Building Services Engineering 5th Edition Handbook

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Units and constants xv Table 2 Multiples and submultiples. Quantity Name Symbol 10 12 tera T 10 9 giga G 10 6 mega M 10 3 kilo k 10 −3 milli m 10 −6 micro µ Table 3 Physical constants. Gravitational acceleration g 9.807 m/s 2 Specific heat capacity of air SHC 1.012 kJ/kgK Specific heat capacity of water SHC 4.186 kJ/kgK Stefan–Boltzmann constant σ 5.67 × 10 −8 W/m 2 K 4 Density of air at 20 ◦ C, 1013.25 rnb ρ 1.205 kg/m 3 Density of water at 4 ◦ C ρ 10 3 kg/m 3 Exponential e 2.718
Symbols Symbol Description Units A area m 2 electrical current A A f floor area m 2 physical constant dB A g cross-sectional area of gutter mm 2 A o area of water flow at gutter outlet mm 2 A r roof area m 2 A w walling area m 2 α (alpha) electrical temperature coefficient of resistance / ◦ C percentage depreciation and interest charge % absorption coefficient dimensionless ᾱ mean absorption coefficient dimensionless AET allowed exposure time min B building envelope number sound reduction index dB B f physical constant dB b barometric pressure bar, b β (beta) angle degree C fuel cost per appropriate unit carbon C 1 , C 2 constant C i interior air pollution decipol C o outdoor air pollution decipol C r room concentration % C s supply air concentration % C T concentration after time T % C 3 electrical load W/m 2 clo clothing thermal insulation C v ventilation coefficient CO 2 carbon dioxide %, ppm D gutter depth mm DI directivity index dB DU demand or discharge unit d pipe diameter m or mm distance m
Page 2 and 3: Building Services Engineering
Page 4 and 5: Building Services Engineering Fifth
Page 6 and 7: Contents Preface to fifth edition A
Page 8 and 9: Contents vii Sick building syndrome
Page 10 and 11: Contents ix Circuit design 294 Cabl
Page 12 and 13: Preface to fifth edition Building S
Page 14 and 15: Acknowledgements I am particularly
Page 18 and 19: Symbols xvii Symbol Description Uni
Page 20: Symbols xix Symbol Description Unit
Page 23 and 24: 2 Built environment Introduction Th
Page 25 and 26: 4 Built environment Ventilation The
Page 27 and 28: 6 Built environment (a) At full occ
Page 29 and 30: 8 Built environment Table 1.2 Compa
Page 31 and 32: 10 Built environment Because of the
Page 33 and 34: 12 Built environment Visual display
Page 35 and 36: 14 Built environment v = 7 m/s t a
Page 37 and 38: 16 Built environment 1.4 Sling psyc
Page 39 and 40: 18 Built environment 1.7 Thermistor
Page 41 and 42: 20 Built environment t res = t g (1
Page 43 and 44: 22 Built environment great care wit
Page 45 and 46: 24 Built environment 16. An hotel l
Page 47 and 48: 26 Built environment 37. Are any of
Page 49 and 50: 28 Built environment building has a
Page 51 and 52: 30 Built environment 73. What was t
Page 53 and 54: 32 Energy economics Introduction Bu
Page 55 and 56: 34 Energy economics 16. air-to-air
Page 57 and 58: 36 Energy economics 1 kWh = 1 kWh
Page 59 and 60: 38 Energy economics 2. Heat transfe
Page 61 and 62: 40 Energy economics For solid fuel
Page 63 and 64: 42 Energy economics gas cost = 1.80
Page 65 and 66: 44 Energy economics Table 2.5 Carbo
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46 Energy economics EXAMPLE 2.8 A h
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48 Energy economics annual cost = u
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50 Energy economics EXAMPLE 2.12 Ex
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52 Energy economics l = 0.035 ( 1 0
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54 Energy economics Table 2.11 Valu
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56 Energy economics From Table 2.4
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58 Energy economics 3. Minimum outs
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3 Heat loss calculations Learning o
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62 Heat loss calculations Table 3.1
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64 Heat loss calculations Table 3.6
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66 Heat loss calculations Where onl
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68 Heat loss calculations The venti
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70 Heat loss calculations The surro
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72 Heat loss calculations The speci
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74 Heat loss calculations where R m
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76 Heat loss calculations The addit
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78 Heat loss calculations operation
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80 Heat loss calculations 2. The fo
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82 Heat loss calculations internal
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84 Heat loss calculations 27. Which
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86 Heating Key terms and concepts a
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88 Heating 4.2 Electrically heated
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90 Heating Sheet steel case Removab
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92 Heating Floor finish Screed with
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94 Heating Flue Return air plenum F
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96 Heating Table 4.1 Classification
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98 Heating Table 4.2 Heat output fr
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100 Heating Table 4.3 Flow of water
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102 Heating and, maximum available
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104 Heating This means that one vol
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106 Heating Performance testing A r
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108 Heating Electrical power genera
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110 Heating Combined heat and power
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112 Heating 3. A building energy ma
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114 Heating Connections are made to
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116 Heating remotely the MWh consum
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118 Heating 13. The two-pipe heatin
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120 Heating 27. Which is not correc
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122 Heating 39. Which of these is t
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124 Heating 4. Heat supplied is cha
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126 Ventilation and air conditionin
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6 Hot- and cold-water supplies Lear
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180 Hot- and cold-water supplies Wa
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182 Hot- and cold-water supplies po
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184 Hot- and cold-water supplies Ce
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186 Hot- and cold-water supplies st
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188 Hot- and cold-water supplies 0.
