摘要
研究了在不同冷凝温度下平板速冻用两相射流泵的工作性能,分析了冷凝温度对模拟食品的冻结速率和平板速冻机系统总能耗的影响。通过改变冷凝温度,在稳定工况下测试引射系数,探究对射流泵性能的影响。结果表明:冷凝温度25℃时,引射系数最大为1.58,系统能耗比冷凝温度30,40℃时分别降低3.3%和10%,冻结速率提高12.5%和17.5%。
The working performance of plate freezer with two-phase ejector in different condensing temperature was investigated in this study. Moreover, the effects of condensing temperature on freezing rate and total energy consumption of plate freezer was also studied. Then the entrainment coefficient in stable conditions and explores the effects on Jet pumps were analyzed by changing the condensing temperature. The results showed that when the condensing temperature was 25 ℃, the ejecting coefficient was the highest about 1.58. Compared with 40 ℃ and 30 ℃, the energy consumption was lowered by about 3.3% and 10℃ at 25 ℃, and the freezing time was shorten by about 12.5% and 17.5%,respectively.
出处
《食品与机械》
CSCD
北大核心
2016年第11期71-73,共3页
Food and Machinery
基金
国家高技术研究发展计划(编号:2012AA092301)
关键词
平板速冻机
食品冷冻
冷凝温度
射流泵
冻结速率
能耗
plate freezer
frozen food
condensingtemperature
ejector freezing-rate energyconsumption
