The steam generator
The steam generator is attached to the end of the copper tube using tubing. Such attachment is at the farthest end of the dial gauge. The end at which the vapor enters the tube is raised using a block of food. The vapor that condenses is tapped by a container placed under the tube. There should be the alignment of the zero points on the scale and the indicator needle. This is achieved by turning the dial gauge’s outer casing. The steam generator is turned on to allow the continuous flow of the steam while noting the behavior of the ohmmeter and the dial gauge. The resistance (Rhot) is recorded in the table above when the thermistor resistance achieves its stability. The expansion of the tube length (DL) is also recorded in the table. The experiment is repeated for the aluminum and steel tubes. Also, Rhot and Rrm are converted into temperature measurements Tho and Trm using the Conversion Table, and the results are recorded in the table. The DT = Thot – Trm is calculated and recorded in the table. Besides, using the equation DL = aL DT, the α of the three metals are calculated. Finally, the accepted values for metals are compared with the experimental values. The percentage difference in obtained in each case and the experimental error consistency is determined.