Article
Chemistry, Multidisciplinary
Hiroshi Machida, Ryusei Hashiride, Ritsuka Niinomi, Keiichi Yanase, Mikiro Hirayama, Yoshito Umeda, Koyo Norinaga
Summary: This technology proposes an alternative concept of CO2 capture by using unused cold energy, which can substantially reduce the energy required. By combining a pressure swing amine process with a sublimation tank, CO2 can be cooled into dry ice. Process simulation shows that operating the absorber and desorber at specific temperatures can achieve a low energy requirement of 0.25 GJ/ton CO2.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Engineering, Chemical
Yulong Zhao, Hongmei Diao, Wenjie Li, Zhiwei Xuan, Qi Zhang, Yulin Wang, Minghui Ge
Summary: The integration of a gasifier with a thermoelectric generator for LNG gasification allows the recovery of cold energy and its conversion to useful power. The study developed a thermoelectric model for an annular thermoelectric module and examined the influence of its structure and heat transfer parameters on performance. The results showed that optimizing the height of the thermoelectric leg and increasing the heat transfer coefficients can improve conversion efficiency.
Article
Energy & Fuels
Alberto Maria Gambelli, Yan Li, Federico Rossi
Summary: This study investigates the thermodynamic and kinetic features of the methane replacement process using CO2-N-2 mixed gas. The results show that the conditions for hydrate formation in the mixed gas are gentler, with the lowest concentration of CO2 in the gaseous phase at a 50% CO2 concentration. The capture rate of N-2 and CO2 increases with decreasing N-2 concentration.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Thermodynamics
Khaled H. M. Al-Hamed, Ibrahim Dincer
Summary: This study introduces a new multigeneration gas turbine-supercritical carbon dioxide combined power cycle integrated with a solar-powered carbon capturing system. The system can produce electricity, cooling effect, freshwater, and ammonium bicarbonate. Parametric studies show that solar irradiance and changes in turbine isentropic efficiencies have significant effects on system performance, particularly on net electric power production.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Thermodynamics
Chong Wei Ong, Cheng-Liang Chen
Summary: This study focuses on the investigation of a CO2-capturing oxy-combustion CO2 power system integrated with LNG cold energy utilization, demonstrating high net power output, energy efficiency, CO2 recovery rate, and CO2 capture purity.
Article
Environmental Sciences
Muntasir Murshed, Risana Alam, Adiba Ansarin
Summary: The study in Bangladesh on the environmental Kuznets curve hypothesis suggests that natural gas and liquefied petroleum gas can serve as transitional fuels to mitigate environmental pollution by reducing carbon dioxide and greenhouse gas emissions. Additionally, consumption of coal and refined petroleum oil leads to environmental degradation, highlighting the need for Bangladesh to balance economic expansion and environmental protection.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Siamak Jamali, Mortaza Yari
Summary: The study proposes an innovative system that recovers the cold energy from the liquefied natural gas regasification process and uses it to cool concentrated photovoltaics. By using cascades of organic Rankine cycles, the system improves the electrical power output and energy efficiency.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Yukino Kuwabara, Takaya Tokunaga, Tatsuya Moriyama, Masahisa Koizumi, Shiho Mizuno, Takuro Hagino, Shinpei Kusaka, Ryotaro Matsuda, Tomoyuki Yajima, Yoshiaki Kawajiri
Summary: This study proposes a CO2 capture process using temperature swing adsorption (TSA) with LNG as a cold energy source. The process can save energy cost, increase CO2 capacity, and remove water from flue gas. Comparison of different adsorbents shows that CPL-1 achieved a high recovery rate of 70% and purity of 95%. The system has the potential to capture up to 6% of CO2 emissions from Japan.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Energy & Fuels
Donggu Han, Kyungjae Tak, Jaedeuk Park, Ki Bong Lee, Jong-Ho Moon, Ung Lee
Summary: The study investigates the impact of partial liquefaction of natural gas on the efficiency of the liquefaction process, and finds a trade-off relationship between the liquefaction ratio and energy consumption. However, this trade-off can be resolved through cold energy recovery.
