As mentioned in Part 1, the HVACR industry is in the process of researching new low-GWP refrigerants and refrigerant blends that can be incorporated into refrigeration and air conditioning systems.

Last month’s article covered a 400-series refrigerant blend’s total temperature glide, effective temperature glide, fractionation, superheat, subcooling, and average evaporator and condensing ...

Question: What are constant pressure charts? Answer: Constant pressure charts like the 500 mb chart shown below may seem obvious to interpret. It has many features similar to what you might see on the ...