The lubricant in refrigeration and air conditioning systems has many important functions. Even though the circulated refrigerant is the working fluid required for cooling, the lubricant or oil is ...

The Makita MAC 5200 is an air compressor you can take with you to the job site, but how portable and easy to use is it? Here's everything we know.

Compressed Air is regarded as the fourth utility next to power, water and fuel (natural gas), and generally the one that all customers should produce and provide themselves. Compressed air is the ...

Occasionally a technician may need to temporarily add oil to a semi-hermetic reciprocating compressor to maintain an adequate oil level, if the oil has been trapped out in the evaporator or suction ...

Your air conditioning can feel fine one day and then blow warm air the next, with no warning. When that happens, the AC ...

Compressor speed as a function of molecular weight, while maintaining the same suction and discharge pressure and mass flow rate. Polytropic head and efficiencies as a function of gas molecular weight ...

Tests on two in–service compressors show corrected performance maps can predict a compressor's performance within 5% relative error under most situations. The ...