This is one of three fuel cell power plants that produced electrical power for a space shuttle orbiter. They were located under the payload bay floor in the mid-fuselage behind the crew compartment. The fuel cell transformed hydrogen and oxygen into electricity in the top (power) section, and the accessory section at the bottom monitored the chemical reaction and temperature of the unit and also removed heat and water produced by the process. The water was stored in tanks for use by the onboard environmental control and life support system and the crew.

NASA transferred this extra orbiter fuel cell to the Museum in 2012 when the space shuttle program ended. Three other fuel cells remain installed inside the orbiter Discovery, on display at the Museum’s Steven F. Udvar-Hazy Center.

Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

Object Details

Country of Origin

United States of America

Type

EQUIPMENT-Power Sources

Manufacturer

UTC Power

Dimensions

Approximate (Fuel Cell): 40.6 × 40.6 × 123.2cm (1 ft. 4 in. × 1 ft. 4 in. × 4 ft. 1/2 in.)
3-D (Barrel): 120.6 × 174cm (3 ft. 11 1/2 in. × 5 ft. 8 1/2 in.)
Approximate (Barrel, Printed on Container): 603.3kg (1330lb.)
Approximate (Fuel Cell): 35.6 × 38.1 × 101.6 × 30.5cm, 115.7kg (1 ft. 2 in. × 1 ft. 3 in. × 3 ft. 4 in. × 1 ft., 255lb.)

Materials

HAZMAT: Cadmium Plating
Unknown Contents (May Contain Freon 21 and Potassium Hydroxide)
Ferrous Alloy
Wood
Paint
Plastic
Uncharacterized Foam
Adhesive Tape
Rubber
Paper
Ink
Glass
Adhesive

Inventory Number

A20181719000

Credit Line

Transferred from the National Aeronautics and Space Administration

Data Source

National Air and Space Museum

Restrictions & Rights

Usage conditions apply
For more information, visit the Smithsonians Terms of Use.