Characteristics of office lighting energy consumption and its impact on air conditioning energy consumption
The energy consumption of office buildings has increased sharply since the 21st century with the increasing urbanization coverage. At this stage, the energy consumption of office buildings in China mainly comes from air conditioning and lighting. This paper obtains the regression equation of natural...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-08-01
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| Series: | Energy and Built Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S266612332300017X |
| _version_ | 1797356882858344448 |
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| author | Siao Song Jibo Long Hanyu Jiang Bin Ran Lun Yao |
| author_facet | Siao Song Jibo Long Hanyu Jiang Bin Ran Lun Yao |
| author_sort | Siao Song |
| collection | DOAJ |
| description | The energy consumption of office buildings has increased sharply since the 21st century with the increasing urbanization coverage. At this stage, the energy consumption of office buildings in China mainly comes from air conditioning and lighting. This paper obtains the regression equation of natural lighting illumination and radiant heat gain under different curtain conditions through experiments and simulations, and gives the theoretical calculation process of curtain regulation of office thermal and light environment and energy consumption. DeST and Ecotect software were used to analyze the thermal and light environment and energy consumption of the office. The results show that setting curtains in the room can effectively improve the indoor thermal light environment, the higher the transmittance of curtains the lower the lighting energy consumption, the higher the number of high temperature hours of natural room temperature and the greater the radiant heat gain. The room with thick curtains has the lowest energy consumption for air conditioning in summer, followed by the room with thin curtains, and the room without curtains has the highest energy consumption for air conditioning. The room without curtains has the lowest energy consumption for artificial lighting, the room with thin curtains has the second lowest, and the room with thick curtains has the highest electricity consumption for artificial lighting. The air conditioning energy consumption accounts for the main building energy consumption, followed by the lighting energy consumption. After setting curtains in the office, the air conditioning energy consumption caused by the solar radiation heat entering the room through the exterior windows is smaller than the lighting energy consumption caused by artificial lighting. Therefore, the installation of internal shading with moderate transmittance and good thermal insulation performance can make the energy saving of lighting and air conditioning energy consumption reach the optimal value. |
| first_indexed | 2024-03-08T14:35:18Z |
| format | Article |
| id | doaj.art-7f363e09b82f411d8c7a5b2882bdb829 |
| institution | Directory Open Access Journal |
| issn | 2666-1233 |
| language | English |
| last_indexed | 2024-03-08T14:35:18Z |
| publishDate | 2024-08-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Energy and Built Environment |
| spelling | doaj.art-7f363e09b82f411d8c7a5b2882bdb8292024-01-12T04:57:35ZengKeAi Communications Co., Ltd.Energy and Built Environment2666-12332024-08-0154529543Characteristics of office lighting energy consumption and its impact on air conditioning energy consumptionSiao Song0Jibo Long1Hanyu Jiang2Bin Ran3Lun Yao4College of Civil Engineering, Xiangtan University, Xiangtan, Hunan 411105, ChinaCorresponding author.; College of Civil Engineering, Xiangtan University, Xiangtan, Hunan 411105, ChinaCollege of Civil Engineering, Xiangtan University, Xiangtan, Hunan 411105, ChinaCollege of Civil Engineering, Xiangtan University, Xiangtan, Hunan 411105, ChinaCollege of Civil Engineering, Xiangtan University, Xiangtan, Hunan 411105, ChinaThe energy consumption of office buildings has increased sharply since the 21st century with the increasing urbanization coverage. At this stage, the energy consumption of office buildings in China mainly comes from air conditioning and lighting. This paper obtains the regression equation of natural lighting illumination and radiant heat gain under different curtain conditions through experiments and simulations, and gives the theoretical calculation process of curtain regulation of office thermal and light environment and energy consumption. DeST and Ecotect software were used to analyze the thermal and light environment and energy consumption of the office. The results show that setting curtains in the room can effectively improve the indoor thermal light environment, the higher the transmittance of curtains the lower the lighting energy consumption, the higher the number of high temperature hours of natural room temperature and the greater the radiant heat gain. The room with thick curtains has the lowest energy consumption for air conditioning in summer, followed by the room with thin curtains, and the room without curtains has the highest energy consumption for air conditioning. The room without curtains has the lowest energy consumption for artificial lighting, the room with thin curtains has the second lowest, and the room with thick curtains has the highest electricity consumption for artificial lighting. The air conditioning energy consumption accounts for the main building energy consumption, followed by the lighting energy consumption. After setting curtains in the office, the air conditioning energy consumption caused by the solar radiation heat entering the room through the exterior windows is smaller than the lighting energy consumption caused by artificial lighting. Therefore, the installation of internal shading with moderate transmittance and good thermal insulation performance can make the energy saving of lighting and air conditioning energy consumption reach the optimal value.http://www.sciencedirect.com/science/article/pii/S266612332300017XCurtainsLight environmentThermal environmentEnergy saving |
| spellingShingle | Siao Song Jibo Long Hanyu Jiang Bin Ran Lun Yao Characteristics of office lighting energy consumption and its impact on air conditioning energy consumption Energy and Built Environment Curtains Light environment Thermal environment Energy saving |
| title | Characteristics of office lighting energy consumption and its impact on air conditioning energy consumption |
| title_full | Characteristics of office lighting energy consumption and its impact on air conditioning energy consumption |
| title_fullStr | Characteristics of office lighting energy consumption and its impact on air conditioning energy consumption |
| title_full_unstemmed | Characteristics of office lighting energy consumption and its impact on air conditioning energy consumption |
| title_short | Characteristics of office lighting energy consumption and its impact on air conditioning energy consumption |
| title_sort | characteristics of office lighting energy consumption and its impact on air conditioning energy consumption |
| topic | Curtains Light environment Thermal environment Energy saving |
| url | http://www.sciencedirect.com/science/article/pii/S266612332300017X |
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