Increasing the efficiency of heat exchange by improving the design of heat exchangers

Abstract

This article is focused on the investigation and optimization of heat exchange efficiency in a shell-and-tube heat exchanger used for heating a saturated absorbent with regenerated absorbent in the technology of purifying regeneration gas from acidic components through absorption. The optimization of heat exchange efficiency involves modifying the hydrodynamic regimes of the heat exchanger by adjusting the properties of working fluids inside the tubes and the inter-tube space. The study aims to enhance heat exchange by inducing turbulent flows inside and between the tubes. The authors examined the impact of centrifugal force on flow dynamics to improve distribution uniformity within the distribution chamber. To achieve this, a strategic reorientation of the raw material inlet nozzle in a horizontal shell-and-tube heat exchanger with a one-sided influence on the distribution chamber is proposed. Throughout the research, experiments were conducted, and heat exchange parameters were examined including flow velocity, temperature differentials, and heat transfer coefficients. The results allowed for the determination of optimal parameters to enhance heat exchange efficiency in the specific heat exchanger. This work represents a significant contribution to the heat exchange technology and can be applied to optimize processes in the oil and gas and chemical industries, as well as other sectors utilizing shell-and-tube heat exchangers. The findings advance the understanding of heat exchange mechanisms and provide practical insights for improving efficiency in various industrial applications.