Abstract
This study investigated methods for improving the long-term performance of a hybrid GSHP system coupled to district heating and an air-cooled chiller. These methods include adjusting indoor air setpoints and dimensioning air handling unit (AHU) cooling coils. The system performance was analysed based on 25-year simulations in IDA ICE 4.8. By using the studied methods, the minimum outlet brine temperature was increased by around 3°C in the last heating season, the average heat pump COP in the last heating season was increased by 3 % and the share of the GSHP heating energy in the last heating season was improved by 2 percentage points. However, ensuring long-term operation still required extra solutions.
Original language | English |
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Pages (from-to) | 53-57 |
Number of pages | 5 |
Journal | Rehva journal |
Volume | 61 |
Issue number | 1 |
Publication status | Published - 2024 |
MoE publication type | D1 Article in a trade journal |
Keywords
- hybrid ground source heat pump
- district heating
- borehole free cooling
- long-term performance analysis