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The Optical Properties of Black Coatings and Their Estimated Cooling Effect and Cooling Energy Savings Potential

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DOI: 10.4236/jpee.2014.24011    3,532 Downloads   4,525 Views   Citations

ABSTRACT

The optical properties of coatings pigmented with different black colorants were systematically investigated and their surface temperatures and cooling energy savings were estimated. The black coatings pigmented with chromite iron nickel black and manganese ferrite black spinel colorants are not cool enough to be energy efficient cool black coatings. The cool black coatings pigmented with NIR-transmitting perylene black and dioxazine purple colorants possess a green shade and a violet shade, respectively. The estimated surface temperature reduction values and annual cooling energy savings in Beijing range from 3.0°C and 1.21 kWhm-2yr-1 for the black coating pigmented with chromite iron nickel colorant to 13.8°C and 5.52 kWhm-2yr-1 for the black coating pigmented with dioxazine purple colorant, respectively.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Qin, J. , Qu, J. , Song, J. , Song, Z. , Zhang, W. , Shi, Y. , Zhang, T. , Xue, X. , Zhang, R. , Zhang, H. , Zhang, Z. and Wu, X. (2014) The Optical Properties of Black Coatings and Their Estimated Cooling Effect and Cooling Energy Savings Potential. Journal of Power and Energy Engineering, 2, 68-75. doi: 10.4236/jpee.2014.24011.

References

[1] Akbari, H., Levinson, R., Miller, W. and Berdahl, P. (2005) Cool Colored Roofs to Save Energy and Improve Air Quality. Passive and Low Energy Cooling for the Built Environment, Santorini, 19-21 May 2005, 89-100.
[2] Levinson, R., Berdahl, P., Akbari, H., Miller, W., Joedicke, I., Reilly, J., Suzuki, Y. and Vondra, M. (2007) Methods of Creating Solar-Reflective Nonwhite Surfaces and their Application to Residential Roofing Materials. Solar Energy Materials and Solar Cells, 91, 304-314. http://dx.doi.org/10.1016/j.solmat.2006.06.062
[3] Levinson, R., Akbaria, H. and Reilly, J.C. (2007) Cooler Tile-Roofed Buildings with Near-Infrared-Reflective Non-White Coatings. Building and Environment, 42, 2591-2605. http://dx.doi.org/10.1109/mitp.2008.113
[4] Santamouris, M., Synnefa, A. and Karlessi, T. (2011) Using Advanced Cool Materials in the Urban Built Environmentto Mitigate Heat Islands and Improve Thermal Comfort Conditions. Solar Energy, 85, 3085-3102. http://dx.doi.org/10.1016/j.solener.2010.12.023
[5] Synnefa, A., Santamouris, M. and Apostolakis, K. (2007) On the Development, Optical Properties and Thermal Performance of Cool Colored Coatings for the Urban Environment. Solar Energy, 81, 488-497. http://dx.doi.org/10.1016/j.solener.2006.08.005
[6] Uemoto, K.L., Sato, N.M.N. and John, V.M. (2010) Estimating Thermal Performance of Cool Colored Paints. Energy and Buildings, 42, 17-22. http://dx.doi.org/10.1016/j.enbuild.2009.07.026
[7] Hellring, S.D. and Mcquown, S.G. (2012) Coating Compositions That Transmit Infrared Radiation and Exhibit Color Stability and Related Coating Systems. EU Patent No. WO2012170230.
[8] Brady, R.F. and Wake, L.V. (1992) Principles and Formulations for Organic Coatings with Tailored Infrared Properties. Progress in Organic Coatings, 20, 1-25. http://dx.doi.org/10.1016/0033-0655(92)85001-C
[9] Levinson, R., Berdahl, P. and Akbari, H. (2005) Solar Spectral Optical Properties of Pigments-Part II: Survey of Common Colorants. Solar Energy Materials and Solar Cells, 89, 351-389. http://dx.doi.org/10.1016/ j.solmat.2004.11.013
[10] Bendiganavale, A.K. and Malshe, V.C. (2008) Infrared Reflective Inorganic Pigments. Recent Patents on Chemical Engineering, 1, 67-79. http://dx.doi.org/10.2174/2211334710801010067
[11] Shi, Y., Song, Z., Zhang, W., Song, J., Qu, J., Wang, Z., Li, Y., Xu, L. and Lin, J. (2013) Physicochemical Properties of Dirt-Resistant Cool White Coatings for Building Energy Efficiency. Solar Energy Materials & Solar Cells, 110, 133-139. http://dx.doi.org/10.1016/j.solmat. 2012.12.011
[12] Song, Z., Zhang, W., Shi, Y., Song, J., Qu, J., Qin, J., Zhang, T., Li, Y., Zhang, H. and Zhang, R. (2013) Optical Properties across the Solar Spectrum and Indoor Thermal Performance of Cool White Coatings for Building Energy Efficiency. Energy and Buildings, 63, 49-58. http://dx.doi.org/10.1016/j.enbuild.2013.03.051
[13] Zhang, W., Song, Z., Shi, Y., Song, J., Qu, J., Qin, J., Zhang, T., Li, Y., Xu, L. and Xue, X. (2013) The Effects of Manufacturing Processes and Artificial Accelerated Weathering on the Solar Reflectance and Cooling Effect of Cool Roof Coatings. Solar Energy Materials and Solar Cells, 118, 61-71. http://dx.doi.org/10.1016/ j.solmat.2013.07.039
[14] Song, Z., Qin, J., Qu, J., Song, J., Zhang, W., Shi, Y., Zhang, T., Xue, X., Zhang, R., Zhang, H., Zhang, Z. and Wu, X. (Unpublished) A Systematic Investigation on Factors Affecting The Spectral Reflectance of Cool Non-White Coatings.
[15] Wilkes, K.E. (1989) Model for Roof Thermal Performance. Oak Ridge National Laboratory.

  
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