Course project presentation

1
Course project presentation

• Thursday in class
• Starts earlier 1220 p.m.
• Send me the presentation files till 1100 a.m.
• 5 Minutes strictly!

2
Announcement

• Field trip
• When Today 320 PM
• Where Beck trailer (trailer is located on
  University Ave.,  just west of PHR,  north of
  GEA).  
• Who
• Brian Wittmayer   UT Project Manager
  (Office of Facilities Planning and Construction
  Services,  UT Systems)Matt Pickens   Project
  Manager,  Beck (Construction Manager)Bernard
  Bhatti   Associate Director,  Engineering
  Services,  (Project Management and Construction
  Services,  UT-Austin)Missy Woolsey   Engineer, 
  HMG Associates (MEP Engineers for project)  

3
Objectives

• Compare Residential and Commercial Systems
• - Trends in residential HVAC
• Review

4
Computer software for load calculation

• http//www.xpedio.carrier.com/idc/groups/public/do
  cuments/marketing/hap_ehelp_009.pdf
• http//www.doe2.com/equest/
• http//tc47.ashraetcs.org/pdf/Presentations/Liesen
  _Chicago.pdf

5
Residential vs. Commercial systems

• Course focus was on HVAC equipment that is used
  in both residential and commercial systems
• Emphasize on the application in commercial
  systems

6
Commercial HVAC Systems
Multi zone
Single zone
All Hydroinic that relay on infiltration
VAV
CAV
VAV
CAV
With and without humidity control
With and without reheaters
Dual duct
Dual duct
With reheaters
DOAS with fan coils
DOAS with fan coils or radiant ceilings
This is not the complete list !
7
Typical Components in Commercial systems

• Constant operation
• Outdoor air supply
• Two fans (supply and return)
• Multizone system
• Control
• ..

8
Residential Systems

• Buildings are responsible for 40 of US energy
  use
• 1/3 houses
• There will be a push for conservation in this
  sector
• Zero Energy homes
• http//www.eere.energy.gov/buildings/building_amer
  ica/pdfs/29915_zeb_path.pdf
• http//www.toolbase.org/ToolbaseResources/level3.a
  spx?BucketID2CategoryID58

9
Residential System
10
Residential system

• Technology is feasible and cost-effective
• Several barriers to widespread use
• Up-front costs are still higher
• Insufficient data on resale costs
• Lack of experienced designers