THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Qihui Yu

,

Shengyu Gao

,

Guoxin Sun

,

Ripeng Qin

EXPERIMENTAL INVESTIGATION ON THE PERFORMANCE OF COMPRESSED AIR ENERGY STORAGE USING SPRAY-BASED HEAT TRANSFER

ABSTRACT
Near-isothermal compression and expansion may be accomplished by injecting water droplets into the air during the process to increase the overall efficiency. However, little is known about the relationship between spray system parameters and compressed air energy storage (CAES). Furthermore, the experiments about CAES using spray-based heat transfer have not been investigated. The aim of this paper is to study the relationship between the performance of CAES and the spray system parameters by experimentally. The parameters including the spray closing time, the spray opening time, and the nozzle diameter are discussed. Results show that under the same operating conditions, the maximum air pressure in compression chamber reach to constant value when the spray closing time is 0.6 seconds, and spraying water mist within 0.6-1.2 seconds has no heat exchange effect on the air in the cylinder. During the compression process, the smaller the nozzle diameter is, the higher maximum pressure in compression chamber is. During the expansion process, if we ignore the energy consumption of spray system, the larger the nozzle diameter is, the more the expansion output is. Further investigation is recommended to optimize spray parameters based on different CAES systems.
KEYWORDS
compressed air energy storage system, spray-based heat transfer, the spray closing time, the spray opening time, the nozzle diameter
PAPER SUBMITTED: 2023-11-22
PAPER REVISED: 2024-01-17
PAPER ACCEPTED: 2024-01-22
PUBLISHED ONLINE: 2024-04-14
DOI REFERENCE: https://doi.org/10.2298/TSCI231122085Y
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 5, PAGES [3675 - 3685]
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Experimental investigation on the performance of compressed air energy storage using spray-based heat transfer

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence