A set of micro-channel heat exchanger has about 50 to 150 micro-channel aluminum tubes, as long as one airtightness defects (such as air holes, inclusions, etc.), the whole air conditioner will be scrapped, so the quality standard is measured in PPM (1 million pieces), and the measurement standard is
The aluminum micro channel tube has refrigerant medium inside and atmospheric corrosion outside, which is easy to leak due to point corrosion. A thin layer of zinc must be sprayed on its outer surface to protect the tube wall from corrosion.
Microchannel Aluminum Tubes - Aluminum Microchannel The aluminum microchannel tubes MPE tubes (also known as " parallel flow aluminum flat tube ") is a kind of thin-walled porous flat tube material, which is made of refined aluminum rod, hot extrusion, zinc spraying and anti-corrosion treatment. The aluminum micro channel tube has refrigerant medium inside and atmospheric corrosion outside, which is easy to leak due to point corrosion.
Microchannel Coating. The Micro Channel Heat Exchanger (MCHE) development originates from the automotive industry where it has been used since more than twenty years now. They have however only recently been introduced to the HVAC&R industry. Some of the big advantages are that they are lighter, more efficient and they lower the required refrigerant volume.
Microchannel Heat Exchangers Dunham BushJun 29, 2021 · Dunham-Bush first introduced the microchannel heat exchanger into ACHX-B models. Since then, microchannel condenser is available in all newer generation of ACHX series. Microchannel is an all-aluminum coil made out of multiple flat tubes containing small channels (microchannel) metallurgically brazed with louvered fin.
In 2006, Carrier was the first to introduce microchannel (MCHE) technology in the Commercial Air Conditioning industry. MCHE heat exchangers are entirely made of aluminum. Since 2011, a new generation of microchannel is available:NOVATION ® microchannel. Superior corrosion resistance, due to one-piece material construction
Parallel Flow Aluminum Tubes - Microchannel TubesParallel flow aluminum tubes (also known as "aluminum alloy porous aluminum micro channel tubes ") is a kind of thin-walled porous flat tube material, which is mainly used to make parallel flow heat exchanger (also known as "microchannel heat exchanger" or "parallel flow microchannel heat exchanger") in various new environmental protection refrigerant air conditioning systems, It is a new type of environmental
The microchannel tubes in the heat exchanger have excellent heat transfer characteristics on the refrigerant side. On the air side, heat transfer is improved due to the enhanced surface area contact and the metallurgical bond between tube and fin. Fin design is optimized to enhance the fin heat transfer
Microchannel Heat Exchangers KaltraOne of the biggest factors of the growing popularity of microchannel heat exchangers is the high corrosion resistance of aluminum, which is achievable through the careful selection of aluminum alloys, surface treatments, and other protective measures.