Energy Conservation & Productivity Enhancement Practices The Japan Perspective

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Ella Baker
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2 INDEX 1. Self Introduction 2. About Azbil 3. Issues of Building Facility Management 4. Solution for those issues 5. Actual cases in Japan 6. Energy saving applications 3

3 1. Self Introduction NAME : MASASHI TAKESAKO, AGE : 45 DATE OF BIRTH : 28 th April 1969 NATIONALITY : Japanese POSITION : General Manager of Global Sales Headquarter MEMBERSHIP OF PROFESSINAL SOCIETIES : MEMBER The Society of Heating, Air-Conditioning & Sanitary Engineers of Japan The Society of Instrument and Control Engineers LICENSED Professional Engineers of Japan (Environmental Engineering; Air Conditioning) Qualified Person for Energy Management First class Piping Work Execution Management Engineers Measurement and Control Engineer Employment : 1992~ Joined to Yamatake Honeywell 1998~ Company name had changed to Yamatake corporation 2006~ Company name had changed to Azbil Corporation 4

4 INDEX 1. Self Introduction 2. About Azbil 3. Issues of Building Facility Management 4. Solution for those issues 5. Actual cases in Japan 6. Energy saving applications 5

5 Full Range BA Products Manufacturer Energy Saving Solution Provider 1906 Instruments Manufacturer YAMATAKE HONEYWELL Trading Company Founder YAMAGUCHI TAKEHIKO 6

6 7

7 Listed in Japan Stock Exchange USD1.21b USD0.98b USD0.38b 8

9 Global Network Dalian, China Belgium, Europe Beijing, China Shanghai, China Turkey Hong Kong, China Vietnam Korea Taiwan U.S.A Kuwait Philippines UAE India Singapore Brazil Spain Saudi Arabia Thailand Indonesia (As of Sep. 2014) Malaysia Australia From JAPAN to GLOBAL 10

10 5,247 Employees in Azbil As of March

11 INDEX 1. Self Introduction 2. About Azbil 3. Issues of Building Facility Management 4. Solution for those issues 5. Actual cases in Japan 6. Energy saving applications 12

12 3. Issues of Building Facility Management Main mission of Building Facility Management 1) Utilize building facilities and operate those efficiently in order to achieve tenant satisfaction 2) Execute correct regular maintenance and avoid unnecessary incident in the building 3) Provide good condition and safe work space to users and maintain it as long as possible Building Management can be more profitable. 13

13 3. Issues of Building Facility Management To achieve those target, below functions are required. 1) Reduce building management cost and also improve building maintenance quality 2) Building data visualization and skill for data analysis to detect invisible fault It might need more manpower. If you don t have enough manpower, how to do that? 14

14 3. Issues of Building Facility Management Sample building facility management work flow Building facility maintenance plan Operation & Monitoring Daily Servicing Data Analysis Maintenance Test Repair Data Analysis & reporting 15

15 3. Issues of Building Facility Management Sample building facility management work flow Building facility maintenance plan Operation & Monitoring IT technology : BMS Data Analysis Daily Servicing Maintenance Test Repair Data Analysis & reporting 16

16 3. Issues of Building Facility Management Sample building facility management work flow Building facility maintenance plan Operation & Monitoring IT technology : BMS Data Analysis Daily Servicing Operation & Maintenance Monitoring is usually Test Repair 24/7 which should require a lot of manpower. If we can reduce the manpower, there will Data be Analysis cost & reporting reduction as well as reduce issues relating to manpower recruitment. 17

17 3. Issues of Building Facility Management Sample building facility management work flow Building facility maintenance plan Operation & Monitoring IT technology : BMS Daily Servicing Data Analysis BMS has already achieved some efficiency improvement. But if BMS function is lost, efficiency Maintenance Test improvement Repair will also be lost. Data Analysis & reporting 18

18 3. Issues of Building Facility Management Sample building facility management work flow Building facility maintenance plan Operation & Monitoring Daily Servicing Data Analysis Expert, experience Maintenance Test Repair Data Analysis & reporting 19

