Article
Thermodynamics
Lumin Shi, Azher M. Abed, Mohamed Fayed, Zuhair R. Abdulghani, Ali E. Anqi, Mohamed Amine Khadimallah, Hazim Moria, Makatar Wae-hayee
Summary: In order to achieve a high total COP for a large-scale commercial Peltier air cooler, it is necessary to use a small input DC voltage for each individual module. However, this increases the capital, maintenance, operating, and cooling costs. Therefore, a cost economic analysis based on size is required. The findings show that an optimized number of modules can reduce the cooling cost, but further increasing the module number will eventually increase the cooling cost.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
Anna Dabrowska, Monika Kobus, Lukasz Starzak, Bartosz Pekoslawski
Summary: This paper presents a preliminary evaluation of a newly developed personal cooling system (PCS) with flexible TE modules by analyzing its cooling efficiency and power consumption. Experimental results show that TE cooling can significantly reduce local skin temperature, but the effect weakens over time. It is found that the fitting of the PCS to the human body is crucial for its cooling efficiency.
Article
Construction & Building Technology
Cesar Martin-Gomez, Amaia Zuazua-Ros, Kattalin Del Valle de Lersundi, Bruno Sanchez Saiz-Ezquerra, Maria Ibanez-Puy
Summary: The study focuses on the design and construction of Ventilated Active Thermoelectric Envelope (VATE) prototypes for heating and cooling in buildings without the use of refrigerants. Improvement in system performance was achieved through testing of prototype modules, although challenges with thermal bridges remained.
ENERGY AND BUILDINGS
(2021)
Article
Thermodynamics
Ziwen Liu, Gang Hu, Jie Wang, Yange Suo, Yanghui Ye, Guoneng Li, Zhiguo Zhang
Summary: A novel cubic two-stage thermoelectric cooler (C-TTEC) is designed and optimized for enhanced thermal performance, achieving lower temperature conditions.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Review
Chemistry, Multidisciplinary
Jiamin Ding, Wenrui Zhao, Wenlong Jin, Chong-an Di, Daoben Zhu
Summary: Flexible cooling devices are at the forefront of refrigeration technology, catering to the essential requirements of complex working environments and local heat dissipation. Through research on thermoelectric materials and the Peltier effect, rapid development has been achieved in flexible substrates.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Thermodynamics
Hazim Moria, Samira Pourhedayat, Hamed Sadighi Dizaji, Abdullah M. Abusorrah, Nidal H. Abu-Hamdeh, Makatar Wae-hayee
Summary: This research comprehensively studied the economic characteristics of Peltier module as an air cooler through experimental investigation, revealing the variation of economic features under different working conditions.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Abdelkrim Kherkhar, Younes Chiba, Abdelhalim Tlemcani, Hayati Mamur
Summary: This study uses an experimental and numerical approach to evaluate the performance and efficiency of a thermoelectric cooler (TEC). The refrigeration system is designed using a semiconductor material and Arduino device. The system efficiency is investigated through the performance coefficient and temperature span for the carrier fluid. Proportional-integral-derivative (PID) control is used to maintain temperature control and heat transfer. The results show that the proposed control system can achieve a temperature error of 0.1 degree Celsius with minimal overshoot in less than 20 seconds.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Mohammad Hemmat Esfe, Saeed Esfandeh, Davood Toghraie
Summary: This study investigated the impact of changing the thermoelectric cold surface temperature on water vapor condensation in an air-water generator system. The results showed that decreasing the temperature led to increased water production and condensation, with the highest production rate achieved at a minimum cold surface temperature of 0.323kg.m(-2).hr(-1). Furthermore, a reduction of 11 degrees C in the cold side of the thermoelectric cooling system resulted in a 36.8% increase in water production rate.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Physics, Applied
S. Bhattacharya, H. Behlow, I. Rancu, A. M. Rao, H. J. Goldsmid
