THE USE OF A NEW HEAT REMOVAL SYSTEM M SPACE THERMIONIC POWER SUPPLIES

Joint Research Centre

Description

B3R 2229.e EUROPEAN ATOMIC ENERGY COMMUNITY - EURATOM THE USE OF A NEW HEAT REMOVAL SYSTEM M SPACE THERMIONIC POWER SUPPLIES by G.M. GROV¿.< (LOS ALAMOS SCIENTIFIC LABORATORY) J. BOHDANSKY, CA. BUSSE (EURATOM) 1965 Joint Nuclear Research Center ' Ispra Establishment · Italy Direct Conversion Jarvlce CONTENTS Introduction 5 Maximum Heat Transfer 6 Use in Space Supplies δ Conclusion 9 References 10 THE USE OF A NEW HEAT REMOVAL SYSTEM IN SPACE THERMIONIC POWER SUPPLIES Introduction In reference (ï), there are described structurée of high__ thermal conductance^ which ¿re called '"neat pipes". These systems take advantage of the latent heat of evaporation to transfer heat with minimal temperature drop. The liquid-vapor-liquid circulation loop is closed by using the liquid flow in capillary channels to return the condensate to the evaporator. In general, the structure consists of a tube of sufficient cross ¿ection to allow the desired amount,of vapor to flow from the evaporator to the condenser with an optimum pressure drop. The actual size of the vapor tube must of course be consistent with the volume restrictions of the complete system. The vapor tube is lined with a capillary structure of relatively fine mesh. The material of which this structure is composed must be such that it is "wet" by the liquid phase of the circulating fluid at the operating temperature.

Sujets

• Sciences et techniques

Informations

• Publié par: JOINT-RESEARCH-CENTRE
• Nombre de lectures: 10
• Langue: English

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