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HVAC

HVAC stands for Heating, Ventilation, and Air Conditioning. It regulates the inside temperature and air quality of buildings. HVAC design considers the system operation principles and factors that determine equipment size and capacity. It also calculates the cooling and heating loads of areas, selects appropriate HVAC technologies, considers energy efficiency, and plans the equipment layout and access to achieve proper performance and maintenance.

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aashman dalal
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54 views2 pages

HVAC

HVAC stands for Heating, Ventilation, and Air Conditioning. It regulates the inside temperature and air quality of buildings. HVAC design considers the system operation principles and factors that determine equipment size and capacity. It also calculates the cooling and heating loads of areas, selects appropriate HVAC technologies, considers energy efficiency, and plans the equipment layout and access to achieve proper performance and maintenance.

Uploaded by

aashman dalal
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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HVAC SYSTEMS

HVAC stands for Heating, Ventilation, and Air Conditioning. This is the
building system that regulates the inside temperature of the building and,
in some systems, the air quality as well. The principles of HVAC design
include the basic theory of system operation and the factors that
determine the size and capacity of the equipment installed in the system.

- Cooling / heating load calculation of area to be air conditioned 


- select the right hvac technology for the application intended
• high side equipments (compressors / chillers) 
• low side equipments (air & water management)
 - hvac consumes almost 45% of total building energy hence energy
efficiency of hvac equipments play a significant role while system
selection & detailed designs - work out space planning of the
equipment/system shortlisted to achieve 
• adequate maintenance space 
• proper access to hvac equipment possible
• non-interfering sound based equipment performance (acoustic
control) hvac & architecture
-optimization of cooling loads (tonnes of refrigeration - tr) 
I. Overall building envelope 
• walls (brick / exposed concrete / finishes / hollow wall) 
• roof (quality / overdeck insulation) 
• partitions (wall / wood / sandwitched) 
• false ceilings (height / material) 
• micro-climate (green cover / passive cooling) 

Ii. Exposed glass thermal quality & orientation


• single glass 
• single glass with sun film 
• double glass unit 
• low e glass 
• glass façade orientation (west wards – worst)

- hvac technology & its impact on space planning


 i. Central hvac systems 
• central plant room space 
• open space for cooling towers / air cooled units 
• dedicated enclosed air handling unit rooms 
• service risers (masonry shafts) for water pipes and air ducts 
• beam bottom / ceiling void height ii. Unitary systems (split units /
ductable units) 
• indoor unit location 
• service trap doors in false ceiling 
• corded remote loation on wall 
• outdoor unit location 
• false ceiling heights 
• false ceiling designs (coffer ceiling / flat ceiling / step ceiling

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