- By Ramon A. Alguidano, Jr., Reylin D. Manajero, and Rex S. Rubidy
ABSTRACT
This study aimed to design, construct and test a Low Cost Mini Electric Steam Generator for Physics Stockroom with the following component: The block diagram is composed of seven components, the AC power supply, heater, broiler, water pump, water level controller, temperature indicator, Steam Exhaust. The AC power is 220V/60Hz that is used to supply the heater to heat the broiler to produce a steam. The water is automatically fed via a submergible water pump and the level will be controlled by a heater level controller, ensure the correct level of water and avoids shortage of water inside the broiler. The broiler connected with a temperature sensor and indicator to indicate the temperature. The maximum power line voltage is 2207VAC. The total resistance of the heater and the transformer is 51.5288 ohms, with load current of 4.42 amperes and power equivalent to 1000 – watts. After a series of test, the Low Cost Mini Electric Steam Generator is capable of producing steam at the rate of 225.2 gm/min. That amount of steam generated is sufficient for the coefficient of linear expansion apparatus and other experiments related to the study of heat. The maximum temperature generated is 100°C, the boiling point of water. It can be concluded that the low cost mini electric steam generator was satisfactorily made and very adopted to the needs of the Physics Stockroom for experiments in thermodynamics.