Practice Exercise - Module 3

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Aigbekaen, Jovan
Journal Entry For
Module 3 - Project Goals Targets & Strategies
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Created
Jan 6, 2025 12:34 AM
Last Edited
Jan 6, 2025 12:34 AM
Created by
Glenn Katz

Goal 1: Enhance building energy efficiency and performance-Minimize energy usage

Creating a space that does not require intensive energy usage is critical to ensure that the building does not become a burden on the existing energy grid and the environment.

  • Measure:
    • Operational Energy Unit Intensity (EUI)
  • Targets:
    • Minimum:
      • 25kBtu/sf/yr
    • Target:
      • 17kBtu/sf/yr
  • Strategies:
    • strategic envelope material selection and layering to maximize insulation
    • incorporation of smart fenestration shading designs and device to reduce undesired thermal gains/losses which would require additional cooling/heating capacity
      • double skin facade
      • vertical fin louvres
    • implementing passive design strategies to create a hybrid HVAC system
      • use of natural ventilation with atrium spaces, roof vents, operable windows, etc.
      • use of thermal mass elements for gradual heat storage and dissipation
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Double skin facade

Goal 2: Incorporate onsite renewable generation sources to offset grid energy usage - Net Zero Energy

A key component of achieving a sustainable design is the incorporation of onsite renewable energy generation to offset grid energy usage, which in most jurisdictions is still largely produced using green house gas emitting fuel sources. By increasing the amount of energy offset from the grid, you can approach achieving an overall net-zero status for the building site

  • Measure:
    • Solar Potential
  • Targets:
    • Minimum:
      • offset at least 75% of annual energy use with onsite PV
    • Target:
      • offset 100% of annual energy usage with onsite PV
  • Strategies:
    • strategically positioned and angled roofs to align with the solar angle from which solar PV arrays can perform at their maximal electricity generation efficiency
    • maximize available footprint on roof that is not dedicated towards HVAC systems or other elements
    • minimize heating and cooling loads to reduce the overall annual building energy demand that would need to be offset by the solar PV arrays

Goal 3: Mitigating costs and embodied carbon footprint from materials and construction

The construction industry and the built environment at large are the single largest contributors to global annual GHG emissions. As such, it is important to target emissions reduction measures throughout the life cycle of a building from construction, to operation, to maintenance.

  • Measures:
    • kg/CO2 equiv-ft2
    • $/sqft of space
  • Targets:
  • Strategies:
    • Use EPIC as a resource for tracking embodied carbon
    • use of local, sustainably sourced, and eco-friendly materials for construction to reduce transportation and manufacturing emissions
      • mass timber
    • facilitating the use of efficient and sustainable fabrication techniques by creating modular components or spaces through regular forms and floor plans or prefabricated facade panels
    • rainwater collection and reuse systems
    • carbon sequestration and storage
      • carbon sequestration concrete
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Mass timber example in Brazil (McDonald’s Sao Paulo by Superlimao Studio): https://www.dezeen.com/2023/09/26/superlimao-mass-timber-mcdonalds-sao-paulo/#

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Mass timber example in Mexico City (El Jardin Anatole by Dellekamp Schleich): https://www.dezeen.com/2023/09/25/dellekamp-schleich-anatole-mass-timber-mexico-city/

Goal 4: Occupant Comfort and Cohesion with Natural Environment

  • Measures:
    • inclusion of greenspaces
    • external views
  • Targets:
    • Minimum:
      • 50% of spaces within 100m walking distance of dedicated greenspace
      • window-to-wall ratio (WWR): 20%
    • Target:
      • 90% of spaces within 100m walking distance of dedicated greenspace
      • WWR = 50%
  • Strategies:
    • incorporating green terraces and gardens throughout the architectural program
    • setting aside roof space for a green roof/cool roof
    • strategically placing dedicating viewing areas and vista points where a greater amount of the exterior envelope can utilize glazing materials. This uneven distribution of glazing elements will maintain a high WWR without compromising solar gain mitigation efforts on other facades