Article
Energy & Fuels
Mohit Sharma, Rajneesh Kaushal
Summary: The study investigated the performance and emission characteristics of a VCR engine driven by PG produced from pistachio shells gasification. The maximum diesel substitution rate of 46.66% was observed in dual mode, with lower NO2 emissions by 12.06-37.27% compared to diesel run.
Article
Energy & Fuels
Prabhakar Sharma, Avdhesh Kr. Sharma, Deepanraj Balakrishnan, Arthi Manivannan, Wen Yi Chia, Mukesh Kumar Awasthi, Pau Loke Show
Summary: This study aimed to improve the emission and combustion parameters of a dual-fuel combustion engine by using biodiesel/diesel and producer gas as fuels, which resulted in reduced exhaust emissions and minimized environmental impact. The experimental data and Artificial Neural Network prediction model confirmed the effectiveness of this hybrid fuel system.
Article
Thermodynamics
Prabhakar Sharma, Bhaskor J. Bora
Summary: This study utilizes an oxyhydrogen generator to improve the energy density of the producer gas derived from waste biomass, which is used as a fuel for gas-powered engines along with a small amount of diesel as pilot fuel. The combustion parameters of a diesel engine, including engine load, gaseous fuel flow rate, and injection advance, are investigated and optimized. The optimal operating parameters are determined as 29 degrees crank angle advance, 4.88 bar brake mean effective pressure, and 0.825 litres per minute oxyhydrogen flow rate, resulting in improved combustion and reduced engine emissions except for NOx.
Article
Thermodynamics
G. Arun Prasad, P. C. Murugan, W. Beno Wincy, S. Joseph Sekhar
Summary: Energy generation through gasification technology is receiving significant attention from policy makers and researchers. A mathematical investigation was conducted to analyze the impact of different biomass sources on the performance of a dual-fuel diesel engine. The study found that an increase in calorific value of producer gas led to higher CO and NOx emissions.
Article
Multidisciplinary Sciences
A. Jemila Percy, M. Edwin
Summary: In this study, the performance of a variable compression ratio CI engine fuelled with diesel-producer gas combination derived from rice husk, coconut shell, and rubber shell has been investigated. The experimental results show that the rubber shell powered DF engine showed the maximum diesel savings of 48%, with a higher brake thermal efficiency compared to the other feedstocks. The theoretical model based on finite-time thermodynamics is validated with the experimental findings, and the optimized conditions for maximum brake thermal efficiency and diesel savings are predicted.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Ashok Kumar Thangaiyan, Mohamed Musthafa Mohamed Ibrahim
Summary: This study conducted the design and fabrication of a small-capacity updraft gasifier to produce producer gas from wood and used it as supplementary fuel in a petrol engine. The experimental results showed a slight decrease in engine efficiency but significant improvement in emission levels in dual fuel mode.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Thermodynamics
A. Jemila Percy, M. Edwin
Summary: This study simulated the performance and emission characteristics of a dual fuel engine by varying the operating conditions using the response surface methodology. The rubber shell operated dual fuel engine showed the highest brake thermal efficiency and diesel replacement.
Review
Energy & Fuels
Paramvir Singh, Rohit Kumar, Saurabh Sharma, Sudarshan Kumar
Summary: This paper provides a detailed analysis of the technical feasibility of using biomass-derived combustible gaseous fuels and low-calorific-value biomass as feedstock for combustion engines, including suggested modifications for diesel engines and the impact of engine parameters on combustion processes. The study highlights the significant impact of using producer gas as a fuel on engine operation and performance, as well as the effects on engine characteristics of various management strategies for pilot fuel, combustion chamber geometries, type of carburetors, and producer gas quantity.
Article
Energy & Fuels
Zhonghang Liu, Jianbin Luo, Yajuan Pan, Jian Li, Longjie Li, Xin Wei, Hongxiang Xu, Yuanhao Tie, Chengtao Zhang, Dayong Yang
Summary: This study used a hybrid approach of RSM-NSGA II-TOPSIS to perform multi-objective optimization of a dual-fuel engine with hydrogen addition. By establishing a CFD model and a chemical reaction mechanism, and using regression model and genetic algorithm for optimization, the optimal solution was selected using the TOPSIS decision method.
Article
Energy & Fuels
Xinlei Liu, Hu Wang, Zunqing Zheng, Mingfa Yao
Summary: A comprehensive numerical study on the combustion and emission characteristics of a NG-diesel dual-fuel engine operating at high load conditions was conducted, proposing a pathway to achieve highly efficient and clean combustion. It was found that utilizing at least a 40% EGR rate is necessary to meet NOx Euro VI regulation limits, while other parameters such as injection pressure and nozzle number also play important roles in promoting engine efficiency and reducing emissions.
Article
Thermodynamics
K. A. Sateesh, V. S. Yaliwal, N. R. Banapurmath, Manzoore Elahi M. Soudagar, T. M. Yunus Khan, P. A. Harari, A. S. El-Shafay, M. A. Mujtaba, Ashraf Elfaskhany, M. A. Kalam
Summary: This study prepared nanoparticle-blended biodiesel fuels by adding multi-walled carbon nanotube particles in dairy scum oil methyl ester biodiesel. The stability characteristics of these fuels were studied and their effects on combustion and emissions in an engine running on dual-fuel mode were examined. The results showed that adding MWCNT nanoparticles improved fuel efficiency, reduced smoke opacity, HC and CO emissions, and increased NOx emissions.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Review
Energy & Fuels
Coskun Yildiz, Marcel Richter, Jochen Stroehle, Bernd Epple
Summary: The release behavior of sulfur and chlorine compounds from walnut shell particles was investigated using an entrained flow reactor. The experiments were conducted under different atmospheres and conditions. The results showed that the majority of fuel-bound sulfur volatilizes as sulfur dioxide, carbonyl sulfide, and hydrogen sulfide in nitrogen atmosphere at 1000 degrees C. Hydrogen chloride is released as HCl at a lower percentage. Similar results were observed in carbon dioxide atmosphere. The release of sulfur and chlorine decreases with increasing temperatures in both atmospheres.
