Article
Green & Sustainable Science & Technology
Gurcan Cetin, Osman Ozkaraca, Ali Kecebas
Summary: The study developed a new and optimal control strategy to maximize the exergy efficiency of a geothermal power plant system by controlling flow rate, pressure, and NCG percentage. The results showed a 25% increase in exergy efficiency and a 23% increase in power generation, demonstrating the effectiveness of the proposed strategy.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Energy & Fuels
Pawel Ziolkowski, Pawel Madejski, Milad Amiri, Tomasz Ku, Kamil Stasiak, Navaneethan Subramanian, Halina Pawlak-Kruczek, Janusz Badur, Lukasz Niedzwiecki, Dariusz Mikielewicz
Summary: The article discusses the thermodynamic analysis of a negative CO2 emission power plant using zero-dimensional mathematical models, showing the potential for achieving negative emissions through a novel gas cycle using gasified sewage sludge. Results from different thermodynamic codes offer consistent trends even in the absence of experimental data. The study highlights the importance of precise modeling for carbon capture and storage systems and demonstrates the positive environmental impact of the proposed solution.
Article
Green & Sustainable Science & Technology
Murat Ozturk, Ibrahim Dincer
Summary: This paper develops a new integrated system using geothermal energy and conducts a comprehensive performance evaluation. Through parametric investigation and evaluation, the system efficiency and exergy destruction rates among different subsystems are obtained.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Chemistry, Physical
Yunus Emre Yuksel, Murat Ozturk, Ibrahim Dincer
Summary: The paper presents a novel multi-generation plant to generate cleaner energy outputs and additional useful commodities, aiming to meet the energy and fuel needs of societies in a sustainable way while preserving the environment.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Green & Sustainable Science & Technology
Gurcan Cetin, Ali Kecebas
Summary: This article discusses the application of the Simulated Annealing (SA) algorithm for optimizing the performance of a binary geothermal power plant in Turkey and compares it to the Gravitational Search Algorithm (GSA). The study results show that the SA algorithm outperforms the GSA algorithm and can improve the efficiency of the power plant.
Article
Energy & Fuels
Neo Khesa, Jean Mulopo
Summary: In this paper, a high temperature coelectrolysis process was developed and analyzed. The results show that the system is more suitable for producing liquid hydrocarbon fuels with higher carbon to hydrogen ratios compared to methane production via retrofit.
ENERGY SCIENCE & ENGINEERING
(2021)
Article
Thermodynamics
Prateek Sharma, Pratik N. Sheth, Subhadip Sen
Summary: This article focuses on utilizing MSW-based refuse derived fuel (RDF) as an alternative fuel in white cement production. The ash-free producer gas derived from RDF gasification can partially replace conventional fuel, reducing CO2 emissions and addressing waste management issues.
Article
Energy & Fuels
Kezhen Zhang, Ming Liu, Yongliang Zhao, Hui Yan, Junjie Yan
Summary: This study discusses a molten salt thermal storage system that enhances operational flexibility and thermal efficiency of the thermal power system by integrating multiple heat sources, effectively reducing the power load of coal-fired power plants.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Arshid Mahmood Ali, Muhammad Shahbaz, Khurram Shahzad, Muddasser Inayat, Salman Naqvi, Abdulrahim Ahmad Al-Zahrani, Muhammad Imtiaz Rashid, Mohammad Rehan, Aishah Binti Mahpudz
Summary: Date palm waste (DPW) is a valuable waste product in the Middle East that can be utilized to generate sustainable energy. This study developed an integrated system model to predict gas composition and power generation from DPW. The results show that DPW can be converted into syngas, with varying gas composition and power generation depending on operating variables. This research highlights the potential of DPW for renewable fuel and electricity generation, offering an environmentally friendly solution for waste disposal.
Article
Thermodynamics
Fayza Yulia, Rifka Sofianita, Kukuh Prayogo, N. Nasruddin
Summary: This study presents a comprehensive investigation of a CO2 absorption system using MEA solution in a coal fired power plant, aiming to optimize the system by maximizing exergy and minimizing exergoenvironmental impacts. Results indicate that improvements should be made on heat exchangers, regenerators, and absorbers to enhance efficiency and reduce environmental impacts.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Environmental
Muhammad Haris Hamayun, Murid Hussain, Iqrash Shafiq, Ashfaq Ahmed, Young-Kwon Park
Summary: Exergy analysis is an important tool for identifying improvements in industrial processes. In this study, the steam power plant was analyzed using energy and exergy balances, with a focus on the boiler as a major source of exergy destruction. Remedial actions were suggested for improvement.
ENVIRONMENTAL ENGINEERING RESEARCH
(2022)
Article
Thermodynamics
Abdurrahman A. Alsanousie, Osama A. Elsamni, Abdelhamid E. Attia, Mohamed Elhelw
Summary: This study addresses the lack of research on dynamic simulation, operation control optimization, and operation strategies for small-scale old plants. By developing a simulation model and optimizing the controller, accurate prediction and stabilization of small-scale real plants under various fault scenarios were achieved, along with proposed operation strategies.
Article
Energy & Fuels
Liguo Jiao, Jian Li, Beibei Yan, Guanyi Chen, Sarwaich Ahmed
Summary: This study integrates microwave torrefaction and conventional torrefaction with gasification for the treatment of herb residue. The results show that microwave torrefaction significantly improves the gasification performance and achieves self-power in the integrated process, enhancing electricity yield.
Article
Engineering, Multidisciplinary
S. H. Pour Rahmati Khalejan, V Keskin
Summary: This study investigates the power conversion efficiency and exergy of a grid-connected PV power plant by comparing solar exergy models over a 12-month period. The results show variations in PV exergy efficiency among different models and geographical locations.
Article
Thermodynamics
Zhongkai Zhao, Yohanes Andre Situmorang, Ping An, Jingxuan Yang, Xiaogang Hao, Jenny Rizkiana, Abuliti Abudula, Guoqing Guan
Summary: The study introduces a small-scale high-efficient biomass gasification system, optimizing the conversion steps and energy flow in the system to enhance overall performance. Under optimal operating conditions, a significant amount of electricity can be generated from biomass input, and the efficiency is further improved through energy recovery.
ENERGY CONVERSION AND MANAGEMENT
(2021)