| 纸机干燥部开式供热系统中喷射式热泵的结构分析 |
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| 引用本文： | 李海军,沈胜强,李素芬. 纸机干燥部开式供热系统中喷射式热泵的结构分析[J]. 中国造纸学报, 2003, 18(2): 133-137 |
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| 作者姓名： | 李海军 沈胜强 李素芬 |
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| 作者单位： | 大连理工大学能源工程研究所,辽宁大连,116024 |
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| 摘 要： | 借助PHOENICS软件平台，通过求解二维N-S方程，模拟分析了喷射式热泵内部复杂的流动情况。从机理上解释了激波形成的条件，及其对喷射式热泵性能的影响。通过调整喷射式热泵结构，避免了吸收室内回流区的形成，从而将喷射系数提高4％。
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| 关 键 词： | 喷射式热泵 开式 喷射系数 机理 回流区 吸收 流动 纸机干燥部 形成 波形 |
| 文章编号： | 1000-6842(2003)02-0133-05 |
| 修稿时间： | 2003-08-01 |
Optimal Design for Ejector Heat Pump Used in a Novel Open-Cycle Paper Machine System |
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| Abstract: | For solving the problem of condensate slugged in drying cylinder,a novel open- cycle paper machine system assisted by ejector heat pump is designed.In order to enhance the COP of the key component of the novel system-ejector heat pump,two -dimensional Navior-Stokes equations are solved to obtain better insight into the ejector's complex flow field.Through analyzing effects of operation paramete r s on the entrainment ratio,the mechanism of the flow in the ejector is developed .COP of the ejector is enhanced about 4% by optimizing its structure. |
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| Keywords: | paper machine drying ejector heat pump CFD |
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