HVAC System

Scored
Your Name
Agi, Yasemin
Journal Entry For
Module 9 - HVAC Systems
ACC Folder Link
https://acc.autodesk.com/docs/files/projects/cbef7261-4ed5-4dad-99c1-e2a751c74519?folderUrn=urn%3Aadsk.wipprod%3Afs.folder%3Aco.XUa3LBGqRY2MJRLR-wO_Lw&viewModel=detail&moduleId=folders
ACC Revit File Link
https://acc.autodesk.com/docs/files/projects/cbef7261-4ed5-4dad-99c1-e2a751c74519?folderUrn=urn%3Aadsk.wipprod%3Afs.folder%3Aco.XUa3LBGqRY2MJRLR-wO_Lw&entityId=urn%3Aadsk.wipprod%3Adm.lineage%3Av1feLJh-QUyAs7uz7X4Klw&viewModel=detail&moduleId=folders
Created
Jan 6, 2025 12:34 AM
Last Edited
Jan 6, 2025 12:34 AM
Created by
Glenn Katz
ACC Coordination View Link
https://acc.autodesk.com/model/viewer/projects/cbef7261-4ed5-4dad-99c1-e2a751c74519/model-set/92c667a3-ccee-4c5f-9e3a-d102a1e2710a/models

HVAC Design Strategy

  • decentralized system with air handlers in the mechanical room of each floor
    • less duct work needed to connect to a rooftop AHU
    • smaller ducts connecting to air handler
    • different floors in my design have different uses and different operating schedules, so the HVAC system on some floors can be turned off while others are on
    • grilles on the exterior wall of the mechanical room let in outside air
  • VAV units for control over each thermal zone
  • air-based system for heating and cooling
    • my model has 15’ floor-to-floor dimensions, and the largest beams from the structural model were 8.5”x15.125”
    • To give extra space for the structural system, I placed the air diffusers at 12’ and centered the ducts around 13’ elevation
image
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Challenges

  • running ducts around the central atrium
  • some spaces have unexpectedly high calculated air flows, so I need to investigate further if that much is actually necessary or if there is a mistake in my analysis
  • the need for so much air flow to certain zones of the building also created some difficulties with duct sizing
  • I noticed I was losing a lot of heat to my roof, so I doubled the insulation layer