Abstract
n this work the development and testing of a combi storage tank for the combination with a heat pump is described.
The appropriate size and segmentation of the storage in different zones was determined with simulations in TRNSYS.
Installations in the storage tank for efficient handling of the high volume flow rates of a heat pump were designed and selected using CFD simulations. Finally, the finished storage tank was tested to determine its stratification
efficiency, demonstrating its good stratification properties. The storage tank performs very well with a stratification efficiency of 84 % at system level. The separation of the temperature ranges for hot water preparation in the storage
tank above and the space-heating zone remains intact even when charged with the high mass flow rate of 2570 kg/h.
As a result, the heat pump can be operated with a low supply temperature (the power weighted average supply temperature of the heat pump was 33 °C) and thus at a favorable operating point with high efficiency
The appropriate size and segmentation of the storage in different zones was determined with simulations in TRNSYS.
Installations in the storage tank for efficient handling of the high volume flow rates of a heat pump were designed and selected using CFD simulations. Finally, the finished storage tank was tested to determine its stratification
efficiency, demonstrating its good stratification properties. The storage tank performs very well with a stratification efficiency of 84 % at system level. The separation of the temperature ranges for hot water preparation in the storage
tank above and the space-heating zone remains intact even when charged with the high mass flow rate of 2570 kg/h.
As a result, the heat pump can be operated with a low supply temperature (the power weighted average supply temperature of the heat pump was 33 °C) and thus at a favorable operating point with high efficiency
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the ISES EuroSun 2020 Conference – 13th International Conference on Solar Energy for Buildings and Industry |
| Editors | Alexandros Charalambides, Wolfgang Streicher, Daniel Mugnier |
| Place of Publication | Freiburg |
| Publisher | International Solar Energy Society |
| Pages | 740-749 |
| ISBN (Electronic) | 978-3-9820408-2-0 |
| DOIs | |
| Publication status | Published - 1 Sept 2020 |
| Event | EuroSun 2020: 13th International Conference on Solar Energy for Buildings and Industry - Virtuell, Greece Duration: 1 Sept 2020 → 3 Sept 2020 https://pcoconvin.eventsair.com/eurosun20/ |
Conference
| Conference | EuroSun 2020 |
|---|---|
| Country/Territory | Greece |
| City | Virtuell |
| Period | 1/09/20 → 3/09/20 |
| Internet address |
Fields of Expertise
- Sustainable Systems