19 3. Issues of Building Facility Management Sample building facility management work flow Building facility maintenance plan Operation & Monitoring Daily Servicing Data Analysis Expert, experience Maintenance Test Repair Data analysis is important for further improvement. Data Analysis However & it reporting requires expert of building facility or experienced personnel to do a good analysis. It is really difficult to achieve it without those knowledge. 20

20 INDEX 1. Self Introduction 2. About Azbil 3. Issues of Building Facility Management 4. Solution for those issues 5. Actual cases in Japan 6. Energy saving applications 21

21 3. Issues of Building Facility Management Sample building facility management work flow Building facility maintenance plan Operation & Monitoring IT technology : BMS Data Analysis Daily Servicing Operation & Maintenance Monitoring is usually Test Repair 24/7 which should require a lot of manpower. If we can reduce the manpower, there will Data be Analysis cost & reporting reduction as well as reduce issues relating to manpower recruitment. 22

22 4. Solution for those issues Need to consider how to reduce operation & monitoring manpower. Solutions 1) Remote Monitoring service 2) Integrated Monitoring Center for multiple building 23

23 3. Issues of Building Facility Management Sample building facility management work flow Building facility maintenance plan Operation & Monitoring IT technology : BMS Daily Servicing Data Analysis BMS has already achieved some efficiency improvement. But if BMS function is lost, efficiency Maintenance Test improvement Repair will also be lost. Data Analysis & reporting 24

24 4. Solution for those issues Need to ensure the continual monitoring function without any interruption. Solutions 1) Redundant System 2) Very frequent system maintenance 3) Remote maintenance 25

25 3. Issues of Building Facility Management Sample building facility management work flow Building facility maintenance plan Operation & Monitoring Daily Servicing Data Analysis Expert, experience Maintenance Test Repair Data analysis is important for further improvement. Data Analysis However & it reporting requires expert of building facility or experienced personnel to do a good analysis. It is really difficult to achieve it without those knowledge. 26

26 4. Solution for those issues Data analysis usually requires expert and experienced or special skill personnel because we need to find potential fault according to the data analysis. 1) Continual data collection must be implemented 2) SMS paging can be one of the solution But this is valid only for visible fault 3) For potential fault detection, data analysis is unavoidable Remote data service 27

27 INDEX 1. Self Introduction 2. About Azbil 3. Issues of Building Facility Management 4. Solution for those issues 5. Actual cases in Japan 6. Energy saving applications 28

28 5. Actual Cases in Japan 5-1 Remote Operation Service 5-2 Remote Maintenance Service 29

29 5. Actual Cases in Japan 5-1 Remote Operation Services 30

Operation Center through dedicated network.

building operator to manage the building more

30 5. Actual Cases in Japan 5-1 Remote Operation Service BMS in client building is connected to Remote Operation Center through dedicated network. It can provide various services and also can help building operator to manage the building more smoothly and more effectively. Network Remote Operation Center Client building 31

31 5. Actual Cases in Japan 5-1 Remote Operation Service Remote Operation Service Menu 1) BMS operation help desk 2) Backup monitoring on behalf of building operators 3) Remote BMS operation 4) Emergency on-site troubleshooting Provide more efficient building management. 32

32 5. Actual Cases in Japan 1) BMS Operation help desk Advise about BMS operation through telephone.? Inquiry (How to operate?) Advise Client Building Remote Operation Center 33

customer through telephone when some emergency alarm

33 5. Actual Cases in Japan 2) Backup monitoring on behalf of building operators Notify an emergency alarm to customer through telephone when some emergency alarm occurs. Notice Alarm Client Building Remote Operation Center 34

34 5. Actual Cases in Japan 3) Remote BMS operation Operate BMS remotely based on operation request from client. 3. Operation Request 2. Notice 1. Alarm 4. Operation Client Building Remote Operation Center 35

troubleshooting according to customer s request.

