Article
Chemistry, Multidisciplinary
Jose Antonio Velez Godino, Miguel Torres Garcia
Summary: The current context of the climate emergency calls for the decarbonization of the energy sector through the adoption of renewable energy sources. Concentrating solar power (CSP) technology has emerged as a commercially viable alternative, although it is hampered by high production costs and the challenge of managing production during temporary variations in solar resource availability. This study proposes the hybridization of CSP technology with direct biomass combustion, presenting an innovative process scheme that deviates from traditional configurations. The techno-economic evaluation of this novel configuration in a small-scale power plant reveals the potential for a cost-effective and sustainable energy solution.
APPLIED SCIENCES-BASEL
(2023)
Article
Thermodynamics
Farid Jalili Jamshidian, Shiva Gorjian, Mehdi Shafieefar
Summary: This study integrated a solar combined heat and power system with reverse osmosis and multi-effect distillation plants for seawater desalination. Mathematical modeling and economic evaluation revealed that the integration can increase total recovery and reduce total cost of freshwater production under specific scenarios.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Green & Sustainable Science & Technology
Mingxi Xie, Teng Jia, Yanjun Dai
Summary: The article introduces a solution to transform decommissioned thermal power plants into hybrid PV/SC power plants combined with agriculture. The research finds that this transformation significantly increases power generation, reduces carbon emissions, and creates substantial economic benefits, which is crucial for the transition to renewable energy and lower carbon emissions.
Article
Thermodynamics
Xiaodong Xue, Wei Han, Zefeng Wang, Hongguang Jin, Xiaodong Wang
Summary: A solar-coal thermochemical hybrid power generation system based on supercritical water gasification is proposed in this paper, which utilizes concentrated solar energy to provide reaction heat for the gasification process at a low temperature. Through energy and exergy analysis, it is found that the proposed system achieves higher net power generation efficiency and exergy efficiency compared to the reference system. The thermochemical method significantly increases the chemical energy of the syngas produced by approximately 29.70%. The proposed system eliminates the need for an air separation unit and syngas purification unit, providing a promising method for the complementary utilization of solar energy and coal.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Ivan T. Oloya, Tar Jl Gutu, Muyiwa S. Adaramola
Summary: There is increasing interest in solar PV installations in Uganda, however, little information is available on the performance of solar PV systems in the country. This paper presents a performance analysis of a 10 MW solar-photovoltaic plant in Soroti City, Eastern Uganda, showing that it is economically viable.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Seokwon Yun, Sunghoon Lee, Mun-Gi Jang, Jin-Kuk Kim
Summary: This work systematically evaluates the economic implications of introducing absorption and membrane capture technologies to a power plant. Cost diagrams are used to estimate the cost of electricity, CO2 capture, and avoidance cost of CO2 capture-integrated power plant, allowing for fair comparison of different capture technologies. The detailed breakdown of key costing elements between the power plant and the capture plant provides insights for research and development direction.
Article
Thermodynamics
Enkhbayar Shagdar, Yong Shuai, Bachirou Guene Lougou, Azeem Mustafa, Dashpuntsag Choidorj, Heping Tan
Summary: This paper examines a novel integration mechanism of solar energy into a coal-fired power plant to improve performance and techno-economic feasibility. The study shows that the solar coal hybrid power generation system performs best in June and worst in December, with similar performance in March and September.
Article
Green & Sustainable Science & Technology
Su Been Seo, Eun Sol Go, Jester Lih Jie Ling, See Hoon Lee
Summary: The study evaluated the economic feasibility of a solar-assisted biomass gasification combined heat and power plant, showing that the solar-assisted biomass process had higher economic feasibility compared to a biomass-only process, and the additional income from carbon credit pricing played a significant role.
Article
Thermodynamics
A. Arabkoohsar, M. Sadi
Summary: An analysis was conducted on the energetic and thermodynamic performance of a novel hybrid configuration of solar parabolic trough collectors-waste incineration power plant in Denmark, aiming to evaluate the advantages and shortcomings of the system. The study found that the steam generator and turbine contributed to the highest rates of irreversibility, and environmental benefits and overall cost of energy production were quantified and compared to other power plants.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Hui Yan, Daotong Chong, Zhu Wang, Ming Liu, Yongliang Zhao, Junjie Yan
Summary: A revised control strategy for a solar-aided coal-fired power plant is proposed to enhance energy conversion and stability. Experimental results show that the strategy improves power stability and reduces energy fluctuations.
Article
Economics
Ling Chu, Kenji Takeuchi
Summary: This study investigates the impact of the amended FIT policy on non-operating solar projects in Japan, finding that the policy improved the relationship between approved and operating capacity, with varying impacts across different sizes of solar projects. Municipalities with higher construction costs were identified as having non-operating projects. These findings provide insights on supporting renewable energy through policy revisions and offer lessons for designing effective energy policies in other countries or regions.
