F03 48572 Zero Energy House

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F0348572Zero Energy House

• Lecture 4 The Susquehanna House

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Goals

• improve flexibility, affordability and quality
• improve energy performance and resource
  utilization and
• improve construction process within the existing
  framework

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Systems Engineering

• A strong emphasis on
• the definition of the problem,
• the generation and analysis of alternatives and
• the integration of the individual system
  solutions to create the overall system

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S. Oakland House

• Infill Row House, 1979
• Standard Platform Frame Super Insulation
• Air-based Solar Collector/ Rock Storage
• Night Time Window Insulation

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Sheffield Street Solar Demonstration Project

• Three Infill Row House Buildings, 1981 in
  Manchester Hist. District
• 2 x 6 Platform Frame Super Insulation, Air
  Sealing
• Flat Plate Solar Collector for Domestic Water
  Heating/ Hi- Eff Furnace
• Direct Gain Space (Porch)

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Susquehanna Objectives

• improved unit design
• flexible and adaptable technologies (HVAC,
  plumbing, wiring and interior finish)
• rationalized construction process

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Interior Unit Configuration
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Plan Permutations
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Pattern Books
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Exterior Configuration
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Structure/ Enclosure

• Precast concrete foundation panels
• SIP walls, R-26
• Clear-span, open-web wood joists
• Attic trusses
• Cotton batt insulation
• Vinyl-clad steel siding
• Pella lowE, argon filled windows

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HVAC
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Plumbing
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Power/ Voice/ Data
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Interior Systems
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Improved Construction Process

• factory prefabrication field assembly
• wall panels, floor panels, interior finish
  systems and architectural "add-ons".
• elimination of "be-backs
• dis-entangled systems allow trades to complete
  each task w/o interference
• construction waste management

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Lessons Learned

• Substantial design modifications were not
  attempted w/ this house but...
• key components are needed to improve spatial
  flexibility
• Demountable partitions
• Movable storage elements.

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Clear Successes Supporting Design Flexibility

• the panelized foundation/ above grade wall
  systems,
• the clear-span open web floor joists,
• the floor plenums for HVAC distribution and
• the manifold plumbing system.

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Potential Successes to Support Design Flexibility

• Raceway Power/ Voice/ Data but.
• improvements need to be made
• in the interface to the branch circuit feeds
• in the ability to go around doors/ windows
• in the need to incorporate switches and
• in the number and complexity of pieces in the
  system.

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Problematic Components and/ or Processes

• the sealing details for the plenum
• the manufacturing tolerances for the foam
  insulated wall panels
• the complexity of the finish carpentry
• the vinyl coated steel siding installation
  process and details

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Validate Consortium Assumptions w/ Future RD

• Improved affordability
• reduced construction time
• can be finished in stages by the homeowner.
• builder can develop shell in volume and rapidly,
  economically respond to individual preferences

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Validate Consortium Assumptions w/ Future RD

• Improved energy performance
• high performance components and systems
  integration
• Improved design and construction techniques

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Validate Consortium Assumptions w/ Future RD

• Improved resource utilization
• Minimize waste through
• improved unit design based on modular principles,
  
• control of the manufacturing process and
• construction site waste management.

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