An overview of sustainable energy development by using cogeneration technology and opportunity for improving process

Salehi, Ali; Ghannadi‐Maragheh, Mohammad; Torab‐Mostaedi, Meisam; Torkaman, Rezvan; Asadollahzadeh, Mehdi

doi:10.1002/er.5742

Cited by 8 publications

(6 citation statements)

References 72 publications

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Section: Objective Function Numerical Expressionmentioning

confidence: 99%

“…Constraints on the performance of the CHP unit can be represented by Equations ( 6) and (7). Equation ( 6) presents the electrical efficiency of the cogeneration unit, while Equation (7) shows the thermal efficiency. The trends of η E,CHP,t and η tot,CHP,t have been modeled and validated for each technology proposed in the portfolio, in dependence upon the CCHP unit nominal capacity and partial load operation.…”

Section: Objective Function Numerical Expressionmentioning

confidence: 99%

“…2 The energy transition paradigm entails an increasing emphasis on energy consumption, energy conservation, 3 and energy efficiency of systems used in every sector, from residential 4 to transportation and industrial applications. 5,6 In support of this need, the adoption of increasingly efficient technologies is critical for achieving a marked sustainable growth 7 ; in this regard, combined heat and power (CHP) represents one of the most mature technological tools, 8,9 being applicable to both industrial and civil processes and allowing for both centralized and distributed generation. 10,11 Additionally, via the use of trigenerative systems (CCHP), it is feasible to significantly cut energy usage by simultaneously generating electricity, heat, and cooling.…”

Section: Introductionmentioning

confidence: 99%

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Semi‐empirical development of a novel and versatile multiobjective optimization tool for co/trigeneration energy system design

Fragiacomo

Lucarelli

Genovese

et al. 2022

Intl J of Energy Research

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Summary This article describes a novel and implemented optimization routine for the analysis of combined cooling, heat, and power generation. The optimization model is briefly described both in terms of logic and operation and in terms of mathematical formalization. The model is able to optimize energy systems with different technologies used for the cogeneration unit, namely, SOFC and PEM fuel cells, internal combustion engines (ICEs), and micro‐gas turbines (MGTs). The validation is performed both in terms of energy efficiency curves and in terms of unit costs, for all components within the energy system, including energy storage systems, heat pumps, and auxiliary boilers. The main key performance indicators included in the technical analysis of the CCHP units are the nominal electric and overall efficiency as a function of installed size and during a partial load operation, as well as the power‐to‐heat factor in dependence upon the nominal capacity/power. Two main storage technologies have been included, namely lithium‐ion batteries (Li‐ion BES) and lead‐acid batteries (LA BES). The heat pump portfolio allows the choice between compression gas heat pumps (CGHPs) and absorption heat pumps (ABHPs), with their COP and EER described as a function of the external temperature and of a partial load operation. The validation of the modeled curves is performed in comparison with data of existing commercial units, presenting a correlation factor over 95% for most of the technologies. Highlights Presentation of a multiphysical design tool for CCHP systems; Economic, technical, and environmental analysis and optimization; PEMFC and SOFC are included in the tool technology portfolio; The model is based on validated and semi‐empirical correlations; Evaluation of different energy storage systems and heat pump technologies. The present article describes the validation of an innovative multiobjective model aiming to optimize both the operating strategy of the plant and the sizing of the main equipment in a correlated way. The article focuses on the validation of the proposed model and, as a further novelty, includes a broad technological portfolio in terms of cogeneration units and describes the semi‐empirical validation of the model by comparing the cost and performance curves modeled with existing market elements or literature data.

