Heat produced in ICEs is from two sources, thus friction and internal combustion of liquid fossil fuel exclusively in combustion chamber. Cooling system of ICE consists of components assembled to maintain and reduce total heat to manufacturers' recommended value or range. This cooling system makes use of water in combination with additives as working material that flows through galleries carrying heat away.This cooling system recirculates cooling water through engine block. Only about one third of this total heat energy is used by automobile motion, whiles the rest flows through tailpipe as exhaust waste. Radiator, coolant, radiator fan, hoses, pump, heater core, temperature knob, temperature control valve, thermostat, coolant tank, temperature gauge and temperature sensors are components of ICE cooling system. Objectively, this research will use method of modeling and simulation as well as factors or variable parameters to improve operating conditions of cooling systems. Thus, there will also be improvement in reduction of heat generation as well as rate of liquid fuel consumption reduction.Therefore, these modeling as well as simulation results will produce graphical trends for conclusions and recommendations.
ICE efficiency has been the main focus of research internationally so as to reduce associated problems of liquid fossil fuel consumption and gaseous emissions. Heat generation within ICE is due to friction and burning of fuel internally which results to mechanical losses as well as excessive fuel consumption. The engine block is composed of pistons surrounded by piston rings which move within hollow cylinders collectively known as pistoncylinder compact. This piston motion results to friction between metals. Lubricants are oils used to reduce friction. Objectively, this research will use modeling and simulation tools to analyze the models with incorporation of the factors to observe trends in friction reduction or effective lubrication leading to reduction in liquid fuel consumption. Frictional forces, gas pressures and automobile motion are considered in this literature as factors that influence internal combustion. The nature of motion between piston and inner cylinder liner will result to hydrodynamic, mixed and boundary lubrication. The methodology adopted by this research is modeling and simulation of previous as well as new models. The new models consist of old models with incorporated factors. Matlab programs and simulation of models will revise these models which will generate graphical results for trends to be established.
Increasing manufacturing of more complex internal combustion engines has led to application of sophisificated computer programs in automobile industry for production and servicing. Some of these applications are modeling and simulation. These applications are also applied to heat transfer with reference to the objective of this article. A maximum of thirty three percent (33%) of total heat generated is transferred to coolant to be blown away. During operations of internal combustion engines, factors such as age, fuel type, pressure, environmental temperature, road nature, among others influenced rate of heat transfer within ICEs.Internal combustion engines are design in such a way that waste combustible gases are channeled through exhaust system. Components of the exhaust system are designed in such a way to withstand failures, stresses, vibrations and impact. In these engines, convection, radiation and conduction are modes of heat transfer through metal components and fluid. Sources of heat generation in these engines are friction within piston -cylinder liner compact and internal fuel combustion. Thus, internal combustion is the process of burning fuel with oxidizer exclusively in combustion chamber to produce heat energy. The methodology adopted involves modeling and simulation of heat equations. Thus, objectively these equations are analyzed to predict how these parameters will decrease heat generations. Graphical results obtained from applying this methodology indicate temperature reduction.
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