Temperature difference across wall is to be determined. Concept Introduction: The fundamental concept of steady state conduction is used to determine the temperature drop. Temperature drop across the wall depends on the ratio of overall thermal resistance and wall resistance as well as inner and outer fluid temperatures.

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Answer 1

Question

Chapter 10, Problem 10.9P

(a)

Interpretation Introduction

Interpretation:

Temperature difference across wall is to be determined.

Concept Introduction:

The fundamental concept of steady state conduction is used to determine the temperature drop. Temperature drop across the wall depends on the ratio of overall thermal resistance and wall resistance as well as inner and outer fluid temperatures.

(b)

Interpretation Introduction

Interpretation:

Polymer deposit thickness is to be determined.

Concept Introduction:

Substance thickness depends on product of thermal resistance offered by the substance and its thermal conductivity. Furthermore, thermal resistance offered by the substance depends not only on the overall temperature difference but also the temperature-drop across wall.

(c)

Interpretation Introduction

Interpretation:

Rise in the magnitude of heat flux is to be determined.

Concept Introduction:

Magnitude of heat flux is actually inversely proportional to the ratio of overall thermal resistances between the previous and modified design. This means that the factors to consider are thermal resistance of previous design as calculated in sub-part (a) and a new overall composite thermal resistance that includes the effect of new layer and shell thickness along with the thermal conductivities of materials in question.

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4.59 Using the unilateral z-transform, solve the following difference equations with the given initial conditions. (a) y[n]-3y[n-1] = x[n], with x[n] = 4u[n], y[− 1] = 1 (b) y[n]-5y[n-1]+6y[n-2]= x[n], with x[n] = u[n], y[-1] = 3, y[-2]= 2 Ans. (a) y[n] = -2+9(3)", n ≥ -1 (b) y[n]=+8(2)" - (3)", n ≥ -2

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Use this equation to solve it.

Answer 2

Question

Chapter 10, Problem 10.9P

(a)

Interpretation Introduction

Interpretation:

Temperature difference across wall is to be determined.

Concept Introduction:

The fundamental concept of steady state conduction is used to determine the temperature drop. Temperature drop across the wall depends on the ratio of overall thermal resistance and wall resistance as well as inner and outer fluid temperatures.

(b)

Interpretation Introduction

Interpretation:

Polymer deposit thickness is to be determined.

Concept Introduction:

Substance thickness depends on product of thermal resistance offered by the substance and its thermal conductivity. Furthermore, thermal resistance offered by the substance depends not only on the overall temperature difference but also the temperature-drop across wall.

(c)

Interpretation Introduction

Interpretation:

Rise in the magnitude of heat flux is to be determined.

Concept Introduction:

Magnitude of heat flux is actually inversely proportional to the ratio of overall thermal resistances between the previous and modified design. This means that the factors to consider are thermal resistance of previous design as calculated in sub-part (a) and a new overall composite thermal resistance that includes the effect of new layer and shell thickness along with the thermal conductivities of materials in question.

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Answer 3

Question

Chapter 10, Problem 10.9P

(a)

Interpretation Introduction

Interpretation:

Temperature difference across wall is to be determined.

Concept Introduction:

The fundamental concept of steady state conduction is used to determine the temperature drop. Temperature drop across the wall depends on the ratio of overall thermal resistance and wall resistance as well as inner and outer fluid temperatures.

(b)

Interpretation Introduction

Interpretation:

Polymer deposit thickness is to be determined.

Concept Introduction:

Substance thickness depends on product of thermal resistance offered by the substance and its thermal conductivity. Furthermore, thermal resistance offered by the substance depends not only on the overall temperature difference but also the temperature-drop across wall.

(c)

Interpretation Introduction

Interpretation:

Rise in the magnitude of heat flux is to be determined.

Concept Introduction:

Magnitude of heat flux is actually inversely proportional to the ratio of overall thermal resistances between the previous and modified design. This means that the factors to consider are thermal resistance of previous design as calculated in sub-part (a) and a new overall composite thermal resistance that includes the effect of new layer and shell thickness along with the thermal conductivities of materials in question.

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Answer 4

Question

Chapter 10, Problem 10.9P

(a)

Interpretation Introduction

Interpretation:

Temperature difference across wall is to be determined.

Concept Introduction:

The fundamental concept of steady state conduction is used to determine the temperature drop. Temperature drop across the wall depends on the ratio of overall thermal resistance and wall resistance as well as inner and outer fluid temperatures.

(b)

Interpretation Introduction

Interpretation:

Polymer deposit thickness is to be determined.