35 5. Actual Cases in Japan 4) Emergency on-site troubleshooting Dispatch service staff for on-site troubleshooting according to customer s request. Troubleshoot request On-site Troubleshooting Client Building Remote Operation Center 36

36 5. Actual Cases in Japan Benefits of Remote Operation Service 1) Support by skilled engineer Engineer in Remote operation center is skillful and have vast knowledge on building facility. 2) Night time shift is not necessary Building owner needs to provide building operator only in the daytime. Remote Operation Center can take over night time monitoring. 3) Better quality job with less manpower Because of support by skilled engineer, it can achieve better quality job with less manpower. 37

5. Actual Cases in Japan Number of connected building : 564 (as of May 2009) Total GFA of those buildings : 5,630,000 m2 Total monitoring points :299,290 points West Japan Number of buildings : 236

37 5. Actual Cases in Japan Number of connected building : 564 (as of May 2009) Total GFA of those buildings : 5,630,000 m2 Total monitoring points :299,290 points West Japan Number of buildings : 236 Total GFA of those buildings : 3,070,000m 2 Total monitoring points : 110,800pts East Japan Number of buildings : 328 Total GFA of those buildings : 2,560,000m 2 Total monitoring points :100,400pts West Japan Remote operation center East Japan Remote operation center 38

38 5. Actual Cases in Japan 頻度 1:00 1:30 0:30 2:00 2:30 0:00 More than 12 hours 3:00 3:30 4:30 5:30 6:00 4:00 5:00 6:30 7:00 7:30 8:30 9:00 10:30 12:00 8:00 9:30 10:00 11:00 11:30 Actual 2003 年度上期緊急処理復旧所要時間 time for troubleshooting via Remote ( 復旧時刻報告連絡済みの件数 operation service ) More than 80% troubles were Settled within 2.5 hours % % 80.00% 60.00% 40.00% 20.00%.00% Time Data for interval Recovery 39

39 5. Actual Cases in Japan 5-2 Remote Maintenance Services 40

40 5. Actual Cases in Japan 5-2 Remote Maintenance service Number of buildings :1920 (As of August 2014) Total GFA : 72,000,000 m2 Total monitoring points :540,000 points 41

Maintenance service Information service To provide BMS devices remote

41 5. Actual Cases in Japan 5-2 Remote maintenance service Service menu Ecology service To provide various services related to energy saving Maintenance service Information service To provide BMS devices remote diagnosis service To provide energy consumption and room comfort information 42

42 5. Actual Cases in Japan 5-2 Remote maintenance service Ecology Services 43

5. Actual Cases in Japan 5-2 Remote maintenance service Ecology services BMS Gateway Client Building Service company Data collection Server Expert

result of the activities, potential faults can be shared. Also servicing menu can be reviewed yearly to provide best solution for customer.

43 5. Actual Cases in Japan 5-2 Remote maintenance service Ecology services BMS Gateway Client Building Service company Data collection Server Expert Dedicated staff team Data analysis Site survey Interview, detailed site survey Report of survey and proposal To have a meeting with client and result of the activities, potential faults can be shared. Also servicing menu can be reviewed yearly to provide best solution for customer. Experienced engineers will be involved in this data analysis and find out the invisible faults and its countermeasures together with expected energy saving amount. 44

5. Actual Cases in Japan 5-2 Remote maintenance service Ecology services Most suitable energy saving applications can be proposed based on data

44 5. Actual Cases in Japan 5-2 Remote maintenance service Ecology services Most suitable energy saving applications can be proposed based on data analysis. Energy saving applications Pump/FAN Speed control Skin load control VWV & VWT control Ventilation control CO&CO2 HVAC & Lighting time Program 45

45 5. Actual Cases in Japan 5-2 Remote maintenance service Maintenance Service 46

46 5. Actual Cases in Japan 5-2 Remote maintenance service Maintenance services BMS Gateway Client building Service Company Data collection Troubleshooting Network Server Data Analysis BMS diagnosis Control stability check - Reporting - Proposal for improvement Service engineer 47