Article
Engineering, Chemical
Jiye Park, Jinwoo Park, Junghwan Kim
Summary: This study proposes a novel LNG cold energy multi-utilization process by integrating LHS and HYD, achieving efficient and practical LNG cold energy recovery. The results show that the process improves energy utilization by reducing exergy loss by 16.47%. It also enables the recovery of high-value materials such as liquefied ethane and liquefied petroleum gas, high-purity methane gas, and pure water.
Article
Green & Sustainable Science & Technology
Andre Bolt, Ibrahim Dincer, Martin Agelin-Chaab
Summary: This study presents a novel multigeneration system that combines solar and wind energy to store thermal energy, capture carbon dioxide emissions from steel production, and produce electricity, space heating, methane, hydrogen gas, and freshwater. The system demonstrates high energy and exergy efficiencies.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Energy & Fuels
Jinxin Yue, Juan Feng, Jingyu Chen, Rui Liu, Chengbiao Yu, Zhaomin Jiang, Xiaoyuan Chen, Boyang Shen, Lin Fu
Summary: This paper investigates a new multistage cold energy recovery/utilization system that links the cold energy from liquefied natural gas (LNG) to supply coastal cold stores efficiently. The proposed system has advantages in terms of technology, economy, and environmental benefits, saving energy and reducing carbon emissions.
ENERGY SCIENCE & ENGINEERING
(2023)
Article
Engineering, Chemical
Feng Zhou, Wenhua Cui, Lei Yang, Yan Hong, Qian Qian
Summary: This paper presents a novel multigeneration framework based on fossil fuels, which achieves high thermodynamic efficiency, low production costs for electricity and liquid carbon dioxide (CO2), and reduced pollutant emissions. The thermodynamic analysis shows a total exergy efficiency of 86% and an energy efficiency of 31.36%. The integrated system produces various products, including liquid CO2, desalinated water, natural gas, and power. The economic analysis indicates the production costs of CO2 and electricity in the proposed process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Thermodynamics
Jinwoo Park, Fengqi You, Haneul Mun, Inkyu Lee
Summary: A novel concept of energy integration using liquid air as a medium for recycling cold energy across the LNG supply chain is proposed. By utilizing LNG carrier ships to transport liquid air on return journeys, the energy efficiency of natural gas liquefaction and regasification stages is significantly improved.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Thermodynamics
Sandeep Yadav, Srinivas Seethamraju, Rangan Banerjee
Summary: This study investigates the use of cold energy from LNG regasification to meet the cooling and electrical demands of a data center. A cogeneration system based on an ORC is proposed, which can fully satisfy the cooling requirement and generate power for the data center. The system achieves high energy and exergy efficiencies and has a low levelized cost of electricity and a high internal rate of return. It also leads to a significant reduction in CO2 emissions.
Article
Green & Sustainable Science & Technology
Marzie Karimi, Mehdi Mehrpooya, Fathollah Pourfayaz
Summary: This research introduces an integrated system for large-scale hydrogen production and liquefaction, using solar energy. The system combines multiple units to produce and liquefy hydrogen. The system has high energy efficiency and performance compared to similar liquefaction cycles. The operational parameters of each subsystem and their effects on the overall system efficiency were also studied.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Mohammad Mohammad Shafie, Ali Rajabipour, Mehdi Mehrpooya
Summary: This study presents and analyzes an integrated system that includes a solid oxide fuel cell-gas turbine power plant and the electrochemical conversion of carbon dioxide to ethanol. By analyzing energy and exergy, as well as the efficiency and potential of the system, the main parameters and thermodynamic characteristics of the combined system are determined. The results show that the system has high overall efficiency and electrical efficiency.
Article
Green & Sustainable Science & Technology
Sara Bakhtavar, Mehdi Mehrpooya, Mahboobeh Manoochehri, Mehrnoosh Karimkhani
Summary: In this study, a one-pot, low-temperature synthesis method was used to fabricate heteroatom doped multiwall carbon nanotubes as electrocatalysts for oxygen reduction reaction. The characterization results showed that the doping of N, B, and S atoms increased the defects in the CNT structure, leading to improved electrochemistry performance and electron transfer rate. NB-MWCNT catalyst exhibited the best performance and electrochemical activity.
