Optimal piping design for enhanced energy saving in district cooling system - A case study

Chia Yen Lee, Ming Tsun Ke, Chin Lung Chang, Chien Hsiung Tsai, Lung Ming Fu, Chiu Feng Lin

研究成果: Conference contribution

摘要

This study performs a numerical investigation into the power consumption characteristics of various primary-secondary chilled water circuit designs in a district cooling system (DCS) installed in six buildings located within the same block in Taipei, Taiwan. An E20-II model is created of the DCS and a series of simulations are performed to determine the primary-secondary chilled water piping design which maximizes the energy saving obtained in the DCS over the course of a typical year. It is shown that the use of a region-pumping system or a boost-pumping system reduces the power consumption of the secondary chilled water circuit by 26.5% and 29.9%, respectively, compared to that of a common-pumping system. In addition, the results show that for a practical chilled water system in which the temperature differential on the primary side is 5.0°C while that on the secondary side is 6.5°C, an average monthly energy saving of around 5∼7% is obtained compared to a DCS with equal temperature differentials in the primary-secondary circuits provided that the flow rate and the temperature differential of the chilled water in the primary circuit are a little less than those in the secondary circuit.

原文English
主出版物標題Progress in Power and Electrical Engineering
頁面744-752
頁數9
DOIs
出版狀態Published - 2012
事件2011 International Conference on Energy, Environment and Sustainable Development, ICEESD 2011 - Shanghai, China
持續時間: 2011 10月 212011 10月 23

出版系列

名字Advanced Materials Research
354-355
ISSN(列印)1022-6680

Other

Other2011 International Conference on Energy, Environment and Sustainable Development, ICEESD 2011
國家/地區China
城市Shanghai
期間11-10-2111-10-23

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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