Design and Simulation Analysis of Cold (Heat) Water Storage System in Large Energy Station

Hongsheng SONG

doi:10.16513/j.2096-2185.DE.1901088

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Distributed Energy ›› 2020, Vol. 5 ›› Issue (2) : 46-51. DOI: 10.16513/j.2096-2185.DE.1901088

Application Technology

Design and Simulation Analysis of Cold (Heat) Water Storage System in Large Energy Station

Hongsheng SONG

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Abstract

In order to evaluate and verify whether the cold (heat) water storage system in a distributed multi-energy coupled energy station system fully meets the design requirements, according to the 24 hours hourly fluctuating cooling and heating load demand on typical design days, the evaluation calculation of the key technical indicators (Reynolds number, Froude number, energy storage tank efficiency, etc.) related to the water storage system are carried out. The professional CFD software is used to simulate and verification the current sharing effect of the water distributor and the change of temperature distribution in the water storage tank. The multi-energy coupled system consists of gas-fired internal combustion generator sets, waste heat recoverable lithium bromide chillers, screw ground source heat pump units, chilled water thermal and water heat storage tank, 10 kV centrifugal electric refrigeration units and vacuum gas-fired hot water boilers. The results of evaluation calculation and simulation analysis show that the various parameters of the water distributor of the energy storage system and the energy storage efficiency can fully meet the design requirements.

Key words

energy station / chilled water thermal and water heat storage / evaluation calculation / simulation verification / cold and heat storage efficiency / CFD simulation

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Hongsheng SONG. Design and Simulation Analysis of Cold (Heat) Water Storage System in Large Energy Station[J]. Distributed Energy Resources. 2020, 5(2): 46-51 https://doi.org/10.16513/j.2096-2185.DE.1901088

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