Article
Green & Sustainable Science & Technology
Mehdi Mehrpooya, Amir Ghorbani, S. M. Ali Moosavian, Yasaman Amirhaeri
Summary: This paper investigates and analyzes an integrated process of hydrogen, methanol and electricity production from municipal solid waste biomass feed. It also develops a computational model for recovering energy from the combustion chamber in a thermophotovoltaic system. The results show that efficiency of the proposed hybrid system is increased by approximately 3.5% through heat recovery.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Engineering, Environmental
Mehdi Mehrpooya, Mehran Saedi, Ali Allahyarzadeh, Seyed Ali Mousavi, Azad Jarrahian
Summary: The novel integration of hydrogen liquefaction process and cryogenic rectification of air can produce significant amounts of nitrogen, oxygen, liquid hydrogen, and crude neon. With fewer compressors and lower power consumption, the proposed cryogenic plant shows potential for high efficiency through optimization of operating parameters and integrated design.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Green & Sustainable Science & Technology
Roghayeh Habibi, Fathollah Pourfayaz, Mehdi Mehrpooya, Hamed Kamali
Summary: This study aims to simulate an environmentally friendly poly-generation system in an Iranian power plant, utilizing multiple environmentally friendly technologies to generate electricity, cooling, and high-pressure steam, while also minimizing CO2 emissions and preventing energy loss through internal streams.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Thermodynamics
Asal Sami, Mehdi Mehrpooya, Alireza Noorpoor
Summary: The study introduces a novel hydrogen production system that integrates the zinc-sulfur-iodine hydrogen production system with a heliostat solar collector and thermochemical energy storage, allowing for the production of clean hydrogen and improved process efficiency. Simulations show that the system has a high efficiency, with a solar fraction of 75.46% and reduced external energy demand.
APPLIED THERMAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Habib Shoeibi, Mehdi Mehrpooya, Ehsanolah Assaerh, Mohsen Izadi, Fathollah Pourfayaz
Summary: This study investigated a heat pump system connected to a solar collector, focusing on energy consumption, exergy and system performance. The results showed that the solar collector had the highest exergy destruction, with lower destruction during low temperature periods. The compressor had the highest exergy damage among rotating equipments.
Article
Energy & Fuels
Habib Shoeibi, Azad Jarrahian, Mehdi Mehrpooya, Ehsanolah Assaerh, Mohsen Izadi, Fathollah Pourfayaz
Summary: This study proposed a mathematical model based on heat transfer equations and simulated a CPC solar collector using Aspen HYSYS and MATLAB software. The simulated mathematical model includes a two-dimensional numerical model to describe the thermal and dynamic behavior of the fluid inside the CPC solar collector absorber tube. The numerical simulations showed a good correlation between the numerical results and experimental results.
Article
Engineering, Chemical
Yousef Abdollahzadeh, Mehdi Mehrpooya, Seyed Mohammad Ali Mousavian, Hamed Moqtaderi
Summary: A novel two-phase scheme based on the mixture model was used to model and simulate Al2O3/water nanofluid flow in a rectangular channel using the Lattice Boltzmann method. The proposed model considered the effect of drift velocity of each phase. The simulations were performed at laminar flow regime and low Reynolds numbers. The results showed good agreement with finite element method results and demonstrated the effectiveness of the proposed Lattice Boltzmann model for engineering and scientific problems.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Hamed Kamali, Mehdi Mehrpooya, Adib Shabani
Summary: As new routes for clean energy supply are investigated, thermally regenerative electrochemical refrigerators (TRERs) are being explored as a promising option in high consumption sectors. This study presents a modified TRER system integrated with TEGs and batteries, which operates during the day powered by TEGs and at night driven by batteries. Performance and sensitivity analyses are conducted, showing the maximum power output of 469.9 W from TEGs and the cooling capacity of 237 W from TRER.
Review
Engineering, Chemical
Mehdi Mehrpooya, Mohammad Reza Ganjali, Seyed Ali Mousavi, Nader Hedayat, Ali Allahyarzadeh
Summary: This study categorizes and evaluates gas detection based on electrochemical cells, focusing on fuel cell sensors such as CO, H-2, methanol, and ethanol. The research discusses the manufacturing, technologies, and operating conditions of the sensors, and provides suggestions for future investigations based on previous studies.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Mohammadreza Asadbeigi, Farzad Ghafoorian, Mehdi Mehrpooya, Sahel Chegini, Azad Jarrahian
Summary: Due to the high consumption of energy and global efforts to replace fossil fuels with clean energy, the need for high-efficiency renewable energy systems has become necessary. This paper aims to improve the aerodynamic performance of small VAWTs by examining turbine design parameters through the CFD method and utilizing the Kriging optimization model. The results show that optimizing parameters such as blade count, solidity, airfoil, and pitch angle can significantly enhance turbine performance. Additionally, the economic analysis demonstrates the feasibility and cost-effectiveness of a hybrid energy system consisting of a VAWT, battery, and converter.
