Research on surface coating of a solar collector using thermal spray foaming methodology for low cost

저가형 용사피막형성법 이용 태양열 집열판 표면 처리에 관한 연구

  • Kim, Bu-Ahn (Dept. of materials Science and Engineering, Pukyong Natl. University) ;
  • Choi, Kwang-Hwan (Dept. of Refrigeration and air-conditioning Engineering, Pukyong Natl. University) ;
  • Roh, Sang-Hoon (Dept. of materials Science and Engineering, Graduate School, Pukyong Natl. University)
  • 김부안 (부경대학교 공과대학 신소재공학부 재료공학과) ;
  • 최광환 (부경대학교 공과대학 기계공학부 냉동공조공학과) ;
  • 노상훈 (부경대학교 공과대학 신소재공학부 재료공학과 대학원)
  • Published : 2006.09.30

Abstract

A solar collector surface coated with a low emission material is still imported from other developed countries expensively. Thus it is very significant to develop a new coating method with a cheap alternative coating material instead of the imported high-cost collector surface. A thermal spray method was adopted to coat a cheap Titania on a copper plate. Generally, a new coating on the copper plate was conducted successfully by selecting a proper ratio of carbon and acetylene. By measuring an absorption rate of solar and heat emission rate, all the plate types gained a high absorption rate of 98% approximately, more or less, but all of the types still have a high emission. Finally it was clear that more research is needed to advance the coated-plate to subdue the high emission from the hot plate surface and the higher the Titania's proportion is, the lower the emission is on the surface.

Keywords

References

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