TY - JOUR
TI - A novel imaging light funnel and its collecting heat experiments
AU - Chang Zehui
AU - Zheng Hongfei
AU - Yang Yingjun
AU - Tao Tao
AU - Xue Xiaodi
JN - Thermal Science
PY - 2016
VL - 20
IS - 2
SP - 707
EP - 716
PT - Article
AB - This paper presents a novel imaging light funnel. Its structure and operation  principle are introduced, and its ray path is analyzed by computational  simulation. The relationship between the light concentrating of the light  funnel and the incident angle is investigated. The results show that the  changes of focal spot size, shape, energy distribution and center of focal  spot are affected by incident angle. In addition to theoretical analysis,  several imaging light funnels are constructed, and experiments for single  funnel and multiple funnels with series heating system are carried out. Two  experiments results and heat collection efficiency of system are obtained.  Experiment results show that the heating temperature of this system can reach  335°C and the heat collection efficiency could reach 40%. When the multiple  funnels with series heat the water, the temperature can reach 150°C.