Rising energy costs and environmental concerns are boosting interest in air conditioning and refrigeration conferences July 14-17 at Purdue University, drawing hundreds of researchers from around 30 ...

The vapor-compression cycle has four stages (compression, condensation, expansion, and evaporation) and one ultimate goal: converting refrigerant into a state that makes it useful as a heat transfer ...

The proposed system uses waste heat by thermally coupling a water lithium bromide absorption heat transformer with a water vapor compression heat pump. It reportedly achieved a temperature elevation ...

Vapor compression cycles are predominantly used in air-conditioning, heat pump and refrigeration equipment. A good understanding of transient behaviors of vapor compression systems is critical to ...

When we think of chillers, we generally think of the systems that are designed to do the heavy lifting when it comes to cooling large facilities — retail stores, office towers, shopping malls, airport ...

Automobiles, appliances, power plants, factories and electrical utilities all waste one thing: heat. More specifically, they produce heat as a by-product of their normal operations, but that heat is ...

Heat pumps provide heating in winter and cooling in summer. While they’re OK for moderate climates, they are not efficient in extreme cold climates. Building on work that began five years ago, ...