Heat transfer analysis of energy and exergy improvement in water-tube boiler in steam generation process

被引：0

作者：

Huawei Wu

Mahdi Hashemi Beni

Iman Moradi

Arash Karimipour

Rasoul Kalbasi

Sara Rostami

机构：

[1] Hubei University of Arts and Science,Hubei Key Laboratory of Power System Design and Test for Electrical Vehicle

[2] Hubei University of Arts and Science,School of Automotive and Traffic Engineering

[3] Islamic Azad University,Department of Mechanical Engineering, Najafabad Branch

[4] Ton Duc Thang University,Laboratory of Magnetism and Magnetic Materials, Advanced Institute of Materials Science

[5] Ton Duc Thang University,Faculty of Applied Sciences

来源：

Journal of Thermal Analysis and Calorimetry | 2020年 / 139卷

关键词：

Energy; Exergy; Water-tube boiler; Saturated steam;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Steam generation is an essential process in steel production. Saturated steam is used in the cold-rolling mills of sample steel company to raise the acid pool temperature. The studied water-tube boiler had a rated saturated steam generation capacity of 47 tons per hour. This study used energy and exergy balance equations for each of the components in the cycle to calculate exergy efficiency and irreversibility rate. Results from the exergy analysis along with the exergy dissipation rate of the cycle were obtained. Based on the literature results, it was recommended to increase the input air temperature by means of a preheater. First, the exergy dissipation in the boiler was reduced by 68 kJ kg−1 with the installation of an economizer. The most important cause of exergy destruction was then presented, and some recommendations were provided on how to increase the temperature of the makeup water in order to increase the boiler efficiency and exergy.

引用

页码：2791 / 2799

页数：8

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