A high temperature heat pump, which works with HFO-1336mzz(Z) as refrigerant can generate heat up to 160°C from waste heat and other low-temperature heat sources, avoiding the use of fossil fuel energy sources. The system offers heating capacities up to 200 kW with high coefficient of performance (COPs) at high-temperature lifts. HFO-1336mzz(Z) is an A1 refrigerant (low toxicity, non-flammable) with a boiling point of 33.4ºC and a relatively high critical temperature of 171.3ºC making it suitable for this application. Its atmospheric lifetime is 22 days and it has a GWP of 2 (AR5 value, revised from 9, the AR4 value listed in the F-Gas Regulation) contributing to the environmental performance of the heat pump.
The operating range up to 160°C makes it ideal for drying, sterilization and pasteurization as well as many other heat-demanding processes. The demand for heat at temperatures above 100 °C is massive. Traditionally, high-temperature heat pumps have been limited to output temperatures in the 90-100 °C range, and to produce even higher temperatures industries have relied on energy-intensive gas, oil and electric boilers. Compared to fossil fuel heating the heat pump can reduce emissions by about 95%, and with a COP of 5 for some operating conditions reduces by 80% compared to direct electric heating emissions.
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