Hydrogen production by coupling pressurized high temperature electrolyser with solar tower technology

Monnerie, Nathalie; Storch, Henrik von; Houaijia, Anis; Roeb, Martin; Sattler, Christian

doi:10.1016/j.ijhydene.2016.11.034

Cited by 34 publications

(12 citation statements)

References 14 publications

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“…The mirror reflectivity is 87%, including cleanliness and availability. The annual efficiency of the solar part h s is defined as the net thermal power P th that the reactor provides throughout the year (including solar reactor losses) divided by the theoretical maximum of solar radiation (expressed as the direct normal irradiance DNI) hitting the entire mirror surfaces (A Mirror ) and considers thus the efficiency of the solar reactor and of the solar heliostat field [37]:…”

Section: Layout Of the Solar Fieldmentioning

confidence: 99%

Methanol production using hydrogen from concentrated solar energy

Monnerie

Gan

Roeb

et al. 2020

International Journal of Hydrogen Energy

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Section: Layout Of the Solar Fieldmentioning

confidence: 99%

Methanol production using hydrogen from concentrated solar energy

Monnerie

Gan

Roeb

et al. 2020

International Journal of Hydrogen Energy

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“…Therefore, it is necessary to use concentrating solar collectors if R is to be improved. In the case of using hydrogen and air as heat transfer media, Q′′ was calculated by Equation (6). When hydrogen is heated from the room temperature of Table 4, Table 5 lists Q′′ , M and R in the case of using hydrogen and air as heat transfer media in the solar-hydrogen system.…”

Section: Evaluation Of Saving Thermal Energy and Power Generation By mentioning

confidence: 99%

Impact of Heat Transfer Media on Performance of Solar-Hydrogen Power Generation

Nishimura¹,

Kitagawa²,

Hirota³

et al. 2017

SGRE

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Solar-hydrogen system has great potential for contributing to sustainable and clean energy supply. The aim of this study is to clarify the impact of heat transfer media in solar collector such as methane, ammonium, hydrogen, air and water on the performance of solar-hydrogen system. After estimating the highest temperature attainable by each heat transfer media, the amount of thermal energy that could be saved in the production of hydrogen or preheat for power generation by fuel cell was calculated. The power generation performance of fuel cell using each heat transfer media was also investigated. As a result, it has been revealed that the temperature changes of methane, ammonium and air follow the horizontal solar radiation intensity irrespective of seasons, and their highest temperatures are almost the same among them. The temperature response of hydrogen is slower than methane, ammonium and air. This study defines the ratio of saving thermal energy which indicates the effect of solar thermal utilization for production of hydrogen or preheat for power generation by fuel cell without using utility gas. It has been found that the biggest thermal energy saving is obtained when hydrogen and air are used as the heat transfer media. The power generated by PEFC system per effective area of evacuated tube collector in the case of using methane or ammonium is

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“…Concentrated solar power (CSP) technologies are the most relevant pathways as heat and electricity can be simultaneously supplied via CSP systems (Sanz-Bermejo et al, 2014). In addition, coupling with thermal storage, CSP-driven SOE systems can potentially achieve continuous operation, which is unique for SOEbased PtG/PtL (Monnerie et al, 2017). CSP technologies mainly include solar tower technologies (>500°C) with molten salt, steam, or air as heat transfer fluid, parabolic trough technology (<420°C), and Fresnel technology.…”

Section: Introductionmentioning

confidence: 99%

Thermo-economic evaluation and optimization of solar-driven power-to-chemical systems with thermal, electricity, and chemical storage

Huang

Zhang²,

Guo³

et al. 2023

Front. Energy Res.

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This paper evaluates the thermo-economics of power-to-chemicals using solar energy, with the chemicals being methane, methanol, and gasoline. In addition to the optimal technology sizing and heat cascade utilization, this paper also considers the optimal molten-salt solar power tower (MSPT) design, as the MSPT significantly affects the levelized product cost. A bi-level optimization is proposed, employing mixed-integer linear programming at the lower level with heat and mass integration for optimizing sizes and operating strategies of technologies, and with heat cascade utilization and a genetic algorithm at the upper level for optimizing the MSPT design. In the upper level, the full-load storage hours, design direct normal irradiance, solar multiple, and sizes of the MSPT are optimized. The electricity sources considered are the MSPT, photovoltaic (PV) with daily electricity storage, and the electrical grid as a complementary technology to satisfy the targeted daily product demand. Cost-competitiveness of solar-driven chemical synthesis is thoroughly assessed via considering sensitivity analysis on 1) regional solar resource endowments and actual local demands; 2) electricity sources, that is, PV vs. MSPT; and 3) the scale effect represented by different chemicals’ yield. The results show that the levelized methane cost ranges from 4.5 to 8.5 €/kg, depending on the location, plant size, and annual power contribution of concentrated solar power. Due to the larger mass production, the levelized cost of methanol and gasoline is lower: 1.5–2.2 €/kg for methanol and 4–6 €/kg for gasoline. The findings highlight the significance of location choice, that is, natural endowment of solar radiation and carbon sources. Using the syngas co-electrolysis pathway and direct solar radiation 100 kWh/m2 higher, the methane production cost is decreased by 2.4 €/kg. Sensitivity analysis performed on plant scale reveals that a compact, small-scale system is far too expensive. The levelized cost of methane could be decreased by 1.2 €/kg when the plant is scaled up from 4,000 to 20,000 kg/day H2. Due to its expensive electricity storage and limited working hours, PV is typically not chosen as a power source. Overall, solar fuels are unlikely to be cost-competitive in the near future when compared to market prices for all three compounds under consideration.

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Hydrogen production by coupling pressurized high temperature electrolyser with solar tower technology

Cited by 34 publications

References 14 publications

Methanol production using hydrogen from concentrated solar energy

Methanol production using hydrogen from concentrated solar energy

Impact of Heat Transfer Media on Performance of Solar-Hydrogen Power Generation

Thermo-economic evaluation and optimization of solar-driven power-to-chemical systems with thermal, electricity, and chemical storage

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