Heat exchange – Tubular structure
Patent
1985-06-20
1987-09-01
Davis, Jr., Albert W.
Heat exchange
Tubular structure
165184, 138 38, F28F 100
Patent
active
046902112
ABSTRACT:
A heat transfer tube for single-phase flow having rows of discontinuous projections formed on the inner surface thereof along one or more spiral curves. Each projection has a circular, elliptic or a similar cross-section constituted by smooth curves at any desired height including the bottom thereof. The cross-sectional area of the projection progessively decreases towards the top of the projection.
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Kuwahara Heikichi
Nakayama Wataru
Oizumi Kiyoshi
Sugimoto Shigeo
Takahashi Kenji
Davis Jr. Albert W.
Hitachi , Ltd.
Hitachi Cable Ltd.
Neils Peggy
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