Residential Models

• 1: Envelope
• 2: Geometry
• 3: HVAC
• 4: Schedules
• 5: Space Functions

1 - Envelope

Building envelope constructions and performance are sourced from the original DEER models, and are translated from DOE2 to CSE format. The MASControl database was used to generate inputs that vary envelope performance based on vintage and climate zones, and were applied accordingly to each prototype model.

2 - Geometry

Building geometries for the residential DEER prototypes are sourced from the original DEER models created in DOE2, and are translated from DOE2 to CSE format.

Modifications from DEER Geometry

The building geometry in the original DEER models varied the floor, wall, and window area by climate zone due to the extensive analysis that was conducted to generate the DEER models. For simplification, the floor, wall, and window area that was most common among the climate zones is used for all climate zones in the prototype models, and no shading objects are included.

Software to render CSE geometry in a visual format is not currently available.

3 - HVAC

Residental HVAC

All residential models have ducted central air conditioning and gas-fired furnace heating. The MASControl database was used togenerate inputs that vary HVAC performance parameters (i.e., fan power, heating and cooling efficiency) based on vintage and climate zones, and were applied accordingly to each prototype model. The HVAC systems operate all hours of the year, cycling on/off as needed to meet heating and cooling setpoints.

4 - Schedules

Groups of schedules for occupancy, lighting, and plug loads were varied to represent short, average, and long schedules. The original DEER model schedules serve as the average schedules. The short and long schedules were created by shortening and lengthening the average internal load schedules by approximately three hours each day.The HVAC system and zone temperature setpoints are constant. Details on the operating schedule variations for each building are listed in the model specification reports.

5 - Space Functions

Residential internal loads are sourced from the original DEER models, but translated from DOE2 to CSE format. Internal load assumptions are listed in the model specification reports.

Internal Loads

Design internal loads include:

• Lighting power (Watts)
• Equipment power (receptacles, cooking, refrigeration, dish washing, clothes washing and drying) (Watts)
• Occupancy (people per zone)

Domestic Hot Water

Domestic hot water (DHW) assumptions include:

• DHW draw profiles for sinks, baths, showers, dish washing, and clothes washing