Page 17 - ISCC'22
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October 11-13,
                                      50 YOUNG PROFESSIONAL
                                   2022                                                   Antalya TURKIYE  |  2022

        Figure 5; Left side: recirculation mode of the system. Right side: rail-guided Mainte-
        nance CAPE

        To ensure that the various industrial and company specific requirements are always
        met, the CAPE-system is continually being further developed and individually adapted.
        This has led to the development of further CAPE-embodiments within the last few years.

        3.1 Test centre application - to establish a reference environment for evaluating
        the efficiency of air cleaning devices in relation to SARS-CoV-2.
        Can ventilation and air cleaning systems protect against Covid-19? How must they be
        designed for this purpose? And how must hygiene and ventilation concepts be designed
        to reduce virus transmission through aerosols? Answers to these questions were to be     CAPE –
        provided by the research team around the Stuttgart Fraunhofer Institute IPA in a test    FLEXIBLE,
        and consulting centre for healthy indoor air. Within the framework of the Healthy Air
        Initiative, small and medium-sized enterprises are to be helped in the implementation of   PORTABLE,
        ventilation concepts to prevent the spread of the coronavirus in manufacturing plants    CLEANROOM
        or even public facilities. But first it was a matter of finding suitable premises.       SYSTEM
        In order to be able to test and compare the air cleaning technologies, the scientists
        designed two representative test environments: A facility of the size of a factory hall
        and a small office as a workplace. One challenge was to represent the sheer size of
        such a facility in a scenario. Another was that the room had to have the appropriate
        ventilation, air-conditioning and cleanliness technology. It also had to be able to be de-
        contaminated from a biological-virological point of view and also in terms of its particle
        concentration. And finally, such a clean test environment had to be put into operation
        in the shortest possible time.
        Such a test room was not available. What the cleanroom experts did have in stock,
        however, was a CAPE system that they had originally developed for the aerospace
        industry. Without further ado, a lecture hall that had been closed due to the pandemic
        was converted into a reference test room (see figure 6).

        Figure 6; Temporary conversion of a lecture hall into a cleanliness controlled test
        centre for a period of nine months
        It thus ideally corresponded to the scenario of the workplace of a factory hall and, with
        a few additional conversions, also fitted exactly into the available lecture hall. After two
        days of setting up the system, the test environment was finally ready. Three quarters
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