ArticleScientific reports2026
Vibration-based condition monitoring, performance and emission evaluation of a diesel engine fueled with Karanja biodiesel.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study aims to experimentally investigate the performance, combustion, emissions, and vibration characteristics of a single-cylinder, four-stroke, water-cooled variable compression ratio (VCR) diesel engine fueled with diesel and Karanja biodiesel blends (B20 and B30). Experiments were conducted under varying engine load, compression ratio (CR), and hot exhaust gas recirculation (EGR-HOT) conditions. Engine vibration was evaluated using root mean square acceleration (RMS Accel), and a novel integrated approach was adopted to correlate vibration behavior with performance and emission characteristics. The results show that vibration increases with engine load but decreases with higher compression ratios, while under EGR conditions it initially decreases and then rises at higher rates. The results show that vibration increases with engine load but decreases with higher compression ratios, while under EGR-HOT conditions it initially decreases and then rises at higher rates. Compared to diesel, RMS acceleration decreased by 4.3 and 8.49% under load variation, 3.01 and 7.18% under CR variation, and 2.66 and 6.75% under EGR-HOT conditions for B20 and B30, respectively. Emission analysis revealed reductions of 13.3% in hydrocarbon (HC), 6.58% in carbon monoxide (CO), and 17.98% in smoke opacity for B30, although nitric oxide (Nox) increased by 15.8% as compared to diesel. Combustion analysis indicated a 3.43% increase in maximum cylinder pressure (CPMax) and a 14.94% decrease in net heat release (NHR). In terms of performance, brake thermal efficiency (BTHE) decreased by 10.74%, while brake-specific fuel consumption (BSFC) increased by 18.52%. Overall, the study demonstrates that biodiesel blends improve emission and vibration characteristics but slightly compromise performance, while the integrated analysis provides deeper insight into combustion behavior and engine condition.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.