چكيده به لاتين
Developing a long-term program for optimizing the energy supply sector positively influences the country's economy and contributes to promoting the role of the country in the global energy markets. The results obtained from the energy optimization program in the energy supply sector include the efficiency improvement and reduced production of environmental pollutants due to energy production. The electricity required by industrial units, commercial buildings, and residential buildings are usually provided by the major power plants of the country, while all their thermal requirements are produced in the same place. However, another long existed method that has drawn more attention nowadays due its remarkable advantages is the simultaneous production of electricity and heat. Cogeneration or combined heat and power (CHP) is one of the optimization strategies in the energy sector, which leads to improved efficiency and reduced production of environmental pollutants resulting from energy generation. In the cogeneration (CHP) systems, a primary motive (driving force) releases the fuel chemical energy and converts it to mechanical power in the output axis. In these cases, the drive axis (drive shaft) is coupled to a generator to generate the electric power. It should be noted that the initial stimuli (driving forces), depending on their different types, cannot be immediately turned off after being turned on. Also, after shutting down, they need time for re-starting and becoming able to generate electricity. In addition, several factors such as system set-up costs, increased depreciation rates, increased maintenance and repair costs due to the increased number of the system's turns on and off, etc. have a significant impact on the tendency to minimize the system's running time after launching as well as the minimum time of the system's off after shutting down. This will play a major role in optimizing these issues. The aim of this research was to provide an innovative model by considering this important issue along with other influential factors to optimize these issues.
Keywords: Combined Heat and Power, Generation of electricity and heat, initial stimulus, optimization.
