Enhancing the Energy Efficiency—COP of the Heat Pump Heating System by Energy Optimization and a Case Study
This article deals with the degrees of freedom and possible optimums, specifically with the energy optimums of the heat pump heating system. The authors developed an multi objective optimization procedure that allows for the determination of the optimal motor power for the circulation and well pumps...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/7/2981 |
| _version_ | 1797608021577170944 |
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| author | Arpad Nyers Jozsef Nyers |
| author_facet | Arpad Nyers Jozsef Nyers |
| author_sort | Arpad Nyers |
| collection | DOAJ |
| description | This article deals with the degrees of freedom and possible optimums, specifically with the energy optimums of the heat pump heating system. The authors developed an multi objective optimization procedure that allows for the determination of the optimal motor power for the circulation and well pumps in order to achieve the maximum <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mi>O</mi><mi>P</mi></mrow></semantics></math></inline-formula>. Upon selecting the type and size of the water-to-water heat pump, based on the heating demand of the buildings, the proper power of the circulation and well pumps must be determined. There are several procedures used for determining the pump’s power. However, none of those methods ensures the optimum power, i.e., the maximum coefficient of performance, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mi>O</mi><mi>P</mi></mrow></semantics></math></inline-formula> of the heating system. In this study, a multi objective analytical-numerical dimensioning procedure was developed for the determination of the optimal mass flow rate of warm and well water. Based on the flow rate values, the optimum power of the circulation and well pumps can be calculated. Due to the wide scope of the topic, the application of the optimization procedure is presented in a case study, but only for determining the optimum power of the circulation pump. The validity of the procedure was confirmed by measurements. The results obtained with the optimization showed that through the energy optimization of the circulation pump power, the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mi>O</mi><mi>P</mi></mrow></semantics></math></inline-formula> of the system increased by 5.34%. |
| first_indexed | 2024-03-11T05:38:46Z |
| format | Article |
| id | doaj.art-5ce492bade9e43529eeeab8953c2c349 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T05:38:46Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-5ce492bade9e43529eeeab8953c2c3492023-11-17T16:35:45ZengMDPI AGEnergies1996-10732023-03-01167298110.3390/en16072981Enhancing the Energy Efficiency—COP of the Heat Pump Heating System by Energy Optimization and a Case StudyArpad Nyers0Jozsef Nyers1Faculty of Engineering and Information Technology, University of Pécs, Boszorkány utca 2, 7624 Pécs, HungaryDoctoral School of Applied Informatics and Applied Mathematics, Óbuda University, Bécsi út 96, 1034 Budapest, HungaryThis article deals with the degrees of freedom and possible optimums, specifically with the energy optimums of the heat pump heating system. The authors developed an multi objective optimization procedure that allows for the determination of the optimal motor power for the circulation and well pumps in order to achieve the maximum <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mi>O</mi><mi>P</mi></mrow></semantics></math></inline-formula>. Upon selecting the type and size of the water-to-water heat pump, based on the heating demand of the buildings, the proper power of the circulation and well pumps must be determined. There are several procedures used for determining the pump’s power. However, none of those methods ensures the optimum power, i.e., the maximum coefficient of performance, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mi>O</mi><mi>P</mi></mrow></semantics></math></inline-formula> of the heating system. In this study, a multi objective analytical-numerical dimensioning procedure was developed for the determination of the optimal mass flow rate of warm and well water. Based on the flow rate values, the optimum power of the circulation and well pumps can be calculated. Due to the wide scope of the topic, the application of the optimization procedure is presented in a case study, but only for determining the optimum power of the circulation pump. The validity of the procedure was confirmed by measurements. The results obtained with the optimization showed that through the energy optimization of the circulation pump power, the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>C</mi><mi>O</mi><mi>P</mi></mrow></semantics></math></inline-formula> of the system increased by 5.34%.https://www.mdpi.com/1996-1073/16/7/2981energy optimizationlocal optimumsmulti objective optimumheating systemheat pump |
| spellingShingle | Arpad Nyers Jozsef Nyers Enhancing the Energy Efficiency—COP of the Heat Pump Heating System by Energy Optimization and a Case Study Energies energy optimization local optimums multi objective optimum heating system heat pump |
| title | Enhancing the Energy Efficiency—COP of the Heat Pump Heating System by Energy Optimization and a Case Study |
| title_full | Enhancing the Energy Efficiency—COP of the Heat Pump Heating System by Energy Optimization and a Case Study |
| title_fullStr | Enhancing the Energy Efficiency—COP of the Heat Pump Heating System by Energy Optimization and a Case Study |
| title_full_unstemmed | Enhancing the Energy Efficiency—COP of the Heat Pump Heating System by Energy Optimization and a Case Study |
| title_short | Enhancing the Energy Efficiency—COP of the Heat Pump Heating System by Energy Optimization and a Case Study |
| title_sort | enhancing the energy efficiency cop of the heat pump heating system by energy optimization and a case study |
| topic | energy optimization local optimums multi objective optimum heating system heat pump |
| url | https://www.mdpi.com/1996-1073/16/7/2981 |
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