Method of operating heat pump

Details Method of operating heat pump Method of operating heat pump

1992-03-12

1993-09-07

Sollecito, John M.

Refrigeration

Processes

Exchanging heat between plural systems, e.g., disparate

62 98, 622386, 62204, 62506, F25B 700

Patent

active

052418294

ABSTRACT:
A method of operating a heat pump having at least one circuit for circulation of a refrigerant comprising a compressor, a once-through path, complete counterflow type condenser as a high-temperature heat output means, an expansion valve and a low-temperature heat output means (evaporator or a segregated low-stage circuit for circulation of a lower-boiling-point refrigerant), which comprises choosing a supercool degree, which is equal to the difference between a saturation temperature and an outlet temperature of the refrigerant, to satisfy the conditions that a temperature effectiveness of refrigerant liquid as defined by the formula: ##EQU1## is at least 40% and the temperature difference of the denominator is at least 35.degree. C. As a result, boiling water of ca. 100.degree. C. or other high-temperature fluids can be discharged with a large temperature difference.

REFERENCES:
patent: 4796437 (1989-01-01), James

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