Lecture Announcement

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Lecture Announcement

• Developing Concrete with a Structural and Thermal
  Insulation
• Performance and Homogenous and Stratified
  Approach
• Dr. Mauricio Lopez

Monday, October 31 330-430pm ECJ 3.406
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Objectives for Todays class

• Discuss Incoming Test
• Discuss Project 1 (eQUEST)
• Learn about weather data
• Discuss Internal Building Loads
• Thermostat Setpoints
• Learn about HVAC Systems

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eQUEST (DOE2)US Department of Energy
California utility customers

• eQUEST - interface for the DOE-2 solver
• DOE-2 - one of the most widely used ES program
• - recognized as the industry standard
• eQUEST very user friendly interface
• Good for life-cycle cost and parametric analyses
• Not very large capabilities for modeling of
  different HVAC systems
• Many simplified models
• Certain limitations related to research
  application
• - no capabilities for detailed modeling

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Weather File

• Typical Meteorological Year
• TMY, TMY2, TMY3
• http//rredc.nrel.gov/solar/old_data/nsrdb/1991-20
  05/tmy3/

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Internal Loads
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Energy consumption kWh/year
Units are in kW/h per year
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eQUEST HVAC Models

• Predefined configuration (no change)
• Divided according to the cooling and heating
  sources
• Details in e quest help file
• For example
• DX CoilsNo Heating
• Packaged Single Zone DX (no heating)
• Packaged single zone air conditioner with no
  heating capacity, typically with ductwork.
• Split System Single Zone DX (no heating)
• Central single zone air conditioner with no
  heating, typically with ductwork. System has
  indoor fan and cooling coil and remote
  compressor/condensing unit.
• Packaged Terminal AC (no heating)
• Packaged terminal air conditioning unit with no
  heating and no ductwork. Unit may be window or
  through-wall mounted.
• Packaged VAV (no heating)
• DX CoilsFurnace
• Packaged direct expansion cooling system with no
  heating capacity. System includes a variable
  volume, single duct fan/distribution system
  serving multiple zones each with it's own
  thermostatic control.
• Packaged Single Zone DX with Furnace
• Central packaged single zone air conditioner with
  combustion furnace, typically with ductwork.
• Split System Single Zone DX with Furnace
• Central single zone air conditioner with
  combustion furnace, typically with ductwork.
  System has indoor fan and cooling coil and remote
  compressor/condensing unit.
• Packaged Multizone with Furnace

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Building HVAC Systems (Primary and Secondary
Building Systems)
AHU Air Handling Unit
Distribution systems
Fresh air For ventilation
AHU
Primary systems
Air transport
Electricity
Secondary systems
Cooling (chiller)
Heating (boilers)
Building envelope
HVAC systems affect the energy efficiency of the
building as much as the building envelope
Gas
(or Gas)
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Integration of HVAC and building physics models
Load System Plant model
Building
Heating/Cooling System
Plant
Qbuiolding
Q including Ventilation
and Dehumidification
Integrated models