Article
Energy & Fuels
Julien Mouli-Castillo, Niklas Heinemann, Katriona Edlmann
Summary: This study introduces a globally applicable methodology for matching hydrogen storage with energy demand in order to address the decarbonization challenges in the domestic heating sector. Using the UK domestic heating system as a case study, it demonstrates that only a few offshore gas fields are needed to store enough hydrogen energy to balance seasonal demand.
Article
Biochemistry & Molecular Biology
Tianchao Xie, Shaojun Xia, Jialuo Huang, Chao Wang, Qinglong Jin
Summary: Ammonia is studied for solar thermal chemical energy storage and hydrogen production with the use of finite-time thermodynamics. The effects of various factors on system performances are analyzed, providing guidance for the engineering application of ammonia solar energy storage systems and solar hydrogen production.
Article
Energy & Fuels
Neelesh Soni, Debojit Sharma, Mustafa M. Rahman, Prashanth R. Hanmaiahgari, V. Mahendra Reddy
Summary: A novel solar thermal energy storage system for house heating is modeled, utilizing a parabolic collector to charge a block with compressed CO2 for winter heating. A mathematical model calculates energy storage, consumption, and losses, determining optimal block volume to meet heating demand. Computational analysis showed initial charging taking 55.2 days, with max temperature and stored energy of 324.2 degrees C and 2604 MJ, respectively.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
Xufei Yang, Dongliang Sun, Jingfa Li, Changyong Yu, Yajun Deng, Bo Yu
Summary: This study presents a demonstration project of a ground source heat pump heating system with seasonal and diurnal solar thermal energy storage for greenhouse heating. Experimental results show that this heating system has advantages for greenhouses in cold regions and improves system performance.
JOURNAL OF ENERGY STORAGE
(2022)
Review
Energy & Fuels
Xu Qiao, Xiangfei Kong, Man Fan
Summary: Researchers are increasingly interested in the potential of solar energy, especially for heating in the building sector. The integration of phase change materials with solar heating systems shows promise, but comprehensive evaluations and applications are still lacking.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Green & Sustainable Science & Technology
Abdulrahman M. Abomazid, Nader A. El-Taweel, Hany E. Z. Farag
Summary: This article introduces an energy management system (EMS) model for a renewable hydrogen production system, aiming to achieve economic and operational benefits. The model controls the operation of the electrolyzer by minimizing hydrogen production costs and allows for seasonal hydrogen storage. Four case studies demonstrate the techno-economic benefits of the proposed model.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Ali Dezhdar, Ehsanolah Assareh, Neha Agarwal, Ali Bedakhanian, Sajjad Keykhah, Ghazaleh Yeganeh Fard, Narjes Zadsar, Mona Aghajari, Moonyong Lee
Summary: This study investigates a renewable system using wind and solar energies for electricity production, cooling, and heating. Performance analysis of six cities in Iran reveals that the number of solar panels, wind turbines, and fuel cells significantly affect power, fuel consumption, and costs. The results show that the suggested system can satisfy the demand for residential units for one year.
Article
Biochemistry & Molecular Biology
Andreas Thangam, Amar Auckaili, Mohammed Farid
Summary: This study investigated the impact of individual and combination of different sources of heating in a building containing phase change material (PCM) for a potential reduction in energy consumption while maintaining thermal comfort. The study found that combining active and passive solar heating with temperature-controlled electric oil heater can provide significant energy savings and maintain thermal comfort.
Article
Multidisciplinary Sciences
Kristina Lebedeva, Lana Migla, Tatjana Odineca
Summary: The growing urban population has led to an increase in energy demand, which requires finding a secure, environmentally friendly, flexible, renewable and sustainable energy transformation system. District energy networks offer a promising solution. This article focuses on a best practice project in Latvia, which demonstrates the impact of solar energy on a district heating system. Through simulation and validation, it is shown that a fully renewable district heating system can cover up to 20% of the heating demand using solar collectors with thermal storage.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Thermodynamics
Tianrun Yang, Wen Liu, Qie Sun, Weihao Hu, Gert Jan Kramer
Summary: This study proposes an integrated optimization criterion to examine the influence of local context on the optimal configuration planning, techno-economic-environmental performance, and feasibility of STES application. It identifies the position of STES in comparison to other sustainable heating options considering the local context, highlighting the importance of the local context in determining the feasibility of STES in the clean heating transition.
