Article
Thermodynamics
C. Ortiz, R. Chacartegui, J. M. Valverde, A. Carro, C. Tejada, J. Valverde
Summary: The paper proposes the integration of a Thermochemical Energy Storage (TCES) system in combined cycles to increase the share of solar power and predicts high efficiencies.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Thermodynamics
Julio Bravo, Ahmed Abdulridha, Shuoyu Wang, Dominic Matrone, Zheng Yao, Sudhakar Neti, Clay Naito, Spencer Quiel, Muhannad Suleiman, Carlos Romero
Summary: One of the options for achieving the 1.5 degrees C global temperature limitation target is to integrate energy storage with fossil-fired power plants. In this study, a thermal battery cell (TBC) capable of operating at high temperatures was developed for efficient heat transfer and energy storage using concrete as the storage medium. The TBC demonstrated a thermal storage capacity of 150 kWhth and rapid discharge, making it suitable for fast ramping when integrated with fossil fuel-fired power plants. The overall energy-to-energy round trip efficiency of the TBC was achieved to be 70%.
Article
Energy & Fuels
Gabriele Humbert, Yulong Ding, Adriano Sciacovelli
Summary: This paper addresses the need to enhance heat and mass transfer in solid-gas reactive beds by proposing the use of branched fins made of high conducting material. The optimal fin designs are derived through surrogate models and the results show that the use of optimized branched fins can increase the discharged energy by up to +9.1%. However, in reactive beds where heat and mass transfer mainly occur along the same direction, bifurcations in the fins may hinder reactant transfer, reducing thermal performance.
Article
Energy & Fuels
Peyman Pourmoghadam, Mehdi Mehrpooya
Summary: This study investigates the use of TCES system with calcium hydroxide as the material and a steam Rankine power cycle for power production in a parabolic dish solar power plant. It shows that controlling the steam turbine's inlet pressure can improve the system's performance by reducing energy losses and increasing the solar fraction. Additionally, economic analysis reveals that Yazd has the best economic results with a shorter payback period and lower LCOE compared to other cities.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Thermodynamics
C. Ortiz, C. Tejada, R. Chacartegui, R. Bravo, A. Carro, J. M. Valverde, J. Valverde
Summary: This research proposes integrating a high-temperature thermochemical energy storage cycle into solar combined cycles to enhance the solar contribution. The novel solar combined cycle analyzed in this work significantly increases the annual solar share and demonstrates high plant efficiencies and dispatchability.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Energy & Fuels
Xingqi Ding, Liqiang Duan, Yufei Zhou, Libo Yang, Meng Li, Fangcheng Tian, Chao Gao
Summary: Liquid air energy storage (LAES) is a promising technology for balancing electricity demand and supply, but its efficiency is still relatively low. This study proposes a novel LAES system coupled with thermochemical energy storage (TCES) and gas turbine combined cycle (GTCC) to improve the system's round trip efficiency (RTE) and energy utilization rate (EUR). Thermodynamic analysis and economic assessment reveal that the LAES-TCES-GTCC system achieves the highest RTE (123.07%) and EUR (88.74%) compared to the baseline LAES (B-LAES) and improved LAES (I-LAES) systems. Furthermore, the LAES-TCES-GTCC system demonstrates the best economic feasibility with a net present value of $24.08 million and a dynamic payback period of 7.29 years.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Chen Wang, Qi Cui, Zhaofeng Dai, Xiaosong Zhang, Lu Xue, Zhanping You, Xiaohui She
Summary: This study proposes a novel configuration for liquid air energy storage (LAES) system, which utilizes pressurized fluids to recover and store cold energy, thus increasing cold storage density and reducing costs.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Yarkin Gevez, Ibrahim Dincer
Summary: This paper proposes and investigates a novel multigenerational integrated system that is capable of producing various commodities for a community using solar and geothermal energy sources. The system provides power, heat, hot water, and freshwater using heat storage, thermochemical cycle, desalination plant, solar power tower, and organic Rankine cycle. The system is thermodynamically analyzed and its performance is studied under different ambient and working conditions.
