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Georgios Karavalakis

Researcher at University of California, Riverside

Publications -  90
Citations -  3287

Georgios Karavalakis is an academic researcher from University of California, Riverside. The author has contributed to research in topics: Diesel fuel & NOx. The author has an hindex of 29, co-authored 77 publications receiving 2641 citations. Previous affiliations of Georgios Karavalakis include Community emergency response team & Bourns College of Engineering.

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Effects of biodiesel on passenger car fuel consumption, regulated and non-regulated pollutant emissions over legislated and real-world driving cycles

Georgios Fontaras, +7 more
- 01 Sep 2009 - 
TL;DR: In this paper, a Euro 2 diesel passenger car with a soybean-oil derived biodiesel (B100) and its 50 vol.% blend with petroleum diesel (B50) was used on a chassis dynamometer.
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Pumpkin (Cucurbita pepo L.) seed oil as an alternative feedstock for the production of biodiesel in Greece

P. Schinas, +7 more
- 01 Jan 2009 - 
TL;DR: In this paper, the authors showed that the oil content of pumpkin seeds was remarkably high (45%), and the fatty acid profile of the oil showed that is composed primarily of linoleic, oleic, palmitic and stearic acids.
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Storage stability and ageing effect of biodiesel blends treated with different antioxidants.

Georgios Karavalakis, +4 more
- 01 Jan 2011 - 
TL;DR: In this article, the impact of various synthetic phenolic antioxidants on the oxidation stability of biodiesel blends with the employment of the modified Rancimat method was investigated, and the experimental results revealed that an improvement in oxidation stability could be achieved with all antioxidants tested.
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Biodiesel emissions profile in modern diesel vehicles. Part 2: Effect of biodiesel origin on carbonyl, PAH, nitro-PAH and oxy-PAH emissions

Georgios Karavalakis, +3 more
- 15 Jan 2011 - 
TL;DR: It can be assumed that the presence of polymerization products and cyclic acids, along with the degree of unsaturation were the main factors that influenced carbonyl and PAH emissions profile.
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Impacts of ethanol fuel level on emissions of regulated and unregulated pollutants from a fleet of gasoline light-duty vehicles

Georgios Karavalakis, +5 more
- 01 Mar 2012 - 
TL;DR: In this paper, the authors investigated the impact of ethanol blends on criteria emissions (THC, NMHC, CO, NOx), greenhouse gas (CO2), and a suite of unregulated pollutants in a fleet of gasoline-powered light-duty vehicles.