Over time there was an increasing need to be able to cool some buildings. And even if the ventilation main aim has always been to remove pollutants, it has long been used also for cooling. In the 1800s, supply air was cooled either by being sprayed with water or by passing it through the ice block near the air intakes. Ice industry was very big at that time, such as Norway had a significant ice fleet of ships which delivered the winter ice to many countries, not least to the United States which had a large number of buildings where refrigeration was required. One of them was the Madison Square Theater in New York, which used no less than 4 tons of ice per show per night.
September 18, 2015