Numerical evaluation on floor cooling capacity in an airport

In the modern architectural design, large space open area is widely used, for example, atrium, airport, open office, etc. Radiation heat transfer provides better indoor thermal comfort and makes it possible to apply high temperature cooling and low temperature heating. This will lead to high energy efficiency. Water carrying radiation systems, e.g. cooling ceiling and floor heating system, become an applicable solution for a good indoor climate design. The floor cooling is less effective than floor heating and can provide usually limited cooling capacity. In order to make a good design of floor cooling system, a theoretic method is described and the numerical evaluation of the cooling capacity is done. The influence parameters for the capacity, for example the distance between pipes, the length of one loop, the water flow rate and the supply water temperature, etc, have been analysed. It can be used for the correct estimation during the design phase.