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都市域における下水管路網を活用した下水熱利用・熱融通システムの研究 (第11報) 未処理下水中における伝熱管の汚れに対する下水温度・流速の影響
Study of the System for Accommodating Thermal Energy by Using Sewage Water Pipeline (Part11) Influence of sewage temperature and flow rate for fouling of heat exchanger tubes in an untreated sewage
2014
Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers of Japan
Study of the System for Accommodating Thermal Energy by Using Sewage Water Pipeline (Part11) Influence of sewage temperature and flow rate for fouling of heat exchanger tubes in an untreated sewage
Preserved Fulltext
In the process of thermal recovery from sewage waste heat, the attachment of biolfilm to the heat exchanger causes a reduction in efficiency. In this research, experiments were done in untreated sewage pipelines to determine the initial heat transfer coefficient and its change over time as well as the fouling factor. Using data from autumn, winter and summer; a model for the fouling factor considering sewage velocity and temperature was developed.
doi:10.18948/shasetaikai.2014.10.0_5
fatcat:2lhtqoy3dbgklfc3hmto4q5scu