Cycle, Heat Exchanger Design and Prototype Development of a Water Ammonia Heat Transformer

This project was carried over under contract DENG13-14 with the Energy department of Politecnico di Milano. Specifications for a 5 kW heat output heat transformer working with water ammonia with a source stream of water @ 50°C, a cooling water stream @ 5°C and a delivery hot water @ 70°C were determined in a joint numerical simulation of the single effect heat transformer cycle carried over with the Relab group at the Energy Department.

Thereafter each single heat exchanger has been specifically designed, numerically simulated, built and assembled in a prototype unit. The prototype unit has been safety pressure tested, charged and is currently under testing at the Relab testing facility.

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