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Investigation of flow characteristics in a single screw expander: A numerical approach
Energy, 2020The efficiency of an Organic Rankine Cycle (ORC) system is heavily influenced by the expander performance. Low to medium size (between 1 and 500 kW) ORC systems are usually equipped with volumetric expanders which are often modified positive displacement
N. Casari +5 more
semanticscholar +5 more sources
Applied Thermal Engineering, 2021
The output characteristics of single screw expander has a direct and crucial influence on the performance of organic Rankine cycle (ORC) system. In this paper, a machine learning prediction model driven by experimental data is developed and applied to ...
Xu Ping +8 more
semanticscholar +3 more sources
The output characteristics of single screw expander has a direct and crucial influence on the performance of organic Rankine cycle (ORC) system. In this paper, a machine learning prediction model driven by experimental data is developed and applied to ...
Xu Ping +8 more
semanticscholar +3 more sources
Preliminary experimental study of single screw expander prototype
Applied Thermal Engineering, 2011Abstract Efficient heat conversion of low temperature heat source is a key problem for energy saving, especially in the fields of waste heat recovery and renewable energy utilization. At present, technical bottleneck for low temperature thermal power is lack of suitable prime mover.
Wei Wang +4 more
openaire +3 more sources
Energy, 2020
This paper focused on the intake and exhaust structure optimization of a single-screw expander (SSE) by using numerical method. The effects of internal volume ratio, the shape and clearance height of the intake port and exhaust area were numerically ...
Zhiyu Guo +6 more
semanticscholar +3 more sources
This paper focused on the intake and exhaust structure optimization of a single-screw expander (SSE) by using numerical method. The effects of internal volume ratio, the shape and clearance height of the intake port and exhaust area were numerically ...
Zhiyu Guo +6 more
semanticscholar +3 more sources
Energy, 2019
Single-screw expander (SSE) has the potential to meet the high pressure ratio condition in small-scale middle temperature ORC system. In this paper, variable internal volume ratio (from 3.00 to 8.00), new methods for calculating mass flow rate and ...
Yu-ting Wu +4 more
semanticscholar +3 more sources
Single-screw expander (SSE) has the potential to meet the high pressure ratio condition in small-scale middle temperature ORC system. In this paper, variable internal volume ratio (from 3.00 to 8.00), new methods for calculating mass flow rate and ...
Yu-ting Wu +4 more
semanticscholar +3 more sources
Performance study on compressed air refrigeration system based on single screw expander
Energy, 2013Abstract A new kind of expanders, called as single screw expander, has been developed by our team and applied to refrigeration systems. The present paper is to determine experimentally the refrigeration performance of a compressed air refrigeration system which is based on a single screw expander with 175 mm diameter rotor.
Yuanwei Lu +5 more
openaire +3 more sources
Experimental study on the performance of single-screw expander with different inlet vapor dryness
Applied Thermal Engineering, 2015Abstract A single-screw expander with 155 mm diameter screw has been developed. In order to investigate the performance of this prototype with different inlet vapor dryness, an organic Rankine cycle experimental system was built, and experiments were conducted at different inlet vapor dryness by adjusting the mass flow rate of working fluid into ...
G. Xia +6 more
semanticscholar +4 more sources
The influence of lubrication oil on single screw expander operation
International Journal of Refrigeration, 2023Xiao-tong Song +6 more
semanticscholar +2 more sources
Energy, 2018
The present paper experimentally investigates the thermal performances of an Organic Rankine Cycle (ORC) using a self-developed single screw expander. Experiments were conducted to study the net efficiency of the ORC under different cooling water flows ...
Yingbo Zhao +6 more
semanticscholar +3 more sources
The present paper experimentally investigates the thermal performances of an Organic Rankine Cycle (ORC) using a self-developed single screw expander. Experiments were conducted to study the net efficiency of the ORC under different cooling water flows ...
Yingbo Zhao +6 more
semanticscholar +3 more sources