47 5. Actual Cases in Japan 容量 (MB) 5-2 Remote maintenance service Maintenance services BMS remote diagnosis BMS devices such as servers and controllers diagnosis can be done remotely. As a result of that, stable and continual monitoring can be provided. 空調自動制御システムリモートメンテナンス月次報告書御中山武ビルシステム株式会社 *** 店 ***** 部 ** サービスセンター年月日日時アプリアクション ID データ東京都港区芝浦 4-3-4( 田町きよたビル ) 2001/9/2 7:49:38 RPTprtm FfPageRead 1201 日報拡張表示フォーマットテーブルが検出できなかった為標準の日報表示とします (No.1) 2001/9/2 7:49:44 RPTprtm FfPageRead 1201 DBの読み込みに失敗しました DBの構造データまたはDBの状態を確認して下さい (No.2) TEL: **** 2001/9/2 7:49:44 RPTprtm FfPageRead 1201 日報拡張表示フォーマットテーブルが検出できなかった為標準の日報表示とします (No.2) FAX: **** 2001/9/2 7:50:15 TMS TMStimedSndMsg.cpp 309 Send Time Data --> Hour:7, Minute:50, Second:15, MSecond: /9/2 7:53:00 SystemMenu OnClose Handle:2 2001/9/2 7:58:40 SystemMenu OnClose (null) Handle:0 2001/9/2 7:58:41 SystemMenu OnClose (null) Handle:0 1. 各機器の診断データバックアップ 2001/9/2 8:04:39 SECmdbkick Main 10 形番が無効 M C U < 判定 : 良好 > 2001/9/2 8:10:15 TMS TMStimedSndMsg.cpp 309 Send Time Data --> Hour:8, Minute:10, Second:15, MSecond:4 (1) ポイント情報のバックアップ作成実施 ( 実施日 :2001/09/11) 2001/9/2 8:15:47 SystemMenu FfStartAppli handle=2 2001/9/2 8:18:28 SystemMenu OnClose Handle:2 (2) システム構成機器警報の確認 2001/9/2 8:18:42 SystemMenu FfStartAppli handle=2 9/13 uic2 ライン1コンが無応答になり復旧しました 2001/9/2 8:19:24 SystemMenu OnChange 0 From:15.1 To:15.2 Handle:2 (3) システムのイベントログの確認 2001/9/2 8:19:25 DATmsg DATmsgMain.cpp 189 Hostname : b000mcu1, IP : c0a80133, Port : /9/2 8:19:29 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[1], lnum=[0] 9/15 データベースに関するログが 3 件ありました 2001/9/2 8:19:29 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[0], levt=[1] 2001/9/2 8:19:34 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[5] 2001/9/2 8:19:34 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[5], levt=[2] 2001/9/2 8:19:35 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[15] (4) ハードディスクの空容量の確認 2001/9/2 8:19:36 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[15], levt=[2] 異常ありませんでした 2001/9/2 8:19:37 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[20] 2001/9/2 8:19:37 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[20], levt=[2] 2001/9/2 8:19:38 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[30] H D D 容量の推移 MCU1(MB) 2001/9/2 8:19:39 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[30], levt=[2] 2001/9/2 8:19:40 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[40] USRDATA1(MB) 10, /9/2 8:19:40 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[40], levt=[2] 8,000, /9/2 8:19:41 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[45] 2001/9/2 8:19:42 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[45], levt=[2] 1, /9/2 8:19:43 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[55] 2001/9/2 8:19:43 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[55], levt=[2] 100 7,000, /9/2 8:19:44 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[60] 2001/9/2 8:19:45 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[60], levt=[2] /9/2 8:19:46 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[70] 2001/9/2 8:19:46 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[70], levt=[2] 1 6,000, /9/2 8:19:47 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[80] 2001/09/ /09/ /09/ /09/ /09/ /09/ /9/2 8:19:48 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[80], levt=[2] 2001/9/2 8:19:49 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[85] 2001/9/2 8:19:49 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[85], levt=[2] 5,000, /9/2 8:19:50 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[2], lnum=[95] U IC ( 設備統合コントローラ ) < 判定 : 良好 > 2001/9/2 8:19:50 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[95], levt=[2] (1) データファイルのバックアップ作成実施 ( 実施日 :2001/09/5) 2001/9/2 8:19:51 RPTCtrl cx321_ondatcolreturn 1 lmsgkind=[5], levt=[3], lnum=[0] (2) 自己診断プログラムによるハードウェア通信状態の確認 2001/9/2 8:19:51 RPTCtrl tions SGRPTDmdReport 1 ierrorid=[0], levt=[3] 4,000,000 自己診断結果に異常は見受けられませんでした 2001/9/2 8:20:23 SystemMenu OnClose Handle:2 通信エラーは回中 0 回でした 2001/9/2 8:20:28 SystemMenu OnChange 0 From: To: Handle:2 2001/9/2 8:20:30 SystemMenu OnChange 0 From: To: Handle:2 リモートユニット < 判定 : 良好 > 3,000, /9/2 8:20:31 SystemMenu OnChange 0 From: To: Handle:2 (1) データファイルのバックアップ作成実施 ( 実施日 :2001/09/5) 2001/9/2 8:20:33 SystemMenu OnChange 0 From: To: Handle:2 2001/9/2 8:30:15 TMS TMStimedSndMsg.cpp 309 Send Time Data --> Hour:8, Minute:30, Second:15, MSecond:44 (2) エラーログの確認 2001/9/2 8:50:15 TMS TMStimedSndMsg.cpp 309 Send Time Data --> Hour:8, Minute:50, Second:15, MSecond:82 9/13 3ライン4コンで電源断が発生しました 2,000,000 作成日 : 2001 年 10 月 9 日 UIC1 送受信数 2. 緊急要請の履歴 1,000, 所見 0 01/09/04 01/09/07 01/09/10 01/09/13 01/09/16 01/09/19 01/09/22 01/09/25 正常送信正常受信 48

