Hvac presentation for beginers

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Hvac presentation for beginers

  1. 1. WELCOME TO THE WORLD OF HVAC FROM BUCC (HVAC)-MR. NEERAJ SHUKLA L&T (ECC) LTD.
  2. 2. WHAT IS HVAC ?  H- HEATING  V- VENTILATION  AC- AIR CONDITIONING
  3. 3. Few People think that HVAC is all about Luxury , Waste of money and Valuable Energy. BUT……………..!!
  4. 4. Of Course, It is the RIGHT of every individual to live in comfort and HVAC is committed for it. ALSO, HVAC serves the Industrial Segment to great extent.
  5. 5. VARIOUS APPLICATIONS OF AIR CONDITIONING  SHOPPING MALLS  AUDITORIUMS & THEATRES  HOSPITALS  HOTELS AND RESTAURENTS  OFFICES  COMMERCIAL COMPLEX  LUXURY APPARTMENTS  INFOTECH PARKS  PHARMA INDUSTRY  TELECOM INDUSTRY  AND MANY MORE………!!
  6. 6. WHAT IS TR ? 1 TR IS AMOUNT OF HEAT TO BE EXTRACTED FROM THE ATMOSPHERE FOR MELTING ONE METRIC TON OF ICE IN 24 HOURS. ONE TON OF REFRIGERATION (TR) EQUALS TO 12000 BTU/HR. OR 3025 KCAL/HR.
  7. 7. WHAT WE ARE GOING TO LEARN?  FUNCTIONS OF HVAC  BASIC OPERATING CYCLE  CLASSIFICATION OF AC SYSTEMS  ABOUT VARIOUS AC SYSTEMS  STEPS INVOLED IN DECIDING THE SYSTEM  ABOUT HEAT LOAD  TYPES OF COMPRESSORS  ABOUT AC EQIPMENT  ABOUT AIR DISTRIBUTION SYSTEM  ABOUT VENTILATION  RECENT TRENDS IN HVAC INDUSTY
  8. 8. FUNCTIONS OF HVAC  CONTROL OF AIR TEMPERATURE.  CONTROL OF MOISTURE CONTENT IN THE AIR.  PROPER AIR MOVEMENT.  TO HOLD THE AIR CONTAMINATION WITHIN ACCEPTABLE LIMITS.
  9. 9. BASIC COMPONENTS OF AIR CONDITIONING  COMPRESSOR  CONDENSER  THROTTLING DEVICE  EVAPORATOR
  10. 10. BASIC OPERATION CYCLE
  11. 11. ABOUT VARIOUS AC SYSTEMS
  12. 12. VARIOUS AC SYSTEMS
  13. 13. VARIOUS AC SYSTEMS  SPLIT UNITS  WINDOW AC  PACKAGE UNITS
  14. 14. WINDOW AC
  15. 15. DUCTABLE SPLIT UNITS
  16. 16. PACKAGE TYPE UNITS
  17. 17. DX SYSTEM
  18. 18. CHILLED WATER SYSTEM
  19. 19. VARIOUS AC SYSTEMS (CHILLED WATER AIR WASHER SYSTEM)
  20. 20. AIR FLOW PATTERN
  21. 21. SYSTEM SELECTION
  22. 22. STEPS INVOLVED IN DECIDING THE SYSTEM  CALCULATION OF COOLING LOAD REQUIREMENT  SELECTION OF TECHNO-ECONOMICAL SYSTEM  SELECTION OF EQUIPMENT  DESIGNING AIR DISTRIBUTION SYSTEM  DESIGNING WATER DISTRIBUTION SYSTEM  EVALUATION OF SYSTEM TO BE USED
  23. 23. IMPORTANT FACTORS FOR CALCULATION OF COOLING LOAD REQUIREMENT USE OF SPACE PHYSICAL DIMENSION OF SPACE CEILING HEIGHT CONSTRUCTION MATERIAL INSIDE ROOM DESIGN CONDITIONS AMBIENT CONDITIONS GLASS AREA EXPOSED TO SUN OCCUPANCY LIGHTING LOAD EQUIPMENT LOAD FRESH AIR REQUIREMENT INFILTRATION OF OUTSIDE AIR
  24. 24. FACTORS AFFECTING THE SYSTEM SELECTION  BUDGET OF CLIENT  NEED OF CLIENT  USE OF SPACE  AESTHETICS  FLOOR LAYOUT  DEPTH OF BEAM  LOCATION OF COLUMNS  POWER AVAILABILITY  WATER AVAILABILITY  SPACE FOR SERVICING
  25. 25. TYPES OF CHILLERS AND COMPRESSORS
  26. 26. TYPES OF CHILLERS  AIR COOLED TYPE  WATER COOLED TYPE
  27. 27. TYPES OF COMPRESSORS  RECIPROCATING TYPE  ROTARY TYPE  SCROLL TYPE  SCREW TYPE  CENTRIFUGAL TYPE
