Revit MEP project portfolio
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BE - MECHANICAL
2012 - 2016
Designing & Detailing
REVIT MEP & HVAC SYSTEMS
Project & building information:
Building type : Office type.
Location : Bengaluru.
Building area : 3, 89,160 ft.
No. Of floors : GF + 11
Indoor design conditions : 77 F, 50% RH.
Air volume calculation type : VAV single duct system.
Peak total cooling load : 600 TR (diversity factor: 10%).
Cooling Air Flow Requirement : 2, 09,480CFM
Occupancies : 6336 people. Operation time : Day time working (5 days in
Heat load report:
The Effective Sensible Heat Factor (ESHF): 0.729 Apparatus Dew Point temperature (ADP): 50 F Total effective heat load: 600 TR
Solar gain glass. Solar & trans. gain walls & roof. Trans. gain except walls & roof. Infiltration and outside air. Room internal heat. Effective room sensible heat. Effective room latent heat.
ASHRAE -55(thermal comfort applications). ASHRAE -62.1 (fresh air requirement). ASHRAE -90.1(energy standards for high rise buildings).
Basic refrigeration and air conditioning by P N Anantanarayana (table- A10 ADP).
Duct layout design:
Method of duct design: Equal friction method.
Software used : Mc Quay Duct Sizer.
Duct system : VAV single duct system.
Parameters considered for sizing:
Volume flow rate of air.
Velocity of air.
System inspector & PD report:
Finding critical path.
Finding total pressure drop of system by revit PD report.
Selection of Supply and Exhaust FAN
1. Floor wise toilet exhaust fan : Centrifugal- inline direct-
2. Terrace exhaust fan : single inlet single width (SISW) fan.
3. Supply air fan : backward curved centrifugal fan.
LAU fan brochure, KRUGER catalogues for fans.
NBC part 8- lighting and ventilation. (No of air changes required for toilet-10 & office-6 ACH).
Selection of cooling coil is made based on following
Coil face velocity: < 500 fpm.
Material for COIL: COPPER( Cu )
FIN: ALLUMINIAM (Al)
NO of rows : 06
Chilled water temperature : 47F 59F
Mixed air temperature : 54F
Fouling factor : 0.00025
Selection of chiller plant is made based on following
Cooling capacity each: 275.
Cooling method: Water cooled.
Type: Flooded Screw chiller.
Flow: Counter flow.
Water temperature for Evaporator : Inlet : 59F
Selection of cooling tower is made based on following
Total cooling load: 550 TR
Capacity: 325 TR
Flow: counter flow.
Wet bulb temperature of air: 78F
Public health engineering: System: supply water system, (Over head tank distribution).
System: single pipe drainage system.
System: double pipe drainage system.
Slope maintained 1:100
NBC PART-9 PLUMBING SERVICES: SECTION 1-WATER SUPPLY, DRAINAGE & SANITERY. Table 09 office buildings. Table 23 fixture units for sanitary appliances. Table 25, 26 sizing of drainage pipes.
Fire suppression system design:
Fire fight piping layout
Sprinkler used: Dry - pendant hosted.
Pipe sizing for the system is done by referring NBC part-4 FIRE AND LIFE SAFETY.