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190 Hot- and cold-water supplies 53
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192 Hot- and cold-water supplies an
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194 Hot- and cold-water supplies Ta
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196 Hot- and cold-water supplies Ta
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198 Hot- and cold-water supplies (a
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204 Hot- and cold-water supplies 49
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206 Soil and waste systems Introduc
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208 Soil and waste systems Open to
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210 Soil and waste systems 7. Bends
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212 Soil and waste systems The inte
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214 Soil and waste systems 40 mm wa
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216 Soil and waste systems Table 7.
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218 Soil and waste systems 50 mm ve
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220 Soil and waste systems 3. Long
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222 Surface-water drainage Table 8.
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224 Surface-water drainage Rectangu
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226 Surface-water drainage The solu
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228 Surface-water drainage 7. A PVC
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230 Below-ground drainage Design ca
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232 Below-ground drainage Manhole:
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234 Below-ground drainage From Fig.
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236 Below-ground drainage storage v
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238 Below-ground drainage 14. The f
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240 Condensation in buildings mould
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242 Condensation in buildings The w
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244 Condensation in buildings EXAMP
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246 Condensation in buildings This
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248 Condensation in buildings Tempe
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250 Condensation in buildings and,
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252 Condensation in buildings EXAMP
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254 Condensation in buildings Tempe
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256 Condensation in buildings For t
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258 Condensation in buildings 4. Ev
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11 Lighting Learning objectives Stu
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262 Lighting Table 11.1 Typical val
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264 Lighting Light sources 9 9 9 Wi
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266 Lighting Utilization factor The
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268 Lighting From Table 11.3, for a
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270 Lighting Table 11.4 Lamp data.
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272 Lighting number of lamps = 12.8
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274 Lighting 3. Sketch and describe
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276 Lighting 4. Insufficient inform
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278 Lighting 3. 800 lm/m 2 . 4. 260
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12 Gas Learning objectives Study of
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282 Gas Open to atmosphere Rubber p
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284 Gas EL = (1.25 × 34) m = 42.5
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286 Gas become exhausted. SNG will
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288 Gas are ignited and an air flow
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290 Gas 3. The pipe from a gas mete
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292 Electrical installations Key te
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294 Electrical installations curren
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296 Electrical installations 1 Volt
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298 Electrical installations power
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300 Electrical installations For1mm
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302 Electrical installations Table
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304 Electrical installations Incomi
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306 Electrical installations energi
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308 Electrical installations Starte
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310 Electrical installations Ethyle
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312 Electrical installations Test o
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314 Electrical installations Joint
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316 Electrical installations 4. 100
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318 Electrical installations 39. Wh
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320 Electrical installations 51. Wh
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322 Room acoustics 20. understand t
Page 345 and 346:
324 Room acoustics pump blades and
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326 Room acoustics ceiling, Q is 4.
Page 349 and 350:
328 Room acoustics Table 14.2 Solut
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330 Room acoustics Table 14.3 Fan s
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332 Room acoustics Table 14.4 Illus
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334 Room acoustics (Sound Research
Page 357 and 358:
336 Room acoustics The target room
Page 359 and 360:
338 Room acoustics Table 14.6 Noise
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340 Room acoustics 100 90 80 70 Sou
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342 Room acoustics 24. A forced-dra
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344 Room acoustics The room directi
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346 Room acoustics 3. Multiple sour
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348 Room acoustics 55. Which is not
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350 Fire protection computer monito
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352 Fire protection halogen gas, wh
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354 Fire protection the reach of tu
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356 Fire protection Range pipe Spri
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358 Fire protection Fire compartmen
Page 381 and 382:
360 Fire protection 16. Which are c
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362 Plant and service areas Key ter
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364 Plant and service areas 2.0 1.5
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366 Plant and service areas Fuel st
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368 Plant and service areas a minim
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370 Plant and service areas An unde
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372 Plant and service areas Air cha
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374 Plant and service areas 100 mm
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376 Plant and service areas Fire co
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378 Plant and service areas Table 1
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380 Plant and service areas 11. Wha
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17 Mechanical transportation Learni
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384 Mechanical transportation Table
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386 Mechanical transportation Crowd
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388 Mechanical transportation Hydra
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390 Mechanical transportation 4. Co
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18 Question bank Learning objective
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394 Question bank 8. Which correctl
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396 Question bank 5. This building
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398 Understanding units Questions 1
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400 Understanding units 15. Which i
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402 Understanding units 29. Which o
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404 Understanding units 43. Which i
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Appendix: answers to questions Chap
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408 Appendix Chapter 3 Heat loss ca
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410 Appendix 4. 0.007469 kg H 2 O/k
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412 Appendix 32. 5 33. 5 34. 3 35.
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414 Appendix 23. Lighting 1200 h/ye
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416 Appendix 27. 37 dB. 28. 39 dB.
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418 Appendix 15. 5 16. 2 17. 5 18.
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References Action Energy, Departmen
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Index Absorption 154, 324 Absorptio
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424 Index Gas burner controls 289 G
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426 Index Sensible heat gains 137 S
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