4133 — 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 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.
Units: SI
Citation: ASHRAE Transactions, 1998, Vol 104, pt. 1A, San Francisco
Product Details
- Published:
- 1998
- Number of Pages:
- 8
- File Size:
- 1 file , 240 KB
- Product Code(s):
- D-7801
