Watch unique presentation for HVAC Beginers. Aclaimed and recommneded by professionals.

1. WELCOME TO THE
WORLD
OF
HVAC
FROM
BUCC (HVAC)-MR. NEERAJ SHUKLA
L&T (ECC) LTD.

2. WHAT IS HVAC ?
 H- HEATING
 V- VENTILATION
 AC- AIR CONDITIONING

3. Few People think that HVAC is all
about Luxury , Waste of money
and
Valuable Energy.
BUT……………..!!

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. 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. 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. 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. 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. BASIC COMPONENTS OF
AIR CONDITIONING
 COMPRESSOR
 CONDENSER
 THROTTLING DEVICE
 EVAPORATOR

10. BASIC OPERATION CYCLE

11. ABOUT VARIOUS AC
SYSTEMS

12. VARIOUS AC SYSTEMS

13. VARIOUS AC SYSTEMS
 SPLIT UNITS
 WINDOW AC
 PACKAGE
UNITS

14. WINDOW AC

15. DUCTABLE SPLIT UNITS

16. PACKAGE TYPE UNITS

17. DX SYSTEM

18. CHILLED WATER SYSTEM

19. VARIOUS AC SYSTEMS
(CHILLED WATER AIR WASHER SYSTEM)

20. AIR FLOW PATTERN

21. SYSTEM SELECTION

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. 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. 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. TYPES OF CHILLERS
AND
COMPRESSORS

26. TYPES OF CHILLERS
 AIR COOLED TYPE
 WATER COOLED TYPE

27. TYPES OF COMPRESSORS
 RECIPROCATING TYPE
 ROTARY TYPE
 SCROLL TYPE
 SCREW TYPE
 CENTRIFUGAL TYPE

28. ENVIRONMENT-FRIENDLY
REFRIGERANTS
 R-134a
 R-123
 R-407C
 R- 410A
 R-22 (phase out on 2040)

29. ABOUT VARIOUS HVAC
EQUIPMENT

30. COMMONLY USED
EQUIPMENT
 AIR HANDLING
UNIT
 FAN COIL UNIT
 COOLING TOWER

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. 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. 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. 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. TYPES OF COOLING
TOWERS
 NATURAL DRAFT TYPE
 INDUCED DRAFT TYPE
 FORCED DRAFT TYPE

36. TYPES OF COMMONLY USED PUMPS
 MONOBLOCK TYPE
 VERTICAL SPLIT
CASE TYPE
 HORIZONTAL SPLIT
CASE TYPE
 IN-LINE TYPE

37. COMMOMNLY USED
MATERIALS FOR
INSULATION
 EXPANDED POLYSTYRENE
(THERMACOLE)
 EXPANDED POLYETHELENE
 POLYURETHANE FOAM SECTIONS
 FIBRE GLASS WOOL
 NITRILE RUBBER
 PHENOTHERM
 ROCK WOOL

38. ABOUT DUCTING AND
ACCESSORIES

39. TYPES OF DUCTING
A)FACTORY FABRICATED DUCTS
B)SITE FABRICATED DUCTS

40. FACTORY FABRICATED DUCTS

41. DUCTING ACCESSORIES

42. TYPES OF GRILLS AND
DIFFUSERS
 CONTINUOUS GRILLS
 LINEAR GRILLS
(ADJUSTABLE TYPE)
 DIFFUSERS

43. ABOUT CHILLED WATER
AND
CONDENSOR WATER
CIRCUIT

44. SCHEMATIC DIAGRAM FOR CHILLED
WATER LINE

45. SCHEMATIC DIAGRAM FOR CONDENSOR
WATER LINE

46. ABOUT
VENTILATION….

47. VENTILATION SYSTEM
APPLICATIONS OF VENTILATION SYSTEM
 KITCHENS
 TOILETS
 CAR PARK AT BASEMENTS
 FACTORIES
 CHEMICAL INDUSTRIES
 PHARMA INDUSTRIES

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. ENERGY SAVING
IN
HVAC INDUSTRY

50. ENERGY SAVING
 GLOBAL AWARENESS TOWARDS ENERGY
SAVINGS IS REFLECTED IN HVAC INDUSTRY.
 ENERGY EFFICIENT EQUIPMENT ARE NEED OF
THE INDUSRTY.

51. ENERGY SAVING EQUIPMENT
 VAPOUR ABSORPTION
MACHINES
 VARIABLE REFRIGERANT
VOLUME SYSTEM
 HEAT RECOVERY WHEELS
 VARIABLE FREQUENCY
DRIVES
 THERMAL STORAGE SYSTEM

52. HVAC IS COMMITTED TO :
PROVIDE MAXIMUM CONFORT TO HUMAN BEING
 TO SATISFY THE INDUSTRIAL NEEDS

53. THANK YOU