Exergoeconomic analysis of Ihovbor Gas Power plant

Abstract

Exergoeconomic parameters of Ihovbor Gas Power plant were determined in this study. To achieve this, the exergy of each stream, the economic cost of the plant components, the exergetic costs of each stream and the exergoeconomic evaluation of each component were determined. The average exergy efficiency of GTs ONE, TWO, THREE and FOUR were found to be 59.32%, 60.83%, 59.80% and 60.38% respectively and it decreased with increase in ambient temperature. The exergy destruction cost was greatest in the combustor (average of 1596.175$/hr), the relative cost difference was greatest in the air compressor with an average ratio of 0.36585, the exergoeconmic factor of the gas turbine was greatest (91.84%) and the average cost of power generation was found to be $0.0162/kWhr. Exergoeconomic parameters can be used as tools for energy audit and determining the running costs of power plants and power generation.

Exergoeconomic Analysis of 21.6 MW Gas Turbine Power Plant in Riau, Indonesia

“…Furthermore, the purchased equipment cost of each component as show in Table 3 such as compressor, combustion chamber and gas turbine were calculate by using data from Table 2 and Eq. (7)- (9). It was seen in Table 3 that the most expensive of purchase equipment cost is compressor $3,421,229.46 followed by the gas turbine $2,642,389.59 and the cheapest was combustion chamber $174,360.79 and the total of purchace equipment cost wass $6,237,979.84.…”

“…It was used to determine the magnitude, location, cause of irreversibility and to discover the efficiency of the power plant components. The essence of this analysis is primarily for optimization of thermal energy system, which in this case is the power plant [1,[9][10][11][12][13]. Furthermore, in this study, exergy and economic analysis were combined and used to evaluate the accrued cost caused by irreversibility, including the cost of investment in each component.…”

“…Furthermore, the overall exergy efficiency of 30.81%, identified that the lowest exergetic efficiency (54.05%) was in the combustion chamber [14]. A similar study of exergoeconomic analysis was carried out for gas turbine power plant and the highest exergy destruction cost obtained was also in the combustion chamber compared with other component [5,9,11,12,16].…”

Exergo-economic cost accounting for PW4000 turbofan engine and its components

“…Physical exergy flow as called thermo-mechanical exergy divided into two components as thermal and pressure exergy. When ideal gas relations and constant specific heat capacity are accepted, this terms could be determined as follows respectively [6]:…”