HKGBC ACT-Shop Driving Retro-commissioning to The Private Sector 18 MAY 2017 1
Content 1. Recap - ACT-Shop Cases 2. ACT-Shop Active Training 3. Way Forward – Any Opportunities 2
RECAP - ACT-SHOP CASES 3
First Batch - Saving Summary Suggested Re-tuning Work Bldg A Bldg B Bldg C Bldg D Bldg E Internal Floor Area (m 2 ) 36,218 4,485 150,000 45,000 20,349 Chillers Reduce chiller operation (N-1) to achieve higher 5-6% 3-5% 3-5% <1 year 3-5 year <1 year overall COP 1-3% 1-3% 1-3% Increase Tcws <1 year <1 year <1 year 0-1% 1-3% 0-1% 1-2% 0-1% Max. demand shedding <1 year <1 year <1 year <1 year <1 year Pumps (chilled water flow) 1-3% 1-3% 1-3% Re-tune bypass valve setting <1 year <1 year <1 year Install differential pressure sensors at the critical 1-3% 1-3% <1 year <1 year path 3-5% 3-5% Install VSD on the existing chilled water pumps N/A N/A 3-5 year 3-5 year Cooling towers 1-3% 1-3% Reactive cooling tower (CT) optimisation N/A N/A N/A <1 year <1 year 4
Second Batch – General Summary 2 nd Batch Summary Target Participant • Building Case IFA (m 2 ) No. of 20+ Developers in Hong Kong • Chiller 5+1 participants • Plant F 693,371 5 T otal Floor Area Summary G 97,986 2 Batch 1 Batch 2 H 95,122 4 250,000 m 2 1,100,000 m 2 I 96,518 3 J 72,299 2 K 7,600 2 5
ACT-SHOP ACTIVE TRAINING 6
Sustainable / Organic model Promotion, Invitation & Introduction of ACT-Shop Process Knowledge / Action & Experience Evaluation Any sharing Opportunities ?? Culture/Data/ Knowledge Formation Feed to Active Training 7
Programme Timeline – ACT-Shop Series Jul 2016 Feb 2017 Jul 2017 Feb 2018 Jul 2018 May 2017 Nov 2016 Oct 2017 3rd Batch Registration 2nd Batch Registration 4th Batch Registration 1 st Batch 5 2 nd Batch 5 + 1 3 rd Batch 5 + 1 4 th Batch 5 + 1 Preparation Work Preparation Work Active Training Class (Session 1) Pilot Training Pilot Training Active Training Class (Session 2) Opportunities: Technology Integration Continuous Sharing 8
ACT-Shop Series ACT-Shop Build up knowledge & competence of the participating • building operators/services providers Target • At least one building from the 20+ large commercial • building owners + a few other pilot cases On-going knowledge update • Active Training Reinforcement and Extending to Industry • Technical integration Facilitate development of BIM & fully utilisation of BMS • Continuous Sharing Forums • Experience sharing with EMSD & Industry • Best Practice Notes • 9
Active Training Objectives Knowledgeable client Knowledgeable services providers Knowledgeable services / product As a MAINSTREAM in Industrial O&M Practices 3
Active Training Target Participants Building Managers / Engineers / Operators • Service / Product Providers / Contractors • Mode of training - Semi-ACT-Shop • Go through the essential process of retro-commissioning • Use real data from participants’ buildings • Participants are expected to: • Have in-depth knowledge/skills and know how retro-commissioning works • Lead in-house team / service provider to carry out retro-commissioning • Provide specification & requirements to service providers when contract out • the process 11
Active Training Training module for pilot being establishing Module Structure Theory • Basic theories on HVAC relating to energy efficiency • Basic mathematical and analytical methods used during the training • Knowledge based retro-commissioning based on real case and data • Data collections, screening and data analysis, • Identifying opportunities • Saving estimates and evaluation • Practical methods on implementing improvements • Measurement and verification • Exercises with participants’ data • Technology sharing by suppliers • Performance characteristics of major equipment/BMS/services/design • New technologies • Industry updates • Government, other institutions or other speakers • Group or individual project (optional) • An energy saving project report demonstrating what has learnt (saving • estimation, implementation, measurement & verification) Future modules on knowledge based energy management • 12
WAY FORWARD – ANY OPPORTUNITIES 13
