Abstract
| Original language | English |
|---|---|
| Title of host publication | Proceedings of ECOS 2017: 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems |
| Number of pages | 16 |
| Publication date | 2017 |
| Publication status | Published - 2017 |
| Event | 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems - The Conrad Prebys Aztec Student Union, San Diego State University 6075 Aztec Cir Dr, San Diego, United States Duration: 2 Jul 2017 → 6 Jul 2017 Conference number: 30 http://www.ecosconference.org/ |
Conference
| Conference | 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems |
|---|---|
| Number | 30 |
| Location | The Conrad Prebys Aztec Student Union, San Diego State University 6075 Aztec Cir Dr |
| Country | United States |
| City | San Diego |
| Period | 02/07/2017 → 06/07/2017 |
| Internet address |
Keywords
- District heating
- Heat pumps
- Low temperature heat sources
Cite this
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Optimal usage of low temperature heat sources to supply district heating by heat pumps. / Pieper, Henrik; Ommen, Torben Schmidt; Markussen, Wiebke Brix; Elmegaard, Brian.
Proceedings of ECOS 2017: 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems. 2017.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
TY - GEN
T1 - Optimal usage of low temperature heat sources to supply district heating by heat pumps
AU - Pieper, Henrik
AU - Ommen, Torben Schmidt
AU - Markussen, Wiebke Brix
AU - Elmegaard, Brian
PY - 2017
Y1 - 2017
N2 - This paper presents a theoretical study on the optimal usage of different low temperature heat sources to supply district heating by heat pumps. The study is based on data for the Copenhagen region. The heat sources were prioritized based on the coefficient of performance calculated for each hour. Groundwater, seawater and air heat sources were compared with each other as well as to a scenario consisting of a combination of these heat sources. In addition, base load and peak load units were included. Characteristic parameters were the coefficient of performance, the number of full load hours and the covered demand of each heat source as well as required peak unit capacity. The results showed that heat pumps using different heat sources yield better performance than a heat pump based on a single one. The performance was influenced by the composition of the different heat sources. It was found that 78% groundwater, 22% seawater and 0% air resulted in highest COP of 3.33 for the given heat demand. Furthermore, the implementation of rule based short term storage made peak units redundant. The variation in base load capacity showed that heat pumps utilizing the analyzed heat sources could perform very efficiently without the presence of base load with a COP of 3.43.
AB - This paper presents a theoretical study on the optimal usage of different low temperature heat sources to supply district heating by heat pumps. The study is based on data for the Copenhagen region. The heat sources were prioritized based on the coefficient of performance calculated for each hour. Groundwater, seawater and air heat sources were compared with each other as well as to a scenario consisting of a combination of these heat sources. In addition, base load and peak load units were included. Characteristic parameters were the coefficient of performance, the number of full load hours and the covered demand of each heat source as well as required peak unit capacity. The results showed that heat pumps using different heat sources yield better performance than a heat pump based on a single one. The performance was influenced by the composition of the different heat sources. It was found that 78% groundwater, 22% seawater and 0% air resulted in highest COP of 3.33 for the given heat demand. Furthermore, the implementation of rule based short term storage made peak units redundant. The variation in base load capacity showed that heat pumps utilizing the analyzed heat sources could perform very efficiently without the presence of base load with a COP of 3.43.
KW - District heating
KW - Heat pumps
KW - Low temperature heat sources
M3 - Article in proceedings
BT - Proceedings of ECOS 2017: 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
ER -