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5_MAE 334Woodward - lab3

5_MAE 334Woodward - lab3 - calorimeter setup to zero each...

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MAE 334 Lab 3 Figure 6. Typical File Configuration Gathering Transient Thermal Data We are interested in studying the thermal response of the calorimeter to mechanical input. The mechanical work is applied by turning the calorimeter crank while supporting the 5 kg mass. We would like to apply the input for two minute periods with different work levels and observe the resulting transient temperature behavior. Since the mechanical force is defined by the 5 kg mass, the rate of doing work can be adjusted by turning the crank at different speeds. Aim for runs at 75, 100 and 125 rpm. Set the counter on the
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Unformatted text preview: calorimeter setup to zero each time you start. You may use the counter result with your cranking time for your speed calculation. During data logging, be sure to manage the files created by the data logger so your data is saved appropriately without unplanned “over-writing” or “appending”. Figure 7 shows a typical data run. Notice that the voltage actually falls as the temperature rises. In the case of Figure 7, the work input began about 10 seconds into the run and the temperature rose about 9 C by the end of the run. Figure 7. Taking Data while Cranking 5 of 9...
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