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October 11-13,
                                      50 YOUNG PROFESSIONAL
                                   2022                                                   Antalya TURKIYE  |  2022

        In general, a cape is a sleeveless, preferably light cloak   Abstract:
        for protection against wind and weather. 5000 years     As mechanical and electronic components be-
        ago it was made of grass, around 350 BC of fur, today   come eversmaller, processes and products in many
        of textile and synthetic materials: space-saving to pack,   branches of industry are becoming more and more
        easy to unfold when needed and quick to put on.
                                                                sensitive to environmental conditions. Air cleanliness
        The scientists at Fraunhofer IPA also thought of such a   is an especially important factor. To reduce quality
        protection system when they designed a mobile clean-
        room together with an aerospace company in 2015.        problems caused by airborne particles, companies
        This was intended to provide additional protection for   in various high-tech sectors – such as the semi-
        highly sensitive hardware in a cleanroom with a high    conductor, aerospace or pharmaceutical industry
        cleanliness class. The idea was to create a separate    – have transferred contamination-critical production
        cleanroom environment in the cleanroom using a mobile
        and quickly installed, self-sufficient system. Based on   and assembly processes to cleanrooms from the
        this need, a mobile cleanroom was first developed that   very beginning. However, due to the lengthy plan-
        allows users to enclose hardware in an area of about    ning and implementation times, the large amount
        four by four metres in just over an hour. The »Clean And   of space required, and the prolonged occupancy of
        Protective Environment« (CAPE) provides temporary
        protection from particulate and molecular and, more     production areas, fixed cleanrooms are not always
        recently, even biological contamination, during product   the best solution.
        inspections or cleaning processes, during new installa-
        tions in the cleanroom or during routine maintenance    The CAPE-system (Clean And Protective Environ-
        and repairs. However, completely different applications
        are also conceivable: as a mobile operating theatre,    ment) developed by Fraunhofer IPA scientists is
        as a quarantine room in pandemics to protect fellow     a tent-like cleanroom system that can be used to
        humans and the environment from contamination, as       create a cleanroom environment cost-effectively,
        a maintenance system in the semiconductor industry      quickly and flexibly. Similar air cleanliness classes to
        or as a test centre to evaluate the efficiency of room
        air purification systems during the Corona pandemic.    those in high-quality, conventional cleanrooms are
                                                                achievable, but its lightweight textile construction
        DEVELOPMENT OF »CAPE«                                   makes it much more versatile. Each system is tailored
        The aerospace industry creates innovative and highly    to requirements and customer specific cleanliness
        technical systems that are exposed to extreme require-  needs.
        ments in airspace as well as in outer space. This also
        places extreme demands on the quality, performance
        and, above all, reliability of the systems. The motto
        “Failure is not an option” is no verbiage in this industry segment, but has absolute priority. Most of these extremely
        high-bred systems have equally high demands on cleanliness, absence of contamination and cleanability. Since
        these aerospace systems are usually only produced in very small quantities, sometimes as one-offs, the estab-
        lished cleanroom solutions do not always meet the specific cleanliness requirements of these one-offs for the
        aviation and aerospace industry.
        In order to be able to react to these rapidly changing requirements in terms of the usable cleanroom area, variable
        cleanroom heights, cleanliness specifications, temperature and humidity conditions, realisable surfaces and air
        cleanliness classes within a few months, weeks or even days, the need for a flexible cleanroom system that can
        be quickly set up and dismantled was brought to the attention of the scientists of Fraunhofer IPA. The cleanroom
        systems to be developed should be usable for a limited period of time at any weather-protected location, usually
        in a classic industrial hall environment.

        The main requirements for the system are as follows:
        f   high range in terms of air cleanliness
        f   weight-optimized lightweight system
        f   cost-saving system (investment and operating costs, maintenance)
        f   small pack size
        f   fast assembly/disassembly
        f   modularity
        In the initial conception phase, we borrowed from the field of camping tents (see figure 1, upper section of the
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