Exportinitiative Energieeffizienz
www.efficiency-from-germany.info
Reported by: Phạm Huy PhongDeputy Director of the Energy Conservation Center HCMC
ENERGY MANAGEMENT AND MONITORING
FOR BUILDING IN VIETNAM
ENERGY MANAGEMENT AND MONITORING
FOR BUILDING IN VIETNAM
January, 2013
Contents
The relevant legal documents of building sector Current energy use and potential energy savings of types of
buildings Introduction to energy management system Typical case – efficient energy management system model
(Legend Hotel and Television building)
3
Decree No.102/2003/ND-CP dated September 03, 2003 of the Government on thrifty and efficient use of energy, specifies activities of thrifty and efficient use of energy in industry, in large buildings, in transportation, in daily activities and for equipment using energy.
Circular No.40/2005/BXD issued energy regulations in construction.
Law No.50/2010/QH12 on economical and efficient use of energy passed by the National Assembly 12 on 28/6/2010, with effect from 1/1/2011: building, authority, institution using State budget and consuming more than 500 tons of oil equivalent in one year is significant energy facility. (Article 32);
Decree No. 21/2011/ND-CP of March 29, 2011, detailing the law on economical and efficient use of energy and measures for its implementation.
Decree No. 73/2011/ND-CP of August 24, 2011, defining handling of administrative violations on economical and efficient use of energy.
Circular No. 39/2011/TT-BCT of October 28, 2011, providing for training, grant of certificates of energy management and energy auditors.
Circular No. 09/2012/TT-BCT of April 20, 2012, specifies the planning, reporting on the implementation plan on economical and efficient use of energy; implementation on energy audit (process and procedures)
75.9%
11.5%
9.5%3.0%Máy lạnh
Đèn chiếu sáng
Thiết bị văn phòng (máy tính, in, photo, quạt,…)
Thang máy & máy bơm nước
Offices
Commercial centers
Hotels
18%
58%
24%
Hệ thống chiếu sáng Hệ thống ĐHKK Các thiết bị tiêu thụ điện khác
(Source: ECC-HCMC)
Air conditioning
Lighting
Office equipment (computers, printers, copiers, fans,…)
Elevators and water pumps
Lighting system
Air-conditioning system
Other equipment using energy
Elevator system
Hot water system
Lighting system
Air-conditioning system
Other system
No. SOLUTION % ENERGY SAVINGS
1Promote awareness of user, establish energy management
5 - 10 %
2 Use air conditioning with high performance 10 - 15 %
3 Improve lighting system 3 - 5%
4Reduce heat penetration (adjust fresh air flow, close door, improve envelop of building)
2 - 4 %
5 Maintain air-conditioning equipment, lights 2 - 3 %
POTENTIAL ENERGY SAVINGS – OFFICES
(Source: ECC-HCMC)
No. SOLUTION% ENERGY SAVINGS
1 Improve lighting system 2 - 3 %
2 Improve air conditioning system 5 - 10 %
3Operate and maintain air conditioning, lighting system, … reasonably
3 - 5 %
4Apply new technology: cold storage tank system, solar hot water system / heat pump.
3 - 5 %
5 Improve envelope of building 1 - 2 %
6 Establish energy management system 1 - 2 %
POTENTIAL ENERGY SAVINGS – HOTELS, COMMERCIAL CENTERS
(Source: ECC-HCMC)
What is energy management system? A system includes:
Resources – financial resources, human resource and technology Procedures/Regulations, programs in order to manage, implement activities.
Scope: Areas related to energy consumption in company
Purpose: Provide methods, programs clearly to implement energy savings in order to
achieve planned objectives.
7
Attract the participation of
personnel
Attract the participation of
personnel
Have objectives to
pursue
Have objectives to
pursue
Maintain effective energy savings
Increase the effectiveness
of other management
system
Không có hệ thống QLNL
8Có hệ thống QLNL
Continual improvement
Cost
No energy management system
With energy management system
Year
9
• Identify areas, equipment of significant energy use and parameters need to test.
• Monitor and record data of energy consumption.
