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标题：Comparative life-cycle cost and GHG emission analysis of five different water heating systems for residential buildings in Australia
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作者：Nallapaneni Manoj Kumar ; Mobi Mathew
期刊名称：Beni-Suef University Journal of Basic and Applied Sciences
印刷版ISSN：2314-8535
电子版ISSN：2314-8543
出版年度：2018
卷号：7
期号：4
页码：748-751
DOI：10.1016/j.bjbas.2018.11.001
语种：English
出版社：Elsevier
摘要：Highlights•Five different types of water heating systems are analyzed.•Life cycle cost assessment for electric, natural gas, and heat pump water heating systems.•Greenhouse gas (GHG) emissions from electric, natural gas, and heat pump water heating systems.•Provide an option for selecting the best water heater based on individual requirements.AbstractIn this paper, five different types of water heating systems namely electric instantaneous, electric storage, natural gas instantaneous, natural gas storage, and heat pump are studied for Australian conditions. The study is carried out for understanding the life cycle cost of each system under similar water demand conditions. The focus is made on life-cycle cost (LCC) that include the running costs on an annual basis, and total running cost for the system life, maintenance cost; and greenhouse gas (GHG) emissions. The observations reveal that five systems had major differences in the upfront cost, running cost, and life-cycle cost, and GHG emissions. The observed LCC and GHG emissions for electric instantaneous, electric storage, natural gas instantaneous, natural gas storage, and heat pump are 9005 AU$, 12,724 AU$, 6955 AU$, 7479 AU$, and 8098 AU$, and 1862 tons of CO2, 2306 tons of CO2, 851 tons of CO2, 917 tons of CO2, and 842 tons of CO2respectively.
关键词：Solar water heater;Life-cycle cost;Heat pump;Gas heated water;Electrically heated water;GHG emissions from water heating