Investigation of the Effects of Different Working Fluids on Compressor Cascade Performance
Source abstract
Abstract
The compressor of closed Brayton cycle (CBC) plant operating with working fluid other than air is a vital element of the energy conversion unit. However, due to insufficient understanding of the influence of the physical properties of working fluids on the performance of the compressor, the actual working conditions and design conditions of the compressor’s performance deviate greatly. In this paper, the objective is to analyze the influence mechanism of the physical properties on the performance of the cascade of compressor (static pressure ratio and total pressure loss coefficient). Therefore, the impact of a specific heat ratio on the performance of the compressor cascade is studied utilizing carbon dioxide (γ = 1.29), air and carbon monoxide (γ = 1.4), argon and helium (γ = 1.667). Moreover, the relationships of static pressure ratio and total pressure loss coefficient with physical properties of the working fluids are analyzed in the compressor cascade. It is established that a higher specific heat ratio fluid gives a higher coefficient of total pressure loss and static pressure ratio in contrast to smaller specific heat ratio at matching inlet Reynolds number and Mach number.
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Research context
OpenAlex topics: Refrigeration and Air Conditioning Technologies · Turbomachinery Performance and Optimization · Thermodynamic and Exergetic Analyses of Power and Cooling Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Naval Architecture & Ocean Engineering College, Dalian Maritime University, Dalian 116000, China
College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
Funding
National Natural Science Foundation of China
References (21)
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