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DOE II 建築節能模擬軟體介紹 - 空調節能設計篇

DOE II 建築節能模擬軟體介紹 - 空調節能設計篇. 工研院能環所 李浩銓 August 29, 2007. Architectural Energy Corporation. CVisualDOE 建築節能模擬軟體簡介. 節能方案. Institutional building. New Construction 20000 m 2 juvenile detention facility

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DOE II 建築節能模擬軟體介紹 - 空調節能設計篇

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  1. DOE II建築節能模擬軟體介紹-空調節能設計篇 工研院能環所 李浩銓 August 29, 2007 Architectural Energy Corporation

  2. CVisualDOE建築節能模擬軟體簡介

  3. 節能方案

  4. Institutional building • New Construction • 20000 m2 juvenile detention facility • Base case constructions and efficiencies are based on California’s Title-24 standards.

  5. 28 種DOE-2 HVAC 系統

  6. Four-Pipe Fan Coil 2.1A Reference Manual, p. IV-160

  7. Variable Air Volume System 2.1A Reference Manual, p. IV-172

  8. CVisualdoe – 專案頁面

  9. CVisualdoe – 區塊頁面

  10. 標準區塊

  11. 自定區塊 A floor plan of Four Times Square green office tower in New York

  12. CVisualdoe – 房間頁面

  13. CVisualdoe – 外牆頁面

  14. CVisualdoe – 空調送風系統頁面

  15. CVisualdoe – 區域頁面

  16. CVisualdoe - 3D 視圖

  17. CVisualdoe – 空調系統編輯頁

  18. CVisualdoe – 主機房編輯頁

  19. CVisualdoe – 編輯器

  20. CVisualdoe – 建築外牆結構編輯

  21. CVisualdoe – 時程編輯

  22. CVisualdoe – 節能方案編輯

  23. CVisualdoe – 檢查模組定義

  24. CVisualdoe – 空調區域診斷系統

  25. CVisualdoe – 模擬結果(使用電力)

  26. CVisualdoe – 結果 (耗能成本)

  27. CVisualdoe – 報告(空調系統)

  28. CVisualdoe – 報告 (以綠建築leed報告型態輸出)

  29. CVisualdoe – 耗能結構分析圖

  30. CVisualdoe – 耗能結構分析圖 2

  31. DOAS in CVisualDOE 4.0 • Create a dummy zone with no thermal loads • 1ft x 1ft x 1ft, no plenum • Assign adiabatic walls, roofs and floors to the dummy zone • Set LPD, EPD, infiltration, and number of people to 0 • Use Advanced Edit to set floor weight to 10 (light-weight construction) • Create a 100% OA system (DOAS) serving the dummy zone • Use the DOE-2 keyword OA-FROM-SYSTEM to assign the DOAS for other systems • Make sure the DOAS is a constant volume system with adequate outside air amount

  32. 地源式熱泵 Heat Pump編輯頁面 • Use DOE-2 WLHP (Water Loop Heat Pump) System • Ground Temperature • Cannot have supplement boilers or cooling towers!

  33. 熱泵Heat Pump 編輯頁面

  34. Demand Control Ventilation • DOE-2 defaults OA as constant volume • DCV – outside air volume depending on number of occupants • Use the outside air schedule. The hourly ratio represents OA volume as a percentage of DESIGN supply air volume

  35. Default OA Schedule

  36. DCV OA Schedule

  37. 模擬精確度 • Energy • ± 8 – 10% monthly energy • ± 3 – 5% annual energy • Demand • ± 10 – 12% monthly peak demand • ± 5 – 6% annual average peak demand • Average monthly error > Annual error • Monitored data can cut the error in half

  38. 模組誤差可能來源 • Unfamiliar with modeling tool • No clear objective • Poor data and model setup • Equipment control (part-load performance) • Operating schedules • Equipment sizing • Ventilation • Building envelope • Internal loads (LPD, EPD, OCD) • Weather data • No quality control – review, checklist, etc.

  39. 模組校準所需資料 • Measured LPD, EPD, and number of occupants • Weather data • Operating schedules • Equipment operating performance • Utility bills (Monthly kWh, kW, and therm)

  40. 案例分析-模擬軟體應用介紹

  41. 案例說明 • Building 64, ERL/ITRI. Four floors with a basement, total floor area of 7300m² • An office building built in 1985 • Concrete structure • Double-pane windows with ext. shading, WWR 18% • Each floor served by a CAV and a VAV systems with DOAS. Basement by a fan-coil unit • Central plant – 2 chillers, 2 cooling towers, 2 CHW and 2 CW pumps • Avg. LPD 14 W/m², avg. EPD 6.8 W/m²

  42. Plan Views

  43. 3D View

  44. 案例模擬結果 - 耗能結構圖

  45. 案例 – 模組校準結果

  46. 節能方案說明

  47. 節能方案模擬結果

  48. 案例分析 – 其他應用 • Evaluate utility offers – to determine which rate structure results in the lowest electricity cost for a specific building • Explore other EEMS like VSD chillers, heat recovery, daylighting and controls, thermal energy storage, free cooling.

  49. 評估台電各種費率

  50. 時間電費編輯

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