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R32家用变频空调器制冷剂充注量优化 被引量:3
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作者 唐亚林 舒碧芬 杨瑞林 《制冷与空调》 2018年第6期37-40,66,共5页
采用R32对R410A家用变频空调器进行直接充注式替代,测试R32不同充注量下空调器的制冷和制热性能。研究结果表明,当R32充注量为R410A充注量的74%时,空调器的APF提升6.4%,高温制冷能效比最高提升4.3%,高温制冷能力提升6.9%;超低温制热性... 采用R32对R410A家用变频空调器进行直接充注式替代,测试R32不同充注量下空调器的制冷和制热性能。研究结果表明,当R32充注量为R410A充注量的74%时,空调器的APF提升6.4%,高温制冷能效比最高提升4.3%,高温制冷能力提升6.9%;超低温制热性能系数最高提升2.4%,超低温制热能力提升1.8%。 展开更多
关键词 R32 充注量优化 APF 高温制冷 超低温制热
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菲涅耳透镜下多结电池表面局部高辐射功率对短路电流的影响
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作者 江景祥 舒碧芬 +3 位作者 梁齐兵 黄妍 崔高峻 喻祖康 《半导体光电》 CAS 北大核心 2020年第4期494-499,504,共7页
为探索以菲涅耳透镜为聚光器的聚光光伏模组中,多结电池中心局部高辐射功率对短路电流的影响,测量菲涅耳透镜的高亮度光斑直径,并据此分别测试室内不同局部光照面积下和户外不同尺寸透镜下的GaInP/GaInAs/Ge三结电池的短路电流,利用电... 为探索以菲涅耳透镜为聚光器的聚光光伏模组中,多结电池中心局部高辐射功率对短路电流的影响,测量菲涅耳透镜的高亮度光斑直径,并据此分别测试室内不同局部光照面积下和户外不同尺寸透镜下的GaInP/GaInAs/Ge三结电池的短路电流,利用电路网络模型分析实验结果。结果表明,短路电流与局部聚光的面积无关;小尺寸菲涅耳透镜聚焦下,沿光轴电流与辐射功率同步变化;透镜尺寸增大到一定程度,电池中心局部承受过高辐射功率,电流受峰值隧穿电流限制,宏观体现为焦平面处短路电流下降。电池放置在焦平面两侧,均可缓解局部高辐射功率,短路电流最高提升8.0%。 展开更多
关键词 聚光光伏模组 菲涅耳透镜 多结电池 局部高辐射功率 短路电流 峰值隧穿电流
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HFC-134a refrigerant gas hydrate formation process and RIN model
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作者 ZHAO Yongli QUO Kaihua +3 位作者 LIU Xiaocong FAN shuanshi shu bifen GE Xinshi 《Chinese Science Bulletin》 SCIE EI CAS 2001年第17期1425-1430,共6页
In this paper, the macroscopic visualization experiments of HFC-134a refrigerant gas hydrate formation are investigated. According to the macroscopic photos and Mori’s microscopic photos of HFC-134a hydrate formation... In this paper, the macroscopic visualization experiments of HFC-134a refrigerant gas hydrate formation are investigated. According to the macroscopic photos and Mori’s microscopic photos of HFC-134a hydrate formation process, the mechanism of gas hydrate formation is analyzed. A random inducement nucleation model is presented to describe the hydrate formation process. The factors affecting the fractal growth dimension in the model, such as step, branch increment and angle, are discussed. 展开更多
关键词 REFRIGERANT gas hydrate crystallization FORMATION process PHOTOS RIN model.
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Effects of magnetic fluids on crystallization characterizations in a multi-component and multiphase system
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作者 shu bifen SHEN Hui +3 位作者 CHEN MeiYuan XIA JianHan WANG Xiang SUN JianWei 《Science China Chemistry》 SCIE EI CAS 2008年第4期347-353,共7页
In this study, experiments are carried out on the effects of magnetic fluids on the crystallization char- acterizations in a multi-component and multiphase system, which contains the liquid and the vapor of HCFC141b, ... In this study, experiments are carried out on the effects of magnetic fluids on the crystallization char- acterizations in a multi-component and multiphase system, which contains the liquid and the vapor of HCFC141b, water, water vapor, and gas hydrates. The mass transfer phenomena between the phase interfaces of water-HCFC141b and water-vapor are also researched. The experimental results show that in the presence of a rotary magnetic field, magnetic fluids can remarkably enhance the heat and mass transfer between phase interfaces and, therefore, improve the performance of crystallization, especially in improving the formation temperature and velocity. 展开更多
关键词 magnetic liquid MULTIPHASE CRYSTALLIZATION characterization heat and MASS TRANSFER
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