Building Investment (September-October 2022)

MHI Group Delivers Two Large-Capacity Centrifugal
Chillers for Singapore’s Marina Bay District Cooling
System
Mitsubishi Heavy Industries (MHI) Group companies – Mitsubishi
Heavy Industries Thermal Systems, Ltd. (MHI Thermal Systems)
and Mitsubishi Heavy Industries Asia Pacific Pte. Ltd. (MHI-AP)
– have jointly delivered two large-capacity centrifugal chillers
for a large-scale district cooling system in Singapore’s Marina
Bay as part of plans to expand the system. The two chillers,
offerings in the “GART series”, have a collective cooling capacity
of 8,400 refrigeration tons (RT). and will bring the total number of
centrifugal chillers provided by MHI Group to the Marina Bay area
to 18.
The GART-400PLS.SCF model centrifugal chillers each have
a cooling capacity of 4,200 RT, the largest capacity of all units
delivered to the Marina Bay district cooling system to date. The
new units can accommodate the HFO-1234ze(E) refrigerant,
which is recognized for its extremely low environmental impact:
a global warming potential (GWP) below 1*1. In addition, the
GART-400PLS.SCF chillers have a near 6% higher rated coefficient
of performance (COP)*2 and approximately 10% higher integrated
part load value (IPLV)*3 than earlier models, enabled by the
adoption of a tandem operating configuration resulting in reduced
energy consumption. Carbon emissions can also be cut by 9%*4.
Marina Bay is Singapore’s central district for business and
tourism and is part of the country’s plan for a sustainable livework-play
community. Designed, built and operated by SP Group,
a leading utilities group and sustainable energy solutions provider
in the Asia Pacific, the Marina Bay district cooling system is the
world's largest underground district cooling network. The system
produces chilled water centrally at two plants, which serves the
air-conditioning needs of over 20 buildings in the Marina Bay
district. Centrifugal chillers are critical components of the plant as
they are the high-efficiency heat source devices functioning at its
core.
Undergoing continuous expansion, the system will service a
total of 28 buildings by 2026 and will reduce approximately 20,000
tonnes of carbon emissions per year.
MHI Group was awarded the order based on its technological
strength and after-sales servicing capabilities, as well as the
environmental performance, economic benefits and high
reliability of its centrifugal chillers – as proven through its
excellent delivery record.
MHI Thermal Systems is Japan’s leading manufacturer
of centrifugal chillers, offering a wide variety of models for
applications including district cooling/heating and factory airconditioning.
The Chiller Business Unit was started in April 2008
in Singapore, and today the team handles related marketing
and servicing at MHI-AP throughout Southeast Asia, responding
efficiently to local customer needs. Going forward, both
companies will continue to meet customer needs and deliver
centrifugal chillers with minimal environmental impact to help
realize a carbon neutral world.
September-October 2022 | www.b-i.biz 15