HVAC System

H.V.A.C. SYSTEM
CASE STUDY OF THE GUJARAT CANCER HOSPITAL &
RESEARCH INSTITUTE, SIDHPUR.
PREPARED BY:- SMIT PANCHAL.

H.V.A.C. SYSTEM
• WHAT IS H.V.A.C…?
• H. - HEATING
• V. - VENTILATION
• A.C. - AIR
CONDITIONING

H.V.A.C. SYSTEM
• HVAC SYSTEMS CONTROL THE ENVIRONMENT
FOR PEOPLE AND EQUIPMENT IN OUR FACILITIES.
• HVAC SYSTEMS AND CHILLERS ARE ALSO
SIGNIFICANT ENERGY CONSUMERS IN MANY
MANUFACTURING FACILITIES.
INTRODUCTION…

H.V.A.C. SYSTEM
• THE PURPOSE OF A HEATING, VENTILATING AND AIR
CONDITIONING(HVAC) SYSTEM IS TO PROVIDE AND
MAINTAIN A COMFORTABLE AND SAFE ENVIRONMENT
WITHIN A BUILDING FOR THE OCCUPANTS OR FOR THE
PROCESS BEING CONDUCTED.
• MANY HVAC SYSTEMS WERE NOT DESIGNED WITH
ENERGY EFFICIENCY AS ONE OF THE DESIGN FACTORS.
FUNCTION…

H.V.A.C. SYSTEM
• CONTROL OF AIR TEMPERATURE.
• CONTROL OF MOISTURE CONTENTIN THE AIR.
• PROPER AIR MOVEMENT
• TO HOLD THE AIR CONTAMINATION WITHIN
ACCEPTABLE LIMITS.
CONT,…

H.V.A.C. SYSTEM
• SHOPPING MALLS
• AUDITORIUMS AND THEATRES
• HOSPITALS
• HOTELS AND RESTAURANTS
• OFFICES
• COMMERCIAL COMPLEX
• LUXURY APPARTMENTS
• INFOTECH PARKS
• PHARMA INDUSTRY
• TELECOM INDUSTRY……. AND MANY MORE,…
VARIOUS APPLICATIONS OF AIR CONDITIONING…

H.V.A.C. SYSTEM
• ALSO CALLED REFRIGERATION TON(RT), IS A UNIT OF
POWER USED TO DESCRIBE THE HEAT EXTRACTION
CAPACITY OF REFRIGERATION AND AIR CONDITIONING
EQUIPMENT.
• 1 TR IS AMOUNT OF HEAT TOBE EXTRACTED FROM THE
ATMOSPHERE FOR THE MELTING ONE METRIC TON OF
ICE IN 24 HOURS.
• ONE TON OF REFRIGERATION (TR) EQUALS TO 12000
BTU/HR OR 3025 KCAL/HR.
WHAT IS TR(TON OF REFRIGERATION)…?

H.V.A.C. SYSTEM
• COMPRESSOR
• CONDENSER
• THROTTLING DEVICE
• EVAPORATOR
BASIC COMPONENTS OF AIR CONDITIONING…

H.V.A.C. SYSTEM
VARIOUS AC SYSTEM

H.V.A.C. SYSTEM
• AIR COOLED TYPE
• WATER COOLED TYPE
TYPES OF CHILLERS…

H.V.A.C. SYSTEM
• RECIPROCATING TYPE
• ROTARY TYPE
• SCROLL TYPE
• SCREW TYPE
• CENTRIFUGAL TYPE
TYPES OF COMPRESSORS…

HEATING, VENTILATING AND AIR-
CONDITIONING (HVAC) SYSTEMS.
THE PURPOSE OF HVAC DESIGN
o HIGH INDOOR AIR QUALITY AND
o ENERGY EFFICIENCY
o CONTROL OF AIR TEMPERATURE
o CONTROL OFMOISTURE CONTENTIN AIR
o PROPER AIR MOVEMENT

BASIC COMPONENTS OF AIR CONDITIONING
o PRIMARY PUMP – TO PRESSURIZE WATER
o SECONDARY PUMP – TO SUCTION WATER
o PRESSURIZATION UNIT (TO ADD WATER)
o EXPANSION TANK (TO MAINTAIN WATER LEVEL)
o CHILLER
o AIR HANDLING UNIT
ALL DATA IS AS PER CASESTUDY IT DOESN’T INCLUDE ALL TYPES OF HVAC SYSTEM DETAILS OR LAY

ABBREVIATIONS
o CFM – CUBIC FEET PER METER (TO DETERMINE THE AMOUNT OF AIR
o TR – TON OF REFRIGERATION
o AHU – AIR HANDLING UNIT
AIR DIFFUSER
o AIR DISTRIBUTION OUTLET
o LOCATED IN THE CEILING
GRILLES (RETURN GRILL)
o AN AIR RETURN IS A VENT GRILLE
o LOCATED IN THE CEILING
o PURPOSE TO EXTRACT AIR FROM A ROOM AND RECYCLE IT THROUGH

CHILLER CHILLER
EXPANSION TANK
(TO MAINTAIN WATER LEVEL)
PRESSUIZATION UNIT
(TO ADD WATER)
PRIMARY PUMP
PRESSURIZE WATER
SECONDARY PUMP
SUCTION WATER

VOLTAS CHILLER
o TYPE: SCREW CHILLER
o CAPACITY: 100 TR
o MODEL: R134A
AIR HANDLING UNIT
o INLET DUCT
o OUTLET DUCT

ALL DATA IS AS PER CASESTUDY IT DOESN’T INCLUDE ALL TYPES OF HVAC SYSTEM DETAILS OR LAYO
DETAILED PLAN OF AIR CONDITION
SHOWING:
o AHU
o RETURN AIR DUCT
o DUCT
o DIFFUSER

ALL DATA IS AS PER CASESTUDY IT DOESN’T INCLUDE ALL TYPES OF HVAC SYSTEM DETAILS OR LAYO

AIR HANDLING UNIT (AHU)
ROOM
WITH
DEFINED
REQUIREMENTS
SUPPLY
AIR
OUTLET
AIR

HVAC System

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