Patent ID: 6364008
Filing Date: 2002-04-02
Classification: F28D,F28F,Y10S

Abstract:
A heat exchanger comprising thermoplastic tubes having outside and inside surfaces within which tubes flows primary heat transfer fluid and outside of which tubes flows secondary heat transfer fluid, said tubes being adhered together in groups of at least four pairs of tubes each, each group having two faces, and a multiplicity of said groups being arranged in parallel rows with openings between the rows to permit flow of secondary heat transfer fluid along or across said faces, said faces being configured to minimize laminar flow, to increase turbulent flow of said secondary fluid as it passes over said plates, and to minimize the formation of vortices, with the tubes in each group being arranged in a continuous wavy shape with each pair of tubes in each group being at an angle to the adjacent pair of tubes in the same group, measured by connecting lines between the centers of adjacent tubes, between 5 and 30 degrees and with the cumulative angle increasing from tube to tube for at least four pairs of tubes, then reversing.