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R. G. Papagiannakis

Bio: R. G. Papagiannakis is an academic researcher from National Technical University of Athens. The author has contributed to research in topics: Exhaust gas recirculation & Carbureted compression ignition model engine. The author has an hindex of 1, co-authored 1 publications receiving 39 citations.

Papers
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Journal ArticleDOI
TL;DR: In this paper, an experimental investigation of the characteristics of dual fuel operation when liquid diesel is partially replaced with natural gas under ambient intake temperature in a direct injection (DI) diesel engine is presented.

282 citations

Journal ArticleDOI
TL;DR: In this paper, a two-zone phenomenological model is employed and applied on a high-speed, pilot ignited, natural gas diesel engine located at the authors' laboratory, in order to examine the effect of these two parameters on the performance and emissions.

148 citations

Journal ArticleDOI
TL;DR: In this paper, a numerical investigation on the ignition of n-C7H16/H2 and n-c7H 16/CH4 fuel blends was performed using CHEMKIN 4.1 software.

81 citations

Journal ArticleDOI
01 Feb 2010-Energy
TL;DR: In this paper, the effect of increased air inlet temperature combined with increased pilot fuel quantity on performance and exhaust emissions of a PINGD engine was examined by applying a comprehensive two-zone phenomenological model on a high-speed, pilot ignited, natural gas diesel engine.

78 citations

Patent
23 Sep 2004
TL;DR: In this article, a method of controlling a direct injection internal combustion engine and predicting the behavior of a direct-injection internal combustion engines is presented, where an estimation of initial cylinder pressure, air flow and EGR flow is used to establish a system that provides engine behaviour by integrating an injection module, combustion module and engine control module.
Abstract: This disclosure teaches a method of controlling a direct injection internal combustion engine and predicting the behaviour of a direct injection internal combustion engine. An estimation of initial cylinder pressure, air flow and EGR flow (if applicable) is used to establish a system that provides engine behaviour by integrating an injection module, combustion module and engine control module to provide data indicative of engine behaviour such as brake torque and power, air flow, EGR flow, cylinder pressure, brake specific fuel consumption, start of combustion, heat release rate, turbo-charger speed and other variables. These values can then be used to adjust commanded variables such as start of injection, commanded pulse width, rail pressure to meet operator demand. Also the output data can be used as a tool to determine how a conceptualised engine design will behave. This is particularly useful for gaseous-fuelled internal combustion engines where cylinder pressure influences behaviour of injected gases in light of the fact that rail pressure and cylinder pressure are, generally, of a similar magnitude.

70 citations