Performance optimization of turboexpander-compressors for energy recovery in small air-separation plants
In this paper, a reverse-bootstrap turboexpander-compressor (TEC) scheme is proposed for
the direct recovery of expansion work into the cooling capacity of small air-separation plants …
the direct recovery of expansion work into the cooling capacity of small air-separation plants …
Analysis of vortex characteristics and energy losses in a cryogenic hydrogen turbo-expander for a 5 t/d hydrogen liquefier
X Li, K Zhang, J Li, Z OuYang, T Shi - International Journal of Hydrogen …, 2024 - Elsevier
The cryogenic hydrogen turbo-expander (CHTB) is the most core component which
determines the dependability and efficiency of hydrogen liquefiers. In present study, CFD …
determines the dependability and efficiency of hydrogen liquefiers. In present study, CFD …
Experimental and numerical approach for characterization and performance evaluation of cryogenic turboexpander under rotating condition
A small-scale radial expansion turbine is distinguished by its ease of production, higher
efficiency, and reliability. Such turbines have been successfully used in cryogenic …
efficiency, and reliability. Such turbines have been successfully used in cryogenic …
A comparative investigation of thermodynamic performance and flow field structure of a modified Collins cycle-based helium turboexpander system
M Kumar - International Communications in Heat and Mass …, 2021 - Elsevier
The optimum design of radial expansion turbine and nozzle (turboexpander) have a
remarkable effect on the thermophysical performance of gas liquefaction cycles. The present …
remarkable effect on the thermophysical performance of gas liquefaction cycles. The present …
Parametric design optimization and thermodynamic analysis of plate fin heat exchanger for helium liquefaction system
M Kumar, S Pal, D Patil - Cryogenics, 2024 - Elsevier
The plate-fin heat exchanger is one of the most important components of helium liquefaction
system as it recovers cold energy from helium gas in the cold box. Because of larger heat …
system as it recovers cold energy from helium gas in the cold box. Because of larger heat …
A re-liquefaction process of LNG boil-off gas using an improved Kapitsa cycle: eliminating the BOG compressor
Re-liquefication of boil-off gas (BOG) from liquefied natural gas is essential for maintaining
LNG tank safety and facilitating methane recovery. This study aims to reduce the energy …
LNG tank safety and facilitating methane recovery. This study aims to reduce the energy …
Optimization of coalbed methane liquefaction process based on parallel nitrogen reverse Brayton cycle under varying methane contents and liquefaction ratios
The recovery of coalbed methane (CBM) is of significance in preventing coal mining
accidents, environmental protection, and energy conservation. Liquefying natural gas …
accidents, environmental protection, and energy conservation. Liquefying natural gas …
High-efficiency control strategies of a hydrogen turbo-expander for a 5 t/d hydrogen liquefier
Liquid hydrogen plays a crucial role in the large-scale storage and long-distance
transportation of hydrogen energy. Effectively controlling hydrogen turbo-expanders is an …
transportation of hydrogen energy. Effectively controlling hydrogen turbo-expanders is an …
Optimal design of thermal performance of an orifice pulse tube refrigerator
D Panda, M Kumar, AK Satapathy… - Journal of Thermal …, 2021 - Springer
In this paper, simultaneous influence of low and high pressure of helium compressor,
frequency, opening coefficient of orifice valve and waiting time of rotary valve on the cooling …
frequency, opening coefficient of orifice valve and waiting time of rotary valve on the cooling …
A methodology for performance prediction: aerodynamic analysis of axially loaded gas foil bearing
As a major component of any high rotating turbomachinery to withstand an axial load of the
system while providing stability to the rotor, gas foil thrust bearing (axial bearing) should be …
system while providing stability to the rotor, gas foil thrust bearing (axial bearing) should be …