Grant No. FENG.02.03-IP.05-0014/25 · TEAM NET FENG · Foundation for Polish Science

Turning industrial waste heat into process heat up to 200 °C

DUOHEAT is developing a two-stage, high-temperature heat pump that raises the temperature of low-temperature waste heat by at least 100 K — reaching levels usable in demanding industrial processes, powered by electricity instead of fuel.

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≥100 K Temperature lift
200 °C Heat delivered to industrial processes
10,992,912.95 PLN Project funding (TEAM NET FENG, FNP)
2029 Project completion
About the project

A two-stage heat pump built for industrial temperatures

Most waste heat leaving industrial plants is too cool to reuse. DUOHEAT is developing a heat pump that closes that gap: a two-stage, oil-free centrifugal compressor raises low-temperature waste heat to a usable process temperature, delivering a temperature lift of at least 100 K and heat up to 200 °C. The project is carried out by a consortium of three Polish research institutions and funded by the Foundation for Polish Science under the TEAM NET FENG programme.

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How it works

From waste heat to usable process heat

The heat pump closes the loop between an industrial process and its own waste heat, using clean electricity instead of burning fuel to bridge the temperature gap.

Diagram of the DUOHEAT cycle: an industrial process releases low-temperature waste heat, which the high-temperature heat pump — powered by clean electricity — converts into high-temperature usable heat returned to the process, reducing emissions and cutting operating costs.
Low-temperature waste heat leaving an industrial process is fed into the high-temperature heat pump. Powered by clean electricity, the two-stage compressor lifts its temperature by at least 100 K, producing usable heat up to 200 °C that is returned to the process — reducing emissions and cutting operating costs compared with fuel-fired heating.
Why it matters

Typical heat pumps stop below 100 °C

Conventional heat pumps generate heat below 100 °C. DUOHEAT is designed to break that barrier, reaching temperatures up to 200 °C while targeting a coefficient of performance (COP) of 2.5–8 — figures we compare against published heat pump technologies on the Project Goals page.

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Consortium

Gdańsk University of Technology

Institute of Fluid-Flow Machinery, Polish Academy of Sciences

AGH University of Krakow

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