2007225566A JP2007225566A JP2009058176A JP 2009058176 A JP2009058176 A JP 2009058176A JP 2007225566 A JP2007225566 A JP 2007225566A JP 2007225566 A JP2007225566 A JP 2007225566A JP 2009058176 A JP2009058176 A JP 2009058176A
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Abstract
Description
本発明は、建物内の空調（冷房、暖房等）を行う空調機の運転方法に関し、さらに詳述すると、空調機の設定温度の管理を行って省エネルギーを図る空調機の運転方法に関する。 The present invention relates to a method for operating an air conditioner that performs air conditioning (cooling, heating, etc.) in a building, and more specifically, relates to a method for operating an air conditioner that manages the set temperature of the air conditioner to save energy.
従来、建物内の空調を行う空調機の設定温度（室内温度設定値）は、夏期および冬期の２種類に分類されて設定されているのが一般的であり、例えば夏期は２８℃、冬期は１８℃に設定されている（例えば、非特許文献１参照）。 Conventionally, the set temperature (room temperature set value) of an air conditioner that performs air conditioning in a building is generally classified and set into two types, summer and winter, for example, 28 ° C in summer and in winter It is set to 18 ° C. (see, for example, Non-Patent Document 1).
しかし、空調機の設定温度を夏期および冬期の２種類に分類して設定する方法では、空調機の運転日の実際の気候特性に適応した空調を行って省エネルギーを図ることは難しかった。 However, in the method of setting the temperature setting of the air conditioner by classifying it into two types, summer and winter, it is difficult to save energy by performing air conditioning adapted to the actual climate characteristics of the air conditioner operating day.
本発明は、前述した事情に鑑みてなされたもので、空調機の運転日の実際の気候特性に応じて空調機の設定温度をきめ細かく設定することにより省エネルギーを図ることが可能な空調機の運転方法を提供することを目的とする。 The present invention has been made in view of the above-described circumstances, and the operation of an air conditioner capable of saving energy by finely setting the set temperature of the air conditioner according to the actual climate characteristics of the air conditioner operation day. It aims to provide a method.
本発明は、前記目的を達成するため、クラスタ分析法を用いて１年間の各日を外気エンタルピの類似性が強い日同士をまとめた複数のグループに類型化し、前記各グループ毎に空調機の設定温度を設定することを特徴とする空調機の運転方法を提供する。 In order to achieve the above object, the present invention categorizes each day of the year into a plurality of groups in which the days of strong outdoor enthalpy similarity are grouped using a cluster analysis method. An operating method of an air conditioner characterized by setting a preset temperature.
本発明では、１年間の各日の気温および湿度から各日の外気エンタルピを算出し、クラスタ分析法を用いて１年間の各日を外気エンタルピの類似性が強い日同士をまとめた複数のグループに類型化し、前記各グループ毎に空調機の設定温度を設定するので、空調機の運転日の実際の気候特性（気温および湿度）に応じて空調機の設定温度をきめ細かく設定することにより、省エネルギーを図ることができる。 In the present invention, the outdoor enthalpy of each day is calculated from the temperature and humidity of each day of the year, and a plurality of groups in which the days of the year are strongly similar to each other by using the cluster analysis method. The air temperature setting temperature is set for each group as described above, so energy saving can be achieved by finely setting the air temperature setting temperature according to the actual climate characteristics (air temperature and humidity) of the air conditioner operation day. Can be achieved.
本発明によれば、空調機の運転日の実際の気候特性に応じて空調機の設定温度をきめ細かく設定することにより省エネルギーを図ることができる。 ADVANTAGE OF THE INVENTION According to this invention, energy saving can be aimed at by setting the preset temperature of an air conditioning machine finely according to the actual climate characteristic of the operating day of an air conditioning machine.
以下、本発明をさらに詳しく説明する。本発明において、外気エンタルピは、下記式（ａ）により算出することができる。１年間の外気エンタルピの推移の一例として、２００６年１月１日から２００６年１２月３１日までの外気エンタルピ（８時から１８時の時間帯における平均値）の推移を図１に示す。
ｈ＝ｃｐａｔ＋ｘ（ｒ０＋ｃｐｗｔ） …（ａ）
ｔ ：外気温度（℃）
ｘ ：外気の絶対湿度（ｋｇ／ｋｇ（ＤＡ））
ｈ ：外気エンタルピ（比エンタルピ）（ｋＪ／ｋｇ（ＤＡ））
ｃｐａ：乾き空気の定圧比熱（１．００６ｋＪ／ｋｇ（ＤＡ）Ｋ）
ｃｐｗ：水蒸気の定圧比熱（１．８０５ｋＪ／ｋｇ（ＤＡ）Ｋ）
ｒ０：０℃における水の蒸発潜熱（２５０１．６ｋＪ／ｋｇ）
Hereinafter, the present invention will be described in more detail. In the present invention, the outside air enthalpy can be calculated by the following formula (a). As an example of the transition of the outside air enthalpy for one year, the transition of the outside air enthalpy (average value in the time zone from 8:00 to 18:00) from January 1, 2006 to December 31, 2006 is shown in FIG.