Active Training Accelerating Extending Leveraging on commercial values o Merge technology with people o Hotels and FM managed buildings o Create value and edge for Facility management companies o Include services/product providers for ACT-Shop and training o Link available incentive schemes 14
Government Pilots, Tech. Guide /institutional ACT- Shop, active training Large consumers/self- Integrating technology - owned people Buildings managed by Creating value and edge for FM FM Hotel Developing data/experience for hotels Incentive opportunities Other multi-owned buildings 15
Will Facility managers be interested in selling RCx ? Considerations Growing demand from client on energy saving and green operation o Corporate branding on CSR o Create value for client at a low cost as RCx focuses on low cost optimisation o Trained on-site staff can carry out the work o An added edge to secure FM contracts o Get additional remuneration on managing retro-fitting works o
Moving Forward 17
Technology & People Integration • Building Analytic & • Pneumatic Control • Natural Curve • Digital Control Smart grid system Control • Gauges, • Functional • Data/Information thermometer, utility automation Display metres Knowledge-based ACT-Shop Drivers Experience-based 18
User’s Needs Questions Solutions Chiller Load Percentage Daily Profile 50.0 40.0 How good? % of Load 30.0 How bad? 20.0 10.0 0.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 21.0 Daily Hour Coefficient of Performance Daily Profile 12.0 10.0 8.0 Are we getting better? COP 6.0 4.0 Benchmarking picture? 2.0 0.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 21.0 Daily Hour Approach Temperature Daily Profile 20.0 Temperature 15.0 Any actions to improve 10.0 system performance? 5.0 0.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 21.0 Daily Hour 19
Customising User’s Needs How good? How bad? Chiller Load Percentage vs Cooling Load Chiller Load Percentage Daily Profile 100.0 50.0 80.0 % Load of System 40.0 60.0 % of Load 30.0 40.0 20.0 10.0 20.0 0.0 0.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 21.0 0 500 1000 1500 2000 2500 3000 3500 Daily Hour System Cooling Load (kW) 1 2 Daily Profile from Logsheet / BMS Plotting parameters against demand and weather condition Chiller Load Percentage vs Cooling Load Chiller Load Percentage vs Cooling Load 100.0 100.0 Poor % Load of System % Load of System 80.0 80.0 60.0 60.0 40.0 40.0 20.0 20.0 Good 0.0 0.0 0 500 1000 1500 2000 2500 3000 3500 0 500 1000 1500 2000 2500 3000 3500 System Cooling Load (kW) System Cooling Load (kW) 4 3 Identify “Good” and “Poor” Area Draw Design Curve & Customisation 20 Curve
Customising User’s Needs Are we getting better? Benchmarking picture? Coefficient of Performance Daily Profile Coefficient of Performance Daily Profile 12.0 12.0 10.0 10.0 Average 8.0 8.0 COP COP 6.0 6.0 4.0 4.0 2.0 2.0 0.0 0.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 21.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 21.0 Daily Hour Daily Hour 1 2 Daily Profile from Logsheet / BMS Identify average base line from varies time interval Fair Good Excellent Poor 0-4 4.1-6 6.1-8 8.1 or Above 3 COP Customisation Benchmarking 21
Customising User’s Needs Any actions to improve system performance? Approach Temperature in Cooling Towers vs Approach Temperature Daily Profile weather 15.0 20.0 12.5 Temperature (°C) 15.0 Temperature 10.0 7.5 10.0 5.0 2.5 5.0 0.0 0.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 21.0 Wet-bulb Temperature Daily Hour 1 2 Daily Profile from Logsheet / BMS Plotting parameters against weather condition Approach Temperature in Cooling Towers vs Approach Temperature in Cooling Towers vs weather weather 15.0 15.0 12.5 12.5 Poor Temperature (°C) Temperature (°C) 10.0 10.0 8 o C 7.5 7.5 5.0 5.0 2.5 3 o C 4 o C 2.5 Good 0.0 1 o C 0.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 Wet-bulb Temperature Wet-bulb Temperature 4 3 Evaluate space of improvement Draw upper limit and lower limit boundary 22
Invitation for Expression of Interest (Eol) to Participate as the “ACT-Shop” Pilot Project: www.hkgbc.org.hk/eng/EoI.aspx 23
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