When comparing heat recovery products, efficiency numbers can be confusing. Manufacturers may quote temperature effectiveness, sensible recovery efficiency, or total energy recovery. Understanding these metrics helps you make fair comparisons and avoid under- or over-sizing equipment. Temperature Effectiveness (Sensible) Sensible effectiveness is the most common metric for air-to-air heat exchangers. It compares the actual temperature […]
Heat Pump Selection Calculation
A correct heat pump selection calculation prevents both undersizing (poor performance) and oversizing (short cycling and wasted capital). The method below applies to space heating, domestic hot water, and process heat recovery alike. Step 1 — Define the Load Start from the peak heating or cooling load in kW. For recovery duties, size to the […]
Heat Pipe Heat Exchanger Selection: When Passive Recovery Wins
What a heat pipe is A heat pipe is a sealed tube with a working fluid that transfers heat by evaporation and condensation – no moving parts, no power, no cross-flow. In HVAC, banks of heat pipes sit in the airstream to pre-cool (or pre-heat) incoming air using the exhaust stream. It is the most […]