Energy and Carbon Efficiency Calculation Model for a Typical Dyeing and Printing Industrial System Based on the Standard Thermal Resistance Method

This paper addresses a typical dyeing and printing industrial system and introduces a system efficiency and carbon efficiency calculation model based on the standard thermal resistance method. Initially, the standard thermal resistance method is employed to conduct an in-depth analysis of the heat exchange process for each device. The data is reduced in dimension through a reverse deduction approach, leading to the derivation of the equipment's thermal resistance, power consumption, and other unknown parameters. Utilizing these parameters, each device's standard thermal resistance model is constructed and subsequently integrated to form a comprehensive power flow model for the entire dyeing and printing plant. This model can evaluate the plant's energy consumption conditions, pinpointing segments and equipment with high energy consumption. Further derivations provide expressions for system efficiency and carbon efficiency characterization in conjunction with system structure and operational feature parameters, creating a standard thermal resistance model for the equipment and system based on external characteristic parameters. This paper presents a tri-fusion technique rooted in expert experience analysis, survey data identification, and the physical standard thermal resistance method. This technique can calculate energy efficiency and carbon efficiency indicators even in scenarios with incomplete system information.