Article
Energy & Fuels
W. Beno Wincy, M. Edwin, U. Arunachalam, S. Joseph Sekhar
Summary: The utilization of rice husk can enhance the efficiency of the rice parboiling system, while exergy analysis helps reduce fuel requirements and environmental impact. The study highlights the importance of potential improvement and sustainability index in optimizing the system's performance.
Article
Energy & Fuels
M. R. Atelge, Esenay Arslan, David Krisa, R. R. Al-Samaraae, Serdar Abut, Sebahattin unalan, A. E. Atabani, Nafiz Kahraman, Selahaddin Orhan Akansu, Mustafa Kaya, Selcuk Sarikoc, Hilal Demir Kivrak
Summary: This study investigates the effects of modified diesel fuel and biogas on combustion behavior, performance, and emissions in a dual fuel direct injection diesel engine. The experimental results show that the modified fuel exhibits better combustion behavior, performance, and emissions compared to diesel fuel. The optimum level for combustion, performance, and emissions in dual fuel mode is found to be 60 ppm of multi-walled carbon nanotubes.
Article
Energy & Fuels
Zhaojun Zhu, Yikai Li, Cheng Shi
Summary: Increasing the natural gas energy fraction (NGEF) delays the start of combustion and decreases peak pressure; NGEF significantly affects the distribution of the ignition kernel, with higher NGEF scattering the ignition kernel; Lower soot volume fraction and unburned hydrocarbon emissions can be obtained by increasing NGEF from 0% to 70%, but further increasing NGEF to 85% deteriorates combustion.
Article
Energy & Fuels
Mohit Sharma, Rajneesh Kaushal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2020)
Article
Energy & Fuels
Akash Sharma, Rajneesh Kaushal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2020)
Article
Energy & Fuels
Jasvinder Kumar, Rajneesh Kaushal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2020)
Article
Energy & Fuels
Mohit Sharma, Rajneesh Kaushal
Summary: The study investigated the performance and emission characteristics of a VCR engine driven by PG produced from pistachio shells gasification. The maximum diesel substitution rate of 46.66% was observed in dual mode, with lower NO2 emissions by 12.06-37.27% compared to diesel run.
Review
Energy & Fuels
Rajneesh Kaushal, Rohit, Amit Kumar Dhaka
Summary: The recent COVID-19 pandemic has generated a significant amount of biomedical waste, requiring efficient treatment technology. Plasma gasification technology can effectively treat biomedical waste and utilize its byproducts as valuable inputs, in line with the concept of circular economy.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Physical
Shresht Kakran, Rajneesh Kaushal, Vijay Kumar Bajpai
Summary: This paper presents a performance study of a Compression Ignition engine using a fuel combination of diesel and hydrogen-diesel. The experimental results indicate improvements in Brake Thermal efficiency, reduction in Brake Specific Fuel Consumption and slight decrease in Volumetric efficiency when using hydrogen-diesel fuel.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Multidisciplinary Sciences
Narender Singh, Rajneesh Kaushal
Summary: Currently, the global energy situation is challenging and there are concerns about the potential risks of nanotechnology. To address this, a study proposed a new bio-nano diesel emulsion fuel for energy conservation and pollution reduction. By using biodegradable carbon quantum dots (CQDs) produced from waste sweet lime peel, tests were systematically conducted to optimize engine performance and emissions. The study found an optimal solution with specific input parameters that resulted in improved engine efficiency and reduced emissions.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Rajneesh Kaushal, Rajesh Baitha
Summary: The combination of graphene oxide nanoparticles (GO-NPs) and Ca(OH)(2) pre-treated slurry mixed with wheat straw has been found to enhance biogas and methane production in anaerobic digestion. The optimum composition of GO-NPs and other additives resulted in a significant increase in cumulative methane yield compared to the control group over a 40-day hydraulic retention time.
INTERNATIONAL JOURNAL OF AMBIENT ENERGY
(2021)
Article
Thermodynamics
Akash Sharma, Rajneesh Kaushal
Summary: The study proposed a solar-powered liquid desiccant air conditioning system to tackle the issues of leakage, corrosion, and solution carryover in conventional systems. Experimental results showed that the system effectively dehumidified and cooled the process air, validating the potential of the novel system concept for space air conditioning technology advancement.
Review
Energy & Fuels
Mohit Sharma, Rajneesh Kaushal
INTERNATIONAL JOURNAL OF AMBIENT ENERGY
(2020)
Article
Energy & Fuels
Rajesh Baitha, Rajneesh Kaushal
INTERNATIONAL JOURNAL OF AMBIENT ENERGY
(2020)
Article
Thermodynamics
Ravinder Kumar, Ravindra Jilte, Mohammad H. Ahmadi, Rajneesh Kaushal
INTERNATIONAL JOURNAL OF LOW-CARBON TECHNOLOGIES
(2019)
Article
Green & Sustainable Science & Technology
Rajesh Baitha, Rajneesh Kaushal
INTERNATIONAL JOURNAL OF SUSTAINABLE ENGINEERING
(2019)
Article
Engineering, Multidisciplinary
Sunil K. Sansaniwal, M. Kumar, Rajneesh, V. Kumar
JOURNAL OF ENGINEERING SCIENCE AND TECHNOLOGY
(2017)
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.
