Research of Energy Technological Parameters in the Processes of Heat Pump Utilization of Heat Exhaust Gases of Rotary Kilns

Abstract

This work is devoted to the study of energy technological parameters of heat pump utilization of exhaust gases heat from rotary kilns in production of building materials for heat technology and industrial heat supply. This goal is achieved due to the proposed new approach to the crea-tion of energy-saving technology and improvement of the heat supply system based on the in-tegration of contact-recuperative and thermal transformer heat recovery. The most important results are as following: a modified dependence of the conversion coefficient, an effective system for removing the waste gas heat for industrial and urban heat supply, a thorough as-sessment of the energy efficiency of the developed system, the dependence of the actual con-version coefficient on the energy technological parameters, as well as a rational degree of the exhaust gases pre-cooling, depending on their initial temperature and ratio of water consump-tion of the systems for technological and household purposes, and the range of their preferred ratio. The relationship between the consumption of the heating and heated medium in the pro-cess of the contact interaction has been substantiated. The results obtained differ from those existing by the complex accounting of the energy technological parameters in the analytical so-lution of the task. The practical significance of the results of the proposed technical solution lies in the fact that they can significantly reduce the consumption of the burned fuel due to a substantial expansion of the energy potential of the recovered heat, reduce heat, dust and gas emissions.

Keywords

• heat pumps
• thermal transformer
• heat recovery
• rotary kilns
• energy efficiency.