Energy and exergy analysis of thermoelectric generator system with humidified flue gas

2018 ◽  
Vol 156 ◽  
pp. 140-149 ◽  
Author(s):  
Yulong Zhao ◽  
Shixue Wang ◽  
Minghui Ge ◽  
Yanzhe Li ◽  
Yurong Yang
Keyword(s):  
Flue Gas ◽  
Thermoelectric Generator ◽  
Exergy Analysis ◽  
Generator System ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis

Energy and Exergy Analysis of Solar Parabolic Dish Thermoelectric Generator

2014 ◽  
Vol 592-594 ◽  
pp. 2437-2441 ◽  
Author(s):  
Gunalan Muthu ◽  
Subramaniam Shanmugam ◽  
Arunachalam R. Veerappan
Keyword(s):  
Energy Efficiency ◽  
Concentration Ratio ◽  
Thermoelectric Generator ◽  
Exergy Analysis ◽  
Exergy Loss ◽  
Thermal System ◽  
Increase With Increase ◽  
Energy And Exergy ◽  
Parabolic Dish ◽  
Energy And Exergy Analysis

The Performance of a thermal system is generally analysed by carrying out energy and exergy analysis of its different subsystems. In the present study the performance of subsystem namely PDC, receiver plate and PDC in a system of solar parabolic dish thermoelectric generator is studied. It is found that the energy and exergy loss are minimum in the receiver plate as compared to PDC and thermoelectric generator (TEG) at a particular direct normal irradiation (DNI). The exergy and energy efficiency in the PDC and TEG increase with increase in concentration ratio.

scholarly journals Performance evaluation of a walking beam type reheating furnace based on energy and exergy analysis

2020 ◽  
pp. 226-226
Author(s):  
Wenjie Rong ◽  
Baokuan Li ◽  
Fengsheng Qi
Keyword(s):  
Flue Gas ◽  
Exergy Analysis ◽  
Energy Utilization ◽  
Exergy Destruction ◽  
Reheating Furnace ◽  
Advanced Control ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis ◽  
Beam Type ◽  
Insight Into

A walking beam type reheating furnace with advanced control technology has been evaluated by combined energy and exergy analysis. In order to gain insight into the performance of the present furnace, the results of energy analysis are compared with those in published papers and the irreversibility of the furnace is analyzed via exergy destruction calculation. The results show that slabs preheated before charged into the furnace can save fuel and improve energy utilization. The structure and material of the wall and roof show good thermal insulation. However, the oxidized scale is a little more and the temperature of flue gas is high in the present reheating furnace. The energy efficiency of the furnace is 71.01%, while exergy efficiency is 51.41%, indicating a potential for energy-saving improvements of the present furnace. The exergy destruction of the furnace accounts for 28.36% of total exergy input which is mainly caused by heat transfer through a finite temperature difference (14.71%), fuel combustion (11.66%) and scale formation (1.99%).

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