Parametric Study on Steam Generation of Heat Recovery Steam Generator at 2 × 4.2MW District Cooling Plant

This research was conducted to study the various parameters that have significant impact on the steam generation of a heat recovery steam generator (HRSG) in the gas district cooling (GDC) plant in UTP. Through this study, the amount of steam generated by the HRSG with respect to different operating conditions was analyzed to identify improvements for the HRSG. The main parameters that have significant impact on the steam generation of a HRSG are the exhaust gas temperature entering the HRSG, the operating pressure of the HRSG, the approach point and pinch point, heat transfer surface area of the HRSG components, and the operating load. Other factors that could have an impact on the amount of steam generated by the HRSG include the exhaust gas analysis, arrangement of the components of the HRSG, the type of circulation in the HRSG, etc. In this research, the parameters that were studied are the exhaust gas temperature, the feedwater temperature, the ambient temperature and the pinch and approach point. The parametric study was carried out using Microsoft Excel spreadsheet and a simulation was done by using Engineering Equation Solver (EES) to obtain the results