Abstract:
A heat transfer system is disclosed that includes a heat transfer fluid circulation loop, and also a heat exchanger that includes an aluminum alloy exterior surface having thereon a top surface coat derived from a composition comprising a trivalent chromium salt and an alkali metal hexafluorozirconate.
Abstract:
A method is provided for manufacturing a manifold assembly with internal fluid communication between a first manifold defining a first fluid chamber and a second manifold defining a second fluid chamber of the manifold assembly, the first manifold and the second manifold joined in parallel relationship along a longitudinally extending interface between a wall of the first manifold and a wall of the second manifold. The method includes: forming a first access port in a wall of one of the first manifold and the second manifold diametrically opposite the interface; forming a first fluid communication port extending through a wall of the first manifold and a wall of the second manifold at the interface and defining a first fluid passage between the first and second fluid chambers; and sealingly plugging the access port.
Abstract:
A heat transfer system is disclosed that includes a heat transfer fluid circulation loop, and also a heat exchanger that includes an aluminum alloy exterior surface having thereon a top surface coat derived from a composition comprising a trivalent chromium salt and an alkali metal hexafluorozirconate.
Abstract:
A method is provided for manufacturing a manifold assembly with internal fluid communication between a first manifold defining a first fluid chamber and a second manifold defining a second fluid chamber of the manifold assembly, the first manifold and the second manifold joined in parallel relationship along a longitudinally extending interface between a wall of the first manifold and a wall of the second manifold. The method includes: forming a first access port in a wall of one of the first manifold and the second manifold diametrically opposite the interface; forming a first fluid communication port extending through a wall of the first manifold and a wall of the second manifold at the interface and defining a first fluid passage between the first and second fluid chambers; and sealingly plugging the access port.
Abstract:
A multiple bank, flattened tube heat exchange unit includes a first tube bank including a plurality of flattened tube segments extending longitudinally in spaced parallel relationship between a first manifold and a second manifold and a second tube bank including a plurality of flattened tube segments extending longitudinally in spaced parallel relationship between a first manifold and a second manifold, the second tube bank disposed behind the first tube bank. The second manifold of the first tube bank and the second manifold of the second tube bank form a manifold assembly wherein an interior volume of the second manifold of the first tube bank and an interior volume of the second manifold of the second tube bank of the manifold assembly are internally connected in fluid communication.
Abstract:
An air-cooled chiller system includes a heat exchanger including a first tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship; a second tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship, the second tube bank disposed behind the first tube bank with a leading edge of the second tube bank spaced from a trailing edge of the first tube bank; a fan creating an airflow across the first heat exchanger, the airflow flowing over the first tube bank prior to flowing over the second tube bank, wherein refrigerant flows in the heat exchanger in a cross-counterflow direction opposite that of the airflow direction.
Abstract:
A multiple bank, flattened tube heat exchange unit includes a first tube bank including a plurality of flattened tube segments extending longitudinally in spaced parallel relationship between a first manifold and a second manifold and a second tube bank including a plurality of flattened tube segments extending longitudinally in spaced parallel relationship between a first manifold and a second manifold, the second tube bank disposed behind the first tube bank. The second manifold of the first tube bank and the second manifold of the second tube bank form a manifold assembly wherein an interior volume of the second manifold of the first tube bank and an interior volume of the second manifold of the second tube bank of the manifold assembly are internally connected in fluid communication.
Abstract:
An air-cooled chiller system includes a heat exchanger including a first tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship; a second tube bank including at least a first and a second flattened tube segments extending longitudinally in spaced parallel relationship, the second tube bank disposed behind the first tube bank with a leading edge of the second tube bank spaced from a trailing edge of the first tube bank; a fan creating an airflow across the first heat exchanger, the airflow flowing over the first tube bank prior to flowing over the second tube bank, wherein refrigerant flows in the heat exchanger in a cross-counterflow direction opposite that of the airflow direction.
Abstract:
A heat transfer system is disclosed that includes a heat transfer fluid circulation loop, and also a heat exchanger that includes an aluminum alloy exterior surface having thereon a top surface coat derived from a composition comprising a trivalent chromium salt and an alkali metal hexafluorozirconate.
Abstract:
A multiple bank, flattened tube heat exchange unit includes a first tube bank including a plurality of flattened tube segments extending longitudinally in spaced parallel relationship and a second tube bank including a plurality of flattened tube segments extending longitudinally in spaced parallel relationship, the second tube bank disposed behind the first tube bank at a desired spacing gap. A first plurality of folded fins is disposed between respective adjacent pairs of the heat exchange tube segments of the first tube bank and a second plurality of folded fins disposed between respective adjacent pairs of the heat exchange tube segments of the second tube bank.