Airbus Defence and Space Cleanroom Case Study

Table of Contents

The Brief
The Solution
On Site
In Operation
Recommendations
References

The Brief

Clean Environments was approached by Airbus Defense and Space to design and develop an ISO 5 cleanroom with ultra-low outgassing that would decrease magnetic contamination and be electrostatic dispersant, all within a very short time frame.

The European Space Agency provided funding for the Solar Orbiter satellite mission. The satellite was built by Airbus Defense and Space at its ISO 8 cleanroom. An ISO 14644-1 class 5 cleanroom was needed to provide protection for the sensitive instrumentation engineered for the Solar Orbiter during the crucial assembly, integration, and testing program.


The Solar Orbiter (Image credit: Clean Environments)

The project program had been pre-defined and Clean Environments was asked to create the clean environment within eight weeks of the order so as to meet the assembly timetable. Another important element was to deliver with as minimal disruption to the ISO 8 cleanroom as possible.

In addition, the clean environment had to be portable to allow other ESA partners to benefit from the investment.

The Solution

To fulfill this task, Clean Environments used its solid walled cleanroom system, Clean Cube. All the elements of the Clean Cube have been chosen to improve its flexibility.

The frame was constructed using extruded aluminum section. This can be constructed quickly, reducing site costs and disruption. It can be demounted for re-siting and can also be reconfigured.

Clean Environments chooses the frame wall infill material from a wide range of sub-straights, ensuring selection of the material that is perfectly suited to the application. Using the structural T grid ceiling enables the fan filter and lighting units to be easily moved and repositioned to accomodate any alterations to the process layout.

The adjustable exhaust panels offer the user full control to balance the room. This gives owners the extra advantage of boosting or lowering the ISO classification level, making it very versatile.

On Site

The Solar Orbiter Clean Cube was built to be delivered as a whole shell which could be taken on site and placed into position in the ISO 8 cleanroom within a day. Following installation, a small team then populated the ceiling grid, glazed the wall panels, and started the cleanup.

The Clean Cube was ready for testing within 10 days of arriving on site. It effectively passed all of the customer’s outgas, electrostatic, and electro-magnetic testing.

Clean Environments conducted as built and at rest, flow and particulate monitoring. The results from Clean Environments tests and those successively taken in operation by Airbus Defense and Space revealed that the Clean Cube consistently surpassed the ISO 14644-1 class 5 stipulations.

In Operation

The Solar Orbiter satellite is scheduled for launch by NASA in 2018 to explore the Sun’s heliosphere and study it in unparalleled detail in an attempt to decipher the secrets of the solar wind.

It will travel to the Sun at about 62 solar radius or 42 million km, a distance which is further than any spacecraft has ever achieved. From this vantage point, the satellite is perfectly positioned to study the Sun’s heliosphere at an extraordinary resolution (70 km/pixel) and analyze it in great detail.

The Solar Orbiter will also gather imagery and data from the Sun’s polar regions and on the side not visible from the Earth. The main objective of these measurements will be to establish the underlying processes that trigger the solar wind, the stream of particles endlessly escaping from the Sun.

To accomplish this goal, the Solar Orbiter will integrate in-situ measurements in the direct environment of the satellite with remote-sensing observations.

Recommendations

We have instruments that are highly sensitive to contamination which could affect their capabilities and performance in space. The Clean Cube was selected as it provides the high levels of cleanliness required and its flexible design allows it to be re-sited for future programs, as required. Thanks to you all in the Moorfield Team.

Lester Waugh, Airbus Defence and Space

References

To see details of The European Space Agency’s Solar Orbiter satellite.

http://sci.esa.int/solar-orbiter/

This information has been sourced, reviewed and adapted from materials provided by Clean Environments.

For more information on this source, please visit Clean Environments.

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