The challenge of integrating non-continuous processes - milk powder plant case study

JOURNAL OF CLEANER PRODUCTION

卷:18

Article; Proceedings Paper

Atkins, Martin J.¹  Walmsley, Michael R. W.¹  Neale, James R.¹ 

[1] Univ Waikato, Sch Sci & Engn, Energy Res Grp, Hamilton 3240, New Zealand

关键词: Waste heat recovery;    Pinch analysis;    Process integration;    Thermal storage;   

DOI  :  10.1016/j.jclepro.2009.12.008

来源: Elsevier

【 摘 要 】

The integration of non-continuous processes such as a milk powder plant presents a challenge for existing process integration techniques. Current techniques are generally based on steady and continuous operation which for some industries is not the case. Milk production varies considerably during the year as dairy cows in New Zealand are grazed on pasture. In this paper the potential for indirect heat transfer between the several plants using a heat recovery loop and stratified tank at a typical New Zealand dairy factory is investigated. The maximum amount of heat recovery is calculated for a range of recirculation loop temperatures. The maximum amount of heat recovery can be increased considerably if the temperature of the hot fluid in the recirculation loop is varied depending on which condition the site is operating under. (C) 2009 Elsevier Ltd. All rights reserved.

【 授权许可】

Free