Article
Thermodynamics
Shaoliang Zhang, Shuli Liu, Jihong Wang, Yongliang Li, Zhibin Yu
Summary: Insufficient heating capacity and low coefficient of performance have hindered the application of air source heat pump systems in cold regions. This study proposes an indirect expansion solar-assisted air source heat pump system to improve the heating performance. An optimized control method is proposed to tackle the refrigerant redistribution problem. The experimental results show that the solar heat pump mode has a higher coefficient of performance compared to the air source heat pump mode.
APPLIED THERMAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Xianhua Bai, Sipu Li, Yufan Zhang, Shilei Zhu, Linjie Gao, Ridong Cong, Wei Yu, Shufang Wang, Baolai Liang, Yaguang Li
Summary: The study found that Ni/G/MoS2 is active and stable for hydrogen production from thermocatalytic formic acid decomposition without CO production, achieved with the help of a reaction device heated by Cu2Se. This provides a new perspective for large-scale CO-free hydrogen production in a sustainable and environmentally friendly manner.
Article
Energy & Fuels
Zhanchao Li, Min Xu, Xiulan Huai, Caifeng Huang, Kejian Wang
Summary: Thermochemical energy storage, particularly the use of MgO/Mg(OH)(2) system, shows great potential for seasonal solar thermal energy storage in China. By reducing the required solar collector areas compared to traditional water storage tank systems, the efficiency of seasonal thermochemical energy storage is significantly improved, especially in regions with abundant solar energy supply.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Xiaoyue Zhang, Yahui Sun, Shunlong Ju, Jikai Ye, Xuechun Hu, Wei Chen, Long Yao, Guanglin Xia, Fang Fang, Dalin Sun, Xuebin Yu
Summary: This paper demonstrates a concept of solar-driven reversible hydrogen storage of metal hydrides by utilizing the photothermal effect and catalytic role. The photothermal effect of Cu@MXene raises the temperature of the hydrogen storage material, while the hydrogen pump effect of Ti and TiHx species formed on the surface of MXene reduces the operating temperature, achieving efficient hydrogen storage.
ADVANCED MATERIALS
(2023)
Article
Thermodynamics
Amirmohammad Behzadi, Sasan Sadrizadeh
Summary: This study proposes an innovative and cost-effective solution for intelligent building energy systems, utilizing renewable energy sources to produce, store, and use hydrogen. Through rule-based control, the smart model reduces peak capacity, emissions, and energy costs. Analysis shows significant energy and cost savings, as well as CO2 reduction compared to conventional systems. Additionally, the system's performance is influenced by fuel cell current and electrode area. The proposed smart system can supply the building's energy needs for over 300 days through its bidirectional connection with heating and electrical networks. The contribution of the vanadium chloride cycle and electrolyzer highlight the importance of renewable hybridization in reducing dependence on energy networks.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Physical
Saif ZS. Al Ghafri, Caitlin Revell, Mauricio Di Lorenzo, Gongkui Xiao, Craig E. Buckley, Eric F. May, Michael Johns
Summary: A comprehensive techno-economic assessment demonstrates the viability of a complete hydrogen supply chain based on the transport of liquefied natural gas (LNG), which can significantly reduce CO2 emissions and meet targeted hydrogen supply costs up to 2050. Steam methane reforming (SMR) with carbon capture and storage (CCS) is the most cost-effective and has the lowest CO2 emission intensity among the assessed hydrogen production technologies. Future technologies and strategies can further reduce cost and supply chain emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Thomas A. Hales, Kasper T. Moller, Terry D. Humphries, Anita M. D'Angelo, Craig E. Buckley, Mark Paskevicius
