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ANALYSIS OF TRAINSIENT HEAT CONDUCTION IN DIFFERENT GEOMETRIES A THESIS SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF TECHNOLOGY IN MECHANICAL ENGINEERING By Pritinika Behera Under the Guidance of Dr. Santosh Kumar Sahu Department of Mechanical Engineering National Institute of Technology Rourkela May 2009
National Institute of Technology Rourkela CERTIFICATE This is to certify that thesis entitled, “ANALYSIS OF TRANSIENT HEAT CONDUCTION IN DIFFERENT GEOMETRIES” submitted by Miss Pritinika Behera in partial fulfillment of the requirements for the award of Master of Technology Degree in Mechanical Engineering with specialization in “Thermal Engineering” at National Institute of Technology, Rourkela (Deemed University) is an authentic work carried out by her under my supervision and guidance. To the best of my knowledge, the matter embodied in this thesis has not been submitted to any other university/ institute for award of any Degree or Diploma. Dr. Santosh Kumar Sahu Date Department of Mechanical Engg. National Institute of Technology Rourkela - 769008
Page 1: ANALYSIS OF TRANSIENT HEAT CONDUCTI
Page 5 and 6: CONTENTS Abstract i List of Figures
Page 7 and 8: ABSTRACT Present work deals with th
Page 9 and 10: Fig4.6 Average dimensionless temper
Page 11 and 12: NOMENCLTURE B Biot Number k Thermal
Page 13 and 14: 1.1 GENERAL BACKGROUND CHAPTER 1 IN
Page 15 and 16: direction. When no single and domin
Page 17 and 18: though the atmosphere has already b
Page 19 and 20: higher. When Biot number is more th
Page 21 and 22: 1.8 OBJECTIVE OF PRESENT WORK 1. An
Page 23 and 24: 2.1 INTRODUCTION CHAPTER 2 LITERATU
Page 25 and 26: A. G. Ostrogorsky [5] has used Lapl
Page 27 and 28: linear polynomial pieces which are
Page 29 and 30: error. In this case the approximate
Page 31 and 32: systems based on the flux formulati
Page 33 and 34: CHAPTER 3 THEORTICAL ANALYSIS OF CO
Page 35 and 36: equation. This can then be converte
Page 37 and 38: Based on the analysis a closed form
Page 39 and 40: a + 2a =−Bθ 1 2 Subtracting the
Page 41 and 42: ∂T 1 ∂ ⎛ m ∂T ⎞ = α r G
Page 43 and 44: Thus, a 2 Bθ =− 2 We can also wr
Page 45 and 46: We consider the heat conduction in
Page 47 and 48: Thus, a 1 = 0 (3.86) Applying secon
Page 49 and 50: θ = − τU e + V U ⎛ 2B ⎞ U =
Page 51 and 52: Differentiating the above equation
Page 53 and 54:
3.7 TRAINSIENT HEAT CONDUCTION IN C
Page 55 and 56:
Thus a + 2a =−Bθ 1 2 a 2 Bθ =
Page 57 and 58:
CHAPTER 4 RESULT AND DISCUSSION
Page 59 and 60:
Dimensionless temperature (θ) 1000
Page 61 and 62:
4.2 HEAT GENERATION FOR BOTH SLAB A
Page 63 and 64:
Dimensionless temperature (θ) 1.1
Page 65 and 66:
Dimensionless temperature 1.0 0.8 0
Page 67 and 68:
Table 4.2 Comparison of modified Bi
Page 69 and 70:
5.1 CONCLUSIONS CHAPTER 5 CONCLUSIO
Page 71 and 72:
CHAPTER 6 REFRENCES
Page 73 and 74:
12. O¨. Ercan Ataer, “An approxi
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