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Technology of selective absorber coatings on solar collectors using black chromium+3 sulfate acid on substrates
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 Title & Authors
Technology of selective absorber coatings on solar collectors using black chromium+3 sulfate acid on substrates
Ohm, Tae-In; Yeo, Woon-Tack; Kim, Dong-Chan;
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 Abstract
One of the most important factors that have a large influence on performance of the solar water heater system is performance of the solar collector, more detailedly, coating technology on the surface of the solar collector, which can provide high solar absorptance and low emittance. The core of the coating technology is to coat solar selective surfaces. In this study, various performance experiments are carried out using coating technology. Here, IGBT(Insulated Gate Bipolar Transistor) of 5000A-15V was used as the surface processing rectifier which can stably output power and also can control voltage and current. The plating solution mainly contains black chrome concentration, H-y Conductivity, N-u Complex, NF Additive and NC-2 Wetter. Before applying the black chrome coating on the copper plate, optimal conditions are provided by using various preprocessing methods such as removal of fat, activation, electrolytic polishing, nickel strike, copper sulfate plating and bright neckel plating, and then the automatic continuous coating experiment are performed according to plating time and cathode current density. In the experiment, after the removal of fat, chemical polishing, nickel strike and activation processes as the preprocessing methods, the black chrome coating was performed in a plate solution temperature of and a cathode current density of for 90 seconds. The thickness of chrome and nickel on the coated plate is , respectively. As a result of the coating experiment, it showed the most excellent performance having a high solar absorptance of 98% and a low emittance of when the black chrome surface had a thickness of .
 Keywords
Solar collector;Selective coating;Chromium Substrate;Emittance;Absorptance;
 Language
Korean
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 References
1.
Kim D. H., LeeT. K., ChoS. H., AuhP. C., Electrodeposition of Black Chrome Solar Selective Coatings by Pulse Current Method. Proceeding of the 1992 International ASME Conference, Hawaii, 1992.

2.
LeeT. K., Kim D. H., AuhP. C., The Optical Characteristics of Black Chrome Solar, Selective Films Coated by the Pulse Current Electrolysis. Solar Energy Materials and Solar Cells 29, 149, 1993. crossref(new window)

3.
LeeK. D., Selective Coatings for Efficient Solar Energy Utilization. The Korean Physical Socieity 50, 5, 2005.

4.
Pettit R. B., Sowell R. R., Solar Absorptance and Emittance Properties of Several Solar Coatings. Journal of Vacuum Science & Technology 13, 596, 1976. crossref(new window)

5.
Driver P. M., An Electrochemical Approach to the Characterization of Black Chrome Selective Surfaces. Solar Energy Materials 4, 179, 1981. crossref(new window)

6.
Driver P. M., McCormick P. G., Black Chrome Selective Surfaces. Solar Energy Materials 6, 159, 1982. crossref(new window)

7.
Avila, A. J., Brown, M. J., Design Factors in Pulse Plating. Plating 58, 1105, 1970.

8.
Lee T. K., Kim D. H., Cho S. H., Auh C. M., Certificate of Patent(Korea) 1995-0010241, 1995.

9.
Lee T. K., Cho S. H., Chea Y. H., Auh C. M., An Electrochemical Study on the New Black Chrome Bath Solution for the Electrodeposited Solar Selective Surface. Solar Energy 10, 1, 1990.

10.
Lee T. K., Kim D. H., Cho S. H., Auh P. C., The Micro Structural Interpretation of the Black Chrome Solar Selective Coatings by the Pulse Current Electrolysis Method. Preceding of the 1992 International ASME Conference, Hawaii, 1992.

11.
Park Y. J., Ohm T. I., Black metal plating solution for copper plate with low emissivity and high absorption of solar energy. Certificate of Patent(Korea) 10-1102471, 2011.