TheBasicsof AIR-COOLEDHEATEXCHANGERS - Chart …

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The Basics of AIR-COOLED HEAT EXCHANGERS. HUDSON. Products Corporation A Subsidiary of Hudson Products Holdings, Inc. CONTENTS. Page FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .i NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii I. DESCRIPTION OF AIR-COOLED HEAT EXCHANGERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1. Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1. Tube Bundle.

LMTD = log mean temperature difference °F M=mass flow rate lb/hr mw = minimum wall thickness in n=tubes per row, per foot of exchanger width l/ft N=rows of tubes in direction of air flow Dimensionless NRe = Reynolds Number Dimensionless Ntu = number of heat transfer units Dimensionless OD = outside diameter of tube ft

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