In Chillventa 2018 HKT will as well focus on NH3-and R723-applications with open type Goeldner-Compressors.
Beside pure ammonia R723, a mixture made of the natural refrigerants ammonia and dimethyl ether, is one of the most efficient refrigerants easily applicable at present.
Already in 2011 the KTH Royal Institute of Technology in Stockholm got the Eurammon-Award related to their studies on a small ammonia heat pump. The prototype built is equipped with the smallest ammonia compressor on market supplied from HKT, type O 12 1/NH3.
The open type 2- and 4-cylinder Goeldner-Compressor series, in a spectrum of 6-95 m3/h stroke volume is given free and available for NH3 since 1993 and for R723 since 1998.
In 2000 HKT manufactured the first R723-chiller for production cooling at the family owned facility.
This means having best experience on that topic for two decades.