Book - School of Science and Technology

714 IndexIndirect hot water supplysystems 574, 576, 576Indoor contaminants 8Induced draughtsboilers 283cooling towers 551, 552fans 330Induction systemsair-conditioning 393±6control 649design calculations 528high velocityair-conditioning384, 384Industryfumes exhaust 368±9, 369heating system choices 118ventilation 351±3, 356±7,370±2warm air units 100, 105±7Inferential gas meters 309Inferential meters 225, 226Infiltrationair-change basis 50±1heat gains 520summer time 893ventilation loss 122whole building 58winter time 45±51Infra-red heaters 101, 107±8Inlet louvres 338Inlet vane dampers 481±3, 482Instantaneous heaters 564±6Insulationhot water pipes 601hot water systems 596methods 36±9, 37±9sound 465±6, 467standards 31±3U values 41winter time 29±30, 29Insurance 681Integral controllers 637±8Intelligence systems 656Intensitysolar radiation 72±3Interface temperatures 26±7Intermittent operation 60±5,94±5Internal heat gains 59, 521Internal temperatures 52, 93Internal wall U values 25International EnergyAgency405Interstitial condensation 42±3Investment appraisals 681±7Ionisation 9±10Iron oxide 128Iron radiators 187±8, 188Iron sectional boilers 268±9Isothermal enclosures 191, 192Isotherms 94, 94Isovel 416Jackman, P. J. 398, 426Jamieson, H. C. 52Jet burners 283±4, 284Jones, W. P. 20, 515Kata thermometers 15Kitchens 360±6, 361±5L.pneumophilia 549, 597, 600Labour 680Ladder hot water circuits 157Lancashire twin-flueboilers 272Latent heat 2gains 515seasonal influences 67Latent heat ofevaporation 159Lateral systems 414±16, 416Lean phase methods 299Legionnaires disease 348air-conditioning 379heat exchangers 513hot water supply589refrigerators 542, 548Legislation 30±3, 346see also Building regulationsLevel indicators 305Life cycles 681±3, 682±3, 698Lighting 90±1, 428, 428±9Lightweight buildings 79Linear ceiling diffusers 420, 421Liquid fuelschimneys 324±7combustion 321±2deliveries 301±2direct heating 99±100handling systems 306±8indirect heating 113±14properties 300±1, 301storage 302±6Liquidsdistribution 682thermal expansion 4Liquefied petroleum gas (LPG)copper pipes 313deliveries 311flow 313pipework 312±13properties 308, 309, 312steel pipes 313storage 311±12, 312Lithium bromide 508Live steam 159Loadings (pipes) 241±2Local fume extraction 367±8Local hot water systems 564±72Loudon, A. G. 23, 77Low emissivitycoatings 79Low temperaturehot water pipework 169panels 108water heating 144±8, 145Low velocityductworks 454Low water content boilers 274Low-ram 281LPG see Liquefied petroleum gasLuminous fires 100, 100, 107Machineryheat gains 91±2Magazine boilers 278, 278Magnetic conditioning 595Magnetite 231Mains losses 242±3Maintenance 679±80, 698Manholes 305Maritime climate 66Masonrymaterials 23±4Massatmospheric dust 485atmospheric solids 485flow (water) 233Materialschimneyconstruction 334flue construction 334hot water systems 595±6properties 2±4, 3Measurementsair velocity15ductwork 470±3humidity14±15, 14temperature 13±14, 13Mechanicalatomisation 283draughts 330extraction 355±60heat meters 225, 226inlets 359±60, 359refrigeration 530±3, 531±2separators 494, 495steam traps 220ventilation 672±4Mechanised design (watersystems) 247Medium densitypolythene 303Medium temperature watersystems 145, 148±9, 170Metabolic rates 7Metal radiant ceilingheating 181±2, 181±2Metal radiant panels 178±80, 179Meteorological data 376±7,376±7Meteorological Office 665±6, 666Meteorological wind speed354±5Meters 15, 224±7, 309, 463Methylene blue 486Micro turbines 699