Wafi City wins the Middle East`s first gold rat

DIVISION INFO AND REFERENCE APPLICATION
Wafi City wins the Middle East’s first gold rating for energy and environmental design with its
district cooling chiller plant, thanks to the unique
communication capabilities of Saia PCD3
DCCP ONE was planned, engineered and the
construction managed from concept to completion by the mechanical and electrical engineers
and project managers of Dubai-based Green Technologies. The first phase of the project was built
by ETA’s Gulf District Cooling Division and
Khansaheb Civil Engineering.
Wafi City is one of Dubai’s luxury shopping malls.
With an architecture inspired by the pyramids
of Egypt, it provides an exciting and beautiful
setting for luxury shops, commercial and residential apartments, a spa, restaurants, a food court
and multi-storey car park. It is also home to the
Raffles Dubai – the first Middle East property of
the internationally renowned Raffles Hotels and
Resorts.
Administrators are always on the lookout for ways
to decrease overall operating costs and run the
facility more efficiently. They want to optimize the
performance of the whole HVAC-related system
through overall control by the building management system. Our solution provides a very efficient
management system for this purpose.
Wafi Property, a division of Dubai-based MKM
Commercial Holdings, scooped a gold rating in
the UAE’s first Leadership in Energy and Environmental Design (LEED) awards for DCCP ONE,
its district cooling chiller plant. DCCP ONE is the
first phase of a 20 000 ton district cooling system
planned for Wafi City. The LEED rating is awarded
for outstanding design and construction practice
that is environmentally responsible, cost effective,
and provides healthy living and working spaces.
Challenge
As energy prices continue to increase, individuals and organizations alike seek to control energy
costs. A facility solution should provide an opportunity to improve the performance of HVAC systems
with adjustable frequency drives and fine tuning
for operational efficiency.
DIVISION INFO AND REFERENCE APPLICATION
– Intelligent facility management system with supervisory control and data acquisition (SCADA)
– Computer-based management system to monitor and control different systems throughout
the facility.
Saia PCD controllers are engineered and designed to help building managers solve their
energy consumption and control problems in
any kind of commercial or industrial infrastructure. The system integrates with building automation, energy management and HVAC systems
to optimize performance throughout facilities,
resulting in lower total costs for operation and
maintenance.
Solution highlights
– PLC-based control automation – Saia PCD s
The main issue was to control and monitor all
equipment to achieve a real, overall improvement
in energy and resource efficiency.
Globensol met this challenge with its choice of automation control of the chiller plant, including the
sub-systems and field equipment. Globensol gave
the facility a value-added solution, using the latest
technology for automation, the HVAC system, and
building management. In this way, Globensol provided a solution with integrated capabilities.
Solution
The engineering advantage was easy and transparent of access to all the equipment necessary
to operate such a huge plant. Unnecessary gateways had been eliminated and the architecture
simplified.
Whereas many other competitors struggled to do
this, Saia PCD, the Swiss made PLC-based controllers, put all the necessary functions and communication at our fingertips.
We could fully concentrate on engineering a
solution that optimizes the use of each individual
component.
–Saia PCD3 series controllers are used for the
automatic control of different systems like
chillers, cooling towers, chilled water pumps,
AHUs, etc. to reduce energy and water consumption.
– SBC HMI, I/Os and communication as required
for each operation.
– Real-time automation system
–Redundancy
– Inter-operability and interconnectivity
– Integration with different standard protocols
for access to all data like
TCP/IP, BACnet, S-Bus, ProfiBus, M-Bus,
Modbus
– Multi-user environment with security levels
– User friendly graphical interface based on
Citect SCADA software
– Report generation and printing for Status,
Error and Alarms
– Automatic report generation for plant efficiency
calculation
DIVISION INFO AND REFERENCE APPLICATION
Globensol’s solution allows full control
and monitoring of the following systems
throughout the facility
– Chilled water pumps
– Heat exchanger valves
– Pressurization unit
– Air handling units
– Extractor fans
– Medium voltage & low voltage panels
– Motor control centre
– Room temperature monitoring
– Transformer voltage monitoring and load sharing
– UPS monitoring and battery charging system
– Chemical dosing equipment
– Sump sweeper pumps
– Refrigerant leak detection system
– Lighting system
– Hose reel system (fire fighting)
– Make-up water system for the cooling towers
– Utility water system monitoring
– BTU metering
– Valves and actuators
This solution also links together all equipment
supplied by a variety of manufacturers
(Trane, Conzerv, Danfoss, Siemens, Benshaw,
Endress+Hauser, Belimo, TAC, calectro, S+S,
Huba Control, Marley, Gent)
Results
Compared with any previous project, this newly
engineered, controlled and monitored district
cooling plant uses 25% less energy and 30% less
water. In addition, users feel a real improvement in
indoor environmental quality.
The key to achieving these ambitious energy
saving targets was the control of the interaction
between the industrial process and the building
automation infrastructure. This is exactly the kind
of challenge where it is good to rely on the openness, reliability and communication capabilities
of Saia PCD. It allows you to concentrate more on
results and less on dealing with the engineering
barriers of many different vendors and their equipment. 