CO2 as a refrigerant in cascade supermarket systems, transcritical applications, transport refrigeration, and heat pumps were among major developments in recent years. Here is a summary of those developments.
The refrigerator is actually a heat pump, as the method of operation is identical apart from one difference: Heat is extracted from the refrigerator and discharged into the surroundings, whereas the heat pump uses the thermal energy in the surroundings for heating purposes.
Honeywell has announced the availability of its new Solstice™ L-41 low global warming potential (GWP) refrigerant, developed as a lower GWP alternative to R-410A. According to Honeywell, Solstice L-41 offers a 75 percent reduction in GWP compared to R-410A.
Marvair’s high efficiency wall mount heat pumps and air conditioners are available with the GreenCube Energy Recovery Ventilator. The GreenCube ERV is an enthalpy plate energy exchanger with no moving parts.
Robur’s absorption process combines the advantages of a condensing boiler and an electric heat pump into one unit. The air-to-water reversible heat pump supplies hot water up to 140°F or chilled water down to 38°F.
Two NuTone packaged systems — heat pumps and packaged gas/electric models — include all-aluminum microchannel coils for lighter weight, smaller size, better durability, and greater reliability in corrosive environments, said the company.
The expanding applications for ammonia in commercial refrigeration are being demonstrated in several recent projects involving heat pumps. What constitutes one possibility for efficient management of heat energy?
The Luxaire® brand Acclimate™ packaged 2- to 5-ton dual-fuel heat pump features low nitrogen oxide (NOx) for reduced carbon emissions, R-410A refrigerant, standard louvered condenser coil protection, and easy power and control wiring connections for reduced installation time and costs.
Development prospects for Cincinnati’s eclectic Northside neighborhood have been given a big boost by the opening of the former American Can factory as a new mixed-use complex. What has resulted?
The Luxaire® brand Acclimate™ packaged 2- to 5-ton dual-fuel heat pump features low nitrogen oxide (NOx) for reduced carbon emissions, R-410A refrigerant, standard louvered condenser coil protection, and easy power and control wiring connections for reduced installation time and costs.