Development of a new dynamic test procedure for the laboratory characterization of a whole heating and cooling system
| Autor: | Roberto Fedrizzi, Anton Soppelsa, Diego Menegon |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
Emulation business.industry 020209 energy Mechanical Engineering 02 engineering and technology Building and Construction Test method Management Monitoring Policy and Law 021001 nanoscience & nanotechnology law.invention Test (assessment) General Energy Test case law 0202 electrical engineering electronic engineering information engineering Water cooling 0210 nano-technology business Cluster analysis Simulation Heat pump Dynamic testing |
| Zdroj: | Applied Energy. 205:976-990 |
| ISSN: | 0306-2619 |
| Popis: | The performance of heating and cooling systems are affected by their dynamic operating conditions. As a consequence, a sound evaluation of system performance should be done through a dynamic test procedure. However, the complexity, the cost, and the time for such type of experimentation are obstacles to the diffusion of this test method. A new whole system test procedure was developed to reduce its potential failure. The test method considers the emulation of system components that cannot be installed in the laboratory, while the selection of short-yet-significant test sequence is performed classifying the days of the year with clustering analysis. The procedure was applied to a solar-assisted heat pump system in four different European climates. The seasonal performance figures are extrapolated from the test results and compared with the numerical simulations of the entire heating and cooling system. In all test cases the seasonal performance factors are lower than the simulated ones by approximately 10%. The results obtained with dynamic tests confirm the necessity of their implementation, since they provide useful information to improve the system layout and control. In this way, the manufacturers can introduce more efficient products into the market. |
| Databáze: | OpenAIRE |
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