https://scholars.lib.ntu.edu.tw/handle/123456789/393714
標題: | Development of metrology to estimate energy requirement for water supply systems | 作者: | Lin, C.-Y. CHING-PIN TUNG Hu, M.-C. Tan, C.-C. Liao, W.-T. Chou, C.-H. |
關鍵字: | Climate change; Emergy analysis; Energy; Life cycle; Water resources | 公開日期: | 2015 | 卷: | 63 | 期: | 2 | 起(迄)頁: | 51-62 | 來源出版物: | Taiwan Water Conservancy | 摘要: | The purpose of this study is to establish a framework to estimate direct and indirect energy consumption of a water supply system. Finding a compromise between adaptation and mitigation is the most important task of climate change adaptation strategies. The implementation of adaptation strategies reduce risk of water resources systems but need direct and indirect energy inputs. With higher energy consumption, induces more greenhouse gas emissions, which exacerbate the impact of climate change. Thus the unexpected impacts of adaptation strategies are contrary to the intention of mitigation. This study examines water-energy nexus of water supply systems by emergy analysis method to estimate energy consumption of water supply systems. All inputs of energy and resources of water supply processes were transferred into equivalent unit of solar emergy to access energy flow and to calculate the emergy consumption per unit water supply. A case study of Chengching Lake water supply system is used to evaluate energy consumption and the result shows that energy consumption under water supply processes (including abstraction, treatment, and distribution) is 0.74 kWh/m3. Among the three processes, the distribution needs almost 50% of energy consumption. Considering end use of household water, energy consumption is increased to 4.62 kWh/m3. Moreover, the benefit of water conservation policy is also simulated in this study. It shows that a four-people family can save for 13.6% of total water cost and 2.7% of total electricity cost under water conservation policy. The study suggests that energy consumption can be one of the evaluation indexes to assess adaptation actions. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84937434646&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/393714 |
顯示於: | 生物環境系統工程學系 |
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