This work aims to develop a methodology based on exergoeconomic models to be used as a tool in the analysis of energy efficiency transformers arranged in distribution networks. The exergetic modelling method adopted is based on building of thermoeconomic functional diagram that will be used later as a reference for defining the allocation of costs associated with the transformer choose for analysis. The exergetic cost for each compound of transformer has a tendency to decrease because the value aggregated by device operation. Also exergetic production cost and final cost of power output have this same tendency. Finally these costs provide a payback period less than a year, which makes viable the investment in this system with operational set points.
In this paper, a typical combined cycle power generation unit in Iran is simulated by a mathematical method in order to perform sensitivity analysis on environmental emission and electricity price. The results of this study demonstrate that the efficiency of the power plant depends on both gas turbine design parameters such as gas turbine inlet temperature, compressor pressure ratio and steam cycle design parameters such as HRSG pinch point temperature, condenser pressure. The results demonstrate that an increase in TIT and compressor pressure ratio have a significant effect on exergy efficiency and destruction.
Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.