Development of a Diesel Engine Thermal Overload Monitoring System with Applications and Test Results

In this research, the development of a diesel engine thermal overload monitoring system is presented with applications and test results. The designed diesel engine thermal overload monitoring system consists of two set of sensors, i.e., a lambda sensor to measure the oxygen concentration and a fast response thermocouple to measure the temperature of the gas leaving the cylinder. A medium speed Ruston diesel engine is instrumented to measure the required engine process parameters, measurements are taken at constant load and variable fuel delivery i.e., normal and excessive injection. It is indicated that with excessive injection, the test engine is of high risk to be operated at thermal overload condition. Further tests were carried out on a Sulzer 7RTA84T engine to explore the influence of engine operating at thermal overload condition on exhaust gas temperature and oxygen concentration in the blow down gas. It is established that a lower oxygen concentration in the blow down gas corresponds to a higher exhaust gas temperature. The piston crown wear rate will then be much higher due to the high rate of heat transfer from a voluminous flame.

[1]  M. P. Dorado,et al.  EXHAUST EMISSIONS FROM A DIESEL ENGINE FUELED WITH TRANSESTERIFIED WASTE OLIVE OIL , 2003 .

[2]  Myoungho Sunwoo,et al.  Real-time combustion parameter estimation algorithm for light-duty diesel engines using in-cylinder pressure measurement , 2013 .

[3]  Gerardo Valentino,et al.  Experimental study on performance and emissions of a high speed diesel engine fuelled with n-butanol diesel blends under premixed low temperature combustion , 2012 .

[4]  Filipe S. Silva,et al.  Fatigue on engine pistons - A compendium of case studies , 2006 .

[5]  Anthony Paul Roskilly,et al.  Investigation on the Effect of the Gas Exchange Process on the Diesel Engine Thermal Overload with Experimental Results , 2017 .

[6]  T. Elango,et al.  Investigation of emissions and combustion characteristics of a CI engine fueled with waste cooking oil methyl ester and diesel blends , 2014 .

[7]  Sven B Andersson,et al.  Performance Analysis of a Reciprocating Piston Expander and a Plate Type Exhaust Gas Recirculation Boiler in a Water-Based Rankine Cycle for Heat Recovery from a Heavy Duty Diesel Engine , 2016 .

[8]  Ekrem Buyukkaya,et al.  Effects of biodiesel on a DI diesel engine performance, emission and combustion characteristics , 2010 .

[9]  Anthony Paul Roskilly,et al.  Fundamental Analysis of Thermal Overload in Diesel Engines: Hypothesis and Validation , 2017 .

[10]  M. P. Dorado,et al.  Performance tests of a diesel engine fueled with pentanol/diesel fuel blends , 2013 .

[11]  Jun Qin,et al.  Tests and Numerical Simulations on the Thermal Load of the Cylinder Head in Heavy-Duty Vehicle Diesel Engines , 2007 .

[12]  Zhi Wang,et al.  Combustion and emissions of compression ignition in a direct injection diesel engine fueled with pentanol , 2015 .

[13]  Giovanni Fiengo,et al.  Introduction to Internal Combustion Engines , 2013 .

[14]  Wen Tong Chong,et al.  Experimental study on performance and exhaust emissions of a diesel engine fuelled with Ceiba pentandra biodiesel blends , 2013 .

[15]  H. Aydin,et al.  Performance and emission analysis of cottonseed oil methyl ester in a diesel engine. , 2010 .

[16]  Jehad A. A. Yamin,et al.  Engine performance using emulsified diesel fuel , 2010 .

[17]  Robert W. Dibble,et al.  Cyclic variations and prior-cycle effects of ion current sensing in an HCCI engine: A time-series analysis , 2016 .

[18]  Anthony Paul Roskilly,et al.  Research on combustion process of a free piston diesel linear generator , 2016 .

[19]  Guohong Tian,et al.  Effect of closed-loop controlled resonance based mechanism to start free piston engine generator: Simulation and test results , 2016 .

[20]  Yuxi Miao,et al.  Research on the Combustion Characteristics of a Free-Piston Gasoline Engine Linear Generator during the Stable Generating Process , 2016 .

[21]  Medhat A. Nemitallah,et al.  Experimental investigations of ignition delay period and performance of a diesel engine operated with Jatropha oil biodiesel , 2013 .