Development of a Model Efficiency Improvement for the Designing of Feedwater Heaters Network in Thermal Power Plants

Abstract

Thermal power plants play a significant role in generating power, electricity, and energy consumption in the world, especially in developing countries. Therefore, the energy analysis of these power plants is very useful to increase the efficiency of systems and reduce energy consumption. One of the components of power plants that play a great role in energy consumption and recovery is the feedwater heater. In this study, a design method-based pinch technology for feedwater heaters of a coal power plant is presented. This method is used to reduce the irreversibility of heat transfer in feedwater heaters in this power plant. This study is performed on 6 feedwater heaters, which are similar in pairs. The results of this method show that this method is feasible for this system and the results also show that the implementation of this method with a Pinch range of 10 °C indicated a deficit hot utility of about 48.54 MW. Also, the amount of power plant efficiency improvement is 12.12%, and according to the Pinch method, could reduce the energy price of the power plant by about 125489 $/year.

Thermodynamic and economic analyses of natural gas combined cycle power plants with and without the presence of organic Rankine cycle

“…In this regard, the maximum use of natural gas energy is suggested through innovative arrangements resulting in higher electricity production capacities and efficiencies (Brito et al, 2017). Also, the modification can be applied to the system's operation mode (Hoseinzadeh and Stephan Heyns, 2022) and considering the environmental impact enhances its advantages (Hoseinzadeh and Astiaso Garcia, 2022).…”

Study on an advanced borehole heat exchanger for ground source heat pump operating in volcanic island: Case study of Jeju island, South Korea

“…Fossil fuels, however, are also the cause of environmental pollution, in particular, carbon dioxide and particulate matter emissions, which exacerbate climate change (Shahzad et al, 2017;Alrowais et al, 2020;Gani, 2021;Martins et al, 2021). Accordingly, interest in the development of renewable energy industries and eco-friendly power generation has increased worldwide, focusing on the social, environmental, and technological aspects of renewables (Oh et al, 2012;Chen et al, 2020a;2020b;2021;Hoseinzadeh and Heyns, 2020;Jamil et al, 2021;Hoseinzadeh and Stephan Heyns, 2022).…”