Carbon dioxide (CO2) is not new to refrigeration systems. Alexander Twining proposed using CO2 as a refrigerant in a British patent granted him in 1850. Thaddeus S.C. Lowe, perhaps best known for his ...
The suction line of a refrigeration system is normally insulated with a flexible, closed-cell elastomeric material. Wall thicknesses vary between 3/8- and 1-inch. Medium-temperature systems generally ...