| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4990759 | Applied Thermal Engineering | 2017 | 19 Pages |
Abstract
A prototype water-ammonia absorption heat transformer has been built and thoroughly tested. Compared to water-salts mixtures, water-ammonia allows operating the machine in a lower temperature range, fostering recover of low-grade heat. Driving temperatures between 60 °C and 64 °C were tested, with condenser temperatures of 8-16 °C. The unit proved able to operate in a stable, reliable and repeatable way in this working range, achieving gross temperature lifts up to 25 °C and thermal COPs in the range 0.400-0.475. Useful effect up to 4.5 kW was achieved, with electric consumption always below 100 W.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Silvia Garone, Tommaso Toppi, Marco Guerra, Mario Motta,