Article
Thermodynamics
R. P. Merchan, M. J. Santos, J. Garcia-Ferrero, A. Medina, A. Calvo Hernandez
Summary: This study simulates a hybrid central tower thermo-solar plant working with a gas turbine using an in-house developed model and software, considering integration of all plant subsystems and the efficiency factors of the heliostat solar field. The fast, flexible and precise model allows for sensitivity studies on the plant efficiency and design parameters, with a focus on the levelized cost of electricity and the key parameters affecting it, such as turbine inlet temperature and solar receiver aperture size.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Di Wang, Xinrui Han, Haoyu Li, Xiaoli Li
Summary: In order to improve the energy utilization efficiency of solar-coal hybrid power plants, a solar power tower plant with the supercritical CO2 (S-CO2) Brayton cycle is proposed. A dynamic mathematical model is established using the lumped parameter method and the thermodynamic performance of the system is analyzed using exergy and energy analysis methods. The results show that the proposed model has an error of less than 5%. Exergy analysis reveals that exergy destruction mainly occurs in the heat exchanger, followed by the recuperator and precooler. Additionally, the thermal efficiency of the S-CO2 solar units is improved by approximately 2.5% after coupling with coal-fired thermal power units. The proposed dynamic mathematical model can be used to analyze the dynamic characteristics and achieve high solar power generation efficiency, providing a reference for the efficient utilization of solar-coal energy complementation.
Article
Thermodynamics
Congyu Wang, Jiwei Song
Summary: The operational flexibility of coal-fired combined heat and power plants is crucial for accommodating high levels of renewable energy in the power grid. This study compares two renovations, high back-pressure (HBP) renovation and low-pressure turbine zero power output (LZPO) renovation, in terms of flexibility, energy, and exergy performance. The results show that LZPO renovation has more potential to improve the accommodation of renewable energy and energy efficiency, although it has higher exergy loss compared to HBP renovation. The new renovated plant also enhances the peak-shaving capacity and heating capacity, increases energy utilization efficiency, and reduces coal consumption for power generation.
Article
Energy & Fuels
Daniel Aviles, Farhad Sabri, Kamel Hooman
Summary: This paper introduces a hybrid 5 MW power generation system combining concentrated solar thermal and solar photovoltaic technology, which increases efficiency by using hot water from a low-temperature geothermal source. The study examines the feasibility of including a thermal desalination technology that uses waste heat to produce clean water. Results show that incorporating the desalination system does not significantly increase costs, with the optimal electricity production ratio achieved when the photovoltaic system contributes 27.5% to total electricity generation. The minimum water production cost is around 40 cent/m(3).
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Thermodynamics
Hai Zhao, Puzhen Gao, Xiaochang Li, Ruifeng Tian, Hongyang Wei, Sichao Tan
Summary: This study numerically investigates the interaction between flow-induced vibration and forced convection heat transfer in a tube bundle. The results show that the impact of flow-induced vibration on heat transfer varies in different flow velocity regions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rohit Chintala, Jon Winkler, Sugirdhalakshmi Ramaraj, Xin Jin
Summary: The current state of fault detection and diagnosis for residential air-conditioning systems is expensive and not suitable for widespread implementation. This paper proposes a cost-effective solution by introducing an automated fault detection algorithm as a screening step before more expensive tests can be conducted. The algorithm uses home thermostats and local weather information to identify thermodynamic parameters and detect high-impact air-conditioning faults.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
A. Azimi, N. Basiri, M. Eslami
Summary: This paper presents a novel optimization algorithm for improving the water-film cooling system of photovoltaic panels, resulting in a significant increase in net energy generation.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Duc-Thuan Phung, Chin-Hsiang Cheng
Summary: In this study, a novel CFDMD model is used to analyze and investigate the behavior of thermal-lag engines (TLE). The study shows that the CFDMD model effectively captures the thermodynamic behavior of the working gas and the dynamic behavior of the engine mechanism. Additionally, the study explores the temporal evolution of engine speed and the influence of various parameters on shaft power and brake thermal efficiency. The research also reveals the existence of a thermal-lag phenomenon in TLE.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Haiying Yang, Yinjie Shen, Lin Li, Yichen Pan, Ping Yang
Summary: The purpose of this article is to find a measure to improve the interfacial thermal transfer of graphene/silicon heterojunction. Through molecular dynamics simulation, it is found that surface modification can significantly reduce the thermal resistance, thereby improving the thermal conductivity of the graphene/silicon interface.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Qiong Wu, Yancheng Wang, Haonan Zhou, Xingye Qiu, Deqing Mei
Summary: This article introduces a visible methanol steam reforming microreactor, which uses an optical crystal as an observation window and measures the reaction temperature in real-time using infrared thermography. The results show that under lower oxygen to carbon ratio conditions, the microreactor has a higher heating rate and a stable gradient in temperature distribution.
