Module 9 - HVAC

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🏠Vargas, Alonso
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.ebbVg4JkS4aDbB73eyWeqQ&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.ebbVg4JkS4aDbB73eyWeqQ&entityId=urn%3Aadsk.wipprod%3Adm.lineage%3AJqCyiR-pTdGSIpfl0jd-lg&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/c9196425-4334-4eb4-b8d5-5683156595fd/models

HVAC Alonso

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Project Information

  • Location: Sao Paulo, Brasil
  • Climate: Hot and humid
  • Solar exposure: Intensive

Overall HVAC Strategy

Cooling Problem

One overall zone (small scope) + window problem

  • Heating Information
    • Max: 32.22ºC = 89ºF
    • Min: 21.11ºC = 70ºF
    • Delta Heating = 19ºF
  • Cooling Information
    • Max: 23.33ºC = 74ºF
    • Min: 12.22ºC = 54ºF
    • Delta Cooling = 20ºF

Maximum Overall Quantities

Ventilating Loads

L0 - Visitors Café - 693 CFM

Heating Loads

L0 - Kids Interactive Zone - 4,667 btu/hr

Cooling Loads

L1 - Administrative Kitchen - 60,212 btu/hr

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Critical - By Level

Critical Cooling Load (btu/hr)
Critical Heating Load (btu/hr)
Critical Outdoor Airflow (CFM)
Level 0
57,296
4,667
693
Level 1
60,212
4,508
250
Level 2
56,336
4,599
351
Level 3
20,798
222
351
Level 4
56,336
4,727
351
Level 5
22,351
15,682
351

Btu/hr to CFM

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Critical - Cooling - Duct Section

Critical Cooling Load (btu/hr)
Critical Cooling Load (CFM)
Rounding Up
Required Cross - Section
Selection
Level 0
57,296
2,652
3,000
3 SF
18x24
Level 1
60,212
2,787
3,000
3 SF
18x24
Level 2
56,336
2,608
3,000
3 SF
18x24
Level 3
20,798
962
1.000
1 SF
12x12
Level 4
56,336
2,608
3,000
3 SF
18x24
Level 5
22,351
1,304
2,000
2 SF
12x24

Duct Optimization Level 3 from 18x24 to 12x12

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AHU - Equipement Selection

Critical Cooling Load (CFM) - Rounding Up
Level 0
3,000
Level 1
3,000
Level 2
3,000
Level 3
1.000
Level 4
3,000
Level 5
2,000
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Challenges

  • Zones
    • From optimizing from zones, to optimizing from levels.
  • Optimizing for small scope
  • Loose symetry due to mechanical room
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  • Clashes with Structural
    • Limiting floor to floor free height > Not optimal for museams
      • image
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      Feedback Daniel - Feb 28th

    • INCREASE FLOOR TO FLOOR
    • Check height difference between diffuser and duct.
    • SWITCH W TO H in ducts
    • Check structural connection of beams and footings