h = c pat + x (r 0 + c pw t) (a)
t: outside air temperature (° C.)
x: Absolute humidity of outside air (kg / kg (DA))
h: Open air enthalpy (specific enthalpy) (kJ / kg (DA))
c pa : constant pressure specific heat of dry air (1.006 kJ / kg (DA) K)
c pw : constant pressure specific heat of water vapor (1.805 kJ / kg (DA) K)
r 0 : latent heat of vaporization of water at 0 ° C. (2501.6 kJ / kg)
本発明においては、クラスタ分析法を用いて１年間の各日を外気エンタルピの類似性が強い日同士をまとめた複数のグループに類型化する。この場合、上記クラスタ分析法としては、一般に使用されている方法を用いることができる。また、グループに類型化するに当たって使用する外気エンタルピの値としては、各日の特定の時刻における外気エンタルピの値、各日の特定の時間帯（例えば８時から１８時）における外気エンタルピの平均値、あるいは各日の１日の外気エンタルピの平均値などを使用することができる。上記グループの数に限定はないが、９〜１５個とすることが適当である。 In the present invention, using the cluster analysis method, each day of the year is categorized into a plurality of groups in which the days with strong similarity of the outside air enthalpy are collected. In this case, a generally used method can be used as the cluster analysis method. In addition, the values of the outside air enthalpy used for categorization into groups include the value of the outside air enthalpy at a specific time of each day, and the average value of the outside air enthalpy at a specific time zone (for example, from 8:00 to 18:00) of each day. Alternatively, the average value of the daily outside enthalpy of each day can be used. The number of the groups is not limited, but it is appropriate that the number is 9-15.
本発明においては、上記各グループ毎に空調機の設定温度（後述する基本設定温度）を適宜設定する。各グループ毎の空調機の設定温度の一例を表１に示す。 In the present invention, the set temperature (basic set temperature to be described later) of the air conditioner is appropriately set for each of the above groups. An example of the set temperature of the air conditioner for each group is shown in Table 1.
本発明においては、上述した各グループ毎に適宜設定した設定温度で空調機を運転してもよいが、上記グループ内の各日の平均日射量を用いて上記設定温度を補正し、この補正した設定温度で空調機を運転することがより好ましい。これにより、日射量を反映させて、空調機の設定温度をより適切に設定することができる。この場合、上記補正を行う式に限定はないが、例えば下記式（ｂ）を挙げることができる。
α＝θ＋（６０−Ｓ）×β …（ｂ）
α：補正後の設定温度（℃）
θ：基本設定温度＝上述した各グループ毎に適宜設定した設定温度（℃）
Ｓ：日射量の比率＝各日の平均日射量／日射量最大日の日射量×１００（％）
β：適宜設定される係数（本例では０．０３とした）
In the present invention, the air conditioner may be operated at a set temperature appropriately set for each group described above, but the set temperature is corrected using the average solar radiation amount of each day in the group, and this correction is performed. It is more preferable to operate the air conditioner at the set temperature. Thereby, the set temperature of an air conditioner can be set more appropriately reflecting the amount of solar radiation. In this case, the equation for performing the correction is not limited, but for example, the following equation (b) can be given.
α = θ + (60−S) × β (b)
α: Set temperature after correction (° C)
θ: Basic set temperature = Set temperature (° C) set appropriately for each group mentioned above
S: ratio of solar radiation = average daily solar radiation / solar radiation maximum daily solar radiation x 100 (%)
β: Coefficient set appropriately (in this example, 0.03)
本発明においては、１年間の各日における任意時刻の外気エンタルピまたは外気温度と各グループの空調機の設定温度とが関連付けられたデータベースを用い、空調機の運転日の任意時刻における外気エンタルピまたは外気温度の値を用いてグループの空調機の設定温度を選択することができる。これにより、空調機の運転日の実際の気候特性に応じて空調機の設定温度を容易に選択することができる。この場合、図２に示すように、外気エンタルピと外気温度との間にはほぼ直線的な相関関係があるので、空調機の運転日の任意時刻における外気温度の値を用いてグループの空調機の設定温度を選択することができる。 In the present invention, an outdoor air enthalpy or outdoor air at an arbitrary time on each day of the year is used, and a database in which an outdoor air temperature or an outdoor air temperature is associated with a set temperature of each group of air conditioners is used. The set temperature of the air conditioners in the group can be selected using the temperature value. Thereby, the preset temperature of the air conditioner can be easily selected according to the actual climate characteristics of the air conditioner operating day. In this case, as shown in FIG. 2, since there is a substantially linear correlation between the outside air enthalpy and the outside air temperature, the group air conditioner is used by using the value of the outside air temperature at any time on the operating day of the air conditioner. The set temperature can be selected.