Summary: Metal dodecaborate salts are highly tunable ion conductors. By replacing a [B-H] unit with a Pb atom, the crystal structure of alkali metal salts can be modified to enhance ion conductivity. Li2B11H11Pb center dot xH2O exhibits similar superionic conductivity to LiCB11H12, while Na2B11H11Pb center dot xH2O and the potassium salt show lower conductivities. The divalent B11H11Pb2- anion in the dodecaborate cage may contribute to the weaker ion conductivity compared to CB11H12-. However, the insertion of a lead atom shows promise in enabling high ion conductivity in the solid state.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Amanda Berger, Ainee Ibrahim, Craig E. Buckley, Mark Paskevicius
Summary: Due to insufficient resources, high cost, and safety concerns of Li-ion batteries, alternative technologies are being explored. Multivalent metal batteries with solid-state electrolytes show potential for future battery applications. Divalent hydrated closo-monocarborane salts demonstrate improved ionic conductivity and oxidative stability as solid-state electrolytes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Ainee Ibrahim, Mark Paskevicius, Craig E. E. Buckley
Summary: As the demand for renewable energy increases, the development of energy storage and distribution solutions becomes crucial. Hydrogen, with its high gravimetric energy density, is an abundant energy source that can be used in fuel cells to generate electricity, producing only water vapor as a by-product. In order to improve the volumetric energy density in storage tanks for hydrogen storage and refueling stations, hydrogen compression is required. It is suggested that sodium borohydride (NaBH4), a hydrogen carrier, could be used to transport and chemically compress hydrogen for refueling stations, and the study has demonstrated the chemical compression of hydrogen to over 1000 bar using hydrolysis or methanolysis of NaBH4. Interest has been growing in improving the cost of closed-cycle regeneration of NaBH4 as an energy carrier, and a cost and efficiency analysis shows that it may be cost competitive with alternative methods of hydrogen transport.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Physical
Sruthy Balakrishnan, Terry D. Humphries, Mark Paskevicius, Craig E. Buckley
Summary: Calcium hydride has shown potential as a hydrogen storage and thermochemical energy storage material, but its high operating temperature has limited its application and research on its hydrogen sorption thermodynamics. This study provides experimental data on the thermodynamic properties and activation energy of CaH2 in both solid and molten states, filling the gap in the thermodynamics of the Ca-H system for the first time in over 60 years.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Kyran Williamson, Kasper T. T. Moller, Anita M. M. D'Angelo, Terry D. D. Humphries, Mark Paskevicius, Craig E. E. Buckley
Summary: This study introduces a new reactive carbonate composite (RCC) that uses Fe2O3 to destabilize BaCO3 and reduce its decomposition temperature, making it more suitable for thermal energy storage. The RCC demonstrates promising potential for next-generation thermal energy storage due to its low cost and high energy density. The thermodynamic parameters for the reversible CO2 reactions were determined and found to be significant for the RCC.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Lucie Desage, Terry D. Humphries, Mark Paskevicius, Craig. E. Buckley
Summary: Thermochemical energy storage has the potential to enable large-scale storage of renewable energy by integrating with power production facilities. The use of metal hydrides, particularly calcium hydride with the addition of aluminium, allows for lower operating temperatures and excellent working conditions for thermal energy storage.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Physical
Thomas A. Hales, Kasper T. Moller, Terry D. Humphries, Anita M. D'Angelo, Craig E. Buckley, Mark Paskevicius
Summary: Metal substituted dodecaborate anions coupled with alkali metal cations show promise as solid-state ion conductors for batteries. Substituting a B-H unit in an unsubstituted dodecaborate cage with a tin atom produces a stable and polar divalent anion, resulting in improved ion conductivity. Li2B11H11Sn exhibits high ion conductivity at 130 degrees C, similar to LiCB11H12, but achieving high ion conductivity at room temperature is challenging.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)