48 5. Actual Cases in Japan 温度 [ ] 温度 [ ] 弁開度出力 [%] ダンパ開度出力 [%] 温度 [ ] 弁開度 [%] ダンパ開度 [%] 要求風量 / 計測風量 [m3/hr] 5-2 Remote maintenance service Maintenance services 1) To check the control stability according to the collected data. 2) To do fine tuning services according to the data. 3) To provide regular servicing based on the accuracy, stability and response time of the control. 室内温度制御 ( 冷水弁温水弁開度 ) 推移 ( 火 ) AHU-1 給気温度制御 ( 冷水温水弁 / 冷温水弁ダンパ開度 ) 推移 ( 火 ) AHU-1 VAV01 室内温度制御 (IVC) 推移 :00 02:00 04:00 06:00 008:00 10:00 12:00 14:00 16:00 18: :00 22:00 00: :00 02:00 04:00 06:00 08:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 00:00 給気温度設定 ( 冷房用 ) 給気温度設定 ( 暖房用 23 ) 600 冷水弁開度温水弁開度給気温度計測室内温度設定外気ダンパ開度出力 ( 比例弁 ) 室内温度計測外気ダンパ開度空調機状態空調機 WU 中空調機状態空調機冷暖切替え ( 暖房時 ON) 還気ファン状態冷暖切替え ( 冷房時 ON) 還気ファン状態外気冷房中外冷制御許可外気冷房中外冷制御許可冷水弁開度出力温水弁開度出力 20 0 冷温水弁開度出力トータル制御状態 ( 暖房増 00:00/ 適正 02:00 / 冷房増 04:00 ) 06:00 08:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 00:00 外気ダンパ開度出力 (ON/OFF) VAV01 制御設定 VAV01 室内温度計測 VAV01 制御状態 ( 暖房増 VAV01 発停 (Hi/ON/Low) / 適正 / 冷房増 ) VAV01 静圧過不足 ( 過剰 / 適正 / 不足 ) VAV01 冷暖状態 ( 暖房 / 送風 / 冷房 ) VAV01 要求風量 VAV01 計測風量 49

So we proposed valve cleaning to customer.

