Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings
Light-emitting diode (LED) lighting should be considered for lighting efficiency enhancement, however, waste heat from light-emitting diode (LED) lighting increases the internal cooling load during the summer season. In order to solve this problem we propose a thermal management system for light-emi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-06-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/8/7/6658 |
| _version_ | 1817993802332241920 |
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| author | Byung-Lip Ahn Ji-Woo Park Seunghwan Yoo Jonghun Kim Seung-Bok Leigh Cheol-Yong Jang |
| author_facet | Byung-Lip Ahn Ji-Woo Park Seunghwan Yoo Jonghun Kim Seung-Bok Leigh Cheol-Yong Jang |
| author_sort | Byung-Lip Ahn |
| collection | DOAJ |
| description | Light-emitting diode (LED) lighting should be considered for lighting efficiency enhancement, however, waste heat from light-emitting diode (LED) lighting increases the internal cooling load during the summer season. In order to solve this problem we propose a thermal management system for light-emitting diode (LED) lighting with a heat exchanger module integrated with the building’s heating, ventilation, and air conditioning (HVAC) system to move the lighting’s waste heat outdoors. An experiment was carried out to investigate the thermal effects in a test chamber and the heat exchange rate between the heat sink and the duct air. The heat generated by the light-emitting diode (LED) lighting was calculated as 78.1% of light-emitting diode (LED) input power and the heat exchange rate of the lighting heat exchange module was estimated to be between 86.5% and 98.1% according to the light-emitting diode (LED) input power and the flow rate of air passing the heat sink. As a result, the average light-emitting diode (LED) lighting heat contribution rate for internal heat gain was determined as 0.05; this value was used to calculate the heating and cooling energy demand of the office building through an energy simulation program. In the simulation results, the cooling energy demand was reduced by 19.2% compared with the case of conventionally installed light-emitting diode (LED) lighting. |
| first_indexed | 2024-04-14T01:44:37Z |
| format | Article |
| id | doaj.art-01580f021a1e4062b8bbd987156b0fce |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T01:44:37Z |
| publishDate | 2015-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-01580f021a1e4062b8bbd987156b0fce2022-12-22T02:19:36ZengMDPI AGEnergies1996-10732015-06-01876658667110.3390/en8076658en8076658Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office BuildingsByung-Lip Ahn0Ji-Woo Park1Seunghwan Yoo2Jonghun Kim3Seung-Bok Leigh4Cheol-Yong Jang5Energy Saving Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, KoreaEnergy Saving Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, KoreaEnergy Saving Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, KoreaEnergy Saving Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, KoreaDepartment of Architectural Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, KoreaEnergy Saving Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, KoreaLight-emitting diode (LED) lighting should be considered for lighting efficiency enhancement, however, waste heat from light-emitting diode (LED) lighting increases the internal cooling load during the summer season. In order to solve this problem we propose a thermal management system for light-emitting diode (LED) lighting with a heat exchanger module integrated with the building’s heating, ventilation, and air conditioning (HVAC) system to move the lighting’s waste heat outdoors. An experiment was carried out to investigate the thermal effects in a test chamber and the heat exchange rate between the heat sink and the duct air. The heat generated by the light-emitting diode (LED) lighting was calculated as 78.1% of light-emitting diode (LED) input power and the heat exchange rate of the lighting heat exchange module was estimated to be between 86.5% and 98.1% according to the light-emitting diode (LED) input power and the flow rate of air passing the heat sink. As a result, the average light-emitting diode (LED) lighting heat contribution rate for internal heat gain was determined as 0.05; this value was used to calculate the heating and cooling energy demand of the office building through an energy simulation program. In the simulation results, the cooling energy demand was reduced by 19.2% compared with the case of conventionally installed light-emitting diode (LED) lighting.http://www.mdpi.com/1996-1073/8/7/6658light-emitting diode (LED)lighting heatthermal managementcooling energy demand |
| spellingShingle | Byung-Lip Ahn Ji-Woo Park Seunghwan Yoo Jonghun Kim Seung-Bok Leigh Cheol-Yong Jang Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings Energies light-emitting diode (LED) lighting heat thermal management cooling energy demand |
| title | Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings |
| title_full | Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings |
| title_fullStr | Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings |
| title_full_unstemmed | Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings |
| title_short | Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings |
| title_sort | savings in cooling energy with a thermal management system for led lighting in office buildings |
| topic | light-emitting diode (LED) lighting heat thermal management cooling energy demand |
| url | http://www.mdpi.com/1996-1073/8/7/6658 |
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