23 March 2006

Year round ice hotel chilled by hot spring water

A double lift absorption chiller (“ThermoChiller”) was installed in the Aurora Ice Museum at Chena
Hot Springs, Alaska. The ThermoChiller runs on locally available 75.5 °C hot spring water, and
provides 4.26 kW of –28.8 °C chilling. The ThermoChiller successfully kept the Ice Museum frozen
year round, and thus allowed summer visitors to experience winter amenities at the resort. The ThermoChiller
was custom designed to deliver very cold chilling from a low temperature heat source, by
using a double lift ammonia absorption cycle. The Chena Ice Museum is the only such structure in
the world to remain frozen year round.