SOLAR-HYBRID AIR HEAT SYSTEM AS AN ALTERNATIVE FOR CURING AUTOMOTIVE PAINT
DOI:
https://doi.org/10.59627/cbens.2016.1906Keywords:
Solar Energy, Linear Fresnel Collector, Automotive Paint CureAbstract
Solar thermal can fulfill a substantial amount of heat demand in industrial processes. Concentrated solar process heat applications can provide hot air and hot water needed in a temperature range of up to 400°C. Curing car paint is a production process that needs hot air in a temperature range of 200ºC. In this paper, a solar-hybrid air heat system was defined and evaluated. Linear Fresnel collectors heat the pressurized water to an outlet temperature of 230 °C. The solar field is complemented by an auxiliary fossil-fuel boiler. Finally, the heat is dissipated in a convection oven via a pressurized water – air heat exchanger. The model was simulated in the software TRNSYS (TRaNsient SYstems Simulation) for the region of Belo Horizonte - MG using the Meteonorm database. The results indicate that the solar field would be self-sufficient during part of the day for clear sky and would help reduce the natural gas consumption during cloudy days.
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