(a) Interpretation: The flowchart for the process needs to be drawn. The composition of the gas existing the furnace, the heat Q ˙ ( kJ/h ) and the rate of steam produced in the boiler needs to be determined. Concept introduction: From the block diagram of the process, we can elaborate composition of each molecule in gas. Steam generation rate can be calculated by energy balance on boiler and rate of heat generation can be found by total energy balance.

Question

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Answer 1

Question

Chapter 9, Problem 9.71P

Interpretation Introduction

(a)

Interpretation:

The flowchart for the process needs to be drawn. The composition of the gas existing the furnace, the heat Q˙(kJ/h) and the rate of steam produced in the boiler needs to be determined.

Concept introduction:

From the block diagram of the process, we can elaborate composition of each molecule in gas. Steam generation rate can be calculated by energy balance on boiler and rate of heat generation can be found by total energy balance.

Interpretation Introduction

(b)

Interpretation:

The temperature of the entered air in the furnace and the rate of production of steam (kg/h) needs to be determined.

Concept introduction:

In this part, first we have to calculate total enthalpy balance or steam generation rate. Then energy balance on air preheater.By comparing both the quantites we can calculate the temperature of the air entering into the furnace.

Interpretation Introduction

(c)

Interpretation:

Write the significance of air preheahing and reason for using combustion gases as heating media in boiler.

Concept introduction:

In this question we have to describe about working of air preheater and its effect on overall system performance.Air preheater eliminates heat loss of exhaust gases and increases efficiency.

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Answer 2

Question

Chapter 9, Problem 9.71P

Interpretation Introduction

(a)

Interpretation:

The flowchart for the process needs to be drawn. The composition of the gas existing the furnace, the heat Q˙(kJ/h) and the rate of steam produced in the boiler needs to be determined.

Concept introduction:

From the block diagram of the process, we can elaborate composition of each molecule in gas. Steam generation rate can be calculated by energy balance on boiler and rate of heat generation can be found by total energy balance.

Interpretation Introduction

(b)

Interpretation:

The temperature of the entered air in the furnace and the rate of production of steam (kg/h) needs to be determined.

Concept introduction:

In this part, first we have to calculate total enthalpy balance or steam generation rate. Then energy balance on air preheater.By comparing both the quantites we can calculate the temperature of the air entering into the furnace.

Interpretation Introduction

(c)

Interpretation:

Write the significance of air preheahing and reason for using combustion gases as heating media in boiler.

Concept introduction:

In this question we have to describe about working of air preheater and its effect on overall system performance.Air preheater eliminates heat loss of exhaust gases and increases efficiency.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 9, Problem 9.71P

Interpretation Introduction

(a)

Interpretation:

The flowchart for the process needs to be drawn. The composition of the gas existing the furnace, the heat Q˙(kJ/h) and the rate of steam produced in the boiler needs to be determined.

Concept introduction:

From the block diagram of the process, we can elaborate composition of each molecule in gas. Steam generation rate can be calculated by energy balance on boiler and rate of heat generation can be found by total energy balance.

Interpretation Introduction

(b)

Interpretation:

The temperature of the entered air in the furnace and the rate of production of steam (kg/h) needs to be determined.

Concept introduction:

In this part, first we have to calculate total enthalpy balance or steam generation rate. Then energy balance on air preheater.By comparing both the quantites we can calculate the temperature of the air entering into the furnace.

Interpretation Introduction

(c)

Interpretation:

Write the significance of air preheahing and reason for using combustion gases as heating media in boiler.

Concept introduction:

In this question we have to describe about working of air preheater and its effect on overall system performance.Air preheater eliminates heat loss of exhaust gases and increases efficiency.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 9, Problem 9.71P

Interpretation Introduction

(a)

Interpretation:

The flowchart for the process needs to be drawn. The composition of the gas existing the furnace, the heat Q˙(kJ/h) and the rate of steam produced in the boiler needs to be determined.

Concept introduction:

From the block diagram of the process, we can elaborate composition of each molecule in gas. Steam generation rate can be calculated by energy balance on boiler and rate of heat generation can be found by total energy balance.

Interpretation Introduction

(b)

Interpretation:

The temperature of the entered air in the furnace and the rate of production of steam (kg/h) needs to be determined.

