http://yetl.yabesh.ir/yetl1/handle/yetl/19060 2026-05-06T00:41:50Z 2026-05-06T00:41:50Z Singh, Surender Singh, Saurabh http://yetl.yabesh.ir/yetl1/handle/yetl/4305932 2025-04-21T10:19:09Z 2024-01-01T00:00:00Z

Advancements and Challenges in Integrating Renewable Energy Sources Into Distribution Grid Systems: A Comprehensive Review Singh, Surender; Singh, Saurabh The issues in integrating renewable energy sources (RES) into distribution grid structures are thoroughly examined in this research. It highlights how important this integration is to updating the energy system and attaining environmental goals. The study explores the specific problems confronted by means of on-grid power structures, along with overall performance metrics and compatibility issues. Additionally, it presents a thorough assessment of the attributes of various RES hybrid systems, together with technology from the fields of solar, wind, batteries, and biomass. To be able to spotlight the significance of innovative solutions inside the dispersed technology environment, the integration of RES with combined heat and power system structures is investigated. This study addresses the numerous problems with RES integration into the grid to better comprehend their intricacies. The viability of RES integration is supported by real-world case studies that provide operational examples of dispersed generation systems. The study concludes by discussing the technical, financial, and grid-related problems associated with distributed generating systems' limits and highlighting the contribution of cutting-edge technology and artificial intelligence to their removal. In conclusion, the report highlights the development toward smarter grids and improved distributed generating capacities as the essential component of a robust and sustainable energy future.

2024-01-01T00:00:00Z Rempel da Silva, Amanda França, Gean Carlos Ordonez, Juan Carlos Marques, Crístofer Hood http://yetl.yabesh.ir/yetl1/handle/yetl/4305767 2025-04-21T10:14:13Z 2024-01-01T00:00:00Z

Fuel Consumption Prediction in Dual-Fuel Low-Speed Marine Engines With Low-Pressure Gas Injection Rempel da Silva, Amanda; França, Gean Carlos; Ordonez, Juan Carlos; Marques, Crístofer Hood The International Maritime Organization has expressed its concern about the pollution caused by ships by putting in place regulations to decrease greenhouse gas emissions. As a result, ships must evermore be fitted with efficient and environmentally friendly engines, and one of the most essential selection parameters to consider is the specific fuel consumption. This parameter can be obtained by means of simulation models with various levels of sophistication, which can be either coded in basic programming languages or run in dedicated packages. The aim of the present study is to conceive a facilitated model to calculate the specific fuel consumption of low-speed dual-fuel engines with low-pressure gas injection driving either fixed or controllable pitch propellers. Clear specific fuel consumption trends were revealed when a normalization process was employed and then polynomials were obtained by numerical regression. This model requires very limited input data to predict the specific fuel consumption of an engine at any contractual maximum continuous rating, including part load operation. Results showed very close qualitative behavior and the highest deviations occurred for the brake-specific pilot consumption, peaking at about 5%. At last, the developed approach was concluded to be an easy-to-implement and fast-to-run model with promising usage for optimization studies.

2024-01-01T00:00:00Z Jie, Zhou Hui-Sheng, Peng Dong, Zheng http://yetl.yabesh.ir/yetl1/handle/yetl/4303310 2024-12-24T19:07:01Z 2024-01-01T00:00:00Z

Experimental Investigation on the Combustion Characteristics of Electrolyte Jets Containing Flame Retardant Tris (2-Chloroethyl) Phosphate Jie, Zhou; Hui-Sheng, Peng; Dong, Zheng It is critical to well understand the combustion characteristics of the electrolytes inside lithium-ion batteries for safety concerns, particularly the electrolyte jet flames after thermal runaway. An electrolyte jet fire setup is developed in this study to investigate the combustion characteristics of electrolyte jets with the flame-retardant additive tris (2-chloroethyl) phosphate (TCEP) under high-temperature circumstances. Jet and ignition delay times and flammability are defined to characterize the flame-retardant effects. The fundamental parameters of self-extinguishing time and propagation rate are also measured for a comprehensive comparison. The experimental results show that the propagation of electrolyte flame at ambient temperature can be entirely stopped with 40 wt% of TCEP additives and 50 wt% can make the electrolyte nonflammable. Owing to the high boiling temperature and vaporization enthalpy of TCEP, more heat is required for the decomposition of electrolytes and TCEP mixtures, resulting in lower decomposition reaction rates and heat release rates. Thus, both the jet delay times and the ignition delay times significantly increase with the TCEP additives. Moreover, analyses on the spectrum of electrolyte jet flame reveal that the suppressing effects of TCEP on the combustion of electrolyte jets are operated by scavenging the OH radical and heat release.

2024-01-01T00:00:00Z Burra, Kiran Raj Goud Sahin, Murat Gupta, Ashwani K. http://yetl.yabesh.ir/yetl1/handle/yetl/4303309 2024-12-24T19:07:00Z 2024-01-01T00:00:00Z

Resistive Heating Catalytic Micro-Reactor for Process Intensified Fuel Reforming to Hydrogen Burra, Kiran Raj Goud; Sahin, Murat; Gupta, Ashwani K. Process intensification of fuel reforming using micro-reactors has become crucial for feed flexibility in H2 production for fuel cells. In the literature on micro-reactors, energy supply for these endothermic reactions has faced limitations, relying on external heating, or autothermal operation. This paper explores a novel approach using a thin-film catalytic heater to develop micro-reactors. The study focuses on dry methane reforming in a simplified micro-reactor where thermal energy is supplied through electric resistive heating of a thin carbon sheet with a catalyst applied to its surface. The thin-catalytic heated layer inside the reactor minimizes energy losses and the reactor footprint. Power input was varied from 90 W to 225 W to understand its impact on the reactor temperature, CH4 conversion, H2 and CO yields. Fast thermal response times were achieved using the carbon paper as a thin film for heating. Ni/MgO impregnated onto carbon paper was utilized as the catalytic heating element which resulted in CH4 conversions greater than 60% at temperature above750 K. Influence of operating conditions such as the input molar ratio of CO2/CH4 and gas hourly space velocity (GHSV) were also investigated to understand the scope of the catalyst in this setup. High GHSVs (592,885 and 948,617 ml/(h·gcatalyst)) were tested to understand the throughput achievable using this setup. This approach demonstrates improved scope and feasibility for further intensification compared to conventionally heated micro-reactors. The research paves the way for efficient and compact micro-reactors for fuel reforming processes.

2024-01-01T00:00:00Z