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Case Study - Offices and Institutions

Triumphal Apartments

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THE SPECIFICS

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THE SPECIFICS

Building Summary

  • Four high-rise residential apartment buildings.
  • Total construction area of 59,000 square meters with 438 apartments.

Systems Installed:

  • Two Trane 805 kW Model RTHD chillers with heat recovery capability.
  • One Trane 1160 kW Model RTHD chiller with heat recovery capability.
  • Each Trane chiller is equipped with a microprocessor control panel for interface to the apartment complex building automation system.

Thermal Storage Provides Comfort, Efficiency

Triumphal Apartments is located in Putuo District, Shanghai, People’s Republic of China.

Challenge

Triumphal Apartments covers about 20,000 square meters with total construction area of 59,000 square meters in four high-rise apartment buildings of 22 floors each. Shanghai summers are very warm - more than 40 percent of electricity use is for air conditioning. With rising electricity rates the apartments needed effective, efficient air conditioning.

Solution

Trane’s Shanghai office helped the construction team design a central air conditioning system using Trane chillers and ice storage. The chillers run at night, when temperatures are cooler and electric rates are lower, to generate ice stored in large tanks. When the tanks are full and before daytime electric rates go into effect, the chillers are shut off. As daytime temperature and apartment cooling load increases, water is circulated through the ice tanks and apartments, providing efficient air conditioning.

Results

The use of ice storage and off-peak electricity in a residential application such as Triumphal Apartments is unique, but is proving to be a very efficient and effective means of providing air conditioning. Even during peak summer temperatures, the apartments remain at less than 80 degrees F (26 C).

Gan Bao Rong, property engineering manager, said, “I am impressed by how effective ice storage systems are in conserving energy and helping protect our environment. Our customers stay cool, we save energy, cost is low and we enjoy a better environment. Now everyone is happy.”

The Trane chillers also recover rejected heat and use it to generate hot water for the apartments—saving more energy. Thanks in part to these energy saving strategies, the value per square meter at Triumphal Apartments has increased by nearly 30 percent.

Another example of how Trane’s world-renowned expertise met a difficult challenge with the right solution. From integrated comfort systems to systems management and climate controls, Trane ensures that your building environment is right so you can run your business better.

About Triumphal Apartments

Developed by Shanghai Zhongying Real Estate Developer Ltd., Triumphal Apartments is a high-end luxury apartment complex with average apartment size of 79 to 130 square meters.

Each apartment is well decorated and has 24-hour air conditioning and hot water service with a separate fresh air exchange system in each apartment. The project was completed in August, 2005.

“Our customers stay cool, we save energy, cost is low and we enjoy a better environment. Now everyone is happy.”
— Gan Bao Rong,
property engineering manager.