Concept introduction:

In this part, first we have to calculate total enthalpy balance or steam generation rate. Then energy balance on air preheater.By comparing both the quantites we can calculate the temperature of the air entering into the furnace.

Interpretation Introduction

(c)

Interpretation:

Write the significance of air preheahing and reason for using combustion gases as heating media in boiler.

Concept introduction:

In this question we have to describe about working of air preheater and its effect on overall system performance.Air preheater eliminates heat loss of exhaust gases and increases efficiency.

Expert Solution & Answer

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Answer 5

Chapter 9, Problem 9.71P

Interpretation Introduction

(a)

Interpretation:

The flowchart for the process needs to be drawn. The composition of the gas existing the furnace, the heat Q˙(kJ/h) and the rate of steam produced in the boiler needs to be determined.

Concept introduction:

From the block diagram of the process, we can elaborate composition of each molecule in gas. Steam generation rate can be calculated by energy balance on boiler and rate of heat generation can be found by total energy balance.

Interpretation Introduction

(b)

Interpretation:

The temperature of the entered air in the furnace and the rate of production of steam (kg/h) needs to be determined.

Concept introduction:

In this part, first we have to calculate total enthalpy balance or steam generation rate. Then energy balance on air preheater.By comparing both the quantites we can calculate the temperature of the air entering into the furnace.

Interpretation Introduction

(c)

Interpretation:

Write the significance of air preheahing and reason for using combustion gases as heating media in boiler.

Concept introduction:

In this question we have to describe about working of air preheater and its effect on overall system performance.Air preheater eliminates heat loss of exhaust gases and increases efficiency.

Answer 6

Chapter 9, Problem 9.71P

Interpretation Introduction

(a)

Interpretation:

The flowchart for the process needs to be drawn. The composition of the gas existing the furnace, the heat Q˙(kJ/h) and the rate of steam produced in the boiler needs to be determined.

Concept introduction:

From the block diagram of the process, we can elaborate composition of each molecule in gas. Steam generation rate can be calculated by energy balance on boiler and rate of heat generation can be found by total energy balance.

Answer 7

Chapter 9, Problem 9.71P

Interpretation Introduction

(a)

Interpretation:

The flowchart for the process needs to be drawn. The composition of the gas existing the furnace, the heat Q˙(kJ/h) and the rate of steam produced in the boiler needs to be determined.

Concept introduction:

From the block diagram of the process, we can elaborate composition of each molecule in gas. Steam generation rate can be calculated by energy balance on boiler and rate of heat generation can be found by total energy balance.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The temperature of the entered air in the furnace and the rate of production of steam (kg/h) needs to be determined.

Concept introduction:

In this part, first we have to calculate total enthalpy balance or steam generation rate. Then energy balance on air preheater.By comparing both the quantites we can calculate the temperature of the air entering into the furnace.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The temperature of the entered air in the furnace and the rate of production of steam (kg/h) needs to be determined.

Concept introduction:

In this part, first we have to calculate total enthalpy balance or steam generation rate. Then energy balance on air preheater.By comparing both the quantites we can calculate the temperature of the air entering into the furnace.

Answer 10

Interpretation Introduction

(c)

Interpretation:

Write the significance of air preheahing and reason for using combustion gases as heating media in boiler.

Concept introduction:

In this question we have to describe about working of air preheater and its effect on overall system performance.Air preheater eliminates heat loss of exhaust gases and increases efficiency.

Answer 11

Interpretation Introduction

(c)

Interpretation:

Write the significance of air preheahing and reason for using combustion gases as heating media in boiler.

Concept introduction:

In this question we have to describe about working of air preheater and its effect on overall system performance.Air preheater eliminates heat loss of exhaust gases and increases efficiency.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 9 - The standard heat of the reaction...Ch. 9 - Prob. 9.2P Ch. 9 - Prob. 9.3P Ch. 9 - The standard heat of the reaction...Ch. 9 - Prob. 9.5P Ch. 9 - Prob. 9.6P Ch. 9 - Prob. 9.7P Ch. 9 - Prob. 9.8P Ch. 9 - The standard heat of combustion of gaseous ethane...Ch. 9 - The standard heat of combustion (AH°) of liquid...

Solution Summary: The author explains the flowchart for the process. The composition of the gas existing the furnace, the heat and the rate of steam produced in the boiler needs to be determined.

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Chapter 9 Solutions