![]() The level of diffuser was made sure to be always adjusted to meet this condition for best results. By using the adjustable inlet pipe, the level of diffuser was raised until it was just below water level. The flow was adjusted until the water level in the tank was just above the overflow. Flow Through Orifice Procedures First, the hydraulic bench was turned on and water was allowed to enter the cylindrical tank. Lastly, the flow control valve was gradually opened for inlet flow and allows the piping and the cylindrical tank to fill with water until all air has been expelled from the system. The main power supply was connected and the pump was switched on. Then, the bench flow control valve was then fully closed. After that, an orifice provided was installed at the discharge opening of the cylindrical tank which is located at the bottom of the tank. The fluids need to flow through the orifice. A flexible hose was also connected to the overflow outlet and it was made sure to be directed into the sump tank. Orifice plate meter is also used and the type recommended is the one with the brass plate having hole of small dia. The water supply form hydraulic bench was connected to the water inlet using a flexible hose. Water was then filled into the sump tank of the hydraulic bench until approximately 90% full. ![]() The unit was levelled using adjustable feet. ![]() The experiment procedures include: General Start-up Procedures First, the flow through orifice unit was ensured to be placed on top of the hydraulic bench and the equipment was ensured to be set up properly. ![]() The apparatus used in the experiment include flow through orifice unit, manometers, pressure transmitter, adjustable feet, control panel, water tank, pump, hydraulic bench, stop watch and water. ![]()
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