Comparative research on air conditioner with gas-injected rotary compressor through injection port on blade

A Novel Vapor Injection Structure on the Blade for Rotary Compressor

Heat pumps with rotary compressors operating in low temperature ambient will face heavy performance degradation. A novel vapor injection structure on the blade for the rotary compressor has been proposed in this paper to overcome the back-flowing drawback of the traditional cylinder injection structure and enlarge the injection area. Based on a verified numerical model, the performance of a rot...

Research On The Properties Of Rotary Compressor Vane Coating

The Temperature Measurement for Rotary Compressor with Oil Injection

As refrigeration compressor manufacturers introduce machineswith improved efficiencies there is a need for updatingperformance data.The compressor performance data which is published should bea true representation of the actual compressor performance,historically this has resulted in lengthy test programmes for thecompressor manufacturer. A system is required which c...

Life Estimate of a Compressor Blade through Fractography

Failure analysis of fractured components provides some information about the causes and conditions of fracture. Fractography is an indispensable part of the failure analysis as it is usually the only means by which the failure mechanism can be established. By using fractography, some information such as component’s life, values of the stress intensity factor and the applied stress can be calcul...

Simulating Cooling Injection Effect of Trailing Edge of Gas Turbine Blade on Surface Mach Number Distribution of Blade

In this research, a gas turbine blade cascade was investigated. Flow analysis around the blade was conducted using RSM and RNG.K-ε turbulence modeling and it is simulated by Fluent software. The results were considered for the cases as Mach number loss at the trailing edge of blade caused by vortexes that were generated at the end of blade. Effect of cooling flow through the trailing edge on th...