STUDY ON HEAT CHARGE OF FIRST CYCLE IN SEASONAL DUCT HEAT STORE
Solar energy is an important environment-friendly energy. The paper introduces the concept, classification, and development of central solar heating plants. A seasonal solar energy application must be incorporated with heat storage to bridge the gap between demand and supply of heat and achieve a high solar fraction at a reasonable cost. An interesting solution to the storage problem is seasonal storage in clay. The paper presents theoretical analysis about heat transfer process during charge process of first cycle in duct heat store. A finite line source model is presented to analyze the process when influence radius is within thermal insulation. It is concluded that proper thermal insulation areas upper boreholes and the dimension with long diameter and short depth of boreholes are suitable for duct heat store.
Bing DI Chongfang MA Zhongbao LIU Guangyu ZHANG Yuting WU
The Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Education Ministry, China, T Department of Refrigeration and Cryogenics Engineering, College of Environment and Energy Engineerin China Architecture Design &Research Group, China National Engineering Research CNERC for Human Settl
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）