干旱区生态环境知识资源中心(Arid): Techno-Economic-Environmental Study for Recovery of Novel Water Source within a Power Plant

Arid

DOI	10.1016/B978-0-12-818634-3.50052-7
	Techno-Economic-Environmental Study for Recovery of Novel Water Source within a Power Plant - Desalination Complex
	AlNouss, Ahmed; Eljack, Fadwa
通讯作者	Eljack, F (corresponding author), Qatar Univ, Coll Engn, Dept Chem Engn, Doha, Qatar.
会议名称	29th European Symposium on Computer-Aided Process Engineering (ESCAPE)
会议日期	JUN 16-19, 2019
会议地点	Eindhoven, NETHERLANDS
英文摘要	The global water supply is at an already critical level; around 3.9 billion people (47% of the world population) will be subject to water stress in 2050, according to the Organization for Economic Co-operation and Development (OECD). Unless advanced and alternative technology solutions are applied, construction of desalination facilities will continue to rise, leading to higher CO2 emissions. While desalination allows for the production of water from highly saline sources, it is considered an energy intensive process that is largely powered by fossil fuel sources. The natural interconnections between water and energy known as water-energy nexus has been widely recognized for desalination facilities; yet, there are tremendous amounts of cooling water that are still needed for condensing steam in the thermoelectric Rankine cycle to produce electricity; and large amounts of energy are typically required to transport and treat the water. For example, over 45 thousand cubic meter per hour of water are required to run a 500 MW power plant, for cooling and other process requirements. Moreover, large amounts of water vapour exit in the effluent flue gas from the combustion process. The amount of water that can be recovered from the flue gas is sufficient to substantially reduce the need for freshwater make-up. This represents a promising opportunity to exploit synergies among water and energy systems specifically for arid regions. In this paper, the aim is to identify suitable water recovery (dehydration hybrid) technologies that are capable of maximizing the recovery of water from flue gas in gas fired power plant-desalination plant coupled system. Specifically, compression and cooling, quenching, membrane separation and absorption alternatives are studied. The capacity of the power plant, the capacity of the desalination plant, fuel consumption of the power plant and energy requirement of the desalination facility are known. This work studies the technical, environmental and economic competing objectives when integrating the dehydration hybrid technology within the desalination-power plant complex. In this paper, the results for all the considered alternatives will be presented in terms of water recovery, energy savings, emissions reduction and economic indicators. The integrated low pressure quenching water recovery alternative has shown promising results, with up to 42% water recovery, while the integrated low pressure absorption alternative has demonstrated the highest figure in energy savings and emissions reduction with around 37%. These results can aid the decision on the suitable water recovery alternative to be used in the integrated energy-water complex.
英文关键词	Energy-Water Nexus Desalination Flue gas Gas-fired power plant Techno-Environmental-Economic Analysis
来源出版物	29TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING, PT A
ISSN	1570-7946
出版年	2019
卷号	46
页码	307-312
ISBN	978-0-12-819939-8; 978-0-12-819939-8
出版者	ELSEVIER SCIENCE BV
类型	Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000495447200052
WOS关键词	FLUE-GAS ; HEAT
WOS类目	Computer Science, Interdisciplinary Applications ; Engineering, Chemical
WOS研究方向	Computer Science ; Engineering
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/370172
作者单位	[AlNouss, Ahmed; Eljack, Fadwa] Qatar Univ, Coll Engn, Dept Chem Engn, Doha, Qatar
推荐引用方式 GB/T 7714	AlNouss, Ahmed,Eljack, Fadwa. Techno-Economic-Environmental Study for Recovery of Novel Water Source within a Power Plant - Desalination Complex[C]:ELSEVIER SCIENCE BV,2019:307-312.

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