Article
Thermodynamics
Shayan Sadeghi, Samane Ghandehariun, Behnaz Rezaie
Summary: This paper proposes an innovative multigeneration energy system driven by solar energy, utilizing a high-temperature solar power tower technology and specific thermochemical cycles to generate electricity, steam, hydrogen, and oxygen. The intermittency of solar energy is managed through the use of high-temperature ternary eutectic phase change materials, while system performance is improved through heat recovery.
APPLIED THERMAL ENGINEERING
(2021)
Article
Chemistry, Physical
Kelvin Randhir, Michael Hayes, Philipp Schimmels, Joerg Petrasch, James Klausner
Summary: This work presents a unique thermochemical process for charging magnesium-manganese-oxide-based solid-state rechargeable redox fuel. The high-temperature heating of the system can be driven by renewable electricity or concentrated solar power. The main focus of this work is achieving solid flowability at high temperatures and extracting chemically charged solid at ambient temperature with minimal energy loss. The operation strategies described in this work have achieved high system and thermal-to-chemical efficiency, which are the highest reported to date for thermochemical fuels.
Article
Chemistry, Multidisciplinary
Michael Adedeji, Muhammad Abid, Humphrey Adun, Ayomide Titus Ogungbemi, David Alao, Juliana Hj Zaini
Summary: This study models and analyzes a combined heat and power (CHP) system powered by methane gas. An exergoenvironmental analysis is performed and the results demonstrate high energy and power efficiencies of the system. The stability and sustainability of the system are further examined by varying input parameters.
APPLIED SCIENCES-BASEL
(2022)
Article
Energy & Fuels
K. Sarath Babu, E. Anil Kumar
Summary: A novel compressor operated resorption thermochemical energy storage system (CRTES) is proposed for heat storage, combined cooling and heat upgradation. The system utilizes halide salt-ammonia working pairs and has been analyzed for its thermodynamic performance using different salt combinations. FeCl2-NaBr and SrCl2-KI were found to have the highest heat up gradation and energy storage efficiency, respectively.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Zhaozhao Gao, Wei Ji, Luna Guo, Xiaoyu Fan, Junjie Wang
Summary: A system that integrates combined cycle power plants and liquid air energy storage has been proposed to maximize the recovery of waste heat and cold energy, achieving bidirectional peak shaving. The efficiency of the system can reach 99.39%, making it economically preferable. Additionally, the economic performance of the system deteriorates as temperatures increase within the ranges studied for compressor and air turbine inlet temperatures.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Energy & Fuels
Ting Chen, Anping Wan, Qiang Zuo, Zipeng Tang, Yunchan Shin, Jiahong Fu, Luoke Hu
Summary: A combined cooling system of adsorption cooling system and ice slurry thermal energy storage is proposed to improve the performance and power output of a conventional combined cycle power plant (CCPP). A simplified model is developed to predict the CCPP power output under different inlet air temperatures, which is verified with practical operational data. The power outputs and economic analyses of CCPP-CombC with different cooling energy storage scales are evaluated. For the present CCPP, AdCS with a maximum cooling capacity of 6000 kW and ISTES with 600 GJ of cooling energy storage completely cover the cooling demand of the CCPP. The net profit of the CCPP-CombC increases first and then decreases, with the maximum net profit appearing when the cooling energy storage is 500 GJ.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Jiali Deng, Changdong Gu, Haoran Xu, Gang Xiao
Summary: This study investigates a modification method for improving the sintering resistance and redox activity of metal oxide-based energy storage systems. By decorating MgCr2O4 on the CuO/Cu2O surface, the sintering temperature is effectively increased and the sintering problem is alleviated. The modified material shows improved re-oxidation degree and reaction time, as well as high thermochemical energy density. Furthermore, the study reveals the modification mechanism and provides guidance for the design of thermochemical energy storage materials with sintering resistance and redox activity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Thermodynamics
Michael Angerer, Steffen Kahlert, Hartmut Spliethoff
Article
Energy & Fuels
Christian Schuhbauer, Michael Angerer, Hartmut Spliethoff, Frank Kluger, Helmut Tschaffon
Article
Energy & Fuels
Michael Angerer, Moritz Becker, Stefan Haerzschel, Konstantin Kroeper, Stephan Gleis, Annelies Vandersickel, Hartmut Spliethoff
