Heat and mass transfer in buildings / Keith J. Moss.

Format:

Book

Author/Creator:

Moss, Keith.

Language:

English

Subjects (All):

Heating--Mathematics.

Heating.

Heat--Transmission--Mathematical models.

Heat.

Numerical calculations.

Physical Description:

xviii, 307 pages : illustrations ; 24 cm

Edition:

Second edition.

Place of Publication:

London ; New York : Taylor & Francis, 2007.

Contents:

List of examples x

List of case studies xv

1 Thermal comfort and assessment 1

1.2 Heat energy and temperature 2

1.3 Thermometry 3

1.4 Types of thermometer 4

1.5 Heat loss from the human body 5

1.6 Physiological responses 10

1.7 Thermal assessment 11

1.8 Thermal comfort criteria 17

1.9 Temperature profiles 24

2 Heat conduction 26

2.2 Heat conduction at right angles to the surface 27

2.3 Surface conductance 31

2.4 Heat conduction in ground floors 36

2.5 Heat conduction in suspended ground floors 38

2.6 Thermal bridging and non-standard U values 41

2.7 Non-standard U values, multi-webbed bridges 43

2.8 Radial conductive heat flow 46

3 Heat convection 54

3.2 Rational formulae for free and forced heat convection 57

3.3 Temperature definitions 59

3.4 Convective heat output from a panel radiator 61

3.5 Heat output from a freely suspended pipe coil 63

3.6 Heat transfer from a tube in a condensing secondary fluid 64

3.7 Cooling flux from a chilled ceiling 66

3.8 Heat flux off a floor surface from an embedded pipe coil 68

3.9 Heat transfer notes 70

4 Heat radiation 72

4.2 Surface characteristics 73

4.3 The greenhouse effect 76

4.4 Spectral wave forms 76

4.5 Monochromatic heat radiation 77

4.6 Laws of black body radiation 78

4.7 Laws of grey body radiation 80

4.8 Radiation exchange between a grey body and a grey enclosure 81

4.9 Heat transfer coefficients for black and grey body radiation 82

4.10 Heat radiation flux I 83

4.11 Problem solving 84

4.12 Asymmetric heat radiation 96

4.13 Historical references 97

5 Measurement of fluid flow 98

5.2 Flow characteristics 99

5.3 Conservation of energy in a moving fluid 100

5.4 Measurement of gauge pressure with an uncalibrated manometer 101

5.5 Measurement of pressure difference with an uncalibrated differential manometer 102

5.6 Measurement of flow rate using a venturi meter and orifice plate 104

5.7 Measurement of air flow using a pitot static tube 111

6 Characteristics of laminar and turbulent flow 115

6.2 Laminar flow 116

6.3 Turbulent flow 119

6.4 Boundary layer theory 121

6.5 Characteristics of the straight pipe or duct 125

6.6 Determination of the frictional coefficient in turbulent flow 126

6.7 Solving problems 127

7 Mass transfer of fluids in pipes, ducts and channels 136

7.2 Solutions to problems in frictionless flow 137

7.3 Frictional flow in flooded pipes and ducts 144

7.4 Semi-graphical solutions to frictional flow in pipes and ducts 160

7.5 Gravitational flow in flooded pipes 162

7.6 Gravitational flow in partially flooded pipes and channels 170

7.7 Alternative rational formulae for partial flow 176

7.8 Flow of natural gas in pipes 180

7.9 Flow of compressed air in pipes 181

7.10 Vacuum pipe sizing 183

8 Natural ventilation in buildings 185

8.2 Aerodynamics around a building 186

8.3 Effects on cross-ventilation from the wind 191

8.4 The stack effect 194

8.5 Natural ventilation to internal spaces with openings in one wall only 198

8.6 Ventilation for cooling purposes 200

8.7 Fan assisted ventilation 205

9 Regimes of fluid flow in heat exchangers 207

9.2 Parallel flow and counterflow heat exchangers 209

9.3 Heat transfer equations 212

9.4 Heat exchanger performance 219

9.5 Cross flow 225

Appendix 1 Verifying the form of an equation by dimensional analysis 233

AI.2 Dimensions in use 234

Appendix 2 Solving problems by dimensional analysis 239

A2.2 Establishing the form of an equation 240

A2.3 Dimensional analysis in experimental work 243

A2.4 Examples in dimensional analysis 244

Appendix 3 Renewable energy systems 263

A3.2 Wind turbines 264

A3.3 Hydro power 267

A3.4 Marine turbines 275

A3.5 Solar irradiation and the solar constant 277

A3.6 Photovoltaics 281

A3.7 Biomass 282

A3.8 Combined heat and power 285

A3.9 Fuel cell CHP 287

Appendix 4 Towards sustainable building engineering 291

A4.2 Thermodynamics and sustainability 292

A4.3 The laws of thermodynamics 294

A4.4 Power supplies 297

A4.5 Products and systems 297

A4.6 The building footprint 300

A4.7 Scenarios for building services 300.

Notes:

Prev. ed. published in 1998.

Includes bibliographical references (page [304]) and index.

ISBN:

9780415409070

0415409071

9780415409087

041540908X

9780203962510

0203962516

OCLC:

73742725