本発明においては、空調機を運転するに当たり、室内温度を指標として、空調機の給気の風量制御および冷温水の流量制御を同時に行うことにより、室内温度を空調機の設定温度に近づけるようにすることができる。室内温度を空調機の設定温度に近づけるように空調機を運転する場合、空調機における制御対象は給気量と冷温水流量であり、給気量は給気ファンの風量、冷温水流量はバルブ開度により制御される。従来は、給気ファンの風量は給気ダクト内の静圧、バルブ開度は給気温度を指標として制御されており、別々の指標により個別に制御されていた。また、給気ダクト内の静圧を給気ファンの風量制御に用いる場合には、ＶＡＶ（可変風量ユニット）が必要である。これに対し、上述のように１つの制御量（室内温度＝空調機の設定温度と室内温度との差）を指標として、空調機の給気の風量制御および冷温水の流量制御を同時に行う場合は、従来よりもエネルギー効率を高くして、より省エネルギーを図ることができる。 In the present invention, when operating the air conditioner, the air temperature control of the air supply of the air conditioner and the flow control of the cold / hot water are simultaneously performed using the room temperature as an index so that the room temperature approaches the set temperature of the air conditioner. can do. When operating the air conditioner so that the room temperature is close to the set temperature of the air conditioner, the control targets in the air conditioner are the air supply amount and the cold / hot water flow rate, the air supply amount is the air flow rate of the air supply fan, and the cold / hot water flow rate is the valve It is controlled by the opening. Conventionally, the air volume of the air supply fan is controlled using the static pressure in the air supply duct, and the valve opening is controlled using the supply air temperature as an index. Further, when the static pressure in the air supply duct is used for air volume control of the air supply fan, a VAV (variable air volume unit) is required. On the other hand, as described above, when one control amount (the difference between the room temperature = the set temperature of the air conditioner and the room temperature) is used as an index, the air volume control of the air supply of the air conditioner and the flow control of the cold / hot water are simultaneously performed. The energy efficiency can be made higher than before and energy can be saved.
上記のように室内温度を指標として空調機の給気の風量制御および冷温水の流量制御を同時に行う場合、例えば図３に示すように、設定温度と室内温度とが等しい場合、および設定温度と室内温度との差が小さい場合には、給気ファンの風量および冷温水流量を最小限にして省エネルギーを図り、設定温度と室内温度との差が大きくなるにしたがって給気ファンの風量および冷温水流量を徐々に大きくすることができる。 As described above, when the air volume control of the air conditioner air supply and the flow control of the cold / hot water are simultaneously performed using the room temperature as an index, for example, as shown in FIG. 3, when the set temperature is equal to the room temperature, and the set temperature If the difference from the room temperature is small, energy is saved by minimizing the air volume of the air supply fan and the flow rate of cold / hot water, and as the difference between the set temperature and the room temperature increases, The flow rate can be gradually increased.
Claims (4)
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| JP2007225566A JP2009058176A (en) | 2007-08-31 | 2007-08-31 | Operation method for air conditioner |
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| JP2007225566A JP2009058176A (en) | 2007-08-31 | 2007-08-31 | Operation method for air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014010196A1 (en) * | 2012-07-09 | 2014-01-16 | パナソニック株式会社 | Air conditioning management device and air conditioning management system |
| WO2023058158A1 (en) * | 2021-10-06 | 2023-04-13 | 三菱電機ビルソリューションズ株式会社 | Air conditioning system |
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| JPH0350436A (en) * | 1989-07-14 | 1991-03-05 | Takenaka Komuten Co Ltd | Air conditioning system and flow rate adjusting device |
| JPH06337147A (en) * | 1993-05-26 | 1994-12-06 | Hitachi Plant Eng & Constr Co Ltd | Air-conditioning device |
| JP2001336805A (en) * | 2000-05-26 | 2001-12-07 | Minoru Tanaka | Method of calculating demand for energy of heat source system of building and method of drawing up scheme of optimum operation of the system |
| JP2005037109A (en) * | 2003-07-17 | 2005-02-10 | Hitachi Lighting Ltd | Air conditioning/ lighting linked control system |
| JP2006046767A (en) * | 2004-08-03 | 2006-02-16 | Ebara Refrigeration Equipment & Systems Co Ltd | Dehumidifier |
| JP2006085252A (en) * | 2004-09-14 | 2006-03-30 | E & E Planning:Kk | Method for operating energy supply system |
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- 2007-08-31 JP JP2007225566A patent/JP2009058176A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH02197749A (en) * | 1989-01-27 | 1990-08-06 | Ohbayashi Corp | Fan coil unit |
| JPH0350436A (en) * | 1989-07-14 | 1991-03-05 | Takenaka Komuten Co Ltd | Air conditioning system and flow rate adjusting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014010196A1 (en) * | 2012-07-09 | 2014-01-16 | パナソニック株式会社 | Air conditioning management device and air conditioning management system |
| JP2014016093A (en) * | 2012-07-09 | 2014-01-30 | Panasonic Corp | Air-conditioning management device, and air-conditioning management system |
| WO2023058158A1 (en) * | 2021-10-06 | 2023-04-13 | 三菱電機ビルソリューションズ株式会社 | Air conditioning system |
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