Several readers took issue with this, noting that central rack refrigeration systems — which are traditionally used in supermarkets around the U.S. — are not going anywhere and that propane units have ...

The new line is charged with environmentally safe propane. New from Hussmann Corp., the MicroDS refrigeration system line is charged with environmentally safe propane (R290), a natural refrigerant.

“The goal is to compare and contrast HFC [hydrofluorocarbon], CO 2, glycol, and propane refrigeration systems by explaining, from an equipment perspective, the strengths and weaknesses of each system ...

The project team succeeded in optimally designing the heat pump so that 255 grams of propane in the refrigeration circuit was sufficient for operation. This means that the entire system (cleaning ...

“In Germany, only heat pumps using less than 150 grams of propane ... refrigeration circuit to use slightly more refrigerant and have a slightly larger heat exchanger to achieve a more balanced ...

In the project “LC150” (Low Charge 150 g), the Fraun-hofer Institute for Solar Energy Systems ISE and a consortium of heat pump manufacturers are developing a standardized and refrigerant-reduced ...

New research from Spain has sought to understand if dimethyl ether and ternary mixtures of carbon dioxide, dimethyl ether and butane could represent an alternative to propane in heat pump systems.

The Fraunhofer Institute for Solar Energy Systems ISE has now developed a functional model of a refrigeration circuit using propane, a climate-friendly and cost-effective refrigerant alternative.