Published on March 12, 2014
Sefaira Confidential Copyright Sefaira 2014 Sefaira for SketchUp Tutorial
Sefaira Confidential Copyright Sefaira 2014 Start by creating a flat surface 2 Set location to New York, and space use to Office After you create a floor, you see request to continue making a building
Sefaira Confidential Copyright Sefaira 2014 Let’s make a small box building 3 Square footage based on floor area Energy flow diagram showing contribution of design elements to heating or cooling. Explained on next slide Energy use split between heating, cooling, lighting and plug Change units between Imperial & Metric
Sefaira Confidential Copyright Sefaira 2014 Start by creating a flat surface 4 Height on heating column indicates # of heating hours Meanwhile, heat gains through wall conduction have an adverse impact on cooling In this case, losses through wall conduction are exacerbating heating requirements in the building Width of flow connecting design element to heating/cooling column shows how much impact design element has heating/cooling. Wider the flow, more the impact Color of flow connecting design element to heating/cooling column shows what kind of impact design element has on heating. Green is useful impact, red is adverse impact If you are wondering how we interpret building entities, continue reading…
Sefaira Confidential Copyright Sefaira 2014 Interpreting Building Entities 5 Click entity palette show entity types buttom to see how entities are interpreted Interpretation is shown overlaid on the model itself If we have misinterpreted an entity, you can click the radio button to reassign entities
Sefaira Confidential Copyright Sefaira 2014 Now, let’s add glazing on the south facade 6 Green axis points to true north. Spatial daylight autonomy line appears. sDA is the % of floor area that can be daylight for half the occupied hours (from 8a – 6p) Contribution of solar gain through glazing appears. It shows that solar gain through south façade during heating hours reduces heating energy use History of design evolution shows that adding glazing to the south façade reduced heating energy use. The chart below explains why. To improve daylighting, explore receding your windows and building orientation, or shading devices!
Sefaira Confidential Copyright Sefaira 2014 Now, let’s try to improve our design. First we will reduce the energy use 7 Since wall conduction was driving heat loss, you can click on the design element, and increase of reduce insulation As a result, heating energy use reduces drastically, and wall conduction is no longer driving energy use
Sefaira Confidential Copyright Sefaira 2014 How else can we adjust properties? 8 You can click the properties tab, and have access to detailed properties for all design elements
Sefaira Confidential Copyright Sefaira 2014 Interested in learning more? Reach out to us: email@example.com 9
Sefaira Confidential Copyright Sefaira 2014 Confidential Copyright 2014 Sefaira Ltd. About Sefaira Sefaira was founded in 2009 to help the building industry create more energy efficient buildings. Sefaira’s offers the industry’s only cloud platform capable of analyzing new building designs in real-time. This allows design professionals analyze and compare energy efficiency strategies for new build or retrofit projects, so that they can select the strategies most applicable to their projects. This way, Sefaira helps users maximizing capital efficiency, minimizing energy consumption and creating high performing sustainable building designs at low cost. From Sefaira's offices in London and New York our team of 40 dedicated employees support more than 200 clients across the world. www.sefaira.com Sefaira Ltd. 22 Soho Square London, W1D 4NS UK Sefaira Inc. 215 Park Avenue South, 6th Floor New York, NY 10003 USA
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