• Conduct energy audit (energy performance, energy savings solution)
• Establish objectives and plan
• Implement plan• Motivate and communicate
energy savings• Evaluate efficiency of
energy management system
• Energy policy• Organizational structure• Motivation• Measurement/Monitoring• Communication –Training• Investment of energy
• Establish energy team• Train to enhance
awareness• Define energy policy• Design documentation of
energy management system
PROCESS FOR ESTABLISHING ENERGY MANAGEMENT SYSTEM
Current assessment
Design Deploy
ISO 50001: 2011 STANDARDInternational standard on energy management system, issued in 6/2011
10
STANDARD ON ENERGY MANAGEMENT SYSTEM
STRUCTURE:
1. Scope
2. Normative references
3. Terms and definitions
4. Energy management system requirements
4.1. General requirements
4.2. Management responsibility
4.3. Energy policy
4.4. Energy planning
4.5. Implementation and operation
4.6. Checking
4.7. Management review
Annex provide guidance for using standard
Countries/Scope Standard
Old energy management system
Denmark DS2403:2001
Sweden SS627750:2003
Ireland IS 393:2005
Spain UNE 216301:2007
Present energy management system
UE-27EN 16001
Effect from 07/2009
China GB / T 23331-2009
Effect from 11/2009
United StateANSI/SME 2000
Effect from 2008From 2010
Future energy management system
World ISO 50001 (from EN 16001)
Issued in 06/2011
Primary energy consumption of 201 building whole
Prim
ary
ener
gy c
onsu
mpti
on(X
103 G
J)
Reducing by 11.2%
Source :NEDO
8.4%
BEMS are installed in 80% of large buildings.
Actual Result
EFFECT OF ENERGY CONSERVATION OF BEMS
Introduction of V-BEMS in VietnamIntroduction of V-BEMS in Vietnam
AHUFCU
A A
A A A
AA AA A A
A
T
T
TTT
TTT
T
T
T
T
T
T
Cooling Tower
Chiller ChillerChiller
condenser Water pumps
primary chilled water pump
secondary chilled water pump
Data Analysis
Cooling load Vs. Outdoor air tempChiller COP Vs. Cooling load Chiller COP Vs. Condenser Ent water tempChiller COP Vs. Evap Lvg temp.Water transportation FactorCooling Load Vs. WTFCondenser water tempSecondary chilled water TempSystem power consumptionCooling load Vs. occupancy rate
Source :Hibiya
Methods of energy savings:Optimization of the chiller number control.Optimization of chilled water temperature.Chilled water pump variable control.Condenser water pump variable control.Management of performance of chiller COP.
Introduction of V-BEMS in VietnamIntroduction of V-BEMS in Vietnam
Typical: Legend HotelIn Ho Chi Minh City: 280 rooms
Content Cost
Equipment 20,000
Install 5,000
Total 25,000 USD
Expected savings
13,000USD/year Payback < 2 years
Source :Hibiya
TELEVISION CENTER BUILDING
Area of 20,000m2 1 basement, 1 ground floor, 14
floors Inaugurated in 2006
In 2011, 100% lamps are replaced to high efficiency lamps
Save more than 10% of electricity consumption of cabinet air conditioner –
217 units
Reduce 10% of capacity utilization of water chiller system
Save 3-5% from the existing transformers
Research on using solar power to supply electricity for small loads in early 2013
Deploy the project to upgrade and expand BEMS for entire building
Objectives
• Manage air conditioning systems, electrical system of daily activities, Gaz system, CO2 pollution levels, pumping system, pressure fan.
• Monitor electricity at loading branch• Manage electrical system• Measure electricity• Attach additional measuring equipment
MacPiu of Ducati, measure electricity in the old building.
• Manage lighting system (monitor & remote control).
• Manage entrance• Statistic materials & components.
• Manage equipment• Set maintainence
schedule.• Record history of
equipment
SOFTWARE FOR MANAGING AND MONITORING ENERGY
RESULTS
Reduce 16% of electricity consumption in 2009 against to in 2008.
The average electrical performance from 7.16 kWh/m2 (2008) to 14.34 kWh/m2 (2009)
Reduce 16% of electricity consumption in 2009 against to in 2008.
The average electrical performance from 7.16 kWh/m2 (2008) to 14.34 kWh/m2 (2009)
Chart of electrical consumption of building in 2008 - 2009
Month
Ele
ctri
city
(kW
h)
THE RESULT
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