Experimental study on the performance of single screw expanders by gap adjustment
Experimental study on the performance of single screw expanders by gap adjustment
复制标题
间隙调节单螺杆膨胀机性能试验研究
DOI：
10.1016/j.energy.2013.09.031
复制
发表时间：
2013-12
期刊：
影响因子：
9
通讯作者：
Wang, Jing-fu
中科院分区：
文献类型：
--
作者：
Wang, Wei;Wu, Yu-ting;Ma, Chong-fang;Xia, Guo-dong;Wang, Jing-fu
提高原动机的热力效率是低温热源高效利用的关键。单螺杆膨胀机具有许多优点，是一种很好的膨胀机。制造和装配精度是影响单螺杆膨胀机性能的重要因素。本文对单螺杆膨胀机样机的轴效率、容积效率和耗气量进行了测试和讨论。我们已经制造了三个原型与不同的差距，以调查他们的表现。第一原型（A）具有最大间隙，第二原型（B）具有最小间隙，第三原型（C）具有中等间隙配置。给出了样机的实验结果。从样机A的实验数据来看，其输出功率约为5 kW，耗气量在105 kg/kWh以上，容积效率低于20%，轴效率仅为34%。根据原型B的实验数据，质量流率显著降低。功率输出仅为1.4 kW，容积效率略低于原型A。气体消耗率远高于原型A。从原型C的实验数据来看，功率输出约为4.5 kW，但质量流量急剧下降。燃气消耗率约为65 kg/kWh，最大容积效率约为66%，轴效率约为60%。实验结果表明，C型单螺杆膨胀机的综合性能最好，可通过结构优化进一步提高。
Improving thermodynamic efficiency of prime movers is the key issue for efficient utilization of low-temperature heat resources. Single screw expander may be a good candidate because of its many good characteristics. Precisions in manufacture and assembly are very important factors to the performance of single screw expanders. In this paper, the shaft efficiency, volumetric efficiency and gas consumption rate of the single screw expander prototypes were tested and discussed. We have manufactured three prototypes with different gaps to investigate their performance. The first prototype (A) has the largest gap, and the second one (B) has the smallest gap, the third prototype (C) has the medium gap configuration. Experimental result of the prototypes was obtained. From the experimental data of prototype A, the power output was about 5 kW, the gas consumption rate was above 105 kg/kWh and the volumetric efficiency was below 20%, the shaft efficiency was only 34%. From experimental data of prototype B, the mass flow rate was significantly decreased. The power output was only 1.4 kW and the volumetric efficiency was slightly lower than prototype A. The gas consumption rate was much more than that of prototype A. From the experimental data of prototype C, the power output was about 4.5 kW, but the mass flow rate was sharply decreased. The gas consumption rate was about 65 kg/kWh, the maximum volumetric efficiency was about 66%, and the shaft efficiency was about 60%. The experimental results indicated that prototype C of single screw expanders had the best overall performance, which may be further improved by optimizing its configuration.
登录
查看更多内容
影响因子：
6.4
作者：
Guangbin Liu;Yuanyang Zhao;Lian-sheng Li;P. Shu
通讯作者：
Guangbin Liu;Yuanyang Zhao;Lian-sheng Li;P. Shu
影响因子：
9
作者：
S. Declaye;S. Quoilin;L. Guillaume;V. Lemort
通讯作者：
S. Declaye;S. Quoilin;L. Guillaume;V. Lemort
影响因子：
6.4
作者：
Wang, Wei;Wu, Yu-ting;Ma, Chong-fang;Liu, Lin-ding;Yu, Jian
通讯作者：
Yu, Jian
影响因子：
9
作者：
Naijun Zhou;Xiao-yuan Wang;Zhuo Chen;Zhi-qi Wang
通讯作者：
Naijun Zhou;Xiao-yuan Wang;Zhuo Chen;Zhi-qi Wang
DOI：
10.2172/891868
发表时间：
1981-08
期刊：
--
影响因子：
--
作者：
J. Webb;L. J. Mezga;A. W. Reed
通讯作者：
J. Webb;L. J. Mezga;A. W. Reed