What performance of air-conditioner refrigerant in the needed

about the refrigerant performance of air-conditioner, as if has little to do with us. Actually otherwise, in professional air-conditioner manufacturer home, high demand for their performance of refrigerant, such ability can guarantee freezers and after sales, can let the customer use safe and reliable. The refrigerant in the commercial freezer needs to have what performance? Let the cooler price one by one to tell me, its performance is as follows: ( 1) Physical properties. Critical temperature is higher than the environment temperature, under normal temperature or low temperature can be condensed into liquid, because the condensing temperature of the air-conditioner refrigeration cycle if close to the critical temperature, the throttling loss is very big, the economic performance of refrigeration cycle is bad; The saturated evaporation of refrigerant in the refrigeration temperature range, the pressure should be slightly higher than atmospheric pressure, in order to avoid air leakage into the freezer refrigeration system; Condensing pressure cannot be too high, generally no more than 1. 5 ~ 2. 2 mpa, lest too bulky equipment, compressor power consumption is too big. At the same time, the condensing pressure and the ratio of the evaporating pressure cannot too big, lest compressor exhaust temperature is too high; Solidification temperature as low as possible, in order to obtain more low evaporation temperature; Unit volume refrigerating capacity, in order to improve the compressor can effect comparing, reduce the volume of equipment; Coefficient of thermal conductivity is higher, in order to improve the efficiency of heat exchanger; Viscosity and density is smaller, in order to reduce energy loss in the process of the refrigerant flow; With lubricating oil miscibility or mixed, and no influence on the performance of the lubricating oil lubrication and electrical properties, also do not reduce air-conditioner refrigerant thermodynamic properties of itself. ( 2) Chemical properties. Chemical stability is good, does not decompose at high temperature: effect on metal and other materials, no corrosion; Do not react with freezing oil. ( 3) Safety performance. Under general conditions, not burning, not explode, non-toxic, odourless, tasteless, no pollution environment. ( 4) Economic performance. The price is low, easy to purchase, storage and transportation. A good freezers, the refrigerant requires the above conditions can be, the snow of air-conditioner is has done this, let's customers to buy rest assured that with the peace of mind, improve their market awareness, and so on.
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