107-2 Seminar IV
Application of Climate Service
in Building Energy Assessment
- A Case Study on NTU General Library
Wei-Jung Ho
Advisor: Dr. Po-Hsiung Lin & Kuo-Tsang Huang
[Outline]
[Introduction]
- Background
- Knowledge gap
- Research goal, niche & value
[Method]
- Study design
- Study site & data
[Results]
- Descriptive statistics
- Key findings
[Discussion]
- Recommandations
[Future works]
[Background]
2012-17 Taiwan's Educational Institute average electricity consumption ratio
Others
56%
Taipei 8%
Tertiary institutions
44%
NTU 2%
Other
Tertiary institutions
in Taipei
6%
[Introduction]
6. Review in policy practice of "Governmental agency and school four-saving project" tends to be an ineffective strategy.
[Knowledge gap]
7. Campus energy management dilemma:
- A methodology to assess the different energy-saving options is missing.
[Research goal]
8. To develop a standard decision supporting assessment (DSA) method to tell different strategies' pros and cons on energy-saving plan.
[Research niche & value]
9. NTU campus is the first university that installs digital electric meters system in Taiwan. And it is also the most complete educational unit with the highest coverage rate.
10. DSA model can be replicate and apply on varies building for energy usage assessment.
[Building Energy Assessment]
[Why is BEA useful?]
[key factors in BEA]
[Study design]
[Study site & data]
[Findings in Data Analysis]
[Energy Basic info.]
[Key Finding1: Baseline of GL]
Chinese New Year: 6- 14 Feb 2017
Final Exam Week: 13-17 Jan 2017
May
July
Sept.
[KF2: HVAC&ice storage system]
Cf: GL ice storage system E+ Bill
2016-2014
(kWh)
/E+ price contract/
Summer(6/1-9/30)
Non-summer(10/1-5/31)
22:30-7:30 = 1.61 NTD/ kWh
7:30-22:30 = 3.55 NTD/ kWh
[KF3:Principal components analysis]
E+ Var, PC1: peak load in day time (2015/7)
Evar trend with the magnitude of its standard deviation
[KF3:Principal components analysis]
z = 31.12x + 30.70y + 8828.1w -277.43
[KF3:Principal components analysis]
red:850(+)/blue:386(-) (integral score) ; dashed: predicted; real: real value
[HVAC Basic info.]
冷凍循環四要素:蒸發器、冷凝器、壓縮機、膨脹閥
[HVAC Basic info.]
[HVAC units & parameters]
[Future works]
Due to I am not able to verify the HVAC data with Architecture model, my research topic have been revised again recently, but the previous research results will be part of my thesis.
In the future, my study discuss how different building forms affected by climate event on campus.
[Climate service]
台大校總區建物耗能排名
資料來源:全校即時電力監控系統,只討論皆有資料的日期,因無考量能源使用密度(Energy Use Intensity, EUI),故排名僅供參考。(2016/8)
大背景:氣候變遷下臺灣能源轉型
基本單位:建築節能
社會制度面
電力基礎建設面
http://140.112.166.97/power/index.aspx
用電量(千度)
用電量(千度)
用電量(千度)
用電量分布圖
夏季成功延遲午後尖峰用電
冬季加裝之後溫控系統成效不佳
全年度整體用電大幅提升
2016年8月不同研究教學用大樓用電特性
”
歷史資料的品質,不足以分析建築耗能
總圖增設儲冰槽,降了電費卻用電增加
建物的空間權力分配跨院系所
代碼 | K1 | K2 | K3 | K5 | I9 |
類別 | 辦公類空間 | 圖書館 | 學校教室 與辦公行政 |
工廠實驗 、研究室 |
體育館、運動場館空間 |
說明 | 辦公、會議、行政、視聽、研究、實驗相關空間及其附屬大廳與室內公共空間 | 含閱讀區、書庫區及其附屬大廳與室內公共空間 | 普通教室、專科教室、視聽教室、學校辦公行政區 | 研發空間及其附屬大廳與室內公共空間 | 健身房、舞蹈室、室內球場、保齡球道、運動練習室、運動俱樂部、室內游泳池、含附屬空間 |
建物 | 行政大樓 | 總圖書館 | 新生教學館、普通教學館、博雅教學館、共同教學館 | 凝態館、 原分所 |
新體育館、 舊體育館 |
EUI 標準 | 120 | 111 | 135 | 162 | 125 |
建物選定及分類
十棟建築物的用電量
十棟建築物的EUI
EUI 類別:I9
新體育館、舊體育館
EUI 類別:K1
行政大樓
EUI 類別:K2
總圖書館
EUI 類別:K3
共同、博雅、普通、新生教學館
EUI 類別:K5
原分所、凝態館
為何不使用EUI??
超過EUI平均的四棟建築物:
1.總圖書館
2.新體育館
3.凝態館
4.原分所
第一直覺總會認為
「這四棟建築物一定會亂用電?!」
但,或許我們錯怪了他們?
那麼,有什麼因素會影響用電量嗎?