LEADER 05443nam 2200661Ia 450 001 9910782364503321 005 20200520144314.0 010 $a1-283-07423-0 010 $a9786613074232 010 $a0-08-055920-4 035 $a(CKB)1000000000547766 035 $a(EBL)405191 035 $a(OCoLC)476221864 035 $a(SSID)ssj0000234750 035 $a(PQKBManifestationID)12043375 035 $a(PQKBTitleCode)TC0000234750 035 $a(PQKBWorkID)10241463 035 $a(PQKB)10483052 035 $a(MiAaPQ)EBC405191 035 $a(Au-PeEL)EBL405191 035 $a(CaPaEBR)ebr10243934 035 $a(PPN)170602982 035 $a(EXLCZ)991000000000547766 100 $a19991006d2008 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aRefrigeration and air-conditioning$b[electronic resource] /$fG.F. Hundy, A.R. Trott and T. Welch 205 $a4th ed. 210 $aOxford ;$aBoston $cButterworth Heinemann$d2008 215 $a1 online resource (392 p.) 300 $aDescription based upon print version of record. 311 $a0-7506-8519-0 320 $aIncludes bibliographical references (p. [369]-372) and index. 327 $aFront cover; Refrigeration and air-conditioning; Copyright page; Contents; Preface; Acknowledgements; List of Abbreviations; Chapter 1 Fundamentals; 1.1 INTRODUCTION; 1.2 TEMPERATURE, WORK AND HEAT; 1.3 HEAT; 1.4 BOILING POINT; 1.5 GENERAL GAS LAWS; 1.6 DALTON'S LAW; 1.7 HEAT TRANSFER; 1.8 TRANSIENT HEAT FLOW; 1.9 TWO-PHASE HEAT TRANSFER; Chapter 2 The refrigeration cycle; 2.1 IDEAL CYCLE; 2.2 SIMPLE VAPOUR COMPRESSION CYCLE; 2.3 PRACTICAL CONSIDERATIONS AND COP; 2.4 MULTISTAGE CYCLES; 2.5 NON VAPOUR COMPRESSION CYCLES; Chapter 3 Refrigerants; 3.1 INTRODUCTION 327 $a3.2 IDEAL PROPERTIES FOR A REFRIGERANT3.3 OZONE DEPLETION POTENTIAL; 3.4 GLOBAL WARMING POTENTIAL; 3.5 NOMENCLATURE; 3.6 REFRIGERANT BLENDS AND GLIDE; 3.7 REFRIGERANT APPLICATIONS; 3.8 HEALTH AND SAFETY; Chapter 4 Compressors; 4.1 INTRODUCTION; 4.2 THE PISTON COMPRESSION PROCESS; 4.3 MULTI-CYLINDER COMPRESSORS; 4.4 VALVES; 4.5 CAPACITY REDUCTION; 4.6 ENCLOSED MOTORS; 4.7 OPEN COMPRESSORS; 4.8 COOLING AND PROTECTION; 4.9 STRAINERS, LUBRICATION AND CRANKCASE HEATERS; 4.10 COMPRESSOR EFFICIENCY; 4.11 SCREW COMPRESSORS; 4.12 SCROLL COMPRESSORS; 4.13 SLIDING AND ROTARY VANE COMPRESSORS 327 $a4.14 DYNAMIC COMPRESSORSChapter 5 Oil in refrigerant circuits; 5.1 INTRODUCTION; 5.2 REQUIREMENTS AND CHARACTERISTICS; 5.3 MOISTURE AND AIR CONTAMINATION; 5.4 OIL SEPARATORS; 5.5 OIL CIRCULATION; Chapter 6 Condensers and cooling towers; 6.1 INTRODUCTION; 6.2 HEAT TO BE REMOVED; 6.3 AIR-COOLED CONDENSERS; 6.4 WATER-COOLED CONDENSERS; 6.5 COOLING TOWERS; 6.6 EVAPORATIVE CONDENSERS; 6.7 WATER TREATMENT; 6.8 CONDENSER MAINTENANCE; 6.9 LEGIONELLA; 6.10 CONDENSER FITTINGS; 6.11 OTHER FORMS OF CONDENSER; 6.12 WINTER OPERATION; 6.13 RECEIVERS; 6.14 DRY COOLERS; Chapter 7 Evaporators; 7.1 INTRODUCTION 327 $a7.2 AIR COOLING EVAPORATORS7.3 LIQUID COOLING EVAPORATORS; 7.4 PLATE EVAPORATORS FOR FREEZING; 7.5 DEFROSTING; 7.6 CONDENSATE PUMPS; Chapter 8 Expansion valves; 8.1 INTRODUCTION; 8.2 THERMOSTATIC EXPANSION VALVES; 8.3 EXTERNAL EQUALIZER; 8.4 ELECTRONIC EXPANSION VALVES; 8.5 CAPILLARY TUBES AND RESTRICTORS; 8.6 LOW-PRESSURE FLOAT VALVES AND SWITCHES; 8.7 HIGH-PRESSURE FLOAT VALVES; 8.8 OTHER LEVEL CONTROLS; Chapter 9 Controls and other circuit components; 9.1 INTRODUCTION; 9.2 THERMOSTATS; 9.3 HUMIDISTATS; 9.4 PRESSURE SWITCHES; 9.5 OIL PRESSURE SWITCHES; 9.6 PRESSURE GAUGES 327 $a9.7 SOLENOID VALVES9.8 EVAPORATOR PRESSURE REGULATION VALVES; 9.9 HOT GAS BY-PASS VALVES; 9.10 SHUT-OFF VALVES; 9.11 FILTER-DRIERS; 9.12 SIGHT GLASSES; 9.13 SUCTION ACCUMULATORS; 9.14 SUCTION-TO-LIQUID HEAT EXCHANGERS; 9.15 CONDENSER PRESSURE REGULATORS; 9.16 RELIEF VALVES; 9.17 STRAINERS; 9.18 CHARGING CONNECTION; 9.19 CHECK VALVES; 9.20 LIQUID REFRIGERANT PUMPS; Chapter 10 Component selection and balancing; 10.1 INTRODUCTION; 10.2 CRITERIA AND OPTIONS; 10.3 EVAPORATING TEMPERATURE; 10.4 EVAPORATOR; 10.5 COMPRESSOR; 10.6 CONDENSER; 10.7 EXPANSION VALVE; 10.8 SIZING PIPE AND OTHER COMPONENTS 327 $a10.9 RE-CHECK COMPONENTS 330 $aNow in its fourth edition, this respected text delivers a comprehensive introduction to the principles and practice of refrigeration. Clear and straightforward, it is designed for students (NVQ/vocational level) and professional HVAC engineers, including those on short or CPD courses. Inexperienced readers are provided with a comprehensive introduction to the fundamentals of the technology. With its concise style yet broad sweep the book covers most of the applications professionals will encounter, enabling them to understand, specify, commission, use and maintain these systems. Many readers w 606 $aRefrigeration and refrigerating machinery 606 $aAir conditioning 615 0$aRefrigeration and refrigerating machinery. 615 0$aAir conditioning. 676 $a621.5/6 700 $aTrott$b A. R$g(Albert Runcorn),$f1919-$01526253 701 $aWelch$b T$01202507 701 $aHundy$b G. F$0752134 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910782364503321 996 $aRefrigeration and air-conditioning$93768166 997 $aUNINA