Article
Green & Sustainable Science & Technology
Shayan Farajyar, Farzad Ghafoorian, Mehdi Mehrpooya, Mohammadreza Asadbeigi
Summary: In this study, a 3D-CFD simulation was conducted to investigate the impact of various design and operating parameters on the aerodynamic performance of a Savonius VAWT. It was found that a solid rotor with more buckets generated less power than a two-bladed rotor. Decreasing the overlap ratio and spacing size improved the rotor's power coefficient (Cp). Additionally, installing a curtain in the upstream section of the rotor improved Cp value by directing airflow.
Article
Green & Sustainable Science & Technology
Seyed Ali Mousavi, Ashkan Toopshekan, Mehdi Mehrpooya, Mostafa Delpisheh
Summary: The study proposes an off-grid hybrid renewable configuration consisting of PV panels, wind turbines, a battery bank, and a biogas generator to determine the most reliable and economical way to meet electricity demand in remote areas. Exergy and environmental analyses, along with techno-economic optimization, are applied to four dispatch strategies, with the results showing that PV modules had the highest share in exergy destruction. The cost-effective index indicated that the vertical tracking mode was the most cost-effective option.
Article
Thermodynamics
Yong Cheng, Fukai Song, Lei Fu, Saishuai Dai, Zhiming Yuan, Atilla Incecik
Summary: This paper investigates the accessibility of wave energy absorption by a dual-pontoon floating breakwater integrated with hybrid-type wave energy converters (WECs) and proposes a hydraulic-pneumatic complementary energy extraction method. The performance of the system is validated through experiments and comparative analysis.
Article
Thermodynamics
Jing Gao, Chao Wang, Zhanwu Wang, Jin Lin, Runkai Zhang, Xin Wu, Guangyin Xu, Zhenfeng Wang
Summary: This study aims to establish a new integrated method for biomass cogeneration project site selection, with a focus on the application of the model in Henan Province. By integrating Geographic Information System and Multiple Criterion Decision Making methods, the study conducts site selection in two stages, providing a theoretical reference for the construction of biomass cogeneration projects.
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: The current study presents a hybrid small modular nuclear reactor and solar-based system for sustainable communities, integrating floating and bifacial photovoltaic arrays with a small modular reactor. The system efficiently generates power, hydrogen, ammonia, freshwater, and heat for residential, agricultural, and aquaculture facilities. Thermodynamic analysis shows high energy and exergy efficiencies, as well as large-scale ammonia production meeting the needs of metropolitan areas. The hybridization of nuclear and solar technologies offers advantages of reliability, environmental friendliness, and cost efficiency compared to renewable-alone and fossil-based systems.
Editorial Material
Thermodynamics
Wojciech Stanek, Wojciech Adamczyk
Article
Thermodynamics
Desheng Xu, Yanfeng Li, Tianmei Du, Hua Zhong, Youbo Huang, Lei Li, Xiangling Duanmu
Summary: This study investigates the optimization of hybrid mechanical-natural ventilation for smoke control in complex metro stations. The results show that atrium fires are more significantly impacted by outdoor temperature variations compared to concourse/platform fires. The gathered high-temperature smoke inside the atrium can reach up to 900 K under a 5 MW train fire energy release. The findings provide crucial engineering insights into integrating weather data and adaptable ventilation protocols for smoke prevention/mitigation.
Article
Thermodynamics
Da Guo, Heping Xie, Mingzhong Gao, Jianan Li, Zhiqiang He, Ling Chen, Cong Li, Le Zhao, Dingming Wang, Yiwei Zhang, Xin Fang, Guikang Liu, Zhongya Zhou, Lin Dai
Summary: This study proposes a new in-situ pressure-preserved coring tool and elaborates its pressure-preserving mechanism. The experimental and field test results demonstrate that this tool has a high pressure-preservation capability and can maintain a stable pressure in deep wells. This study provides a theoretical framework and design standards for the development of similar technologies.
