SET Proceedings 2978-4387 Caravel Press 10.65582/set.2010.092 2010.092 Experimental Investigation of a Solar Energy Drying System in Conjunction with Air Source Heat Pump LuoHuilong kustluo@yahoo.com.cn PengJinhui jhpeng@kmust.edu.cn ZhangLibo GuoShenghui LiYu Faculty of Architecture Engineering, Kunming University of Science and Technology, Kunming, China Faculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming, China 24082010 9 978-1-995850-04-7 1 5 24 August 2010 © 2010 Copyright WSSET 2010

Raw mineral materials drying is a high energy consumption processing in metallurgy industry. In order to reduce the energy consumption of purified arenaceous quartz drying, a novel solar energy drying system in conjunction with air source heat pump is developed. Based on the component design and system optimization matching, a solar energy drying system in conjunction with one air source heat pump unit (SEDS-ASHP) was designed and built. The SEDS-ASHP has been put into experimental operation successfully. Field tests on the SEDS-ASHP were performed under all kinds of typical climate conditions in Kunming, Yunnan Province of China. Test results show that, under the climatic conditions of daily solar radiation being about 15.3 to 21.6MJ/m², the SEDS-ASHP can furnish 40 to 65 °C hot air for arenaceous quartz drying. For the solar air collector, the instantaneous efficiency varies within about 0.36 to 0.64, the daily is about 0.34 to 0.53. For the air source heat pump unit, the average COP (coefficient of performance) varies within the range of 2.5 to 3.6. Compared with conventional electric dryer, the SEDS-ASHP is economical feasible. In areas with abundant solar resources, the SEDS-ASHP may provide an effective way for raw mineral materials drying.

 solar energy heat pump drying system thermal performance 24 to 27 August 2010 9th International Conference on Sustainable Energy Technologies SET2010 9 Shanghai, China