Techno-economic analysis of a hybrid energy system for CCHP and hydrogen production based on solar energy

Song, Yujia; Mu, Hailin; Li, Nan; Shi, Xunpeng; Zhao, Xunwen; Chen, Chaonan; Wang, Hongye

doi:10.1016/j.ijhydene.2021.08.134

Cited by 43 publications

(5 citation statements)

References 87 publications

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“…The power generated by the ORC unit is transmitted to the PEME for hydrogen production from electrolytic water. The relationship between hydrogen production rate and power input is as follows m normalH 2 = 3600 · E PEM · η PEM LHV where E PEM is the power input value of PEME, i.e., the net power output of the ORC unit, η PEM is the efficiency of the PEME, with a value of 0.9, and LHV is the calorific value of hydrogen, 143 MJ/kg.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…The results showed that the wind power utilization rate in this study reached 92.6%, which can reduce costs and CO 2 emissions, save primary energy, and effectively improve energy efficiency. Photovoltaic power was generated by Song et al to supply power for public buildings; the power from surplus electricity was converted to hydrogen using a PEM, providing a solution to power limitation in photovoltaic power generation. Mokhtara et al reduced CO 2 emissions by using solar energy to power buildings and hydrogen for public transport.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative Analysis of a Novel System Integrating ORC, Hydrogen Production, and Seawater Desalination with LNG Cold Energy: Energy, Economic, and Environmental Analyses

Chen,

Mu,

et al. 2023

Energy Fuels

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The utilization problem of fluctuating power generated by the organic Rankine cycle (ORC) system using LNG (liquefied natural gas) cold energy and saving freshwater was studied using a novel system (CPDH system) by combining power generation, hydrogen production, and seawater desalination. The fluctuating power was transferred to a PEME (proton exchange membrane electrolyzer) for hydrogen production via water electrolysis. Moreover, the residual cold energy after power generation was used directly for seawater desalination to obtain freshwater and improve the utilization efficiency of LNG cold energy. The desalted freshwater was transferred to PEME for hydrogen production. A mathematical optimization model was established with the maximum net earnings of the system as the goal. A case study was conducted to validate the thermodynamic, economic, and environmental performance advantages of the novel system. Results show that the cold energy utilization efficiency of the novel system increases by 72.54, 69.43, 68.35, and 80.21% during spring, summer, autumn, and winter, respectively. The cold energy utilization exergy efficiency increases by 1.27, 1.63, 1.41, and 0.91%, respectively, compared to the system without seawater desalination. In addition, the net earning of the system was 65547.18 $/year when the novel system operates at summer ambient temperature, which could save 7688.34 m 3 /year of freshwater resources and reduce CO 2 emission by 111.14 t/year.

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Section: Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of a Novel System Integrating ORC, Hydrogen Production, and Seawater Desalination with LNG Cold Energy: Energy, Economic, and Environmental Analyses

Chen,

Mu,

et al. 2023

Energy Fuels

Self Cite

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“…Therefore, this paper takes Kuqa as the research site and explores the HPS suitable of local renewable energy resources. In the previous study, the optimal system structures were selected for six different types of grid-connected and off-grid renewable energy HPSs [26]. In order to improve the techno-economic performance of the selected system, this paper focuses on analyzing the influence of the load data and component capacity on the key technical parameters of the grid-connected and off-grid HPS, and determining the most compatible load data and component capacity.…”

Section: Introductionmentioning

confidence: 99%

“…Capacity configuration of renewable energy hydrogen production systems for different scenarios at minimum NPV[26].…”

mentioning

confidence: 99%

Parametric Study and Optimization of Hydrogen Production Systems Based on Solar/Wind Hybrid Renewable Energies: A Case Study in Kuqa, China

Yang,

Yan,

Cai

et al. 2024

Sustainability

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Based on the concept of sustainable development, to promote the development and application of renewable energy and enhance the capacity of renewable energy consumption, this paper studies the design and optimization of renewable energy hydrogen production systems. For this paper, six different scenarios for grid-connected and off-grid renewable energy hydrogen production systems were designed and analyzed economically and technically, and the optimal grid-connected and off-grid systems were selected. Subsequently, the optimal system solution was optimized by analyzing the impact of the load data and component capacity on the grid dependency of the grid-connected hydrogen production system and the excess power rate of the off-grid hydrogen production system. Based on the simulation results, the most matched load data and component capacity of different systems after optimization were determined. The grid-supplied power of the optimized grid-connected hydrogen production system decreased by 3347 kWh, and the excess power rate of the off-grid hydrogen production system decreased from 38.6% to 10.3%, resulting in a significant improvement in the technical and economic performance of the system.

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“…In order to ensure the MES's security, uncertainties of renewable sources must also be taken into account. As the world moves toward green energy, RE exploitation is becoming increasingly important [5]. RE's unpredictable nature presents serious reliability and protection concerns [6], limiting its expansion and application.…”

Section: Introductionmentioning

confidence: 99%

A Novel Evolving Framework for Energy Management in Combined Heat and Electricity Systems with Demand Response Programs

Cui

Gan²,

Iqbal

et al. 2023

Sustainability

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In recent years, demand response programs (DRPs) have become an effective method of encouraging users to participate in energy system operations. The problem of optimal energy flow (OEF) is a complex challenge in multiple power systems. Accordingly, this study aims to propose a novel evolving framework for optimal OEF operation of an electricity, heat, and gas integrating system, taking into account flexible heat and electricity demands. To this end, a switching idea between input energy carriers has been introduced to combine the traditional DRP with demand-side energy supply management. Switching between the feeding energy carriers could change how power is supplied to the end users and thus would affect the total cost of the grid. Operators of integrated systems minimize the operational costs associated with supplying flexible power to users in this study. Considering the high nonlinearity of the problem, a novel optimization algorithm is presented for solving the complex OEF based on the improved teaching–learning-based optimization algorithm (ITLBOA). According to the outcomes, flexible DRP reduces operational prices and smooths power demand curves for power and heating networks.

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Techno-economic analysis of a hybrid energy system for CCHP and hydrogen production based on solar energy

Cited by 43 publications

References 87 publications

Comparative Analysis of a Novel System Integrating ORC, Hydrogen Production, and Seawater Desalination with LNG Cold Energy: Energy, Economic, and Environmental Analyses

Comparative Analysis of a Novel System Integrating ORC, Hydrogen Production, and Seawater Desalination with LNG Cold Energy: Energy, Economic, and Environmental Analyses

Parametric Study and Optimization of Hydrogen Production Systems Based on Solar/Wind Hybrid Renewable Energies: A Case Study in Kuqa, China

A Novel Evolving Framework for Energy Management in Combined Heat and Electricity Systems with Demand Response Programs

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