Article
Thermodynamics
Aolin Lai, Qunwei Wang
Summary: This study assesses the impact of China's de-capacity policy on renewable energy development efficiency (REDE) using the Global-MSBM model and the difference-in-differences method. The findings indicate that the policy significantly enhances REDE, promoting technological advancements and marketization. Moreover, regions with stricter environmental regulations experience a higher impact.
Article
Thermodynamics
Mostafa Ghasemi, Hegazy Rezk
Summary: This study utilizes fuzzy modeling and optimization to enhance the performance of microbial fuel cells (MFCs). By simulating and analyzing experimental data sets, the ideal parameter values for increasing power density, COD elimination, and coulombic efficiency were determined. The results demonstrate that the fuzzy model and optimization methods can significantly improve the performance of MFCs.
Article
Thermodynamics
Zhang Ruan, Lianzhong Huang, Kai Wang, Ranqi Ma, Zhongyi Wang, Rui Zhang, Haoyang Zhao, Cong Wang
Summary: This paper proposes a grey box model for fuel consumption prediction of wing-diesel hybrid vessels based on feature construction. By using both parallel and series grey box modeling methods and six machine learning algorithms, twelve combinations of prediction models are established. A feature construction method based on the aerodynamic performance of the wing and the energy relationship of the hybrid system is introduced. The best combination is obtained by considering the root mean square error, and it shows improved accuracy compared to the white box model. The proposed grey box model can accurately predict the daily fuel consumption of wing-diesel hybrid vessels, contributing to operational optimization and the greenization and decarbonization of the shipping industry.
Article
Thermodynamics
Huayi Chang, Nico Heerink, Junbiao Zhang, Ke He
Summary: This study examines the interaction between off-farm employment decisions between couples and household clean energy consumption in rural China, and finds that two-paycheck households are more likely to consume clean energy. The off-farm employment of women is a key factor driving household clean energy consumption to a higher level, with wage-employed wives having a stronger influence on these decisions than self-employed ones.
Article
Thermodynamics
Hanguan Wen, Xiufeng Liu, Ming Yang, Bo Lei, Xu Cheng, Zhe Chen
Summary: Demand-side management is crucial to smart energy systems. This paper proposes a data-driven approach to understand the relationship between energy consumption patterns and household characteristics for better DSM services. The proposed method uses a clustering algorithm to generate optimal customer groups for DSM and a deep learning model for training. The model can predict the possibility of DSM membership for a given household. The results demonstrate the usefulness of weekly energy consumption data and household socio-demographic information for distinguishing consumer groups and the potential for targeted DSM strategies.
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: This study explores the feasibility of utilizing a multi-level horizontal branch well heat recovery system in the Qiabuqia geothermal field. The research systematically investigates the effects of various engineering parameters on production temperature, establishes mathematical models to describe their relationships, and evaluates the economic viability of the system. The findings demonstrate the significant economic feasibility of the multi-level branch well system.
Article
Thermodynamics
Longxin Zhang, Songtao Wang, Site Hu
Summary: This investigation reveals the influence of tip leakage flow on the modern transonic rotor and finds that the increase of tip clearance size leads to a decline in rotor performance. However, an optimal tip clearance size can extend the rotor's stall margin.
Article
Thermodynamics
Kristian Gjoka, Behzad Rismanchi, Robert H. Crawford
Summary: This paper proposes a framework for assessing the performance of 5GDHC systems and demonstrates it through a case study in a university campus in Melbourne, Australia. The results show that 5GDHC systems are a cost-effective and environmentally viable solution in mild climates, and their successful implementation in Australia can create new market opportunities and potential adoption in other countries with similar climatic conditions.
Article
Thermodynamics
Jianwei Li, Guotai Wang, Panpan Yang, Yongshuang Wen, Leian Zhang, Rujun Song, Chengwei Hou
Summary: This study proposes an orientation-adaptive electromagnetic energy harvester by introducing a rotatable bluff body, which allows for self-regulation to cater for changing wind flow direction. Experimental results show that the output power of the energy harvester can be greatly enhanced with increased rotatory inertia of the rotating bluff body, providing a promising solution for harnessing wind-induced vibration energy.
