Exergy Analysis as a Tool for Decision Making on Substrate Concentration and Light Intensity in Photobiological Hydrogen Production

2015 ◽  
Vol 4 (3) ◽  
pp. 429-440 ◽  
Author(s):  
Ali Dadak ◽  
Mortaza Aghbashlo ◽  
Meisam Tabatabaei ◽  
Ghasem Najafpour ◽  
Habibollah Younesi
Keyword(s):  
Decision Making ◽  
Hydrogen Production ◽  
Light Intensity ◽  
Substrate Concentration ◽  
Exergy Analysis

Exergy analysis for decision making on operational condition of a continuous photobioreactor for hydrogen production via WGS reaction

2016 ◽  
Vol 41 (4) ◽  
pp. 2354-2366 ◽  
Author(s):  
Mortaza Aghbashlo ◽  
Meisam Tabatabaei ◽  
Seyed Sina Hosseini ◽  
Habibollah Younesi ◽  
Ghasem Najafpour
Keyword(s):  
Decision Making ◽  
Hydrogen Production ◽  
Exergy Analysis ◽  
Wgs Reaction

Interval-valued probabilistic uncertain linguistic information for decision-making: selection of hydrogen production methodology

2021 ◽  
Author(s):  
R. Krishankumar ◽  
Arunodaya R. Mishra ◽  
K. S. Ravichandran ◽  
Samarjit Kar ◽  
Pankaj Gupta ◽  
...  
Keyword(s):  
Decision Making ◽  
Hydrogen Production ◽  
Linguistic Information ◽  
Interval Valued ◽  
Selection Of

Exergy analysis of hydrogen production from steam gasification of biomass: A review

2019 ◽  
Vol 44 (28) ◽  
pp. 14290-14302 ◽  
Author(s):  
Yaning Zhang ◽  
Pingfei Xu ◽  
Shuang Liang ◽  
Bingxu Liu ◽  
Yong Shuai ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Exergy Analysis ◽  
Steam Gasification

scholarly journals Comparative studies of Cu-Cl Thermochemical Water Decomposition Cyles for Hydrogen Production

2018 ◽  
Vol 61 ◽  
pp. 00009
Author(s):  
Funmilayo Osuolale ◽  
Oladipupo Ogunleye ◽  
Mary Fakunle ◽  
Abdulfataah Busari ◽  
Yetunde Abolanle
Keyword(s):  
Hydrogen Production ◽  
Exergy Analysis ◽  
Energy Analysis ◽  
Chemical Species ◽  
Efficiency Improvement ◽  
Water Decomposition ◽  
Step Cycle ◽  
Efficiency Increase ◽  
Production Stages ◽  
Parametric Studies

This research focuses on thermodynamic analysis of the copper chlorine cycles. The cycles were simulated using Aspen Plus software. All thermodynamic data for all the chemical species were defined from literature and the reliability of other compounds in the simulation were ascertained. The 5-step Cu–Cl cycle consist of five steps; hydrolysis, decomposition, electrolysis, drying and hydrogen production. The 4-step cycle combines the hydrolysis and the drying stage of the 5-step cycle to eliminate the intermediate production and handling of copper solids. The 3-step cycle has hydrolysis, electrolysis and hydrogen production stages. Exergy and energy analysis of the cycles were conducted. The results of the exergy analysis were 59.64%, 44.74% and 78.21% while that of the energy analysis were 50%, 49% and 35% for the 5-step cycle, 4-step cycle and 3-step cycle respectively. Parametric studies were conducted and possible exergy efficiency improvement of the cycles were found to be between 59.57-59.67%, 44.32-45.67% and 23.50-82.10% for the 5-step, 4-step and 3-step respectively. The results from the parametric analysis of the simulated process could assist ongoing efforts to understand the thermodynamic losses in the cycle, to improve efficiency, increase the economic viability of the process and to facilitate eventual commercialization of the process.

The utility of environmental exergy analysis for decision making in energy

Energy ◽  
2013 ◽  
Vol 55 ◽  
pp. 742-751 ◽  
Author(s):  
Adam P. Simpson ◽  
Chris F. Edwards
Keyword(s):  
Decision Making ◽  
Exergy Analysis

scholarly journals Evaluating the materials used for hydrogen production based on photoelectrochemical technology

2019 ◽  
Vol 8 (2) ◽  
pp. 169 ◽  
Author(s):  
Mohammdreza Nazemzadegan ◽  
Roghayeh Ghasempour
Keyword(s):  
Decision Making ◽  
Hydrogen Production ◽  
Fossil Fuels ◽  
Material Selection ◽  
H2 Production ◽  
University Professors ◽  
Selection Approach ◽  
Materials Used ◽  
Physical And Chemical ◽  
Pec Water Splitting

Hydrogen as a CO2-free fuel has been considered as a serious alternative for problematic fossil fuels in recent decades Photoelectrochemical (PEC) water splitting is a developing solar-based technology for hydrogen production. In this study, some possible options for upgrading this technology from R&D stage to prototype stage through a material selection approach is investigated. For these purpose, TOPSIS algorithm through a multi criteria decision making (MCDM) approach was utilized for evaluating different (PEC)-based hydrogen production materials. TiO2, WO3 and BiVO4 as three semiconductors known for their PEC application, were selected as alternatives in this decision-making study. After defining a set of criteria, which were assessed based on similar studies and experts' visions, a group of ten PEC-experts including university professors and PhD students were asked to fill the questionnaires. The eight criteria considered in this study are include "Study Cost", "Synthesis Simplicity", "Facility & Availability", "Deposition capability on TCO", "Modifiability", "Commercialization in H2 production", "Physical and Chemical Durability" and "Eco-friendly Fabrication". The final TOPSIS results indicates that TiO2 is selected as the best semiconductor for further investments in order to upgrade the PEC-based hydrogen production technology from R&D level to prototype stage. ©2019. CBIORE-IJRED. All rights reserved

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