Development of low-cost oil bath heater”

Siva Kumar, Shahrankumar (2022) Development of low-cost oil bath heater”. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The oil bath is initially used for heating of specimen in immersion test. The oil is able the sustain temperatures based on specifications, volume and space. However the existing products in the market seem the vary in features and costing. The most basic model is costing up to RM 4000 which is costly for the testing that is set to carry out. Besides the additional features that is attached along with the bath is not usable for the basic immersion test hence it would be waste to simply purchase it. Then in term of the volume issue, whereby the volume that is offered in the market is either too much or too less. Finally, based on the ASTM standard, the temperature requirement for basic immersion test is fixed to 50℃ but most available products consist of higher temperatures be an unnecessary advantage. Hence by designing and fabricating a desired specification model is required. The designing was made based on desired volume and temperature. Simple glass and wooden box were utilized as the main structure. Some electronic components were also included such as switching power supply, temperature thermostat, heating element and waterproof temperature sensor. These components made it possible to enhance the heating in the device. The tank is able to contain the volume of 2 liters successfully. The tank could possibly withstand more if any modification is made and since the material of tank is glass the reactivity with the content is indifferent. The temperature was also able to increase and sustain outstandingly. The approximate time taken to reach desired temperature was almost 10 hours. The heater was keen to start up in a short span from initial stage which eases and fastens the heating process.

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