Analysis of a heat recovery system of the spray-drying process in a soy protein powder plant

被引：19

作者：

Ai, Songhui ^{[1
]}

Wang, Baolong ^{[1
]}

Li, Xianting ^{[1
]}

Shi, Wenxing ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Architecture, Dept Bldg & Sci, Beijing 100084, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2016年 / 103卷

基金：

中国国家自然科学基金;

关键词：

Spray drying; Heat recovery system; Heat pump; Annual performance; Economic analysis; PROCESS INTEGRATION; ENERGY RECOVERY; OPTIMIZATION; SIMULATION; INDUSTRY; DRYERS; AIR;

D O I：

10.1016/j.applthermaleng.2016.04.108

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Spray drying for particulate products is an energy-intensive process. To decrease energy consumption, an effective heat recovery system for a soy protein powder plant is proposed in this,paper. A water loop with heat pump is employed to recover the waste heat of the exhaust air to preheat the inlet ambient air for spray drying and space heating during the heating season. Operating performance of the heat recovery system in a whole year is calculated, and economic analysis is conducted based on the calculation results. As a result, it is found that the heat recovery system could reach 21.3% energy-saving amount compared to the traditional spray drying system. And the static payback period of the heat recovery system is around 2.4 years. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：1022 / 1030

页数：9

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