Proposal to Refine Solar Radiation of Typical Meteorological Year Database and Evaluation on the Influence of Air-Conditioning Load
The Typical meteorological year (TMY) database is often used to calculate air-conditioning loads, and it directly affects the building energy savings design. Among four kinds of TMY databases in China—including Chinese Typical Year Weather (CTYW), International Weather for Energy Calculations (IWEC)...
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| Format: | Article |
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MDPI AG
2021-04-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/4/524 |
| _version_ | 1797536979529760768 |
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| author | Jihui Yuan Kazuo Emura Craig Farnham |
| author_facet | Jihui Yuan Kazuo Emura Craig Farnham |
| author_sort | Jihui Yuan |
| collection | DOAJ |
| description | The Typical meteorological year (TMY) database is often used to calculate air-conditioning loads, and it directly affects the building energy savings design. Among four kinds of TMY databases in China—including Chinese Typical Year Weather (CTYW), International Weather for Energy Calculations (IWEC), Solar Wind Energy Resource Assessment (SWERA) and Chinese Standard Weather Data (CSWD)—only CSWD is measures solar radiation, and it is most used in China. However, the solar radiation of CSWD is a measured daily value, and its hourly value is separated by models. It is found that the cloud ratio (diffuse solar radiation divided by global solar radiation) of CSWD is not realistic in months of May, June and July while compared to the other sets of TMY databases. In order to obtain a more accurate cloud ratio of CSWD for air-conditioning load calculation, this study aims to propose a method of refining the cloud ratio of CSWD in Shanghai, China, using observed solar radiation and the Perez model which is a separation model of high accuracy. In addition, the impact of cloud ratio on air-conditioning load has also been discussed in this paper. It is shown that the cloud ratio can yield a significant impact on the air conditioning load. |
| first_indexed | 2024-03-10T12:08:33Z |
| format | Article |
| id | doaj.art-5b76cb7d0d694664920421ae40a75236 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T12:08:33Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-5b76cb7d0d694664920421ae40a752362023-11-21T16:21:23ZengMDPI AGAtmosphere2073-44332021-04-0112452410.3390/atmos12040524Proposal to Refine Solar Radiation of Typical Meteorological Year Database and Evaluation on the Influence of Air-Conditioning LoadJihui Yuan0Kazuo Emura1Craig Farnham2Department of Architecture and Civil Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi 441-8580, JapanDepartment of Human Life Science, Osaka City University, Sumiyoshi-ku Sugimoto 3-3-138, Osaka 558-8585, JapanDepartment of Human Life Science, Osaka City University, Sumiyoshi-ku Sugimoto 3-3-138, Osaka 558-8585, JapanThe Typical meteorological year (TMY) database is often used to calculate air-conditioning loads, and it directly affects the building energy savings design. Among four kinds of TMY databases in China—including Chinese Typical Year Weather (CTYW), International Weather for Energy Calculations (IWEC), Solar Wind Energy Resource Assessment (SWERA) and Chinese Standard Weather Data (CSWD)—only CSWD is measures solar radiation, and it is most used in China. However, the solar radiation of CSWD is a measured daily value, and its hourly value is separated by models. It is found that the cloud ratio (diffuse solar radiation divided by global solar radiation) of CSWD is not realistic in months of May, June and July while compared to the other sets of TMY databases. In order to obtain a more accurate cloud ratio of CSWD for air-conditioning load calculation, this study aims to propose a method of refining the cloud ratio of CSWD in Shanghai, China, using observed solar radiation and the Perez model which is a separation model of high accuracy. In addition, the impact of cloud ratio on air-conditioning load has also been discussed in this paper. It is shown that the cloud ratio can yield a significant impact on the air conditioning load.https://www.mdpi.com/2073-4433/12/4/524TMY databaseCSWDcloud ratioobserved solar radiationperez modelair-conditioning load |
| spellingShingle | Jihui Yuan Kazuo Emura Craig Farnham Proposal to Refine Solar Radiation of Typical Meteorological Year Database and Evaluation on the Influence of Air-Conditioning Load Atmosphere TMY database CSWD cloud ratio observed solar radiation perez model air-conditioning load |
| title | Proposal to Refine Solar Radiation of Typical Meteorological Year Database and Evaluation on the Influence of Air-Conditioning Load |
| title_full | Proposal to Refine Solar Radiation of Typical Meteorological Year Database and Evaluation on the Influence of Air-Conditioning Load |
| title_fullStr | Proposal to Refine Solar Radiation of Typical Meteorological Year Database and Evaluation on the Influence of Air-Conditioning Load |
| title_full_unstemmed | Proposal to Refine Solar Radiation of Typical Meteorological Year Database and Evaluation on the Influence of Air-Conditioning Load |
| title_short | Proposal to Refine Solar Radiation of Typical Meteorological Year Database and Evaluation on the Influence of Air-Conditioning Load |
| title_sort | proposal to refine solar radiation of typical meteorological year database and evaluation on the influence of air conditioning load |
| topic | TMY database CSWD cloud ratio observed solar radiation perez model air-conditioning load |
| url | https://www.mdpi.com/2073-4433/12/4/524 |
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