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Data informed physical models for district heating grids with distributed heat sources to understand thermal and hydraulic aspects

机译：数据通知地区供暖网格的物理模型，具有分布式热源，了解热和液压方面

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摘要

The aim of the study was to develop data informed physical models for simulation of district heating (DH) grids for better presentation of hydraulic and thermal aspects in the DH grids integrating heat prosumers. A DH grid organized as a ring and integrating a heat prosumer from a data center was analyzed. In this study, an extensive analysis for thermal and hydraulic aspects of theDH grid considering different configurations of distributed sources was performed. Different configurations for the prosumer connection, the return to return and the return to supply, together with the pressure and temperature control, were investigated. The results showed that increasing the share of renewable heat from the prosumer to the DH grid caused a pressure imbalance in substations close to it. Variable speed pump control was the solution for these issues and it gave up to 34% electricity savings. Lowering temperature levels in the DH network led to a decrease in DH heat losses of up to 14%. The return to supply configuration showed advantages in integrating the prosumer, as regards lower return temperatures and better waste heat utilization. The results indicated the main hydraulic and thermal features of integrating the prosumer in the DH grid.(c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
机译：该研究的目的是开发数据通知的物理模型，用于模拟区域供热（DH）网格，以便更好地呈现DH网格中的液压和热方面，整合热量。分析了作为环的DH网格，并从数据中心整合热法证。在该研究中，考虑了考虑到不同配置的分布源的热量和液压方面的广泛分析。对Prosumer连接的不同配置，研究了返回返回和返回供应以及压力和温度控制。结果表明，将可再生热量与DH电网的可再生热量的份额增加到靠近它的变电站的压力不平衡导致压力不平衡。变速泵控制是这些问题的解决方案，节省了高达34％的电力。降低DH网络中的温度水平导致DH热损失的降低高达14％。随着较低的返回温度和更好的废热利用，返回供应配置在整合法制和更好的废热利用方面表现出优势。结果表明，在DH网格中积分的主要液压和热特征。（c）2021提交人。由elsevier有限公司发布这是CC下的开放式访问文章（http://creativecommomons.org/licenses/by/4.0/）。

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