An Experimental Study of the Applicability of the Outdoor Air Enthalpy Difference Method for Air Source Heat Pumps in Operation through In Situ Measurements
This study aimed to evaluate the applicability of the outdoor air enthalpy difference method for air source heat pumps (ASHP) in operation through quantitative analysis using field tests. In this context, field measurements were performed on a single ASHP, and the results were compared with other in...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/13/2/448 |
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| author | Jinwoong Son Junho Hong Taeyun Aum |
| author_facet | Jinwoong Son Junho Hong Taeyun Aum |
| author_sort | Jinwoong Son |
| collection | DOAJ |
| description | This study aimed to evaluate the applicability of the outdoor air enthalpy difference method for air source heat pumps (ASHP) in operation through quantitative analysis using field tests. In this context, field measurements were performed on a single ASHP, and the results were compared with other in situ measurement methods. The main results are as follows. The analysis of the distribution of the discharge temperature of the outdoor unit suggested that the temperature between the hub and tip on the outlet of the outdoor unit can represent the discharge temperature, enabling further simplification of measurement procedures. The mean error of the average cooling capacity using the outdoor air enthalpy difference method was 8% compared to that of the in situ refrigerant enthalpy difference method. In summary, the in situ outdoor unit air enthalpy difference method may require additional measurements to increase reliability, but considering the advantage of relatively easy measurement, it is considered suitable for short-term in situ diagnosis of ASHP performance. |
| first_indexed | 2024-03-11T09:03:59Z |
| format | Article |
| id | doaj.art-54c87c3fb0c14c4e8b0d140ede39b381 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T09:03:59Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-54c87c3fb0c14c4e8b0d140ede39b3812023-11-16T19:32:48ZengMDPI AGBuildings2075-53092023-02-0113244810.3390/buildings13020448An Experimental Study of the Applicability of the Outdoor Air Enthalpy Difference Method for Air Source Heat Pumps in Operation through In Situ MeasurementsJinwoong Son0Junho Hong1Taeyun Aum2Hanil Mechanical & Electrical Consultants, Seoul 07271, Republic of KoreaHanil Mechanical & Electrical Consultants, Seoul 07271, Republic of KoreaHanil Mechanical & Electrical Consultants, Seoul 07271, Republic of KoreaThis study aimed to evaluate the applicability of the outdoor air enthalpy difference method for air source heat pumps (ASHP) in operation through quantitative analysis using field tests. In this context, field measurements were performed on a single ASHP, and the results were compared with other in situ measurement methods. The main results are as follows. The analysis of the distribution of the discharge temperature of the outdoor unit suggested that the temperature between the hub and tip on the outlet of the outdoor unit can represent the discharge temperature, enabling further simplification of measurement procedures. The mean error of the average cooling capacity using the outdoor air enthalpy difference method was 8% compared to that of the in situ refrigerant enthalpy difference method. In summary, the in situ outdoor unit air enthalpy difference method may require additional measurements to increase reliability, but considering the advantage of relatively easy measurement, it is considered suitable for short-term in situ diagnosis of ASHP performance.https://www.mdpi.com/2075-5309/13/2/448ASHPenergy performancein situ measurementauditexisting building |
| spellingShingle | Jinwoong Son Junho Hong Taeyun Aum An Experimental Study of the Applicability of the Outdoor Air Enthalpy Difference Method for Air Source Heat Pumps in Operation through In Situ Measurements Buildings ASHP energy performance in situ measurement audit existing building |
| title | An Experimental Study of the Applicability of the Outdoor Air Enthalpy Difference Method for Air Source Heat Pumps in Operation through In Situ Measurements |
| title_full | An Experimental Study of the Applicability of the Outdoor Air Enthalpy Difference Method for Air Source Heat Pumps in Operation through In Situ Measurements |
| title_fullStr | An Experimental Study of the Applicability of the Outdoor Air Enthalpy Difference Method for Air Source Heat Pumps in Operation through In Situ Measurements |
| title_full_unstemmed | An Experimental Study of the Applicability of the Outdoor Air Enthalpy Difference Method for Air Source Heat Pumps in Operation through In Situ Measurements |
| title_short | An Experimental Study of the Applicability of the Outdoor Air Enthalpy Difference Method for Air Source Heat Pumps in Operation through In Situ Measurements |
| title_sort | experimental study of the applicability of the outdoor air enthalpy difference method for air source heat pumps in operation through in situ measurements |
| topic | ASHP energy performance in situ measurement audit existing building |
| url | https://www.mdpi.com/2075-5309/13/2/448 |
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