ShareUse of all-aluminum coils increasing
All-aluminum heat exchanger coils called microchannel coils have been used in the automotive industry for over 20 years, but the technology – which uses an all-aluminium brazed fin construction – has been applied to the HVAC&R industry only from around 2008.
For years, copper tubes with aluminum fins have been the typical choice for condensing coils for HVAC&R equipment. However, due to soaring copper prices manufacturers have recently begun looking at adopting aluminum tubes as a way to reduce costs.
All-aluminum heat exchanger coils called microchannel coils have been used in the automotive industry for over 20 years, but the technology – which uses an all-aluminium brazed fin construction – has been applied to the HVAC&R industry only from around 2008.
According to Luvata, a heat transfer coil manufacturer, microchannels coils have the following features: higher efficiency over conventional coils, less required refrigerant charge, easier to recycle since only one type of metal (aluminum) is used, corrode more slowly than two-metal (Cu/Al) coils.
JARN, April 25, 2014
All-aluminum heat exchanger coils called microchannel coils have been used in the automotive industry for over 20 years, but the technology – which uses an all-aluminium brazed fin construction – has been applied to the HVAC&R industry only from around 2008.
According to Luvata, a heat transfer coil manufacturer, microchannels coils have the following features: higher efficiency over conventional coils, less required refrigerant charge, easier to recycle since only one type of metal (aluminum) is used, corrode more slowly than two-metal (Cu/Al) coils.
JARN, April 25, 2014