Last month’s article left off looking at how to verify designs through the field measurement of delivered Btu. In order to accomplish this, you’ll need to understand the basics of the Btu formulas.

Many technicians believe the only way to verify refrigerant charge on a heat pump in heating mode is to recover the existing refrigerant charge and weigh in the factory charge. However, most ...

Formula 1 cooling systems are far more advanced than regular cars, using multiple radiators, ducts, and heat exchangers to handle extreme temperatures. Unlike road cars that rely on a single radiator ...