2018 Volume 25 Issue 2 Pages 75-84
SPA (Square-pipe array) is one of the way to converge heat or light. In this paper, we study the possibility of SPA as a local heater. We conducted a simulation and an experiment, where we use SPA of 862mm-wide, 504mm-hight, 40mm-deep. In this study, light/heat source SPA and light / heat received surface were placed at intervals of 500mm. As a result, SPA can converge heat around focal point. According to simulations, under SPA condition, we confirm vertical / horizontal light distribution around focal point. According to experiments, by using SPA, ping-pong globe temperature became 1.0 degree higher than the time when we started to heat it. On the other hand, without SPA, ping-pong globe temperature became 0.3 degree higher. According to experiments, we confirmed that SPA leads to higher globe temperature than no-SPA condition.