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Miniature Wire Heat Pipes: Study of the Processes of Fluid Dynamics in Microgravity (WMHP)
04.26.13

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Overview | Description | Applications | Operations | Results | Publications | Imagery

Experiment Overview

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Brief Summary

MHP (Miniature Wire Heat Transfer Tube) a fluid mechanics test of 3 mini heat pipes with water at different pressures.

Principal Investigator(s)

Information Pending

Co-Investigator(s)/Collaborator(s)

Information Pending

Developer(s)
Information Pending

Sponsoring Space Agency

Russian Federal Space Agency (Roscosmos)

Sponsoring Organization

Information Pending

Research Benefits

Information Pending

ISS Expedition Duration

April 2006 - September 2006

Expeditions Assigned

13

Previous ISS Missions

Information Pending

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Experiment Description

Research Overview

Information Pending

Description

To study the processes of fluid dynamics in microgravity conditions.

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Applications

Space Applications

Information Pending

Earth Applications

Information Pending

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Operations

Operational Requirements

Tests of functioning of small-size heat pipes filled with distilled water. Assessment of the coolant efficiency.

Operational Protocols

The equipment consists of a single unit, which accommodates two heat pipes and a data acquisition system. Distilled water in amount of 50 and 60 ml is used as a coolant. Each miniature heat pipe is divided in length to three different parts: an evaporator (20 mm), an adiabatic section (50 mm) and a capacitor (30 mm).

The heat is transferred to the evaporator by an electric heater attached with the use of thermal grease. The heat is removed from the capacitor through a copper radiator and two cooling fans. The heat is supplied to the system gradually with the use of an electric heater through a miniature heat pipe. The system functioning will be verified under seven different modes at power levels from 5 W to 35 W. To control the temperature variation along the heat pipe, three thermocouples are attached at its surface (Omega T-type), one of which has a direct contact with the data acquisition board. The rest thermocouples are accommodated on the heat distributor and insulation. All data is stored on the memory map, which is returned to the ground upon the experiment completion.

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Results/More Information

Information on miniature heat pipe operation recorded on the memory map.

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Related Websites
  • Energia - Science Research on the ISS Russian Segment

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    Imagery

    image Kit with MHP equipment consisting of Block MHP and MHP memory map (in cover).
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    Information provided by the investigation team to the ISS Program Scientist's Office.
    If updates are needed to the summary please contact JSC-ISS-Program-Science-Group. For other general questions regarding space station research and technology, please feel free to call our help line at 281-244-6187 or e-mail at JSC-ISS-Research-Helpline.
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