UTILIZATION OF BYPASS REFRIGERANT TO PROVIDE REHEAT AND DEHUMIDIFICATION FUNCTION IN REFRIGERANT SYSTEM

摘要

Refrigerant system with an unloader bypass line to selectively unload the compressor and deliver refrigerant from a partially (or fully) compressed loaction to a suction port of the compressor. A section of the unloader bypass line is in the path of air passed over an evaporator towards an environment to be conditioned. The bypass line section would contain refrigerant that is a higher temperature than the refrigerant delivered into the evaporator by the main circuit. The bypass line section reheats the air above the temperature to which it has been cooled in the evaporator and achieves a desired humidity level. The reheat function is obtained without a dedicated reheat loop, associated components, and additional structure. The flow control device may be adjustable (e.g. modulating or pulsating) to achieve variable sensible heat ratios and to cover a wide range of potential applications. The bypass line may have extended heat transfer elements.