Analyze the effect of external conditions of the cooling cycle on precooled linde systeme

Abstract

This study investigates the influence of critical operating variables on the efficiency of the precooled Linde cycle, with a focus on refrigerant mass flow rates, condensation temperatures, and cooling power. The study explored condensation temperatures ranging from 2°C to 45°C and refrigerant mass flow rates between 0.1 and 0.9 g/s to understand their impact on system performance. Three refrigerant mixtures R229, R134a, and R410a were analyzed to evaluate their effect on key performance metrics, including the figure of merit and the proportion of gas liquefied. Nitrogen was utilized as the standard permanent gas to benchmark the system's overall effectiveness. The results demonstrate that lowering condensation temperatures enhances the system's efficiency, resulting in increased liquid yield, especially at higher refrigerant mass flow rates. The characteristics of the refrigerant used in the cold circuit emerged as a crucial factor influencing the efficiency of Linde’s precooling cycle. This research offers valuable insights into optimizing operating parameters, contributing to the development of more efficient precooled Linde systems. By improving system performance, this study advances the understanding of cryogenic refrigeration cycles, providing a pathway for future enhancements in design and application.