| Issue |
E3S Web Conf.
Volume 100, 2019
11th Conference on Interdisciplinary Problems in Environmental Protection and Engineering EKO-DOK 2019
|
|
|---|---|---|
| Article Number | 00065 | |
| Number of page(s) | 9 | |
| DOI | https://doi.org/10.1051/e3sconf/201910000065 | |
| Published online | 10 June 2019 | |
Quasi-dynamic model of the energy efficiency for an air-to-water heat pump
Wrocław University of Science and Technology, Wybrzeże Stanisława Wyspiańskiego 27, 50-370 Wrocław, Poland
* Corresponding author: krzysztof.piechurski@pwr.edu.pl
The energy efficiency of air-to-water heat pump operating in an actual heating installation depends on many factors. In order to create a reliable model of the unit, it is necessary to include as many of them as possible. Unfortunately, the most common data provided by heat pump manufacturers are based on tests performed in accordance with the EN 14511 standard [1]. These tests are performed in steady-state conditions and do not provide reliable information on the impact of dynamic effects on the energy efficiency of the device. The solution may be the tests in quasi-dynamic conditions. The article presents the possibility of creating the characteristics of an air-to-water heat pumps based on operational data. The accuracy of the created model has been compared with the characteristics resulting from measurements in steady state conditions. It has been confirmed that dynamic test data, after proper selection, will allow to determine the characteristics of repeatable parameters and this can be an alternative to tests performed in fixed conditions.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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