Applications Air conditioning

Although intended primarily for air-conditioning applications, these units have been successfully applied to the collection of relatively nonconducting mists such as oil. However, other process applications... 

Bromide as the absorbent in air conditioning applications. It does not suffer from the same problem, since LiBr is effectively non-volatile. However, the pair does have limitations due to the crystallisation limits of LiBr in water. In very hot climates where heat rejection temperatures are higher than about 35°C the pair cannot be used unless additives are used to move the crystallisation boundary. 

Conditioning Engineers. (1999). ASHRAE Handbook Heating, Ventilating, and Air Conditioning Applications. Atlanta Author. 

In many installations the noise of Ian operation is important. This is particularly true in heating and air conditioning applications and is a point to consider in industrial applications. 

The additional components for the air-conditioning application are shown in Figure 254. 

The demonstration project on thermochemical energy storage showed results in the heating and air-conditioning application with good correspondence with the theoretical calculated values. The operation control strategies have to be improved and simplified in the future. 

A different type of cross-flow exchanger is shown in Fig. 10-5. In this case the gas flows across finned-tube bundles and thus is unmixed since it is confined in separate channels between the fins as it passes through the exchanger. This exchanger is typical of the types used in air-conditioning applications. 

In a large air-conditioning application 1500 mVmin of air at I atm and 10°C are to be heated in a finned tube heat exchanger with hot water entering the exchanger at 80°C. The overall heat-transfer coefficient is 50 W/m2 °C. Calculate the required area for the heat exchanger for an exit air temperature of 35°C and exit water temperature of 50°C. 

So far we have discussed film condensation on the outer surfaces of tubes and other geometries, which is characterized by negligible vapor velocity and the unrestricted flow of the condensate. Most condensation processes encountered in refrigeration and air-conditioning applications, however, involve condensation on the inner surfaces of horizontal or vertical tubes. Heat transfer analysis of condensation inside tubes is complicated by the fact that it is strongly influenced by the vapor velocity and the rate of liquid accumulation on the walls of the tubes Q ig. 10-34). 

Besides the air conditioning applications, heat exchangers are also a possible application. Furthermore, as it was mentioned before, the introduction of PCM in building constructive solutions such as in floor, - walls, " and ceiling "" is very common, because of the interest on evaluating the consequences when PCM are incorporated in passive systems. 

It should be mentioned that the application of this modular design is not exhaustive, it extends beyond drying and cold storage applications. The concept of a coupled and decoupled process, for easy interface between equipment and air-handling unit, can be used in many air-conditioning applications through appropriate selection of expansion valve, compressor, condensers, evaporators, and refrigerant. 

American Society of Heating, Refrigeration, and Air-Conditioning Engineers, Inc 1999 ASHRAE Handbook Heating, Ventilating, and Air-conditioning Applications, Inch Pound ed., Chap. 46, Atlanta, Ga, 1991. 

ASHRAE Handbook. Heating, Ventilating and Air-Conditioning Applications. 2007. Atlanta, GA American Society of Heating, Refrigerating and Air-Conditioning Engineers. 

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