Air Cleaning by Photo Catalytic Oxidation: An Experimental Performance Test
Kadribegovic, R; Ekberg, L; Gilligan, A; Shi, B; ASHRAE
| HERO ID | 1591007 |
|---|---|
| In Press | No |
| Year | 2011 |
| Title | Air Cleaning by Photo Catalytic Oxidation: An Experimental Performance Test |
| Authors | Kadribegovic, R; Ekberg, L; Gilligan, A; Shi, B; ASHRAE |
| Journal | ASHRAE Transactions |
| Volume | 117 |
| Page Numbers | 426-433 |
| Abstract | The paper presents the results from an experimental evaluation of a novel air cleaner based on UVC radiation at 253.7 nm in combination with a titanium dioxide (TiO(2)) catalytic converter. The wavelength of the UV light is selected with the purpose of enhancing the capability of the device to deactivate micro-organisms. Furthermore, the selected UV-wavelength is expected not to cause any substantial generation of ozone. <br> <br>The air cleaner, denoted PCOC3, consists of three photo catalytic oxidation (PCO) chambers connected in series. The device is equipped with a pre-filter for removal of airborne particles (MERV 11). The air cleaner is intended for in-duct use, i.e. integration in central ventilation systems. <br> <br>In a subset of the experiments ozone was generated by an electrical spark generator placed upstream of the tested air cleaner and measured downstream by a direct reading instrument based on UV-spectroscopy. In another subset of experiments selected VOCs were injected into the test-rig and the decay was measured after the VOC injection had been stopped. <br> <br>The measurements showed no signs of any ozone being generated by the PCOC3. Instead the results indicate that ozone is captured by the device at a removal rate corresponding to 67 air changes per hour in the test-rig used, which, in turn corresponds to a single pass efficiency of about 15%. <br> <br>Also the studied VOCs were found to be removed by the PCOC3, but at substantially lower rates; in the range of a few air changes per hour only. |
| Wosid | WOS:000295933900052 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000295933900052 |
| Is Public | Yes |