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Dynamic Mesh Technology for the Simulation Study of Single Screw Expander
2019Computational fluid dynamics (CFD) methods have been widely used in simulating internal flow of rotary positive displacement type compressors and expanders, especially for twin screw, scroll and rolling piston machines. But it is still lack of CFD research on single screw compressors and expanders due to the difficulty of spacial screw curved surface ...
Lili Shen +5 more
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The Experimental Study on Performance of Single Screw Expander with Air as Working Fluid
Advanced Materials Research, 2013A new single screw expansion machine was developed in order to improve the practical level of low temperature thermal power generation technology and the utilization of waste heat and renewable energy. With compressed air as working fluid, the power, efficiency, gas consumption rate and temperature difference of single screw expander with rotational ...
Jing Fu Wang +3 more
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ASME 2012 6th International Conference on Energy Sustainability, Parts A and B, 2012
Improving thermodynamic efficiency of prime movers is the key issue for efficient utilization of low temperature heat resources. Because of many good characteristics, the single screw expander is perhaps a good choice. Precisions in manufacture and assembly are very important factors to the performance of single screw expanders.
Wei Wang +5 more
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Improving thermodynamic efficiency of prime movers is the key issue for efficient utilization of low temperature heat resources. Because of many good characteristics, the single screw expander is perhaps a good choice. Precisions in manufacture and assembly are very important factors to the performance of single screw expanders.
Wei Wang +5 more
openaire +1 more source
Energy, 2021
Abstract At present, the most prominent technical problems of small and medium capacity expanders are low internal efficiency and small expansion ratio. In order to promote the practical application of small and medium capacity Organic Rankine Cycle (ORC) system, improving the thermodynamic performance of the expander was a remarkable issue, and the ...
Wei Wang +4 more
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Abstract At present, the most prominent technical problems of small and medium capacity expanders are low internal efficiency and small expansion ratio. In order to promote the practical application of small and medium capacity Organic Rankine Cycle (ORC) system, improving the thermodynamic performance of the expander was a remarkable issue, and the ...
Wei Wang +4 more
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Static Finite Element Analysis on Cast Shell of a 100 kW Single Screw Expander
Applied Mechanics and Materials, 2014In the process of shell design of a 100kW single screw expander, the fundamental research on the screw chamber walls thickness is still lacking. Thin wall may cause deformation and the damage possibility of the inlet passage. Thick wall will increase the weight of the expander and led to assembly problem and transportation inconvenience. In this paper,
Qi Liu +5 more
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The influence of lubrication oil on single screw expander operation
International Journal of Refrigeration, 2023Xiaofeng Song +6 more
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Power system study of engine waste heat recovery based on single screw expander
2011 International Conference on Electric Information and Control Engineering, 2011This paper introduces the principle of the engine waste heat recovery system. The organic Rankine cycle (orc) system is proposed to improve the efficiency of waste heat recovery. GT-power software is used to make a DI engine model of 493ZLQ3. The model simulates the exhaust temperature on the brake power curve and brake torque curve based on the ...
Bin Liu +4 more
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Study on the internal irreversible losses and process exponent of single screw expanders
Journal of Mechanical Science and Technology, 2022Lili Shen +5 more
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Performance Analysis of Single Screw Expander Based on Multiple Nonlinear Regression
Applied Physics, 2022openaire +1 more source