scholarly journals A case study: Application of energy and exergy analysis for enhancing the process efficiency of a three stage propane pre-cooling cycle of the cascade LNG process

2016 ◽  
Vol 29 ◽  
pp. 125-133 ◽  
Author(s):  
Nazreen Begum Najibullah Khan ◽  
Ahmed Barifcani ◽  
Moses Tade ◽  
Vishnu Pareek
Keyword(s):  
Exergy Analysis ◽  
Process Efficiency ◽  
Cooling Cycle ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis ◽  
Study Application

scholarly journals Energy and exergy analysis of ship energy systems – the case study of a chemical tanker

2015 ◽  
Vol 18 (2) ◽  
pp. 82 ◽  
Author(s):  
Francesco Baldi ◽  
Hannes Johnson ◽  
Cecilia Gabrielii ◽  
Karin Andersson
Keyword(s):  
Exergy Analysis ◽  
Energy Systems ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis

Energy and Exergy Analysis on Gasification Processes

2015 ◽  
pp. 199-240
Author(s):  
Edgardo Olivares Gómez ◽  
Renato Cruz Neves ◽  
Elisa Magalhães de Medeiros ◽  
Mylene Cristina Alves Ferreira Rezende
Keyword(s):  
Energy Conversion ◽  
Thermodynamic Analysis ◽  
Chemical Reaction ◽  
Exergy Analysis ◽  
Gasification Process ◽  
Efficiency Assessment ◽  
Energy And Exergy ◽  
Thermochemical Processes ◽  
Energy And Exergy Analysis

In recent years, attention has focused on exergy analysis, a type of thermodynamic analysis which is an important tool for the efficiency assessment and the processes optimization when dealing with energy conversion and, particularly, thermochemical processes such as gasification. Thus, this chapter aims to introduce the fundamental concepts of energy and exergy and describe the energy and exergy evaluation tools, elucidating its importance for calculations applied to gasification processes. A case study was performed to show the proposal of energy and exergy analysis. Therefore, a single global gasification chemical reaction was used to represent the gasification process. This analysis can provide a tool to assess and develop models, simulations, calculations, and to optimize real gasification processes. Information and experiences covered in this chapter help to be put into perspective the technology, research and overcoming of challenges.

Energy and Exergy Analysis on Gasification Processes

2017 ◽  
pp. 1613-1646
Author(s):  
Edgardo Olivares Gómez ◽  
Renato Cruz Neves ◽  
Elisa Magalhães de Medeiros ◽  
Mylene Cristina Alves Ferreira Rezende
Keyword(s):  
Energy Conversion ◽  
Thermodynamic Analysis ◽  
Chemical Reaction ◽  
Exergy Analysis ◽  
Gasification Process ◽  
Efficiency Assessment ◽  
Energy And Exergy ◽  
Thermochemical Processes ◽  
Energy And Exergy Analysis

In recent years, attention has focused on exergy analysis, a type of thermodynamic analysis which is an important tool for the efficiency assessment and the processes optimization when dealing with energy conversion and, particularly, thermochemical processes such as gasification. Thus, this chapter aims to introduce the fundamental concepts of energy and exergy and describe the energy and exergy evaluation tools, elucidating its importance for calculations applied to gasification processes. A case study was performed to show the proposal of energy and exergy analysis. Therefore, a single global gasification chemical reaction was used to represent the gasification process. This analysis can provide a tool to assess and develop models, simulations, calculations, and to optimize real gasification processes. Information and experiences covered in this chapter help to be put into perspective the technology, research and overcoming of challenges.

scholarly journals Energy, Exergy, and Emission Analysis on Industrial Air Compressors

2021 ◽  
pp. 1-34
Author(s):  
Farah Nazifa Nourin ◽  
Juan Espindola ◽  
Osama M. Selim ◽  
Ryoichi S. Amano
Keyword(s):  
Exergy Analysis ◽  
Cost Savings ◽  
High Energy ◽  
Emission Analysis ◽  
Industrial Plants ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis ◽  
Overall Performance ◽  
Air Compressors

Abstract Air compressors, a key fluid power technology, play an important role not only in industrial plants but also in office buildings, hospitals, and other types of facilities. The efficient use of the air compressor is crucial to control unnecessary inefficiencies that cause high energy consumption. This study aims to provide energy and exergy analysis on air compressors for different industries. Detailed case studies are also analyzed. The case study focuses on the energy and exergy analysis of the compressed air system of foundry industries. The results indicate that applying the six improvement recommendations yield significant amounts of energy and cost savings as well as significant improvements in the overall performance of the system. The payback periods for different recommendations are economically feasible and worthwhile to use. The suggested improvement methods can provide high costs with a low payback period.

scholarly journals Feasibility Study Of Maisotsenko Indirect Evaporative Air Cooling Cycle In Iran

2015 ◽  
Vol 61 (2) ◽  
pp. 23-36
Author(s):  
Vahid Rezaee ◽  
Arash Houshmand
Keyword(s):  
Feasibility Study ◽  
Exergy Analysis ◽  
Dew Point ◽  
Entropy Generation Rate ◽  
Water Evaporation ◽  
Air Cooling ◽  
Cooling Cycle ◽  
Average Annual Temperature ◽  
Energy And Exergy ◽  
Energy And Exergy Analysis

Abstract This paper presents energy and exergy analysis of air cooling cycle based on novel Maisotsenko indirect evaporative cooling cycle. Maisotsenko cycle (M-cycle) provides desired cooling condition above the dew point and below the wet bulb temperature. In this study, based on average annual temperature, The Iran area is segmented into eleven climates. In energy analysis, wet-bulb and dew point effectiveness, cooling capacity rate and in exergy analysis, exergy input rate, exergy destruction rate, exergy loss, exergy efficiency, exergetic COP and entropy generation rate for Iran's weather conditions in the indicated climates are calculated. Moreover, a feasibility study based on water evaporation rate and Maisotsenko cycle was presented. Energy and exergy analysis results show that the fifth, sixth, seventh and eighth climates are quite compatible and Rasht, Sari, Ramsar and Ardabile cities are irreconcilable with the Maisotsenko cycle.

Sign in / Sign up

Export Citation Format

Share Document