APPLIED THERMAL ENGINEERING
(2024)
Review
Thermodynamics
Giulia Manco, Umberto Tesio, Elisa Guelpa, Vittorio Verda
Summary: In the past decade, there has been a growing interest in studying energy systems for the combined management of power vectors. Most of the published works focus on finding the optimal design and operations of Multi Energy Systems (MES). However, for newcomers to this field, understanding how to achieve the desired optimization details while controlling computational expenses can be challenging and time-consuming. This paper presents a novel approach to analyzing the existing literature on MES, with the aim of guiding practical development of MES optimization. Through the discussion of six case studies, the authors provide a mathematical formulation as a reference for building the model and emphasize the impact of different aspects on the problem nature and solver selection. In addition, the paper also discusses the different approaches used in the literature for incorporating thermal networks and storage in the optimization of multi-energy systems.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xuepeng Yuan, Caiman Yan, Yunxian Huang, Yong Tang, Shiwei Zhang, Gong Chen
Summary: In this study, a multi-scale microgroove wick (MSMGW) was developed by laser irradiation, which demonstrated superior capillary performance. The surface morphology and performance of the wick were affected by laser scan pitch, laser power, repetition frequency, and scanning speed. The MSMGW showed optimal capillary performance in alumina material and DI water as the working fluid.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Maofei Mei, Feng Hu, Chong Han
Summary: This paper proposes an effective local search method based on detection of droplet boundaries for understanding the dynamic process of droplet growth during dropwise condensation. The method is validated by comparing with experimental data. The present simulation provides an effective approach to more accurately predict the nucleation site density in future studies.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rahul Kumar Sharma, Ashish Kumar, Dibakar Rakshit
Summary: The study explores the use of phase change materials (PCM) as a retrofit with Heating Ventilation and Air-conditioning systems (HVAC) to reduce energy consumption and improve air quality. By incorporating PCM with specific thickness and fin configurations, significant energy savings can be achieved in comparison to standard HVAC systems utilizing R134a. This research provides policymakers with energy-efficient and sustainable solutions for HVAC systems to combat climate change.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Zhenhua Ren, Xiangjin Meng, Xingang Qi, Hui Jin, Yunan Chen, Bin Chen, Liejin Guo
Summary: This paper investigates the heat transfer mechanism and factors influencing thermal radiation in the process of supercritical water gasification (SCWG) of coal, and proposes a comprehensive numerical model to simulate the process. Experimental validation results show that thermal radiation accounts for a significant proportion of the total heat exchange in the reactor and a large amount of radiant energy exists in the important spectral range of supercritical water. Enhancing radiative heat transfer can effectively increase the temperature of the reaction medium and the gasification rate.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Mauro Abela, Mauro Mameli, Sauro Filippeschi, Brent S. Taft
Summary: Pulsating Heat Pipes (PHP) are passive two-phase heat transfer devices with a simple structure and high heat transfer capabilities. The actual unpredictability of their dynamic behavior during startup and thermal crisis hinders their large-scale application. An experimental apparatus is designed to investigate these phenomena systematically. The results show that increasing the number of evaporator sections and condenser temperature improves the performance of PHP. The condenser temperature also affects the initial liquid phase distribution and startup time.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Ke Gan, Ruilian Li, Yi Zheng, Hui Xu, Ying Gao, Jiajie Qian, Ziming Wei, Bin Kong, Hong Zhang
Summary: A 3-dimensional enhanced heat pipe radiator has been developed to improve heat dissipation and temperature uniformity in cooling high-power electronic components. Experimental results show that the radiator has superior heat transfer performance compared to a conventional aluminum fin radiator under different heating powers and wind speed conditions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xinyi Zhang, Shuzhong Wang, Daihui Jiang, Zhiqiang Wu
Summary: This study focuses on recovering waste heat from blast furnace slag using dry centrifugal pelletizing technology. A comprehensive two-dimensional model was developed to analyze heat transfer dynamics and investigate factors influencing heat exchange efficiency. The findings have important implications for optimizing waste heat recovery and ensuring safe operations.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xincheng Wu, An Zou, Qiang Zhang, Zhaoguang Wang
Summary: The boosting heat generation rate of high-performance processors is challenging traditional cooling techniques. This study proposes a combined design of active jet intermittency and passive surface modification to enhance heat transfer.
APPLIED THERMAL ENGINEERING
(2024)