SEFAIRA ENERGY MODELING – SRT 757 Assignment 2 (2017) Objective & Challenge: To discover the influences of a building’s construction materials, design layout, building services and renewable energy attributes towards achieving a NET ZERO ENERGY building. A typical two storey office building design of approximately 1850m2 is selected for investigation. This is located in Geelong Victoria on the Deakin University car park of the Waterfront Campus. The climatic data used for this analysis is Melbourne, Victoria. The idea is to consider the following evaluation criteria towards obtaining a NET ZERO ENERGY building: • Obtaining an effective insulation and building mass for the structure. • Selecting the proper Window / Glazing (WWR – window to wall ratios) as well as effective glass for this building. • Understanding the value of shading to the window systems. • Learning about ‘free-running’ building simulation & natural ventilation. • Selecting effective mechanical equipment & renewable energy systems. • Observation on the synergistic effects of the above measures taken to produce a NET ZERO ENERGY building. It is expected that you will consider, refine and evaluate your results according to a range (5+/-2) of the above provided criteria. In other words, these are several of the evaluation criteria (if not all) that are possible to intelligently simulate and consider to provide evidence (support) of your solution. You are allowed to use and should consider the following alterations in your design: • Window orientation, location and size (WWR) • Glazing (window) transmittance of light & solar (SHGC of glass system) & U-value of window. • Shading devices on the exterior of the building; (vertical and/or horizontal) • Building envelop structure: mass / insulation value – for roof, walls and floor. • Reduction of building load Almost anything is possible as long as the floor plate (area) is not changed. Note: Window sizes can be altered, changed, created and omitted. You are to document several 5+/-2 alterations, starting with the BASECASE model result of energy and provide a progression of your study as well as a brief explanation (provided in the template) highlighting the positives and negatives aspects of the energy results and what prompted the changes made. Note: It is NOT typical than all steps and their changes are progressively better in your study. In other words, you may make an alteration that regresses in energy performance. HOWEVER – you should make sure that you alter your presentation to show a staged improvement -> from worse to better! Below is the TEMPLATE – format anticipated for your use in this assignment. Lighting Assignment 1 SRT 757 - Template Please reconstruct this template for an A3 Landscaped page Office Building: Alteration/Change Building Image(s) & Brief Description Description of Building Feature (Alteration) Simulated Result w Evaluation: First Floor (SEFAIRA Plug-in) Simulated Results/ Evaluation Simulated Results/ Evaluation No Shading: WWR – East & West: 24% WWR – North: 58% WWR – Roof: 90m2 Skylight, X% of roof area Establish the changes made graphically – and describe here. Base case Condition • Wall: U-value; poorly insulated • Window/Glass: U-value: SHGC: • Roof Opaque U-value: • Roof Glass/Window: U-value: SHGC: • Solar Gains are high due to glazing –SHGC & U-value. • Wall heat loss requires improvement • Infiltration / building sealing needs improvement • Note this preliminary analysis indicates an equipment dominated building. • Note there is a provision for up to 3 images, (simulation results, explanation) for each case – change – to be shown and supported. • These three ‘Simulation Results’ columns Can be used to explain / show results of the simulation strengths or weaknesses. • Image of Next Case • Next Case Described here • Image of Result • Image of Result • Image of Result NOTE: this is a fictitious EXAMPLE ONLY ! REMOVE from YOUR PRESENTATION • South facing clerestory – area 60m2 • North façade – lightshelf (1.2m, 0.3int., 0.9m ext) • WWR: N: x% E: y% W: w% S: z% • Insulation U-value: roof= 0.25 walls: 0.35 • Etc. • Example of an alteration • Glazing: - U-value: - SHGC: - τv/total: • Wall Insulation: U-value: W/m2C or R-value • Natural Vent.: % open area: Window type • Mechanical System: • Several significant reductions in the building fabric are achieved with the Equipment & People now resulting in the largest gains to the building. • X% reduction from BASECASE • Equipment Sizing: -Cooling: 124 W/m2 - Heating: 136 W/m2 • Annual Energy Use: EUI = kWh/m2/yr Total = kWh/year • Energy Cost per Annum: • • Other information to help describe the improvement • Note: try to explain the components and changes made to the building in terms of: - Fabric Envelope - Equipment - Running Operation (mech. or Freerunning) - Renewable Energy Strategies. - Etc. • Note: Up to 5+/-2 alterations can be shown in a progressive manner of improvement to indicate your development towards your final result. The Evaluation Criteria of this assignment is based upon an indication of your knowledge and rationale to energy design: • Understanding the BASECASE and present weaknesses in the energy design – according to Standards. • An intelligent progression of a staged approach towards improving the BASECASE towards an effective energy efficient design: - Reasonable alterations identified, made, and supported by correct additions, omissions and improvements as well as computational results • Clear and neat graphics – note that many of the results off the computer screen need to be enlarged – font size - to be legible and reconstructed ! Rubrics: Criteria N P C D HD Understanding of BASECASE energy design (standards)and problems to be addressed 25% Criteria insufficiently addressed Some indication of energy standards and energy criteria addressed A reminder of the standards and comments made on where the building requires improvement. Clear indication that the Standards and where design improvements are required. Exceptional understanding and development indicated based upon the data and results. A Progression of improved lighting design 50% Criteria insufficiently addressed 5+/-2 cases provided with partial information: • Some problems identified • Some problems addressed • reasonable design salient information missing indicating a poor understanding of real energy improvements 5+/-2 cases provided with reasonable information: • problems identified • problems addressed • reasonable design some salient information still missing indicating an solid understanding of energy performance improvement 5+/-2 cases provided with good information: • problems well identified • problems well addressed • good design solutions most salient information on energy problems provided. Good staged progression of energy improvements. 5+/-2 cases provided with exceptional information: • problems well identified • problems well addressed • good design solutions salient information on improvements, innovative approach, excellent format of presentation Clarity – succinct bulletpoint information and an understandable comprehensive Presentation 25% Criteria insufficiently addressed • template not fully followed • non-legible in areas • clumsy in clarity & graphics • somewhat confusing to follow – not labelled • template somewhat followed • non-legible in areas • somewhat clumsy in clarity • somewhat confusing to follow • template clearly followed • legible in all areas & graphics • clearly labelled • not confusing to follow Exceptional presentation and format Well labelled and bulletpoint clarity Overall Comments: There will be a few sentences made regarding specific items that were not addressed – or those that were well done !