期刊
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
卷 129, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.icheatmasstransfer.2021.105674
关键词
Non-equilibrium condensation; Hot-steam injection; Optimization; TOPSIS
This study optimized the hot steam injection variables to improve the efficiency and performance of industrial equipment.
Nowadays, one of the concerns of the searchers is the increasing performance of industrial equipment. The phenomenon of spontaneous non-equilibrium condensation and the presence of droplets have caused efficiency and economic losses for industrialists. The hot steam injection causes reduction of the averaged radius droplets, liquid mass fraction, and erosion. In this study, an optimization analysis of the hot steam injection variables (location, angle, and width slots of injection) according to LKLEE criterion (Liquid mass fraction, Kinetic energy, Losses, Entropy, and Efficiency) has been performed by TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution). Results show injecting at the Optimal mode has the highest kinetic energy and efficiency and less entropy. Also, Optimal mode is resulted a 1.05% increase of the Mach number than Original mode. Therefore, injection of hot steam at Optimal mode is caused a 9%, 60%, and 7.1% reduction in the droplet radius, losses, and liquid mass fraction compare to the Original mode, respectively. Overall, this optimal injection leads to the increased energy efficiency of industrial equipment at the output.
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