Category: Solar Fuels

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Published at Journal of Cleaner Production – Sustainable assessment of an integrated energy system coupled with solar thermochemical cycle

Abstract The energy transition globally makes the development of carbon-free and low-carbon fuels obligatory as these fuels cannot only be utilized as energy carriers but also for long-term energy storage. This paper presents the energy, technoeconomic, and environmental assessment of a new hybrid renewable energy integrated system with a novel concept of the thermochemical cycle …

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US Department of Energy lays out roadmap for LPO funding

The Department of Energy’s (DOE) Loan Programs Office (LPO) provides access to debt capital for high-impact energy and manufacturing projects. Over more than a decade, LPO has developed a strong understanding of what makes a project more likely to advance through LPO’s processes, as well as the areas that commonly slow down or stop projects in the process. …

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Published at Energy Conversion and Management – Thermodynamic and economic analysis of a multi-energy complementary distributed CCHP system coupled with solar thermochemistry and active energy storage regulation process

Abstract: The combination of distributed energy systems (DES) and solar energy is considered a vital measure to save the usage of fossil energy. A new distributed combined cooling, heating and power (CCHP) system integrated with solar thermochemistry (STC) and energy storage (ES) units is proposed. The methane steam reforming (MSR) reaction is driven by solar energy to …

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US releases rule ensuring only green hydrogen gets $3/kg tax credit

Solar reactor uses solar thermal energy to split water to hydrogen Source: Hydrogen Insight The US government has finally unveiled its long-awaited proposed rules on clean hydrogen production, determining the criteria that developers will have to meet in order to qualify for the hydrogen tax credit of up to $3 per kilogram. The proposed guidelines …

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Published at International journal of Hydrogen Energy – H2 producing hybrid solar thermochemical ZnSO4/ZnO water splitting cycle: Thermodynamic efficiency analysis

Abstract: This investigation reports the thermodynamic efficiency analysis of a hybrid ZnSO4/ZnO water-splitting cycle. The data required for efficiency calculations are gathered from HSC Chemistry Software. The prime goal is to examine the effects of the thermal energy needed for heating inert sweep gas and separating the gaseous components in the cycle on the solar-to-fuel …

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Published at Energy Reports – Chemical and thermal performance analysis of a solar thermochemical reactor for hydrogen production via two-step WS cycle

Abstract: Ceria-based H2O/CO2-splitting solar-driven thermochemical cycle produces hydrogen or syngas. Thermal optimization of solar thermochemical reactor (STCR) improves the solar-to-fuel conversion efficiency. This research presents two conceptual designs and thermal modelling of RPC-ceria-based STCR cavities to attain the optimal operating conditions for CeO2 reduction step. Presented hybrid geometries consisting of cylindrical–hemispherical and conical frustum–hemispherical structures. …

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Published at International Journal of Hydrogen Energy – Performance of biogas blended with hydrogen in a commercial self-aspirating burner

Abstract: A natural gas and carbon dioxide fuel mixture was enriched by hydrogen to experimentally measure the performance of a hydrogen and surrogate biogas fuel. The performance of various biogas qualities and hydrogen blend ratios was investigated for use in a commercial self-aspirating burner by quantifying the impact on primary air entrainment, blow-off and flashback …

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EU-funded project SUN-to-LIQUID II launches

European partner institutions from academia and industry launched the SUN-to-LIQUID II research project. This initiative will demonstrate the scalability and high efficiency of producing sustainable synthetic fuel from CO2, water, and sunlight. Synhelion is one of the industry partners for the project, providing the expertise for scaling up the prototype, developing the thermal energy storage …

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Published at Journal of Energy Storage – Human ear inspired solar thermochemical reactor for steam methane reforming with the consideration of minimum Gibbs free energy principle

Human ear inspired solar thermochemical reactor for steam methane reforming with the consideration of minimum Gibbs free energy principle Abstract The non-uniformity temperature field of direct solar thermochemical reactors severely decreases the energy conversion efficiency of solar-to-fuel. Inspired by the physical mechanism by which the human ear can collect more sound waves, associating the similarity …

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Published at Applied Energy – A novel high-efficiency solar thermochemical cycle for fuel production based on chemical-looping cycle oxygen removal

A novel high-efficiency solar thermochemical cycle for fuel production based on chemical-looping cycle oxygen removal Abstract Solar-driven two-step thermochemical cycling is a promising means to convert solar energy into storable and transportable chemical fuel, in which hydrogen or carbon monoxide is generated by continuous reduction and oxidation reactions. However, the high energy consumption of deoxygenation …

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