A LIQUID OVER-FEEDING MILITARY AIR CONDITIONER

摘要

A 3-ton military air conditioning unit has been experimentally studied for baseline and liquid over-feeding operation (LOF). The test results indicate that LOF outperforms the baseline case over a wide ambient temperature range in terms of cooling capacity, power consumption, and system coefficient of performance (COP). At 95°F test point, the COP improvement for LOF is 19.8% over that of the baseline case. However, optimal refrigerant charge is essential for LOF to work properly.