Preliminary Design and Piping Diagram for a Combined Heat and Power System For the College of Engineering at the University of Louisiana Lafayette Using Donated Equipment

Abstract

Combined heat and power (CHP) systems have many differentfactors in design procedures. The con figuration of a CHP system canbe changed to affect different factors of the design and to meet spe-cific needs of the system. Before the design process can begin, productspecifications, such as steam or water pressures and temperatures, andequipment, such as absorption chillers and heat exchangers, need tobe identi fied and de fined. The objective of this paper is to lay out apreliminary design of the CHP system at the College of Engineering atthe University of Louisiana, Lafayette. First, a flow chart is presenteddepicting a broad scope model of the whole system. Then, the speci fi-cations of the absorption chiller and the heat exchanger to be used inthe system are calculated by working out the flow rates of the watercircuits and the temperature of the exhaust gas. Once these are deter-mined, a piping and instrumentation diagram is shown, based on thesecalculations. Most of the equipment was donated to the University forwork in the Energy Engineering Laboratory of the Mechanical Engi-neering Department and the Industrial Assessment Center. Our designwork involves connecting all of the donated and other equipment tomake our CHP system