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Viability assessment of solar distillation for desalination in coastal locations of Indian sub-continent – Thermodynamic, condensate quality and enviro-economic aspects
Solar Energy ( IF 6.7 ) Pub Date : 2020-02-01 , DOI: 10.1016/j.solener.2019.12.080
H. Sharon , K.S. Reddy , D. Krithika , Ligy Philip

Abstract In the current investigation, viable solar desalting sites in coastal India are identified by detailed thermodynamic and enviro-economic analyses. Mathematical model developed for thermodynamic performance assessment is validated using experiments conducted in inclined solar distillation unit under the climatic condition of Chennai (13.08°N, 80.27°E). Distillation unit produced high quality condensate even from highly saline (40,600 to 60,656 mg/L salinity) feed water. Availability analysis indicated the magnitude of improvement potential, availability destruction, losses and ways for further improvement. Maximum condensate yield, energy and availability efficiency of distillation unit is around 7.09 L/d, 53.45% and 5.39%, respectively for Nellore (one of the east coast locations). Condensate production cost of 18.16 to 32.78 USD/kL and desired availability output of 1.80 to 3.38 kWh/USD invested are observed for the distillation unit at 5.0% interest rate. Maximum yearly average life cycle conversion efficiency, net carbon-dioxide, sulphur-dioxide and nitrous oxide emission alleviated by the unit is around 39.19%, 25.83 tons, 185.73 kg and 75.86 kg, respectively. Viability assessment indicated positive signs for deployment of solar distillation units in 14 locations of coastal India. The proposed solar distillation unit requires lower evaporation area compared to other passive solar distillation units installed in India for the same production capacity.

中文翻译:

印度次大陆沿海地区用于海水淡化的太阳能蒸馏可行性评估——热力学、冷凝水质量和环境经济方面

摘要 在目前的调查中,通过详细的热力学和环境经济分析确定了印度沿海可行的太阳能脱盐场。为热力学性能评估开发的数学模型通过在钦奈 (13.08°N, 80.27°E) 气候条件下在倾斜太阳能蒸馏装置中进行的实验进行验证。蒸馏装置甚至从高盐度(40,600 至 60,656 mg/L 盐度)给水中产生高质量的冷凝水。可用性分析表明了改进潜力的大小、可用性破坏、损失和进一步改进的方法。对于 Nellore(东海岸地区之一),蒸馏装置的最大冷凝产量、能量和可用性效率分别约为 7.09 L/d、53.45% 和 5.39%。冷凝水生产成本为 18.16 至 32。以 5.0% 的利率观察到蒸馏装置的 78 美元/千升和 1.80 至 3.38 千瓦时/美元的预期可用性输出。该装置最大年均生命周期转换效率,净二氧化碳、二氧化硫和一氧化二氮排放量分别为39.19%左右、25.83吨、185.73公斤和75.86公斤。可行性评估表明,在印度沿海的 14 个地点部署太阳能蒸馏装置出现了积极迹象。与印度安装的其他无源太阳能蒸馏装置相比,拟议的太阳能蒸馏装置需要的蒸发面积较小,具有相同的生产能力。该装置减少的二氧化硫和一氧化二氮排放量分别约为39.19%、25.83吨、185.73公斤和75.86公斤。可行性评估表明,在印度沿海的 14 个地点部署太阳能蒸馏装置出现了积极迹象。与印度安装的其他无源太阳能蒸馏装置相比,拟议的太阳能蒸馏装置需要的蒸发面积较小,具有相同的生产能力。该装置减少的二氧化硫和一氧化二氮排放量分别约为39.19%、25.83吨、185.73公斤和75.86公斤。可行性评估表明,在印度沿海的 14 个地点部署太阳能蒸馏装置出现了积极迹象。与印度安装的其他无源太阳能蒸馏装置相比,拟议的太阳能蒸馏装置需要的蒸发面积较小,具有相同的生产能力。
更新日期:2020-02-01
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