New back-pressure control system improving the annual performance of scroll compressors

The performance of a compressor using the back-pressure control system discussed here is much better than that of a conventional compressor, especially under the cooling half-load condition at a low speed and compression ratio. Nearly optimum performance is obtained under all operating conditions by...

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Bibliographic Details
Main Authors: Tsubono, Isamu, Takebayashi, Masahiro, Hayase, Isao, Inaba, Koichi
Format: Conference Proceeding
Language:English
Subjects:
AIR CONDITIONERS
Air conditioning
COMPRESSORS
CONTROL SYSTEMS
DESIGN
ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ENERGY CONSUMPTION
Friction
HOUSES
Interfaces (materials)
Pressure control
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Summary:The performance of a compressor using the back-pressure control system discussed here is much better than that of a conventional compressor, especially under the cooling half-load condition at a low speed and compression ratio. Nearly optimum performance is obtained under all operating conditions by keeping the back pressure at a level that is a constant amount above the suction pressure. This reduces friction at the sliding portion between the orbiting and fixed scrolls, and eliminating the back-pressure holes decreases the compression loss due to the `breathing action.' This back-pressure control system greatly improves the annual performance (reduces annual energy consumption) of household air conditioners.
ISSN:0001-2505