Joshua Dimasaka
Joshua Dimasaka

Joshua Dimasaka

Journal Entry For
Module 4 - Conceptual Design - Building Context & Passive Design
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  • 4.3 CONCEPTUAL DESIGN MODELING
    • 4.3.A Evaluation Context
      • 4.3.A.1 Visualize Using Google Earth
      • Coordinates: 15°11'54.59"N, 120°32'2.37"E

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      • 4.3.A.2 Viewing Climate Data in Revit & Insight
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        Insight results are provided in 4.4.B.4.

    • 4.3.B Modeling Site Topography
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    • 4.3.C Conceptual Mass Modeling
    • Note: There are no adjacent large buildings on the area.

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      This shape is inspired by Banaue Rice Terraces, which was built over 2,000 years ago in the Philippines.

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  • 4.4 SIMULATION AND ANALYSIS
    • 4.4.A Quantifying Your Design
    • Gross Floor Area = 34,223 SF (satisfies the project requirement of 30,000 - 35,000 SF)

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    • 4.4.B Evaluating Passive Design Opportunities
      • 4.4.B.2 Visualizing Sun & Shadows
        • Summer Solstice
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        • Spring Equinox
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        • One-year Solar Study
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      • 4.4.B.3 Evaluating Solar Insolation & Photovoltaic Potential
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      • 4.4.B.4 Evaluating Predicted Building Performance Using Insight
        • Energy Model
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        • Insight
        • Note: Arch 2030 Benchmark results are not available outside US and Canada. Only ASHRAE is available for benchmark comparisons. Ref

          This is the baseline scenario.

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        • The Impact of Factors on Building Performance
        • The result below gives the ASHRAE 90.1-compliant design, aiming for <$3.10.

          Reduce to 50% window-wall ratio in walls, instead of 95%.
          Set plug load efficiency to 1.0 W/SF
          Set operating schedule to 12/6
          Set PV surface area to 75%
          Set 10-yr PV payback limit
          Use ASHRAE Package System for HVAC
          Choose PV with 18.6 % efficiency
          Set daylight and occupancy controls
          Use R60 Roof
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      • 4.4.B.5 Using Scenarios to Compare Conceptual Design Models in Insight
      • Refer to the previous bullet points which illustrated the comparison between Baseline and Selected Models.

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      • 4.4.B.6 Exploring the Impact of Building Orientation in Insight
      • As shown in the figure below, no significant changes would be observed if we vary the building orientation. Hence, this gives us flexibility to orient the building by following other site constraints such as roads or existing water/sewer system.

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