Results 61 to 70 of about 4,697 (226)

Advanced HCCI Engines: Challenges and Potential Applications [PDF]

open access: yesE3S Web of Conferences
Homogeneous Charge Compression Ignition (HCCI) engines are considered an emerging internal combustion technology with significant potential for enhancing fuel efficiency and lowering emissions compared to traditional Spark Ignition (SI) and Compression ...
Xie Mingyang
doaj   +1 more source

Study on the Effect of Coupled Internal and External EGR on Homogeneous Charge Compression Ignition under High Pressure Rise Rate

open access: yesEnergies, 2023
This paper investigated the effects of exhaust gas recirculation (EGR) on homogeneous charge compression ignition (HCCI) combustion in internal combustion engines. The exhaust valve closing (EVC) timings were scanned to obtain a set of baseline operating
Huayu Tian   +5 more
doaj   +1 more source

Differences in the travel burden for care between rural and urban patients with opioid use disorder by insurance type

open access: yesThe Journal of Rural Health, Volume 41, Issue 4, Autumn 2025.
Abstract Purpose To compare the time and distance travel burden to access care for rural and urban Medicaid and commercially insured patients with opioid use disorder (OUD), and to understand where they travel for care. Methods We used Medicaid and the Health Care Cost Institute commercial insurance administrative claims data from 2019 to examine the ...
C. Holly A. Andrilla   +3 more
wiley   +1 more source

Engines with HCCI mode

open access: yes, 2021
Táto bakalárska práca sa zaoberá spôsobmi prevedenia motorov pracujúcich v HCCI režime. Pre lepšie zaradenie a pochopenie problematiky sú najprv v úvode popísané konvenčné metódy tvorby zmesi a spaľovania u zážihových a vznetových motorov. Nachádza sa tu
Janečková, Radka
core   +1 more source

Mode switch assist combustion in a gasoline HCCI engine using high pressure fuel injection

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Lean homogeneous charged compression ignition (HCCI) combustion achieves clean and high thermal efficiency, however the operating load range is limited by steep combustion and NOx emission near the high load.
Tatsuya FUJIKAWA   +6 more
doaj   +1 more source

Investigation on Influence of Acetylene Enrichment in Diesel Engines Operating With Microalgae‐Waste Plastic Oil‐Heptane Fuel Mixture

open access: yesEnergy Science &Engineering, Volume 13, Issue 6, Page 3107-3122, June 2025.
The graphical abstract depicts biodiesel production from algae and plastic waste via oil extraction, transesterification, and pyrolysis. These fuels were tested for diesel engine performance, improve combustion, and reduce emissions. ABSTRACT This study investigates the performance and emission characteristics of a diesel engine running on a blend of ...
Veeraraghavan Sakthimurugan   +5 more
wiley   +1 more source

Impact of intake conditions on characteristics of combustion of the HCCI engine using PRF80

open access: yesCogent Engineering
Recently, research on internal combustion engines has focused on mitigating and reducing pollution emissions and fuel consumption. Homogeneous charge compression ignition (HCCI) is a promising solution.
Tung Lam Nguyen, Van Thanh Ngo
doaj   +1 more source

Combustion Modeling for Modern Direct Injection Diesel Engines [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2012
In order to comply with stringent pollutant emissions regulations, a detailed analysis of the engine combustion and emission is required. In this field, computational tools like CFD and engine cycle simulation play a fundamental role. Therefore, the goal
Samad Jafarmadar, Alborz Zehni
doaj  

Effective reduction of in-cylinder peak pressures in Homogeneous Charge Compression Ignition Engine – A computational study

open access: yesAlexandria Engineering Journal, 2015
HCCI mode of combustion is known for simultaneous reduction of NOx and PM emissions besides yielding low specific fuel consumption. The nature of volumetric combustion of HCCI engine leads to the development of high peak pressures inside the combustion ...
T. Karthikeya Sharma   +2 more
doaj   +1 more source

Reasonable Intake and Exhaust Processes Scheduling of Two‐Stroke Free Piston Linear Generator for Intelligent New Energy Vehicles

open access: yesEnergy Science &Engineering, Volume 13, Issue 5, Page 2428-2439, May 2025.
Reasonable intake and exhaust processes scheduling. ABSTRACT Considered a promising power plant offering 25% higher efficiency than conventional reciprocating engines, the free piston linear generator (FPLG) has garnered significant attention due to its breakthrough design that eliminates the crank‐connecting rod, thereby achieving enhanced efficiency.
Dequan Zeng   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy