Effect Of Excessive Electricity To The Thermal Conductivity Of An Automotive Electrical Supply Systems

Hamizan Afandi, Rosadi (2015) Effect Of Excessive Electricity To The Thermal Conductivity Of An Automotive Electrical Supply Systems. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 pages) Effect Of Excessive Electricity To The Thermal Conductivity Of An Automotive Electrical Supply Systems 24 Pages.pdf - Submitted Version Download (430kB)

Abstract

This purpose of this study is to determine the effect of the output current and voltage from the automobile vehicle alternator to the temperature of the power cable that transmit the output current and voltage to the accumulator or the battery and to the other electrical components that need power to be functional. The alternator is an electrical generator that converts mechanical rotational energy into an alternating electrical current. The alternator uses the rotating magnetic field with a stationary armature. The alternator that used in automotive vehicles produces a direct current as the output power due to a current regulator is equipped inside the alternator to convert the alternating current output into direct current that can be stored inside the accumulator or battery for power supply. In order to create a variation of engine speed and performance, a fuel consumption test scheme will be adapted as a benchmark. The test is going to run by using the dynamometer through dyno-testing machine in the laboratory. The parameter from each condition will be set and measured before the dyno-test is run. The dyno-testing session will ensure the performance of an automobile will not be influenced by any circumstances, such as road surface and wind blowing from surrounding. Dynamometer is a device that measures the output power and torque of an automobile engine without need the vehicle to travel along the roadside or the highway. The vehicle will be placed on the ‘rolling road’ and the wheels will rotate on the roller. The parameters according to the driving condition will be made up by using a heater to increase the ambient temperature or a cooling fan to reduce it otherwise. The parameters are based on international standards of fuel consumption testing scheme that has been used worldwide to road cars and other automobiles. However, the test scheme will be selected according to the suitable climate in Malaysia to ensure the output current and voltage will be affected by the cable temperature and to ease the parameter set-up in the laboratory. From the testing session, the results indicates the increase of the temperature in the cable when the current is increase. On the other hand, the resistance of the cable results by the cable temperature also affected the current flow inside the cable. The cable condition is also changes when it is used for a long time throughout the testing session. During testing session, several parameters need to be change and modified to suit the instruments limitation and by the advice by the technicians.

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