Abstract & Equipment Lab 7
10
Abstract This experiment was performed to learn about Heat transfer. Three primary modes of heat transfer were studied in this experiment, convection, conduction and radiation. Different sensors were used to measure the temperature fluctuations and differences in this experiment. A thermistor, a resistance temperature detector (RTD) and a thermocouple were used in this experiment to study various heat transfer modes. In order to see the accuracy of the thermistor and RTD, various liquids were heated in order to find the relationship between temperature and viscosity, and an aluminum rod was heat treated in order to observe the difference in a heat treated aluminum specimen and an untouched aluminum specimen. The percent differences between the theoretical and the experimental values were relatively low for both the thermistor and RTD, however the thermistor was more accurate in measuring temperature difference. It is discussed thoroughly in analysis and conclusion sections of this report. Completing this experiment successfully, provided thorough understanding on the three modes of heat transfer and various sensors used to measure temperature differences.
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Abstract & Equipment Lab 7
Transcript of Abstract & Equipment Lab 7
AbstractThis experiment was performed to learn about Heat transfer. Three primary modes of heat transfer were studied in this experiment, convection, conduction and radiation. Different sensors were used to measure the temperature fluctuations and differences in this experiment. A thermistor, a resistance temperature detector (RTD) and a thermocouple were used in this experiment to study various heat transfer modes. In order to see the accuracy of the thermistor and RTD, various liquids were heated in order to find the relationship between temperature and viscosity, and an aluminum rod was heat treated in order to observe the difference in a heat treated aluminum specimen and an untouched aluminum specimen. The percent differences between the theoretical and the experimental values were relatively low for both the thermistor and RTD, however the thermistor was more accurate in measuring temperature difference. It is discussed thoroughly in analysis and conclusion sections of this report. Completing this experiment successfully, provided thorough understanding on the three modes of heat transfer and various sensors used to measure temperature differences.
Equipment
1. Ice and tap water 2. Stainless steel beaker 3. Pyrex or Kimax glass beaker 4. Hot plate with magnetic stirring 5. Alcohol thermometer 6. Thermometer support stand 7. Digital multimeters 8. Digital thermometer (thermocouple) console 9. Thermocouple (Omega Type J) 10. Platinum RTD (Omega PR-11-2-100-1/4-12-E); = 0.00385 (oC 11. Thermistor (Omega 44007) 12. Various wires, cables, and connectors
Figure 1 Digital thermometer (thermocouple) console , Hot Plate
Figure 2 Ice and tap water , Pyrex or Kimax glass beaker, Thermometer support stand, Alcohol thermometer, Digital multimeters , Platinum RTD (Omega PR-11-2-100-1/4-12-E), Thermistor (Omega 44007), Various wires, cables, and connectors
Figure 3 Various Liquids
Figure 4 Machine used to Heat the aluminum specimen
Figure 5 Wilson Hardness measurement toolFigure 6 Wilson theoretical Hardness Data chartFigure 7 Aluminum Specimen, gloves and tongs
Figure 8 Steel bucket
