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DETERMINATION OF THERMAL CONDUCTIVITY OF OIL

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We have made an experimental set-up to measure thermal conductivity of oil. Experimental setup is designed in such a way that the accuracy it obtain is kept at the same level, while the cost of the experimentation is reduced to 1/10th of other equivalent model available in market. Modifications done are in positioning of the thermocouple, mass flow rate of the water through the water jacket and its arrangement, the design and placement of heater, the positioning oil pocket for oil, use of less costly and widely available material, etc.

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DETERMINATION OF THERMAL CONDUCTIVITY OF OIL

  1. 1. 1 EXPERIMENTAL DETERMINATION OF THERMAL CONDUCTIVITY OF OIL PRESENTED BY NAME EXAM NO SAMUEL ALEXANDER 122 MISTRY SANDIP S. 177 KULKARNI KRUNAL L. 176 BOMRAH NAVJOT SINGH 196 PROJECT ON
  2. 2. 2 OBJECTIVE To design, fabricate and calibrate a experimental set up for the determination of the thermal conductivity of oil.
  3. 3. 3 OVERVIEW  Development Phase  Assembly of unit.  Heater unit  Inner and outer pipe  Thermocouple  Water jacket Unit  Experimental Phase  Determination of oil gap  Experimentation with air  Actual experimentation  Analytical Phase  Determination of incidental heat transfer  Determination of thermal conductivity of oil  Uncertainty analysis  Results & Discussion
  4. 4. 4 DEVELOPMENT PHASE
  5. 5. EXPERIMENT ASSEMBLY 5 THERMOCOUPLEWATER JACKET WATER OUTLET STAND WATER INLET HEATER INNER PIPE OUTER PIPE
  6. 6. SCHEMATIC OF THE SET UP 6
  7. 7. 7 HEATER UNIT
  8. 8. INNER AND OUTER PIPE 8 OUTER PIPE INNER PIPE
  9. 9. THERMOCOUPLE 9
  10. 10. WATER JACKET
  11. 11. 11 EXPERIMENTAL PHASE
  12. 12. DETERMINATION OF OIL GAP 12 Filling of oil Drain of oil for determination of oil gap
  13. 13. 13  Supply water at constant flow rate.  Starting the heater.  Adjust voltage.  Allow the setup to reach steady state.  Measure the temperature.  Measure resistance. EXPERIMENTAL PROCEDURE
  14. 14. EXPERIMENTION WITH AIR LAMINA 14 JUNCTION BOX JUNCTION BOARD VARIAC MULTIMETER REFERENCE JUNCTION
  15. 15. FILLING OF OIL 15
  16. 16. EXPERIMENTATION WITH OIL 16
  17. 17. MEASURING TEMPERATURE 17
  18. 18. 18 ANALYTICAL PHASE
  19. 19. OBSERVATION TAKEN 19 INPUT QUANTITIES V,R OBSERVATIONS CALCULATION Q,ΔT,Qloss ,Qoil INNER RING TEMPERATURE (ti) OUTER RING TEMPERATURE (to) koil
  20. 20. 20 OBTAIN INCIDENTAL HEAT TRANSFER  Heat input (Q) =  Determine kair at  Heat conducted through the air lamina Qair =  Incidental heat transfer Qloss = Q - Qair
  21. 21. 21 OBTAIN THERMAL CONDUCTIVITY OF OIL  Heat input (Q) =  Qloss from the calibration curve at given  Heat conducted through oil Qoil = Q - Qloss  Thermal conductivity of oil koil =
  22. 22. UNCERTAINTY ANALYSIS  Objective is to determine the influence of error on key measurement parameter. 22 T 1% V - R - OBSERVATION Koil 1.4%
  23. 23. RESULTS AND DISCUSSION 23 INCIDENTAL HEAT TRANFER CURVE
  24. 24. RESULTS AND DISCUSSION 24 ACTUAL THERMAL CONDUCTIVITY OF OIL CURVE koilv/s dt
  25. 25. 25 PHOTO GALLERY
  26. 26. PHOTO GALLERY 26 SET UP USED FOR DEEP DRILLING DRILLED HOLES
  27. 27. PHOTO GALLERY 27 Assembly for leakage test Assembly for oil gap test
  28. 28. PHOTO GALLERY 28 CHECKING LEAKAGE THROUGH OIL RING
  29. 29. PHOTO GALLERY 29 Machining of water jacket and flanges
  30. 30. 30

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