On the basis of a 600 MW indirect air cooling unit

an experimental system for large-scale air-cooing tower was designed by means of the similarity principles

with a proportion of 1to 30.This system consists of modeling air cooling tower

air cooling modeling radiator

heat load power control system and data collection system.During the experiment

the heat load can be regulated by the control system

according to the parameters' value and experimental purpose.The calculation shows the measurement error of heat transfer coefficient of this experimental system is less than 20%.Through this system

the flow and heat transfer characteristics at inside and outside of the dry-cooling tower under various environmental conditions can be measured.Moreover

the correlations of flow and heat transfer of air-cooled heat exchanger and the off-design performance of the indirect dry cooling system can be obtained.The hot plume recirculation flows

anti-freezing in winter and the thermo-hydraulic performances for stack and tower integration design can be investigated using this experimental system.The design principle

basic parameters and measuring errors were analyzed.