49 Valve Position 5. Actual Cases in Japan Case-1 : Sample case of Troubleshooting Data analysis One valve opening shows that it is always 100%. We suspected that the valve clogged by something. So we proposed valve cleaning to customer. Time Result We found that the valve was clogged. So we did cleaning and put it back to the original position. After that, valve action became normal. Before cleaning After cleaning 50

50 5. Actual Cases in Japan Case-2 : Minimize the system downtime Because of remote system diagnosis, Hard disk failure could be detected in advance and it could be replaced before the system downed. Benefit = Prevent system down When BMS, which is in quite remote location, becomes failure, troubleshooting could be supported remotely. Benefit = Time for troubleshooting can be shorter (It was normally next day service, but it was settled in 1 hour) Emergency call Preventive maintenance Trouble happens Time for troubleshooting Recovery Minimize troubleshooting time 51

51 5. Actual Cases in Japan 5-2 Remote maintenance service Information service 52

2) To evaluate the room condition by room comfort

52 5. Actual Cases in Japan 5-2 Remote maintenance service Information service 1) To provide energy consumption target and actual to make energy management easier. 2) To evaluate the room condition by room comfort factor to make room condition check easier. 1) Energy consumption 2) Room comfort 3) Evaluation 53

53 INDEX 1. Self Introduction 2. About Azbil 3. Issues of Building Facility Management 4. Solution for those issues 5. Actual cases in Japan 6. Energy saving Saving applications 54

54 6. Energy saving applications There is quite a lot of facilities in building. And it consumes much energy also. In order to make building management more profitable, energy conservation measure for those facilities are essential. 55

55 6. Energy saving applications Key point of energy saving in building facility 1) To provide better efficiency equipment High efficiency chiller, boiler, fan VSD, pump VSD, LED lighting Easy and visible 2) To optimize its operation according to load demand, outdoor condition, room occupancy etc. Not so easy and invisible Fan vs VAV, Pump vs valve, chiller combination etc 56

56 6. Energy saving applications Example : Pump vs Valve Full load condition Partial load condition AHU AHU AHU AHU P AHU Fully open P AHU Low opening VSD VSD Full load Decreased but still high 57

57 6. Energy saving applications High supply pressure Low supply pressure Low valve opening High valve opening Pressure Loss Wasting Energy Conventional No Pressure Loss! Energy Saved! Optimized control 58

58 6. Energy saving applications Reducing Indoor Load Zero-Energy Band Control Optimum Temp. Setting Setpoint Management Optimum Start/Stop (OSS) Zone Control Interlock w/final Lockup Blind Control Dimmer Control Workplace 59

59 6. Energy saving applications Improving Air Distribution VAV Control AHU VSD Control Duty Cycling Using Natural Energy OA Cooling Night Cooling Reducing Outdoor Air Load Minimum OA Intake AHU Total HEX Control Reducing Running Chiller Vaporization Cooling 60

60 6. Energy saving applications Chiller Plant Improving Chiller Efficiency Chiller Sequential Control Optimum Combination Primary Pump Optimum Load Distribution VWT Control Improving Water Distribution Primary Pump VWV Secondary Pump VWV Secondary Pumps Sequential Control 61

61 6. Energy saving applications Cooling Tower Outdoor Unit Improving Water Distribution Cooling Water VSD Control Cooling Tower Temp. Control Using Natural Energy Free Cooling 62

62 6. Energy saving applications Reducing Energy Cost Power Demand Control Power Factor Control Energy Demand Control VWT Control Improving Air Distribution Parking Lot Ventilation Machine Room Parking 63

63 Differential Pressure (kpa) Flow rate (CMH) 6. Energy saving applications (in Singapore) Fusionopolis VWV A Project (Office Building) : GFA 120,000m VWV :00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 [ ] Diff. Pressure(kPa) [ ] Pressure setting(kpa) [ ] Flow(m3/h) 0 In the night, pressure set point dropped to around 200kPa. 64

64 Pump Power(kWh) 6. Energy saving applications (in Singapore) Energy saving VWV control VWV % Reduce the power consumption :00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 [ ] TTL RUNNING PMP PWR UNDER VWV Energy saving Comparison with conventional VSD control. 65

65 6. Energy saving applications (in Singapore) VAV B building Azbil Control C building Page 66 66

66 6. Energy saving applications (in Singapore) VAV B building Azbil Control C building Page 67 67

67 Summary To provide better quality of building management with less manpower, Remote maintenance service can be one of the solution. Also, in order to achieve building management cost reduction, energy saving application can be considered to implement. 68

68 69

69 Others 70

70 1) Redundant System Redundant server Redundant network Redundant server Redundant PC Redundant DDC network Initial cost becomes more expensive 71

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