Concept Introduction:

Substance thickness depends on product of thermal resistance offered by the substance and its thermal conductivity. Furthermore, thermal resistance offered by the substance depends not only on the overall temperature difference but also the temperature-drop across wall.

(c)

Interpretation Introduction

Interpretation:

Rise in the magnitude of heat flux is to be determined.

Concept Introduction:

Magnitude of heat flux is actually inversely proportional to the ratio of overall thermal resistances between the previous and modified design. This means that the factors to consider are thermal resistance of previous design as calculated in sub-part (a) and a new overall composite thermal resistance that includes the effect of new layer and shell thickness along with the thermal conductivities of materials in question.

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Answer 5

Chapter 10, Problem 10.9P

(a)

Interpretation Introduction

Interpretation:

Temperature difference across wall is to be determined.

Concept Introduction:

The fundamental concept of steady state conduction is used to determine the temperature drop. Temperature drop across the wall depends on the ratio of overall thermal resistance and wall resistance as well as inner and outer fluid temperatures.

(b)

Interpretation Introduction

Interpretation:

Polymer deposit thickness is to be determined.

Concept Introduction:

Substance thickness depends on product of thermal resistance offered by the substance and its thermal conductivity. Furthermore, thermal resistance offered by the substance depends not only on the overall temperature difference but also the temperature-drop across wall.

(c)

Interpretation Introduction

Interpretation:

Rise in the magnitude of heat flux is to be determined.

Concept Introduction:

Magnitude of heat flux is actually inversely proportional to the ratio of overall thermal resistances between the previous and modified design. This means that the factors to consider are thermal resistance of previous design as calculated in sub-part (a) and a new overall composite thermal resistance that includes the effect of new layer and shell thickness along with the thermal conductivities of materials in question.

Answer 6

Chapter 10, Problem 10.9P

(a)

Interpretation Introduction

Interpretation:

Temperature difference across wall is to be determined.

Concept Introduction:

The fundamental concept of steady state conduction is used to determine the temperature drop. Temperature drop across the wall depends on the ratio of overall thermal resistance and wall resistance as well as inner and outer fluid temperatures.

Answer 7

Chapter 10, Problem 10.9P

(a)

Interpretation Introduction

Interpretation:

Temperature difference across wall is to be determined.

Concept Introduction:

The fundamental concept of steady state conduction is used to determine the temperature drop. Temperature drop across the wall depends on the ratio of overall thermal resistance and wall resistance as well as inner and outer fluid temperatures.

Answer 8

(b)

Interpretation Introduction

Interpretation:

Polymer deposit thickness is to be determined.

Concept Introduction:

Substance thickness depends on product of thermal resistance offered by the substance and its thermal conductivity. Furthermore, thermal resistance offered by the substance depends not only on the overall temperature difference but also the temperature-drop across wall.

Answer 9

(b)

Interpretation Introduction

Interpretation:

Polymer deposit thickness is to be determined.

Concept Introduction:

Substance thickness depends on product of thermal resistance offered by the substance and its thermal conductivity. Furthermore, thermal resistance offered by the substance depends not only on the overall temperature difference but also the temperature-drop across wall.

Answer 10

(c)

Interpretation Introduction

Interpretation:

Rise in the magnitude of heat flux is to be determined.

Concept Introduction:

Magnitude of heat flux is actually inversely proportional to the ratio of overall thermal resistances between the previous and modified design. This means that the factors to consider are thermal resistance of previous design as calculated in sub-part (a) and a new overall composite thermal resistance that includes the effect of new layer and shell thickness along with the thermal conductivities of materials in question.

Answer 11

(c)

Interpretation Introduction

Interpretation:

Rise in the magnitude of heat flux is to be determined.

Concept Introduction:

Magnitude of heat flux is actually inversely proportional to the ratio of overall thermal resistances between the previous and modified design. This means that the factors to consider are thermal resistance of previous design as calculated in sub-part (a) and a new overall composite thermal resistance that includes the effect of new layer and shell thickness along with the thermal conductivities of materials in question.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 10 - Prob. 10.1P Ch. 10 - Prob. 10.2P Ch. 10 - Prob. 10.3P Ch. 10 - Prob. 10.4P Ch. 10 - Prob. 10.9P Ch. 10 - Prob. 10.10P Ch. 10 - Prob. 10.11P Ch. 10 - Prob. 10.12P Ch. 10 - Prob. 10.13P Ch. 10 - Prob. 10.14P

Solution Summary: The author explains that the fundamental concept of steady state conduction is used to determine the temperature difference across wall.

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Chapter 10 Solutions