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Section: Objective Function Numerical Expressionmentioning

confidence: 99%

Section: Objective Function Numerical Expressionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Semi‐empirical development of a novel and versatile multiobjective optimization tool for co/trigeneration energy system design

Fragiacomo

Lucarelli

Genovese

et al. 2022

Intl J of Energy Research

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“…HTGR plays an essential role in the cogeneration system. The high temperature of the HTGR is ideal for producing hydrogen 7 . Second, the safety of HTGR is excellent because the inherent safety of HTGR has been demonstrated in experimental reactors.…”

Section: Introductionmentioning

confidence: 99%

“…The high temperature of the HTGR is ideal for producing hydrogen. 7 Second, the safety of HTGR is excellent because the inherent safety of HTGR has been demonstrated in experimental reactors. In addition, from the aspect of cooling material, the use of helium in HTGR as a coolant has its advantages compared to other gases, for example, CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Comparison of neutronic aspects in high‐temperature gas‐cooled reactor using ZrC and SiC Triso particle with 50 and 100 MWt power

Miftasani

Su’ud

Irwanto

et al. 2021

Intl J of Energy Research

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Summary The use of zirconium carbide (ZrC) as a substitute for silicon carbide (SiC) has been proposed to improve the performance of coated particles for high‐temperature gas‐cooled reactor (HTGR) fuel. Irradiation test on ZrC has proved that it has excellent characteristics for HTGR fuel compared with SiC, such as fission product retention capabilities and better resistance on fission product corrosion. Neutronic analysis on 30 MWt HTGR using ZrC and SiC has been performed in many previous studies. The research presented in this paper was conducted as a further continuation of the aforementioned studies. The present study was directed to analyze tristructural isotropic (TRISO)‐coated particles with ZrC as a substitute for the SiC layer on an HTGR with different power rates. Here, we used high‐temperature test reactor design, an experimental scale prismatic HTGR built and operated in Japan. The power was varied at the range of 50‐100 MWt, while the reactor geometry was modified by applying an additional fuel layer in the axial and radial directions. Neutronic analysis of the reactor was investigated by calculating the k‐eff, k‐inf, power peaking factor, burn‐up level, neutron spectrum, and Doppler effect using ZrC and SiC layers for TRISO‐coated fuel particles. The result shows the coated fuel particle using the ZrC layer has the same performance as SiC with an insignificant difference in the values on neutronic aspects calculation. Neutronic calculations are performed using the SRAC code with the Japanese Evaluated Nuclear Data Library 4.0 nuclear data library.

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Green Hydrogen Production by Low‐Temperature Membrane‐Engineered Water Electrolyzers, and Regenerative Fuel Cells

Bodard,

Chen,

ELJarray

et al. 2024

Small Methods

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Green hydrogen (H2) is an essential component of global plans to reduce carbon emissions from hard‐to‐abate industries and heavy transport. However, challenges remain in the highly efficient H2 production from water electrolysis powered by renewable energies. The sluggish oxygen evolution restrains the H2 production from water splitting. Rational electrocatalyst designs for highly efficient H2 production and oxygen evolution are pivotal for water electrolysis. With the development of high‐performance electrolyzers, the scale‐up of H2 production to an industrial‐level related activity can be achieved. This review summarizes recent advances in water electrolysis such as the proton exchange membrane water electrolyzer (PEMWE) and anion exchange membrane water electrolyzer (AEMWE). The critical challenges for PEMWE and AEMWE are the high cost of noble‐metal catalysts and their durability, respectively. This review highlights the anode and cathode designs for improving the catalytic performance of electrocatalysts, the electrolyte and membrane engineering for membrane electrode assembly (MEA) optimizations, and stack systems for the most promising electrolyzers in water electrolysis. Besides, the advantages of integrating water electrolyzers, fuel cells (FC), and regenerative fuel cells (RFC) into the hydrogen ecosystem are introduced. Finally, the perspective of electrolyzer designs with superior performance is presented.

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An overview of sustainable energy development by using cogeneration technology and opportunity for improving process

Cited by 8 publications

References 72 publications

Semi‐empirical development of a novel and versatile multiobjective optimization tool for co/trigeneration energy system design

Semi‐empirical development of a novel and versatile multiobjective optimization tool for co/trigeneration energy system design

Comparison of neutronic aspects in high‐temperature gas‐cooled reactor using ZrC and SiC Triso particle with 50 and 100 MWt power

Green Hydrogen Production by Low‐Temperature Membrane‐Engineered Water Electrolyzers, and Regenerative Fuel Cells

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