liquid nitrogen

Ice Rink has Installed New CO2-Ammonium Hydroxide System

CO2-ammonia ice rink installed in Sweden Ammonia21, June 29, 2017 The T3 Center – an ice hockey arena that hosts Swedish 2nd division team Björklöven in Umeå, northern Sweden – has retrofitted its ammonia refrigeration system with a CO2-ammonium hydroxide system. The existing ammonia system was retrofitted with “ammonium hydroxide [as the secondary refrigerant, which] […]

Stockholm fossil fuel free

Stockholm Maps Their Way to Becoming Fossil Fuel-Free

Stockholm Wants To Ditch Fossil Fuels By 2050 Triple Pundit, February 25, 2016. Image credit: mariannakrarup0 Clean transportation and energy must expand What is Stockholm doing to achieve its environmental goals? The simple answer is plenty. Transportation is a key element of the city’s plans. Many Stockholm residents drive what Vision 2030 describes as “clean vehicles,” […]