论坛时间:2017年11月5-7日论坛时间:2017年11月5-7日
2007年11月5日至7日,来自澳大利亚、美国、加拿大、日本、匈牙利、中国等国家的近百名农业科学家聚会中国杨凌,以“国际农业合作、创新与发展”为主题,就旱区农业与节水农业、高效畜牧业与动物疾病防控、食...
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2017 首页» 杨凌国际农业科技论坛» 论文摘要» 2017

  Jiajia Chen

  Department of Food Science and Technology, University of Nebraska-Lincoln, USA

  Multiphysics based computer simulation models could help improve the understanding of food processing to increase the efficiency of food product development, process design, and equipment design for improving food quality and safety. This presentation will discuss several case studies of using multiphysics modeling in electromagnetic heating technology to develop microwaveable food products, radio frequency heating processes, and microwave systems. The current status, limitations, and future needs of these models are discussed. The material properties (dielectric properties and thermal properties) and geometry of the food products and system are provided as input into the models. The governing equations of electromagnetics, heat transfer, mass transfer, phase change of melting and vaporization, etc. are physics setup in these models. The fiber optic sensors, thermal image camera, and chemical markers are used as tools for validating the models. Current multiphysics models could provide a better understanding of the processing, but are not accurate enough to predict exact heating performance of electromagnetic heating. The models need to be improved by providing better properties, geometry, and physics understanding, for better prediction. These models also need to be developed as easy to use platforms/tools to be used by the food scientists who do not have much modeling background in the food industry.

Multiphysics modeling of food processing of electromagnetic heating for improving food safety and quality
发布时间:2017-12-27


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