EP 0114640 B1 19880302 - FINNED HEAT EXCHANGER TUBE HAVING OPTIMIZED HEAT TRANSFER CHARACTERISTICS
Title (en)
FINNED HEAT EXCHANGER TUBE HAVING OPTIMIZED HEAT TRANSFER CHARACTERISTICS
Publication
Application
Priority
US 46078483 A 19830125
Abstract (en)
[origin: EP0114640A2] A metal heat exchanger tube which provides for optimized heat transfer characteristics and which is particularly adapted for use in the direct expansion shell and tube type evaporators of mechanical refrigeration systems. The metal heat exchanger tube incorporates integral external and internal fins wherein the dimensional and geometrical proportions of the surface or heat transfer areas of the external and internal fins and the cross-sectional flow area of the heat exchanger tube, in conjunction with the lead angle of the internal helical fins have been correlated in conformance with predetermined mathematical criteria in order to optimize the heat transfer capacities of the tubes, particularly when the tubes are to be employed in direct expansion evaporator of mechanical refrigeration systems.
IPC 1-7
IPC 8 full level
F28F 1/42 (2006.01)
CPC (source: EP)
F28F 1/42 (2013.01); F28F 1/422 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0114640 A2 19840801; EP 0114640 A3 19840815; EP 0114640 B1 19880302; DE 3469591 D1 19880407
DOCDB simple family (application)
EP 84100427 A 19840117; DE 3469591 T 19840117