The test results indicate that the proposed test protocol can capture different characteristics in the performance of the different systems except for the NTP units, which showed a poor performance throughout the study. [...] The performance of PCO air cleaning depends on the light source type and intensity, properties of photocatalyst, the properties of the PCO reactor, challenge compounds and concentrations, and airstream characteristics like temperature, humidity level, air velocity, and mixing, and so on (Haghighat, Haghighat, & Lee, 2017). [...] However, the installation of the catalyst in the downstream of the plasma (PPC) is more efficient, since the generated reactive species in the plasma zone participate in oxidation reactions in the catalyst zone, leading to better mineralization reactions (Chen et al., 2009; Van Durme, Dewulf, Sysman, Leys, & Van Langenhove, 2007b). [...] The presence of the catalysts increases the probability of surface reactions between the reactants and reactive species, which leads to more selective reactions and higher removal efficiency of the system. [...] In fact, the storage material capacity increases the reaction time as well as the probability of collision between the VOCs compounds and reactive species on the surface of the catalyst (Chen et al., 2009).
- Pages
- 137
- Published in
- Canada
