Nuclear Hydrogen Production: Modeling and Preliminary Optimization of a Helical Tube Heat Exchanger

Bolfo, Lorenzo; Devia, Francesco; Lomonaco, Guglielmo

doi:10.3390/en14113113

Cited by 8 publications

(4 citation statements)

References 20 publications

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“…In Russia, the prospects of hydrogen production at nuclear power plants based on off-peak generation are mainly considered [26][27][28][29]. In addition, there are studies based on the use of thermochemical processes that require a direct coupling of a chemical plant to a nuclear reactor [30] or generally on high-temperature gas cooled reactors, even in the connection with steam methane reformation [31][32][33][34]. Recently, studies have begun to appear integrating hydrogen production plants into the technological scheme of thermal power plants [19,20,[35][36][37].…”

Section: Resultsmentioning

confidence: 99%

Analysis of Technologies for Hydrogen Consumption, Transition and Storage at Operating Thermal Power Plants

et al. 2022

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The paper analyses operating and developing technologies for hydrogen implementation, transition, and storage at operating thermal power plants (TPPs) to make recommendations for realization of perspective projects for evaluation of the use of hydrogen as a fuel. Over the medium-term horizon of the next decade, it is suggested that using the technology of burning a mixture of hydrogen and natural gas in gas turbines and gas-and-oil-fired boilers in volume fractions of 20% and 80%, respectively, be implemented at operating gas fired TPPs. We consider the construction of the liquefied hydrogen and natural gas storage warehouses for the required calculated quantities of the gas mixture as a reserve energy fuel for operating the TPPs. We consider the possibility of the reserve liquid fuel system being replaced by the technology involving storage of liquefied hydrogen in combination with natural gas. An economic assessment of the storing cost of reserve fuel on the TPP site is given. The paper suggests that the methane-hydrogen mixture be supplied to the TPP site by two independent gas pipelines for the possibility of using the mixture as the main fuel and to exclude fuel storage at the plant.

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Section: Resultsmentioning

confidence: 99%

Analysis of Technologies for Hydrogen Consumption, Transition and Storage at Operating Thermal Power Plants

et al. 2022

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“…On the other hand, the optimization of the IHX of the high-temperature engineering test reactor (HTTR) was recently performed by using innovative materials and a different primary coolant to increase the outlet temperature of its secondary side for hydrogen production [36]. INET was also researching to increase the outlet temperature of HTR for hydrogen production, heat and power co-generation, etc.…”

Section: Discussionmentioning

confidence: 99%

Combining Dual Fluidized Bed and High-Temperature Gas-Cooled Reactor for Co-Producing Hydrogen and Synthetic Natural Gas by Biomass Gasification

Zhou

Dong

et al. 2021

Energies

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Biomass gasification to produce burnable gas now attracts an increasing interest for production flexibility in the renewable energy system. However, the biomass gasification technology using dual fluidized bed which is most suitable for burnable gas production still encounters problems of low production efficiency and high production cost. Here, we proposed a large-scale biomass gasification system to combine dual fluidized bed and high-temperature gas-cooled reactor (HTR) for co-production of hydrogen and synthetic natural gas (SNG). The design of high-temperature gas-cooled reactor biomass gasification (HTR-BiGas) consists of one steam supply module to heat inlet steam of the gasifier by HTR and ten biomass gasification modules to co-produce 2000 MWth hydrogen and SNG by gasifying the unpretreated biomass. Software for calculating the mass and energy balances of biomass gasification was developed and validated by the experiment results on the Gothenburg biomass gasification plant. The preliminary economic evaluation showed that HTR-BiGas and the other two designs, electric auxiliary heating and increasing recirculated product gas, are economically comparative with present mainstream production techniques and the imported natural gas in China. HTR-BiGas is the best, with production costs of hydrogen and SNG around 1.6 $/kg and 0.43 $/Nm3, respectively. These designs mainly benefit from proper production efficiencies with low fuel-related costs. Compared with HTR-BiGas, electric auxiliary heating is hurt by the higher electric charge and the shortcoming of increasing recirculated product gas is its lower total production. Future works to improve the efficiency and economy of HTR-BiGas and to construct related facilities are introduced.

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“…Therefore, to achieve carbon neutrality, the country must acquire the means to produce hydrogen in large quantities without the emission of greenhouse gases 3 . Hydrogen production using nuclear energy can be considered as one possible alternative (eg, References 4‐8). For example, according to the United States Office of Nuclear Energy, 9 a 1000 MW NPP can produce more than 200 000 tons of hydrogen per year.…”

Section: Introductionmentioning

confidence: 99%

South Koreans' acceptance of hydrogen production using nuclear energy

Kim

Yoo

2021

Intl J of Energy Research

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Summary Since May 2017, the South Korean government has been pushing for policies to reduce nuclear power plants (NPPs) and instead expand the use of energy such as renewable energy and hydrogen. In response, the use of nuclear energy for hydrogen production is proposed, which calls for investigating the public acceptance of nuclear hydrogen production (NHP). This study gathered data on South Koreans' public acceptance of NHP on a 5‐point scale from a survey of 1000 people and identified and explored the factors affecting the acceptance, adopting an ordered probit model. Of the interviewees, 40.1% and 19.7% agreed with and opposed NHP, respectively, with the former being about two times more than the latter. The model secured statistical significance, and various findings emerged from the results. For example, people who were living in areas where the NPP is located, people with a small number of family members, old people, and high‐income people were more receptive to NHP than were others. However, neither education level nor gender has a significant impact on acceptance. Moreover, several implications derived during the survey are discussed in terms of enhancing NHP acceptance.

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Nuclear Hydrogen Production: Modeling and Preliminary Optimization of a Helical Tube Heat Exchanger

Cited by 8 publications

References 20 publications

Analysis of Technologies for Hydrogen Consumption, Transition and Storage at Operating Thermal Power Plants

Analysis of Technologies for Hydrogen Consumption, Transition and Storage at Operating Thermal Power Plants

Combining Dual Fluidized Bed and High-Temperature Gas-Cooled Reactor for Co-Producing Hydrogen and Synthetic Natural Gas by Biomass Gasification

South Koreans' acceptance of hydrogen production using nuclear energy

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