A Dutch research team has outlined a new method to assess the coefficient of performance of air-to-water heat pumps by considering ambient temperature and relative humidity. The model is based on the ...

Scientists led by China’s Dongguan University of Technology have proposed a novel control approach for water-to-water heat pumps that uses carbon dioxide (CO2) as refrigerant. The model-based optimal ...

Chillers have typically been thought of as providing cold water to cooling coils located in a variety of air-handling systems throughout a building. However, there are certain building owners and ...

The residential heating and cooling industry is facing unprecedented regulatory changes from both federal and state mandates. Government leaders from 24 states have instituted ambitious residential ...