Text Box: RADIATORS MODULE © Water & Airside Fundamentals, Selection & Failure Modes ISBN 0-9720927-3-0 TTS Catalog No. 104 List price $ 19.95 US NOTE: This is a training module extracted from “The Engine Cooling System” and/or “Engine Coolants” It DOES NOT provide information in addition to that contained in this book. Text Box: RADIATORS is intended to provide understanding of the construction, functional heat transfer aspects of the water and airside flows, selection considerations, corrosion, fluid flow rates, air and water side resistance characteristics, etc. It is intended for practicing OEM test and development engineers, cooling system and radiator shop service technicians, personal reference and self-improvement. It is NOT a manufacturing guide. The materials are easy to read, with 64 fully illustrated pages with 79 graphs, illustrations and photographs. TABLE OF CONTENTS Heat rejection to the coolant for the range of engine speeds and loads Engine heat rejection curves Heat exchanger basic concepts Heat transfer in the water and airsides Heat balance Radiator design configurations, metals Thermal and physical properties of the water and airsides Air to coolant temperature differentials, inlet temperature differential Waterside considerations: Coolant viscosity, boundary layer, onset of turbulent flow Turbulence vs. heat transfer vs. erosion potential Effect of tube flow area, length and inlet configuration on resistance and heat transfer efficiency Pressure drop in the radiator tubes and tanks Flow distribution in the tube array, effect on erosion, corrosion and pump cavitation Airside considerations: Airside viscosity, boundary layer, turbulence vs. heat transfer Design considerations of the tube and fin Air flow rate and velocity, resistance, fin pitch, tube spacing, louvers, dimples Airflow velocity and temperature distribution of the installed radiator Effect of A/C condenser for system restriction and pre-heating of the inlet air Velocity and temperature distributions Waterside performance considerations Flow rate and velocity, resistance, flow distribution in the tube array Radiator characterization, charts Calorimeter testing Failure modes Liquid erosion Internal / external electrochemical corrosion Mechanical failure modes Corrosion inhibition mechanisms, formulations, depletion rates