HVAC

1
HVAC

• MAJOR COMPONENTS OF HVAC
• CHILLERS
• DX- UNITS
• PUMPS
• COOLING TOWERS
• FANS

2
MAXIMUM POWER CONSUMPTION

• CHILLERS
• AIR COOLED 1.3KW/TR
• -WATER COOLED 0.65KW/TR
• DX- UNITS
• - AIR COOLED 1KW/TR
• - WATER COOLED 0.75KW/TR

3
MAXIMUM POWER CONSUMPTION

• 3. PUMPS
• CHILLED WATER PUMPS 0.08KW/TR
• CONDENSER WATER PUMPS- 0.07KW/TR

4
MAXIMUM POWER CONSUMPTION

• 4. COOLING TOWERS 0.075 KW/TR

5
MAXIMUM POWER CONSUMPTION

• 5.a. AHU FANS 0.2 KW/ TR
• 5.b. VENTILATION FANS 0.015KW/TRe

6
MAXIMUM POWER CONSUMPTION

• TOTAL FOR CHILLED WATER AIR CONDITIONING
• AIR COOLED CHILLED WATER SYSTEM 1.595KW/TR
• WATER COOLED CHILLED WATER SYSTEM 1.09 KW/TR

7
MAXIMUM POWER CONSUMPTION

• TOTAL FOR DX AIR CONDITIONING SYSTEM
• AIR COOLED DX - SYSTEM - 1.015KW/TR
• WATER COOLED DX - SYSTEM 0.84KW /TR

8
RESPONSIBILITY

• REDUCTION OF POWER CONSUMPTION AIR CONDITIONING
  SYSYTEM
• REDUCTION IN LOAD
• IMPROVEMENT IN SYSTEM EFF.

9
REDUCTION IN LOAD

• 1. REDUCTION IN EXTERNAL LOAD -
• - INSULATION OF WALLS ROOFS
• - MINIMISING WESTSIDE WINDOWS
• - HAVING ALCO PANELS
• - MINIMISING FRESH AIR (USE OF OZONE SYSTEM
  FOR TREATMENT)
• - ENERGY RECOVERY

10
REDUCTION IN LOAD

• 2. REDUCTION IN INTERNAL LOAD
• OPTIMISE THE ROOM SET TEMPERATURES
• SHUT DOWN COMPUTERS AFTER WORK
• OPTIMISE ROOM LIGHTING
• USE LOCALISED HOT AIR EXHAUSTS (WHEREVER
  POSSIBLE)
• OPTIMISE MOTOR RATINGS

11
IMPROVING SYSTEM EFFICIENCY

• - INSTALLATION OF VAVs
• - INSTALLATION OF VFDs
• - MAXIMISE ENERGY RECOVERY
• - PROPER INSULATION AND SEALING OF PIPES
• - PROPER INSULATION AND SEALING OF DUCTS
• - MINIMISE THE LENGTH OF DUCTS
• IF POSSIBLE PIPING (KEEP PLANT CLOSE TO USER)
• - AUTOMATE THE EXHAUST FANS
• KEEP POWER FACTOR HIGH NEAR LOAD
• USE NATURAL COOLING (AS MUCH AS POSSIBLE)

12
OPERATION MAINTENANCE

• PERSONALLY MONITOR DAILY CONSUMPTION EVERYDAY
• MAINTAIN CLEANLINESS
• MONITOR EFFECTIVENESS OF VFDs
• LOOK FOR MONOTONY AND DEVIATIONS
• HAVE MONTHLY AWARENESS PROGRAMS
• HAVE ROLLING TROPHY FOR LOWEST CONSUMER
  (DEPARTMENT/ SECTION)
• SET SMALL TARGETS FOR EACH INDIVIDUAL IN
  OPERATIONS TEAM AND AWARD THE WINNERS
• RECORD POWER CONSUMPTION OF EACH UTILITY AT LEAST
  ONCE A YEAR.

13
REMEMBER

• GRID POWER -
• EACH Kw SAVED RESULTS IN REDUCING 6.4 TONNES OF
  CO2 EMISSIONS/ YEAR
• 2. DIESEL GENERATORS -
• EACH Kw SAVED RESULTS IN REDUCING 7.2 TONNES OF
  CO2 EMISSIONS/ YEAR