干旱区生态环境知识资源中心(Arid): Use of Low-Temperature Geothermal Energy for Desalination in the Western United States

Arid

DOI	10.2172/1227955
报告编号	NREL/TP--5500-65277
来源ID	OSTI_ID: 1227955
	Use of Low-Temperature Geothermal Energy for Desalination in the Western United States
	Turchi, Craig S. [National Renewable Energy Lab. (NREL), Golden, CO (United States)]; Akar, Sertac [National Renewable Energy Lab. (NREL), Golden, CO (United States)]; Cath, Tzahi [Colorado School of Mines, Golden, CO (United States)]; Vanneste, Johan [Colorado School of Mines, Golden, CO (United States)]; Geza, Mengistu [Colorado School of Mines, Golden, CO (United States)]
英文摘要	This joint project between the National Renewable Energy Laboratory and the Colorado School of Mines has examined the potential of using low-temperature geothermal resources for desalination. The temperature range in question is not well suited for electricity generation, but can be used for direct heating. Accordingly, the best integration approaches use thermal desalination technologies such as multi-effect distillation (MED) or membrane distillation (MD), rather than electric-driven technologies such as reverse osmosis (RO). The examination of different desalination technologies led to the selection of MD for pairing with geothermal energy. MD operates at near-ambient pressure and temperatures less than 100掳C with hydrophobic membranes. The technology is modular like RO, but the equipment costs are lower. The thermal energy demands of MD are higher than MED, but this is offset by an ability to run at lower temperatures and a low capital cost. Consequently, a geothermal-MD system could offer a low capital cost and, if paired with low-cost geothermal energy, a low operating cost. The target product water cost is $1.0 to $1.5 per cubic meter depending on system capacity and the cost of thermal energy.
出版年	2015
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	15 GEOTHERMAL ENERGY geothermal ; desalination ; multi-effect distillation
URL	http://www.osti.gov/scitech/servlets/purl/1227955
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/271226
推荐引用方式 GB/T 7714	Turchi, Craig S. [National Renewable Energy Lab. ,Akar, Sertac [National Renewable Energy Lab. ,Cath, Tzahi [Colorado School of Mines, Golden, CO ,et al. Use of Low-Temperature Geothermal Energy for Desalination in the Western United States,2015.