Summary: We experimentally determine the thermoelectric figure-of-merit of a material using Peltier cooling, where the maximum temperature depression, delta T-max, is related to Z of a thermocouple. However, for thermocouples made of good thermoelectric materials, delta T-max can be large, making it difficult to assign the measurement to a specific temperature. In this study, we propose a procedure to measure the dimensionless figure-of-merit of a semiconductor using semiconductor-metal thermocouples, optimizing the form factor. We also investigate the impact of varying material dimensions on the delta T-max measurement. Our experiments show the significant radiation losses at ordinary temperatures and suggest minimizing radiation losses for obtaining accurate thermal conductivity and zT estimation.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Ki Mun Bang, Woosung Park, Pawel Ziolkowski, Hyungyu Jin
Summary: Stretchable electronic devices face challenges in thermal conductivity and heat dissipation. Innovative cooling platforms are required to address the heat dissipation issue. Adding alumina powder into the materials can enhance cooling performance and improve energy efficiency.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Thermodynamics
Zhen Yang, Bin He, Xiong He, Feng Luo, Jian Wang, Can Zhu, Hongxia Liu, Zhigang Sun
Summary: This paper presents a design of a thermoelectric cooling device with a double heterostructure semiconductor structure that releases the energy of the hot end in the form of photons. The performance parameters of this design are obtained through numerical simulation and analytical solution solving. The results show that this design can significantly reduce the minimum cooling temperature and improve the cooling power density and cooling capacity.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Thermodynamics
Elisa Y. M. Ang, Peng Shu Ng, Chew Beng Soh, Peng Cheng Wang
Summary: This study focuses on the application of multi-stage thermoelectric coolers (TECs) in cooling wearables. Analytical computations, detailed finite element analysis, and experiments demonstrate that multi-stage TECs can achieve lower cold side temperatures while maintaining the coefficient of performance, providing more cooling sensation to the human skin without increasing the power required per unit cooling power.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Chemistry, Physical
Ken-ichi Uchida, Takamasa Hirai, Fuyuki Ando, Hossein Sepehri-Amin
Summary: This study demonstrates the improvement of transverse thermoelectric conversion performance by utilizing magneto-transport phenomena in artificially tilted multilayers. The conversion processes of nonuniform charge currents into orthogonal heat currents are visualized using lock-in thermography techniques. By measuring the temperature change under magnetic fields, the contributions of the magneto-thermoelectric effects in the artificially tilted multilayers are quantified, and magnetically enhanced hybrid transverse thermoelectric cooling is demonstrated.
ADVANCED ENERGY MATERIALS
(2023)
Article
Thermodynamics
Radek Guras, Miroslav Mahdal, Marian Bojko
Summary: This article discusses the CFD simulation of a unique liquid cooling device that combines a two-circuit liquid cooling system with an accumulator and a cooling core consisting of Peltier modules. The simulation aims to predict cooling time, model media flow, and determine the efficiency of the device. The device achieved cooling of 2L of media in slightly over 40 min with an overall efficiency of 14.376%.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Sang J. Park, Junyoung Park, Ki Mun Bang, Jung Min Lee, Woosung Park, Pawel Ziolkowski, Hyungyu Jin
Summary: This article discusses the limitations of thermoelectric coolers (TECs) in commercial applications due to their low cooling efficiency, and proposes a design strategy of filler-embedded TECs (F-TECs) to address these challenges. The F-TECs with large power factors and thermally conductive filler material show significantly improved cooling capability and thermal stability, making them suitable for hotspot cooling applications in microprocessors, batteries, and photovoltaic cells.
