HVAC System Recommendations - Yifan Guo

ACC Link
https://acc.autodesk.com/docs/files/projects/cbef7261-4ed5-4dad-99c1-e2a751c74519?folderUrn=urn%3Aadsk.wipprod%3Afs.folder%3Aco.4yUKOpcNTIS7t_VF0KZjTw&viewModel=detail&moduleId=folders
Link to Student
Guo, Yifan
Created
Jan 6, 2025 12:37 AM
Created by
Glenn Katz
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Space

  1. The elevation per floor is 12 feet. The structural beam I used for the previous design was W shape W 14 x 30 Beams, which gives the overhead tolerance to be 10’ 10’’ from the floor to the bottom of the beam. The space is enough to place ducts less than 26’’ to meet the standard ceiling height of 8 feet, which is plenty of room.
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  1. The spaces are fully enclosed and set to the appropriate space types except for some odd ones: the public space 1A was set to Public and Staff Lounge - Hospital/Healthcare. I am guessing because this is the more close one to the type but there are no more available type options which is more suitable for this space considering its designed purpose.
  2. There are 2 HVAC zones defined in the model for each floor: East and West. They are appropriate for the level of thermal control.
  3. The overall load report seems reasonable to me except for the public space 1A mentioned before.

Diffusers Modeling:

Level 0:

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Level 1:

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3D View:

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ACC Coord View:

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Design Challenges:

  1. The offsets of different objects are a little tricky. The ducts and air terminals should have different heights. How to adjust them to be under the structural beam and at an appropriate height should be carefully considered. While designing, I accidentally misplaced the height for one air terminal which caused a straight duct standing through the whole level 0.
  2. How to manage the supply duct and the return duct not to conflict with each other is also challenging and involves a lot of 3D thinking:
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Summary:

I think my overall design meets the project’s special design goals. However, some of the sizes of ducts should be re-considered based on the schedule:

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I should then carefully examine the duct system to avoid any disconnects as well.

To make the design more sustainable, some of the implementation will be Implementing smart systems that can monitor and control the building's HVAC needs, adjusting settings based on occupancy, weather, and time of day. I can also design windows and vents that can be opened and closed to control ventilation with outdoor air, reducing the need for mechanical ventilation.