Estimation of non-equilibrium heat transfer losses in a reciprocating compressor

Abstract

In this study, mathematical and analytical models were used to estimate heat and energy losses in piston compressors under unbalanced heat transfer conditions. Thermodynamic equations

and heat transfer laws were applied to assess the impact of these losses on compressor efficiency. Additionally, a temperature-entropy (T-S) diagram was utilized to analyze thermal variations and volumetric losses. The loss calculations were performed using the finite integral transformation method. The results of the study show that heat and volumetric losses in piston compressors significantly affect thermal and mechanical efficiency. Unbalanced heat transfer was identified as the primary cause of efficiency reduction, with volumetric and temperature coefficients being influenced by energy losses. The mathematical models provided an accurate estimation of these losses and offer directions for improving performance. The study demonstrated that unbalanced heat transfer in piston compressors leads to significant energy losses, affecting overall system performance. Optimizing heat transfer and reducing volumetric losses are viable solutions for improving compressor efficiency. The models and methods presented in this article provide a solid foundation for enhancing compression processes.