乳品超高温杀菌换热器环境影响不确定性研究  

Uncertainty analysis of environmental influence of heat exchangers for ultra-high temperature sterilization of dairy products

作　　者：吴海滨 田玮 陈璐[1,2] 晋妙柔 WU Haibin;TIAN Wei;CHEN Lu;JIN Miaorou(Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry&Food Machinery and Equipment,Tianjin 300222,China;College of Mechanical Engineering,Tianjin University of Science and Technology,Tianjin 300222,China)

机构地区：[1]天津市轻工与食品工程机械装备集成设计与在线监控重点实验室,天津300222 [2]天津科技大学机械工程学院,天津300222

出　　处：《包装与食品机械》2022年第1期1-7,共7页Packaging and Food Machinery

基　　金：国家自然科学基金项目(51778416);教育部哲学社会科学研究重大课题攻关项目(16JZD014)。

摘　　要：结合生命周期评价和蒙特卡洛不确定性理论,考虑设计和随机2类参数变化,定量化乳品超高温瞬时杀菌换热器生命周期的环境影响。结果表明,换热管直径增加导致总环境影响变大,环境影响不确定性也变大。管长和管板利用率增大导致总环境影响变小,环境影响不确定性也变小。以上3个因素变化引起换热器筒体公称直径选择不连续性,概率密度函数呈现多峰和交错现象。研究结果为实现绿色低碳的乳品杀菌换热器提供理论依据和设计指导。Life cycle assessment and Monte-Carlo uncertainty theory are combined together to quantify the environmental impact of UHT instantaneous sterilization heat exchanger in its life cycle by considering design and random parameters.The results show that the increase of the diameter of the heat exchange tube led to the increase of the environmental impact and the uncertainty of the environmental impact.The increase of both tube length and tube sheet utilization results in the decrease of total environmental impact and the uncertainty of environmental impact.These three factors led to the discontinuity of the selection of the nominal diameter of the heat exchanger cylinder,and the probability density function presented a multi-peak and staggering phenomena.The results provide theoretical basis and design guidance for the realization of green and low-carbon dairy sterilization heat exchangers.

关 键 词：牛奶 超高温杀菌 列管换热器 生命周期评价 不确定性分析 

分 类 号：TS252.3[轻工技术与工程—农产品加工及贮藏工程]