Food Properties and Heat Transfer
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本场研讨会主讲嘉宾之一
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8月23日下午1：00-5：30，主题为"Food Properties and Heat Transfer"在北京国际会议中心311-B会议室召开。
演讲内容摘要：
Effective thermal conductivity predictions for frozen products require both an ice fraction model and an effective thermal conductivity model; hence there are two degrees of freedom when comparing model predictions to experimental data for real foods,which can lead to misleading conclusions. To avoid ice fraction prediction uncertainties,thermal conductivity was measured for two types of ice samples (ice chips produced by a commercial ice maker,and synthetic snow) in which the ice and air fractions were controlled. Levy’s effective thermal conductivity model provided reasonable predictions for the ice-chip data,although greater accuracy was obtained using a composite effective medium theory and co-continuous model. The Maxwell-Eucken model provided reasonable predictions for the synthetic snow data; however,systematic error in these measurements may have been significant.
演讲PPT（之一）
第22届国际制冷大会于2007年8月21日在北京国际会议中心隆重召开，会议为来自世界各地的科学家和工程师提供一个互相交流和分享各自成功经验的机会，以使制冷技术在今后几十年保持持续快速的发展。
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