Optimal design and operation of a CCHP system from an economic perspective For a residential campus located in Ahvaz

Rising fossil fuel prices, global warming concerns, advancements in the field of technology, and so on, caused the Trigeneration energy systems to be an attractive option to supply consumer energy demands in recent years. Therefore, in this article, these energy systems are introduced, and their main advantages are presented. In addition, different types of Power Generation Unit used in these systems described, and the advantages and disadvantages of each one are listed. Furthermore, a procedure for designing a trigeneration energy system to utilize in tropical areas proposed, that is based on providing maximum cooling demands. As well as, a procedure for extracting the optimal operation pattern of these energy production systems on different days of the year proposed which is based on an optimization problem. Moreover, a sample numerical study conducted to find out how to determine the optimal size of different devices in a trigeneration power system for use in a tropical residential campus. Electrical, heating and cooling demands of the residential campus are in accordance with the consumption pattern of consumers located in the metropolitan area of Ahwaz with frequent warm weather conditions. The study is codified in the MATLAB program, and its results are derived in the form of economic analysis. It is worth mentioning that, the possibility of selling electrical energy to the main grid is considered in the extraction of optimal operation pattern for a typical summer and winter days.