Korean Development Bank (Korea)

A Bank Saves Money Using an STL

Korean Development Bank

 This office building, occupied by the Korean Development Bank (KDB), is located in the Yoido island in the business centre of Seoul (South Korea) close to the parliament. It is the computer centre for Korean and overseas activities.
For this strategic building, the KDB chose the latest technologies having the highest performances. The KDB decided to install a Cristopia Thermal Energy Storage System (STL) to shave nearly 50% of the cooling demand and to secure the system operation.

In addition to the technical advantages (back-up, maintenance reduced, higher efficiency and reliability) the KDB was very keen on operating cost savings.

Technical Data

Daily Cooling Energy Consumption : 18 132 kWh
Maximum Cooling Demand : 1 948 kW
Energy Stored : 10 100 kWh
Store Type : STL - C -184
Storage Temperature : 0°C
Nodule Type : C - 00
Number of Tanks : 4
Tank Diameter : 3.6 m
Tank Length : 5 m

Characteristics

The STL is composed of four 46 m³ horizontal tanks for a total storage of 10 100 kWh. This represents 55% of the daily cooling consumption allowing the benefit of KEPCO (Korean Electricity Power Co.) incentive. Two 566 kW chillers with reciprocating compressors are used in direct production and in charge mode.
The control and energy management are achieved by a sophisticated BMS (Building Management System) to ensure the highest running cost savings.

Technical Advantages

Smaller chiller capacity (reduced by 47%)
Smaller cooling towers
Simplified servicing
Back-up at disposal
Reduced electrical installation

Projects Credits

Customer: Korean Development Bank
Consultant: Consultant & Engineering Co Woowon Corp.
Installing Company: Dong III Commerce & Co. Engineering Department

 

 

If a bank has chosen the STL,
it cannot be for technical
advantages only!

Financial Advantages

Lower initial investment
KEPCO (Korean Electricity Power Co.) incentive for energy shifting
High saving on electricity costs (energy cost and demand charge)

Environmental Advantages

Use of refrigerant reduced (ozone layer protection)
Emission of CO2, SO2 and N2O reduced due to off peak consumption (greenhouse effect)