Experimental Test of Tire Cooling Equipment Using Air Devotion Method To Reduce Tire Weight Rate In Engkel Trucks

摘要

Components in the field of transportation that greatly affect the amount of transportation costs are fuel, tires and maintenance costs. On average, a tire used by commercial vehicles such as a truck, must replace all of six tires every 3 months, with a cost of approximately 1.5 to 2 million rupiah on every tire. As an academic, the author tries to study this problem by making tools to reduce tire wear rates so that later it can have an impact on reducing transportation costs. The method used is an experimental test directly on objects with treatment according to the use in the field. The temperature that causes the weakening of the tire is kept below 50 degrees celcius with a cooling device with the method of expanding air to release tire heat due to pressure and friction. The tire cooling device that has been made is attached to the left tire of an engkle truck which then operates as usual carrying sand material from the Sebudi Karangasem area to the sand dump in the Jimbaran area. Every 2 day a tire wear measurement is performed both on the left tire that gets cooling and on the right tire that does not get cooling. Furthermore, the wear rate data on the left and right tires are compared to obtain the difference in tire wear rate that gets cooling and which does not. From the data obtained, the results show that the cooling rate of tires that get cooling treatment tends to be 5,3 percent slower than the rate of tire wear that does not get the rate of cooling. From this figure it can be concluded that the use of refrigeration devices is less effective in reducing the wear rate so that other methods are needed to reduce the rate of wear.