Results 61 to 70 of about 12,399 (244)
Efficiency improvement of compressor for refrigerator using 1D CAE and 3D CAE
This paper describes a new approach to improve compressor efficiency by using 1D CAE and 3D CAE. First, a 1D simulation model of a reciprocating compressor is proposed and the compressor efficiency is analyzed.
Shuhei NAGATA, Tomohiro NAGAO
doaj +1 more source
Existing soft pumps often require tradeoffs between performance and compatibility with soft robotic systems. The proposed trielectrode electrostatic soft pump addresses these limitations through an innovative driving mechanism. Its design, which includes a trielectrode configuration and the use of compliant materials, improves operational efficiency ...
Yangqiao Lin +10 more
wiley +1 more source
Dynamic characteristic analysis of crank connecting rod mechanism in star-type air compressor
[Objectives] Compared with other types of air compressor, reciprocating compressors can obtain compressed air with a higher pressure, exerting more stress on the crank connecting rod mechanism.
LI Chaobo +3 more
doaj +1 more source
A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn +5 more
wiley +1 more source
Stirling cycle cryogenic cooler [PDF]
A long lifetime Stirling cycle cryogenic cooler particularly adapted for space applications is described. It consists of a compressor section centrally aligned end to end with an expansion section, and respectively includes a reciprocating compressor ...
Daniels, A. +4 more
core +1 more source
Droplet microfluidics: Enabling the tailored fabrication of hydrogel particles
Droplet microfluidics enables precise, versatile fabrication of hydrogel particles with controlled size, composition, and structure. This review summarizes fundamental principles, engineering strategies, and emerging applications, providing a framework for advancing microfluidic hydrogel technologies.
Zhongqiao Gan, Xu Hou
wiley +1 more source
Motor current signal analysis using a modified bispectrum for machine fault diagnosis [PDF]
This paper presents the use of the induction motor current to identify and quantify common faults within a two-stage reciprocating compressor. The theoretical basis is studied to understand current signal characteristics when the motor undertakes a ...
Ball, A +4 more
core
A review of linear compressors for refrigeration [PDF]
Linear compressor has no crank mechanism compared with conventional reciprocating compressor. This allows higher efficiency, oil-free operation, lower cost and smaller size when linear compressors are used for vapour compression refrigeration (VCR ...
Liang, Kun
core +1 more source
An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system
The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand +5 more
wiley +1 more source
Dynamic cracking properties and generating conditions of coal under rapid gas release
Gas release tests revealed that crack initiation and propagation are jointly controlled by initial crack length, residual strength, and gas release velocity. A new outburst risk coefficient was thus developed from a fracture mechanics perspective, offering a novel predictive approach.
Bing Zhang +6 more
wiley +1 more source