APPLIED THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
Nadja Lakovic, Afrasyab Khan, Biljana Petkovic, Dalibor Petkovic, Boris Kuzman, Sead Resic, Kittisak Jermsittiparsert, Sikander Azam
Summary: In this study, a soft computing model ANFIS was used to predict the higher heating value of biomass. The analysis showed that the ash percentage weight had the highest relevance to the biomass's higher heating value.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Energy & Fuels
Momir Milic, Biljana Petkovic, Abdellatif Selmi, Dalibor Petkovic, Kittisak Jermsittiparsert, Aleksandar Radivojevic, Milos Milovancevic, Afrasyab Khan, Sladana T. Vidosavljevic, Nebojsa Denic, Boris Kuzman
Summary: This study optimized the predictors for fatty acid methyl ester yield and exergy efficiency in situ transesterification process. The results showed that the optimal combination for fatty acid methyl ester yield was ultrasonic power and reaction time, while the optimal combination for exergy efficiency was concentrations of methanol and chloroform in oil. These optimized predictors effectively improved the fatty acid methyl ester yield and exergy efficiency.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Thermodynamics
Jialing Li, Zuhair R. Abdulghani, Mohammed N. Alghamdi, Kamal Sharma, Hakeem Niyas, Hazim Moria, Akbar Arsalanloo
Summary: In this study, the performance enhancement of a shell and tube latent heat thermal energy storage (LHTES) system using twisted fins was assessed. The results showed that the triple fin in vertical orientation and double fin in horizontal orientation had the best effect on melting enhancement and exergy efficiency of the phase change material.
APPLIED THERMAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
A. A. I. N. Marhaeni, Kittisak Jermsittiparsert, Lucia Rita Sudarmo, Lucia Rita Indrawati, Andjar Prasetyo, Noviati Fuada, Arnis Rachmadhani, Tri Weda Raharjo, Heri Wahyudianto, Bekti Putri Harwijayanti, Jonni Sitorus, Mochammad Fahlevi, Mohammed Aljuaid
Summary: This study examines people's behavior in financial transactions and the practice of rural credit banks in promoting a green economy. The results indicate that using paper for savings transactions supports green economic initiatives. Additionally, the use of branchless banking demonstrates the penetration of financial literacy in the community.
Article
Green & Sustainable Science & Technology
Pannee Suanpang, Pitchaya Jamjuntr, Phuripoj Kaewyong, Chawalin Niamsorn, Kittisak Jermsittiparsert
Summary: This paper proposes an intelligent public-accessible charging station framework based on Spatio-Temporal Multi-Agent Reinforcement Learning (STMARL), considering long-term spatio-temporal parameters. The framework aims to reduce the overall charging wait time, average charging price, and charging failure rate for electric vehicles (EVs).
Article
Energy & Fuels
Gongxing Yan, Bin Teng, Azher M. Abed, Ahmed Deifalla, Hossein Mehdizadeh Youshanlouei, Zuhair R. Abdulghani, Hazim Moria
Summary: Buildings consume a large amount of energy for cooling and heating, but the use of smart materials or phase change materials (PCMs) can help prevent heat loss. This study designed a PCM-filled envelope with a melting temperature of 16.5 degrees C for use in buildings' roofs and floors. The results showed that the phase change line was perpendicular to gravity due to high buoyant force, and the inclination angle played a vital role in the PCM melting process. Additionally, the indoor space of the building remained safe from hot outdoor air for at least 9 hours under the worst solar heat flux.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Multidisciplinary
Hazim Moria
Summary: This study evaluates the thermal performance of various wire cross-section shapes of spring-wire in curved helical and spiral tubes through numerical simulations. The results show that spring-wire with a triangular cross section can provide higher thermal performance and Nu number. However, there is an increase in pressure drop, which depends on the application of the heat exchanger.
