METHOD OF EXPANDING COMPRESSION REFRIGERATOR OPERATING TEMPERATURE RANGE Russian patent published in 2013 - IPC F25B1/00 F25B49/02 

FIELD: process engineering.

SUBSTANCE: compression refrigerator comprises forced air cooling condenser to expand operating temperature range by adjusting condenser heat exchange power. Coolant is fed from condenser outlet via controlled thermoelectric cooler-heater to condenser inlet. In compliance with another version, condenser rear heat transfer surfaces are cooled-heated by thermoelectric modules with heat-removal radiators arranged at condenser airflow outlet. Note here that control voltage with appropriate polarity is fed to thermoelectric modules after ambient temperature reaches refrigerator limit ratings.

EFFECT: expanded operating temperature range

2 dwg