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Investigation of model and control system design of three independent system in IC lab for educational purpose

Zainul Axmar, Siti (2019) Investigation of model and control system design of three independent system in IC lab for educational purpose. Honours thesis, Murdoch University.

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Abstract

Initially, the project is started with conducting design, implementation and testing for water pump with a pressure tank system. This system is a simulation prototype for a household application water system which consists of a pump, pressure tank and pressure switch. This project is constructed for the use inside the ICE laboratory. With the need for energy savings, this project is purposely designed for controlled water supply inlet. For instance, the system works by automatically switch on and off the pump depending on the pressure of the pressure tank, which gives a respective water flow in and out from the system. Thus, this system may reduce the use of a pump for the entire day, which may prolong the pump lifetime.

In the ICE laboratory, the pressure tank with pump is installed on a trolley so that it is easier to locate the system. This system consist of three main module which are heated water tank module, pressure tank with pump module and liquid flow control module. The heated water tank module as the water supply to the pressure tank. In this system, the water pump is pump in the water to the pressure tank when the pressure switch reading is lower than 30 psi and the water pump will stop pump the water when the pressure switch reaches 50 psi. Meanwhile, the liquid flow control module is use to control the output flowrate of water from the pressure tank into the storage tank inside the lab.

Next, the second system is the air-liquid heat exchanger. This system is typically found in the car’s front hood, which use for car cooling system. In other words, the air-liquid exchanger system simulates the process flow between the car radiators, fan radiator, water pump and a car engine that involved in the car cooling system. This system is used to run the hot coolant from the engine to the car radiator and push back the cold coolant from the radiator to the engine. This process helps to provide engine running at the ideal temperature and to avoid overheating to the car engine which may lead to engine broke down and also cause failure to the component and parts which located nearby or attach to the engine.

For that, the air-liquid exchanger system is designed and the prototype is implemented inside the ICE laboratory. This system consist of liquid temperature control module 1, liquid flow control module, air-liquid exchanger module and liquid temperature control module 2 which are used for heat up the water to mimic the hot engine condition, to control the flowrate of water, to cool down the water inside the radiator by controlling the speed of fan and to store the water from the radiator respectively.

The last system is an air mixing system, which consists of instruments such as heater, resistance temperature detector (RTD), valve, pressure gauge and differential pressure transmitter. This system mixes air from the hot and cold stream. The hot air comes from the compressed air in the heater to heat the air, and the cold air comes from the air supply which at the room temperature. This panel consists of some failure device which later may need troubleshoot, repair and replace for some of the components. All of the work done has to be recorded and documented well to provide proper identification of the main issue that causes the failure of the system.

Item Type: Thesis (Honours)
Murdoch Affiliation: Engineering and Energy
Supervisor(s): Vu, Linh
URI: http://researchrepository.murdoch.edu.au/id/eprint/52474
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