International Journal For Multidisciplinary Research

E-ISSN: 2582-2160   •   Impact Factor: 9.24

A Widely Indexed Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

Call for Paper Volume 8, Issue 4 (July-August 2026) Submit your research before last 3 days of August to publish your research paper in the issue of July-August.
Submit Research Paper Join as a Reviewer

Plagiarism is checked by the leading plagiarism checker TurnItIn

Call for Paper

Volume 8 Issue 4
July-August 2026

Submit your research paper

Indexing Partners
Academia Advanced Sciences Index Bielefeld Academic Search Engine CiteSeer DRJI Google Scholar Independent Search Engine & Directory Network ISI (International Scientific Indexing) Issuu Mendeley Research Networks
RefSeek ResearcherId - Thomson Reuters ResearchGate Scirus Scribd Semantic Scholar UTeM - Universiti Teknikal Malaysia Melaka Wiki for Call for Papers WorldCat Zenodo

Study and Effects of Making Grooves On Piston Head and Performance Test On Single Cylinder CI Engine

Author(s) R. Swapna Kumari, N. CM. Naik
Country India
Abstract The combustion and performance of Compression Ignition (CI) engines are highly dependent on the quality of air–fuel mixing inside the cylinder. Enhancing in-cylinder air motion through swirl and turbulence can significantly improve combustion efficiency and fuel utilization. This study examines the influence of hemispherical grooves incorporated on the piston crown of a single-cylinder diesel engine. Three modified piston designs featuring 3, 6, and 9 hemispherical grooves were developed and evaluated against a conventional piston configuration. The primary objective of the groove modifications was to intensify air swirl during the compression process, thereby promoting more uniform fuel distribution and efficient combustion. Experimental investigations were carried out under different engine operating conditions to assess performance and combustion characteristics. The results indicated that the grooved piston designs improved combustion quality and increased brake thermal efficiency due to enhanced air–fuel interaction. Greater improvements were observed with an increase in the number of grooves, as stronger swirl motion contributed to better mixing and more complete fuel combustion. A minor decrease in mechanical efficiency was noted, which can be attributed to additional flow losses within the combustion chamber. Overall, the findings demonstrate that hemispherical groove modifications on the piston crown can effectively enhance in-cylinder turbulence, leading to improved combustion behaviour and engine performance in diesel engines.
Keywords Compression Ignition Engine, Diesel Engine, Hemispherical Grooves, Piston Crown Modification, Air Swirl, In-Cylinder Turbulence, Combustion Characteristics, Brake Thermal Efficiency, Air–Fuel Mixing, Engine Performance.
Field Engineering
Published In Volume 8, Issue 4, July-August 2026
Published On 2026-07-04
View / Download PDF File

Share this



E-ISSN 2582-2160
CrossRef

CrossRef DOI prefix of IJFMR is 10.36948/ijfmr

Downloads
Research Paper Format Copyright Permission Form and Undertaking Form Cover Page Vol 8 Isu 3Cover Page Vol 8 Isu 2Cover Page Vol 8 Isu 2

All research papers published on this website are licensed under Creative Commons Attribution-ShareAlike 4.0 International License, and all rights belong to their respective authors/researchers.

CC-BY-SA Open Access

About IJFMR
Fees & Payment
Current Issue
Publication Archive 		Submit Research Paper
Track Submission Status
Publication Guidelines
Publication Ethics
Peer Review & Plagiarism 		Join as a Reviewer
Editors & Reviewers
Reviewer Referral Program
Get Reviewer Membership Certi. 		Website/Journal Policies
Usage Policy
Content Policies
Privacy Policy
Contact Us +91-9687-828-838 editor@ijfmr.com
Powered by Sky Research Publication and Journals