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RISS 인기검색어
- 검색키워드
- 저자 : Armando C. Oliveira (검색결과 2 건)
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Armando C. Oliveira 한국에너지기후변화학회 2008 에너지기후변화학회지 Vol.3 No.1
Micro-cogeneration systems have been increasingly used in buildings as a means of generating energy with higher global efficiency and reduced carbon emissions. The decentralised way of generating electricity together with useful heat, is one of the priorities of the European Union energy policy. In this paper, different available processes! equipments for micro-cogeneration are reviewed, including those that may be driven by solar energy. Their main features and some economic results are discussed. The possibility of their use for cooling is also addressed. The situation in some European countries is analysed.
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Experimental Study On Solar Clothes Dryer using Evacuated Tube Collector and PV Panel
Jie Zhu,Saffa Riffat,Armando C. Oliveira 한국에너지기후변화학회 2008 에너지기후변화학회지 Vol.3 No.2
A solar dryer for clothes and its testing results are presented in this paper. The dryer combines a solar thermal collector with a photo voltaic panel to supply hot dry air for clothes, but can also be used for food drying applications. Twin-glass evacuated tubes with heat pipes are used in the solar collector as the main heat source, while DC fans powered by a PV panel are used as the power source for hot air circulation in this unit. The performance of the dryer was tested under the UK real weather conditions. The air in the dryer is heated by more than 17℃ and the humidity is decreased more than 20% for a solar collector mea of 0.78㎡ and a PV panel mea of 0.68 ㎡. The average water removing rate is 0.464 ㎏/h for a solar irradiation of 646.5 W/㎡.
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