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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 40043 (46)
- University: Sharif University of Technology
- Department: Energy Engineering
- Advisor(s): Saidi, Mohammad saeid; Shafii, Mohammad Behshad; Saeedi, Mohammad Hassan
- Abstract:
- Micro combined heat and power (MCHP) system is one of the most worldwide considered energy saving with high total efficiency systems. This research presents the application of MCHP to small scale users such as residential or light commercial buildings. Initially, the available technology in micro scale that can be used as an energy generator has been specified and categorized. Since then, by using the overall energy purchased cost by households assuming the energy carriers are kerosene, gas and electricity, total demand has been determined considering that the electricity expenses showing the use of electric appliances and the gas expenses expressing the cost of domestic hot water and heating-cooling energy consumptions which are calculated separately. Appropriate module for dwelling size and household size has been determined by using the statistical data of 2005. The final important variable for determining the energy demand of specific region is climatically divisions in which seven different climates have been considered for Iran. total demand has been determined considering that the electricity use of electric appliances and the gas and kerosene use of domestic hot water and heating-cooling energy consumptions which are calculated separately and MCHP produce 434 kwh/day of electricity. Appropriate module for dwelling size and household size has been determined to be 100 m2 dwelling with 4 adult persons. System operates on three Rankine cycles and technologies which are used as primary movers consist of micro gas turbine, micro fuel cell, micro solar cell, micro Stirling engine, micro internal combustion engine, micro wind turbine and micro boiler. Energy-Economic and Energy-Economic-Environment analysis of this combined cycle with different primary movers for optimizing the cycle has done. Energy-Economic-Environment analysis of this combined cycle with different primary movers and by both static and dynamic method for optimizing the cycle has been done in the literature and shows that for different climate regions micro gas turbine is best economic prime mover technology for 25% discount rate of Iran and for minimum time period of investment recovery. The micro gas turbine cycle has optimized with using genetic algorithm and multi objective function method. Finally, combined cycle has analyzed with first and second laws of thermodynamic that show this cycle first law electrical and total efficiencies are 41% and 88% and second law efficiency is 45% in best operational condition
- Keywords:
- Genetic Algorithm ; Optimization ; Energy Demand ; Micro Combined Heat and Power (MCHP)System ; Energy-Economic-Environment Model
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