  28. 28. ENVIRONMENT-FRIENDLY REFRIGERANTS  R-134a  R-123  R-407C  R- 410A  R-22 (phase out on 2040)
  29. 29. ABOUT VARIOUS HVAC EQUIPMENT
  30. 30. COMMONLY USED EQUIPMENT  AIR HANDLING UNIT  FAN COIL UNIT  COOLING TOWER
  31. 31. COMMONLY USED EQUIPMENT (AIR HANDLING UNIT)  AHU IS THE EQUIPMENT WHICH PUMPS THE DESIGNED QUANTITY OF DEHUMIDIFIED AIR TO RESPECTIVE AREAS BY MEANS OF DUCTING.  BASIC AIR HANDLING UNIT (AHU) CONSISTS OF:- a)FAN SECTION WITH CENTRIFUGAL FAN AND MOTOR b)COIL SECTION WITH COIL c)FILTER SECTION WITH FILTERS  TYPES OF AIR HANDLING UNITS (AHU) a) SINGLE SKINNED AHU b) DOUBLE SKINNED AHU
  32. 32. COMMONLY USED EQUIPMENT (AIR HANDLING UNIT)  DEPENDING ON SPACE AVAILABILITY FOR AHU , THE AHUs ARE CLASSIFIED AS UNDER:- a) HORIZONTAL TYPE FLOOR MOUNTED UNIT b) VERTICAL TYPE FLOOR MOUNTED UNIT c) CEILING SUSPENDED UNIT
  33. 33. COMMONLY USED EQUIPMENT (AIR HANDLING UNIT)  TYPE OF AHU DEPENDING UPON LOCATION OF FAN:- a) DRAW THROUGH TYPE:- FAN IS LOCATED AFTER COOLING COIL b) BLOW THROUGH TYPE:- FAN IS LOCATED BEFORE COOLING COIL
  34. 34. COMMONLY USED EQUIPMENT (AIR HANDLING UNIT)  FOLLOWING ACCESSORIES CAN BE INCORPORATED IN AHU AS PER SYSTEM REQUIREMENT :- a)HUMIDIFIER b)HEATERS c)HOT WATER COIL e)RETURN AIR BOX f) PLENUM FOR FINE AND HEPA FILTERS g) HEAT RECOVERY WHEEL
  35. 35. TYPES OF COOLING TOWERS  NATURAL DRAFT TYPE  INDUCED DRAFT TYPE  FORCED DRAFT TYPE
  36. 36. TYPES OF COMMONLY USED PUMPS  MONOBLOCK TYPE  VERTICAL SPLIT CASE TYPE  HORIZONTAL SPLIT CASE TYPE  IN-LINE TYPE
  37. 37. COMMOMNLY USED MATERIALS FOR INSULATION  EXPANDED POLYSTYRENE (THERMACOLE)  EXPANDED POLYETHELENE  POLYURETHANE FOAM SECTIONS  FIBRE GLASS WOOL  NITRILE RUBBER  PHENOTHERM  ROCK WOOL
  38. 38. ABOUT DUCTING AND ACCESSORIES
  39. 39. TYPES OF DUCTING A)FACTORY FABRICATED DUCTS B)SITE FABRICATED DUCTS
  40. 40. FACTORY FABRICATED DUCTS
  41. 41. DUCTING ACCESSORIES
  42. 42. TYPES OF GRILLS AND DIFFUSERS  CONTINUOUS GRILLS  LINEAR GRILLS (ADJUSTABLE TYPE)  DIFFUSERS
  43. 43. ABOUT CHILLED WATER AND CONDENSOR WATER CIRCUIT
  44. 44. SCHEMATIC DIAGRAM FOR CHILLED WATER LINE
  45. 45. SCHEMATIC DIAGRAM FOR CONDENSOR WATER LINE
  46. 46. ABOUT VENTILATION….
  47. 47. VENTILATION SYSTEM APPLICATIONS OF VENTILATION SYSTEM  KITCHENS  TOILETS  CAR PARK AT BASEMENTS  FACTORIES  CHEMICAL INDUSTRIES  PHARMA INDUSTRIES
  48. 48. TYPES OF FANS USED FOR VENTILATION  CENTRIFUGAL FANS:- a)FORWARD CURVED b)BACKWARD CURVED  AXIAL FLOW FANS:- a) PROPELLER TYPE b) TUBE AXIAL TYPE c) VANE AXIAL TYPE
  49. 49. ENERGY SAVING IN HVAC INDUSTRY
  50. 50. ENERGY SAVING  GLOBAL AWARENESS TOWARDS ENERGY SAVINGS IS REFLECTED IN HVAC INDUSTRY.  ENERGY EFFICIENT EQUIPMENT ARE NEED OF THE INDUSRTY.
  51. 51. ENERGY SAVING EQUIPMENT  VAPOUR ABSORPTION MACHINES  VARIABLE REFRIGERANT VOLUME SYSTEM  HEAT RECOVERY WHEELS  VARIABLE FREQUENCY DRIVES  THERMAL STORAGE SYSTEM
  52. 52. HVAC IS COMMITTED TO : PROVIDE MAXIMUM CONFORT TO HUMAN BEING  TO SATISFY THE INDUSTRIAL NEEDS
  53. 53. THANK YOU

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