1

EXPERIMENTAL DETERMINATION OF THERMAL CONDUCTIVITY OF

OIL

PRESENTED BY

NAME EXAM NO

SAMUEL ALEXANDER 122MISTRY SANDIP S. 177KULKARNI KRUNAL L. 176BOMRAH NAVJOT SINGH 196

PROJECT ON

2

OBJECTIVE

To design, fabricate and calibrate a experimental set up for the determination of the thermal conductivity of oil.

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

DEVELOPMENT PHASE

EXPERIMENT ASSEMBLY

5

THERMOCOUPLEWATER JACKET

WATER OUTLETSTAND

WATER INLET

HEATER

INNER PIPE

OUTER PIPE

SCHEMATIC OF THE SET UP

6

7

HEATER UNIT

INNER AND OUTER PIPE

8

OUTERPIPE

INNERPIPE

THERMOCOUPLE

9

WATER JACKET

11

EXPERIMENTAL PHASE

DETERMINATION OF OIL GAP

12

Filling of oil Drain of oil for

determination of oil gap

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

EXPERIMENTION WITH AIR LAMINA

14

JUNCTION BOX

JUNCTION BOARD

VARIAC

MULTIMETER

REFERENCE JUNCTION

FILLING OF OIL

15

EXPERIMENTATION WITH OIL

16

MEASURING TEMPERATURE

17

18

ANALYTICAL PHASE

OBSERVATION TAKEN

19

INPUT QUANTITIESV,R

OBSERVATIONS

CALCULATIONQ,ΔT,Qloss ,Qoil

INNER RINGTEMPERATURE

(ti)

OUTER RINGTEMPERATURE

(to)

koil

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

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 =

UNCERTAINTY ANALYSIS Objective is to determine the influence of error

on key measurement parameter.

22

T

1%

V

-

R

-

OBSERVATION Koil

1.4%

RESULTS AND DISCUSSION

23

INCIDENTAL HEAT TRANFER CURVE

RESULTS AND DISCUSSION

24

ACTUAL THERMAL CONDUCTIVITY OF OIL CURVE

koilv/s dt

25

PHOTO GALLERY

PHOTO GALLERY

26

SET UP USED FOR DEEP DRILLING

DRILLED HOLES

PHOTO GALLERY

27Assembly for leakage test Assembly for oil gap test

PHOTO GALLERY

28

CHECKING LEAKAGE THROUGH OIL RING

PHOTO GALLERY

29

Machining of water jacket and flanges

30