Thermal Analysis of Engine failure conditions in engine Overheating cases

Abstract

Most engines are designed to operate within a "normal" temperature range of about 195 to 220 degrees F. A relatively constant operating temperature is essential for proper emissions control, good fuel economy and performance. But problems can arise that cause the engine to run hotter than normal, resulting in engine overheating. Let's take a look at some of the most common causes. This is the primary cause of engine overheating. Possible leak points include hoses, the radiator, water pump, thermostat housing, heater core, head gasket, freeze plugs, automatic transmission oil cooler, cylinder heads and block. Perform a pressure test. An estimated 50 percent of all engine failures are associated with problems in the cooling system. This paper presents the study conducted to find out the causes of engine overheating temperature because of failure through thermal analysis, cause and effect design is prepared in the computer aided software catia to classify the causes into sub causes and the thermal analysis of the cylinder liner is done using Ansys two different materials gray cast iron and Nikasil. Nikasil is a trademarked electrodeposited lipophilic nickel matrix silicon carbide coating. With help of the ansys software find which material is better chose for engine cylinder linears.