ACHP test rig in NTNU

The ammonia-water absorption-compression heat pump (ACHP) test rig in NTNU Lab

Osenbrück 4.0 side

3D illustration of the ammonia-water absorption-compression heat pump (ACHP) test rig in NTNU Lab (side view)

150°C steam production heat pump

Location:
NTNU (Norwegian University of Science and Technology), Trondheim, Norway

Food Category:
Meat

Application:
Steam Production

Main Chain Link:
Process

Impact:
GHG emissions reduction; waste heat recovery; energy consumption reduction

The ammonia-water absorption-compression heat pump (ACHP) cycle combines the technologies of an absorption and vapour compression heat pump with a mixture of ammonia and water as the natural working fluid.
Heat is extracted and released at non-constant temperature glides and the necessary compression ratio is lower compared to conventional vapour compression heat pumps.

The ACHP can combine both cooling and heating processes and achieve high heat sink temperature up to 150°C, which is suitable for replacement of fossil fuel boilers. These properties make the ACHP a promising system for high-temperature applications in the food supply chain, such as meat processing, fish processing, and dairies.

The ACHP test rig in NTNU can provide a flexible experimental system for the investigation and optimization of the operating parameters, conditions and components for the ACHP applications in different food processes.

It serves as a starting point for further research by combining theoretical approaches, possible solutions, and experimental results.

 

MAIN CONTACTS:

Armin Hafner, armin.hafner@ntnu.no

Shuai Ren, shuai.ren@ntnu.no