Experiment Of The Marcet Boiler And Boyle's Law

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Abstract
This lab report focuses on the two experiments on pressure systems conducted, the Marcet boiler and Boyle’s law. The aim of this lab is to investigate in pressure-temperature relationship, Boyle’s law, as well as steam quality. The results of this experiment support both relationship, as well as successfully providing a value for steam quality. For the Marcet boiler experiment, it was found that the higher the system pressure, the higher the saturated temperature. For the Boyle’s law experiment, it was found that pressure is directly proportional to volume, despite using non-ideal gas for the experiment.

1 Introduction and Theory
The aim of this lab demonstration is to get familiar with operating pressure systems in order to investigate
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The heater was then turned on to a mid-range setting. The mid-range setting was maintained until the pressure increased and reached the 0kN/m2 mark. Once the pressure reached the 0kN/m2 mark, the heater was turned to full power. The starting temperature and pressure were recorded at this point. The temperature was recorded for every suitable interval to give a detailed set of experimental data, in this case 50kN/m2. Once the pressure reached 650 kN/m2, the heater was turned down to 150V and the pressure and temperature were allowed to be stabilized. Once the system was stabilized for 5-10 minutes, the temperature T1 and the gauge pressure were recorded. The temperature selector was then switched to T2. A temperature close to room temperature should be shown. The throttle valve was then opened quickly. The temperature was monitored and the maximum value was recorded as …show more content…
The oil was then transferred to the measuring chamber (17) by closing the oil control valve (14) and opening the compressor discharge valve (10). The compressor was then turned on until the pressure dropped to approximately -50kN/m2. The knurled brass cap on the rear of the coupling (6) on the fluid chamber was removed to vent the chamber to atmosphere. The oil was then transferred from the fluid chamber to the measuring chamber until it reached 150mm by carefully opening the oil control valve (14). After that, the knurled brass cap on the rear of the coupling was put back on. The blue hose from coupling (5) was disconnected afterwards. The pressure should be seen to return to 0kN/m2 on the pressure gauge. After that, the blue hose from the measuring chamber coupling (21) was disconnected. The cranked end was connected to the rear of the coupling on the fluid chamber. The other end was connected to the suction coupling on the compressor. After that, the compressor was turned on for 1 minute then off. The fluid chamber should be near vacuum. At this point the starting condition for the experiment was established. The starting pressure P, height of oil h in the measuring chamber and the air temperature T in the measuring chamber were recorded. The measurement was repeated for every 30mm drop in oil level, until a height of 30mm was reached. This was done by carefully

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