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气流喷射式流化床干燥器传热状况的研究 被引量:1
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作者 秦玉尧 傅琴 《农业机械学报》 EI CAS CSCD 北大核心 1999年第2期71-74,共4页
通过对带加热夹套的气流喷射式流化床干燥器进行传热机制理论分析和相应的试验研究,结果表明,采用圆筒形带加热夹套的底可显著提高这种干燥器的传热系数。
关键词 气流喷射式 干燥器 传热系数
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Experimental investigation of an adjustable ejector for CO_2 heat pump water heaters 被引量:3
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作者 Guang-ming CHEN Li-xia LIANG Li-ming TANG Xiao-xiao XU Zhi-jiang ZHU Qi CHEN 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2009年第11期1678-1682,共5页
An adjustable ejector expansion device for a CO2 heat pump water heater (HPWP) is proposed to improve the system performance. It has been designed to investigate experimentally the effects of the motive nozzle throat ... An adjustable ejector expansion device for a CO2 heat pump water heater (HPWP) is proposed to improve the system performance. It has been designed to investigate experimentally the effects of the motive nozzle throat area of the ejector, entrained flow pressure, back pressure and primary flow pressure on the entrainment ratio. Experiments based on different motive nozzle throat areas were conducted and the results of the prototype ejector using CO2 as working fluid are presented. The results show that an adjustable ejector can achieve high performance and work well in a wide range of working conditions. 展开更多
关键词 Adjustable elector System nerformance CO2 heat oumo water heater (HPWH) Entrainment ratio
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