Three types of compressors are predominantly used in industrial refrigeration systems, they include all except:
Many refrigerant systems are equipped with oil separators. In these systems, it is desirable to use a lubricant that has ____________ miscibility with the refrigerant fluid.
With refrigeration systems not equipped with oil-separation capability, the lubricant carried over from the compressor into the evaporator must be sufficiently ____________ in the refrigerant.