Soon after having been proposed as a potential working fluid for high temperature heat pumps, HFO-1336mzz based heat pumps are presented by a Norwegian company, able to upgrade low temperature waste heat to more than 150 C with a COP in the range of 4 to 4.5.
For this application, no other small-to medium-sized heat pump can reach such high temperatures resulting from HFO-1336mzz thermodynamic properties, which might allow HFO-1336mzz based heat pumps to potentially displace fossil fuels or electric heaters or boilers in the future.
Demand for heat at temperatures above 100°C is very high, and huge amounts of waste heat are available. High temperature heat pumps can therefore be very attractive to a whole range of industries with high-temperature processes and operations.
Source : Manufacturer information
EFCTC NOTE: Other refrigerant fluids are being used to achieve high temperatures from waste heat including in some applications HFC-245fa and CO2.