فهرست نشریات علمی دسترسی آزاد ایران

This paper details the design of a cogeneration configuration intended to simultaneously satisfy the tripartite thermal, cooling, and electrical energy requirements of an academic facility in four different climates in the cities of Yazd, Bandar Abbas, Tehran, and Tabriz. Considering the dynamic pattern of the triple loads of the building and ambient temperature, the performance of the micro-gas turbine and other equipment has been studied dynamically, hourly, and off-design. The results have shown that the lowest and highest power loss of the micro-gas turbine occurred in the climates of Tabriz and Bandar Abbas, which are 20.36MWh and 66.26MWh, respectively. The cogeneration system in cities with warm climates, such as Bandar Abbas and Yazd, has less heat loss in the warm seasons, while in the cold seasons of the year, cities with cold climates have the lowest heat losses. The results of the cogeneration system also showed that the system attained the maximum thermal and exergy efficiency in Tabriz, which were 48.44% and 31.23%, respectively. The shortest payback period for using a cogeneration system in this city is 4.48 years. The highest electricity sales and the lowest amount of electricity purchased from the grid were also related to the same climate, which were 615.2MWh and 2.027MWh, respectively. The cogeneration system had its lowest electricity sales in the city of Bandar Abbas, which was 577.7MWh. The highest amount of electricity purchased was 15.78MWh, which was related to the same city.