Winsland House II is a prestigious BCA Green Mark 2017 GoldPLUS certified building. With the introduction of Green Mark 2021, they needed to improve their TSE to <0.8kW/RT to maintain their GoldPLUS rating.
Winsland House II wanted to achieve the new Green Mark 2021 TSE requirements without replacing the entire chiller system. Prior to project commencement, the chiller plant efficiency was recorded at 0.650 kW/RT and airside efficiency was 0.366 kW/RT, therefore TSE was estimated to be 1.016 kW/RT.
How do you improve efficiency without replacing the entire system?
Aircond.Network implemented the following solutions to meet these ambitious goals.
With nearly 10 years of operation, the chiller system required a review and optimisation to restore it to peak performance. Aircond.Network’s deep expertise with SMARDT chiller components and a comprehensive overhaul brought the efficiency up with an 8% improvement. Additionally, the team optimised the entire chiller plant, including the chilled water pumps, condenser water pumps, and cooling towers using advanced building management system (BMS) controls.
To enhance airside efficiency, Aircond.Network retrofitted the existing AHUs with NOVENCO Building & Industry EC Zerax Fans. These fans improve efficiency by 20%-40% compared to traditional centrifugal fans. The result was a 59% improvement in AHU performance, reducing the airside AHU efficiency to 0.148kW/RT.
By optimising the chiller system and retrofitting the AHUs, Aircond.Network successfully achieved a TSE of 0.747kW/RT for chiller plant & AHUs, well below the Green Mark 2021 threshold of <0.800kW/RT, ensuring Winsland House II maintained its GoldPLUS rating.
Aircond.Network’s strength in delivering smart HVAC solutions that enhance energy efficiency for the existing chiller plant and AHUs enabled Winsland House II to lower energy consumption and meet Green Mark 2021 GoldPLUS certification standards without costly replacements.
Contact us at sales@aircondnetwork.com.sg for further enquiries!
This project’s success was made possible with the support of Wing Tai Holdings Limited and Building System and Diagnostics Pte Ltd.
