DefinePK

Abstract

In chemical refineries and petrochemicals industries the energy consumptions is a very critical for both economic and environmental effects, the energy in chemical industries is mainly consumed through the heating and cooling processes. The efficient design of heat exchanger networks (HENs) has been studied by many researchers to reduce the energy consumption in chemical plants. Heat integration by pinch technology has been a unique method to design the HENs. In this paper a MATLAB code is developed to apply heat integration based on a graphical design approach using the temperature driving force between streams. The MATLAB model is explained in an educational way to introduce pinch analysis for students and young researchers in the field. The MATLAB code presented, intend to develop a useful toolbox for the synthesis of a heat exchanger network. The HEN is represented on a simple graph, where the cold stream temperatures are plotted on the X-axis, while the temperature driving forces for each exchanger are plotted on the Y-axis. This graphical technique describes the energy analysis problems in terms of temperature driving force (TDF) in a heat exchanger, this paper will study the design of two case studies through a developed MATLAB code.