Fariborz Ahmadi Daryakenari; Hamidreza Nasiri
Abstract
Prior to the use of fossil fuels, urban energy was supplied through biomass sources, mainly wood and coal. The sources of these materials had to be located in a certain area around ...
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Prior to the use of fossil fuels, urban energy was supplied through biomass sources, mainly wood and coal. The sources of these materials had to be located in a certain area around the city. The limitations of these resources, along with the limitations of water and food, limited the size of the city and its potential for expansion. The required electricity was generated regionally and sporadically. The first generators of electricity were steam engines, but gradually they were replaced by internal combustion engines. Over time, with the development of distributed networks, problems arose. Researches and reports were published that expressed the disadvantages of this method and suggested that the national network be constructed and all local networks be connected to it. Cooling of power plants, their construction inside the cities were not cost-effective, so the power plants were moved to areas with easier access to fuel and water, and centralized power plants were developed. Therefore, the electricity reached the end consumer through the global electricity transmission and distribution network. The fuels used for transportation are transported in the same way that they are used today, that is, using tanks and being delivered to the consumer at gas stations. This paper proposes using new technologies to produce power. In this paper, the train method has been used to simulate the energy consumption in cogeneration systems. The results of the analysis indicates that the use of small sized steam boilers reduces the overall cost of small-sized as well as average-sized generators
