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Final project oral presentation

Final project oral presentation. PowerPoint Upload the file before the class Approximately 6-7 slides (a minute per slide) Problem introduction Model development - specific problem Results (preliminary) Results (preliminary) Discussion Summary. Presenter list. Thursday in class:

jamal-bowman
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Final project oral presentation

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  1. Final project oral presentation • PowerPoint • Upload the file before the class • Approximately 6-7 slides (a minute per slide) • Problem introduction • Model development - specific problem • Results (preliminary) • Results (preliminary) • Discussion • Summary

  2. Presenter list Thursday in class: - Nathan & Caleb - Fan & Christina - Kaylyn & Brandon - Zaid & Derek - Evan & Alex - Eugene & Almendra Thursday afternoon - Mina - Greg - Jacob - Wesley - Taylor - Joel - Sami - Munachiso - Sara

  3. Lecture Objectives: • Discuss airflow modeling in energy simulation tools • LEED and energy simulation • Course summary and Course evaluation

  4. Requirement for modeling of mass flow in ES programs m m

  5. Combined 1) Air flow and 2) Energy flow modeling Example: Night Cooling/Hybrid Ventilation:The IONICA Office Building, Cambridge, UK

  6. Night Cooling/Hybrid Ventilation:The IONICA Office Building, Cambridge, UK

  7. Night Cooling/Hybrid Ventilation:The IONICA Office Building, Cambridge, UK

  8. Energy and Airflow simulation domain Coupling surfaces

  9. Energy Simulation Program Air Flow Program Coupling Twall,CFM, Tsupply Data: geometry weather materials IAQ V,T,… Energy cons. Tnear surface, h surface

  10. Airflow simulation can be based on: 1) CFD (computational fluid dynamics) 2) Multizone modeling

  11. Coupling

  12. Coupled Airflow and Energy Simulation SoftwareComponents and Data flow

  13. Ventilating Systems Evaluation Thermal comfort - Temperature & gradient DV/CC DV

  14. Energy Modeling for LEED Projects The methodology described in ASHRAE 90.1–2004 (Appendix G), California Title 24–2005, and Oregon Energy Code 2005 involves the generation of two energy models: • one representing a baseline minimum-standard building and the • other representing the proposed building with all its designed energy enhancements. • ASHRAE Standard 90.1 “Energy Standard for Buildings Except Low-Rise Residential Buildings” • posted in the course handouts, also UT library has all ASHRAE and ANSI standards http://www.lib.utexas.edu/indexes/titles.php?let=A • Relevant LEED Documentation • ttp://www.usgbc.org/ShowFile.aspx?DocumentID=7795 • Software List http://www.usgbc.org/ShowFile.aspx?DocumentID=3478

  15. DOE reference building that satisfy ASHRAE 90.1 • Sixteen climate zones • Sixteen building types • http://www1.eere.energy.gov/buildings/commercial_initiative/reference_buildings.html • Models already built for use in EnergyPlus

  16. Accuracy of your energy simulation Depends primarily on your input data! • Geometry • Boundary condition • Selected models • Set points • Control set-up • Internal loads and schedule

  17. but Simulation Software Garbage IN Garbage OUT Use it wisely! Building modeling software Very powerful tool We need sophisticated users more than sophisticated software

  18. How to get more info about software (any software) • Software documentation • http://apps1.eere.energy.gov/buildings/energyplus/energyplus_documentation.cfm • ….. • Forums • http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/ • …. • Call developers • works primarily for non-free software

  19. Review Course Objectives 1. Identify basic building elements which affect building energy consumption and analyze the performance of these elements using energy conservation models. 2. Analyze the physics behind various numerical tools used for solving different heat transfer problems in building elements. 3. Use basic numerical methods for solving systems of linear and nonlinear equations. 4. Conduct building energy analysis using comprehensive computer simulation tools. 5. Evaluate the performance of building envelope and environmental systems considering energy consumption. 6. Perform parametric analysis to evaluate the effects of design choices and operational strategies of building systems on building energy use. 7. Use building simulations in life-cycle cost analyses for selection of energy-efficient building components.

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