AIN SHAMS ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Lumin Shi, Azher M. Abed, Mohamed Fayed, Zuhair R. Abdulghani, Ali E. Anqi, Mohamed Amine Khadimallah, Hazim Moria, Makatar Wae-hayee
Summary: In order to achieve a high total COP for a large-scale commercial Peltier air cooler, it is necessary to use a small input DC voltage for each individual module. However, this increases the capital, maintenance, operating, and cooling costs. Therefore, a cost economic analysis based on size is required. The findings show that an optimized number of modules can reduce the cooling cost, but further increasing the module number will eventually increase the cooling cost.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Amro H. Al-Tohamy, Olatomide G. Fadodun, Amr Kaood
Summary: This paper investigates the turbulent hydrothermal performance of boehmite/water-ethylene glycol nanofluid flowing through a square duct with various coiled-wire inserts. The study examines the effect of Reynolds number, wire geometry, nanoparticle volume ratio, and nanoparticle shapes on hydrodynamic and convective heat transfer performance. The results show that the combination of coiled-wire inserts and nanofluid enhances hydrothermal performance.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Retraction
Energy & Fuels
Nadja Lakovic, Afrasyab Khan, Biljana Petkovic, Dalibor Petkovic, Boris Kuzman, Sead Resic, Kittisak Jermsittiparsert, Sikander Azam
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Engineering, Multidisciplinary
Hazim Moria
Summary: The thermal performance of non-circular cross section spring wires as turbulators in spiral-tube based heat exchangers is influenced by the spring diameter, spring pitch, and wire diameter. The triangular, rectangular, hexagonal, square, and circular shapes were investigated, with the triangular shape showing the highest enhancement in Nu number. However, the order of effectiveness can vary depending on the specific conditions and geometric parameters.
RESULTS IN ENGINEERING
(2023)
Article
Thermodynamics
Man-Wen Tian, Abdulaziz Alanazi, Mohana Alanazi, Hazim Moria, Khaled S. Al-Zahrani, Shaker A. Reda
Summary: A novel grid annular fin-based heat exchanger with porous inserts is proposed in this paper, which can boost the output power of the ATEG up to 1.45 and 2.12 times compared to conventional pipe-based heat exchangers. A comprehensive parametric analysis is carried out to investigate the impact of various geometric and operational parameters on thermal, exergetic, and economic factors. An optimized value of height, length, and angle of the porous insert can maximize the output power of the proposed system. Economic analysis is also provided to identify the corresponding costs of the heat exchanger for the heat recovery aim.
APPLIED THERMAL ENGINEERING
(2023)
Review
Nanoscience & Nanotechnology
A. S. Najm, Vidhya Selvanathan, Thaar M. Aljuwaya, Laith S. Sabri, M. S. Jamal, Asla Abdullah Al-Zahrani, Araa Mebdir Holi, Israa Jaber, Ahmed Al Ghamdi, Majdi T. Amin, K. Sopian, Raid A. Ismail, Hazim Moria, Badariah Bais, Hasan Sh Majdi, Shahariar Chowdhury, Abbas J. Sultan, Thaqal M. Alhuzaymi
Summary: This article reviews the methods of sensitizing solar cells and discusses the strategies and prospects of quantum dot solar cells. It provides technical support and a theoretical basis for improving industrial applications and performance.
Article
Engineering, Multidisciplinary
Hao Wang, Gongxing Yan, Elsayed Tag-Eldin, Rishabh Chaturvedi, Yashar Aryanfar, Jorge Luis Garcia Alcaraz, Majdi Talal Amin, Hazim Moria
Summary: This paper proposes a geothermal power generation system that combines a single flash geothermal cycle with a transcritical carbon dioxide recovery cycle, contributing to the efficient utilization of geothermal energy. The effects of different parameters on energy efficiency, exergy efficiency, and net power output are investigated. The proposed system exhibits significantly higher values in terms of net power output (401.40 kW), energy efficiency (53.6%), and exergy efficiency (46.32%) compared to the basic mode (149.9 kW, 2.39%, and 12.12%, respectively).
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Ahmed Rahmah Al-darraji, S. A. Marzouk, Ahmad Aljabr, Fahad Awjah Almehmadi, Saeed Alqaed, Amr Kaood
Summary: Vertical shell and tube heat exchangers are crucial in industrial processes due to their high heat transfer efficiency, versatility, compact size, easy maintenance, and longevity. This research investigates the influence of air bubbles injection inside the shell with different baffles configurations on the hydrothermal performance, which has not been addressed before. Experimental and numerical analyses were conducted, and it was found that the DRCHB configuration with air injection achieved the highest effectiveness, while the DRCHB configuration without air injection had the lowest pressure drop.
APPLIED THERMAL ENGINEERING
(2024)
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.
