| 摘要 |
Disclosed is an air conditioning system and method employing at least two compressors so as to improve the refrigeration efficiency, in which expansion of a refrigerant in an expansion section is controlled according to a used state of the compressors depending on a refrigeration load, so that a general performance of the system can be improved. In the air conditioning system and method, measurement of the changes in the flowing quantity and the pressure of the refrigerant, which is necessary in order to control the opening state of the expansion section, can be executed by sensing and comparing the temperatures at the outlet port of the evaporation section and at the inlet port of the compression section, which show a temperature difference according to the flowing quantity and the pressure of the refrigerant. Therefore, the air conditioning system and method of the present invention achieves a simple construction, which can be easily assembled and enables the manufacturing cost to be reduced.
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