Preliminary burning tests on PVC fires with water mist

The effect of water mist on a small-scale solid fuel PVC (Poly Vinyl Chloride) fire in a confined space has been studied experimentally with the heat release rate measured by the oxygen consumption method. The water mist was generated by a single pressure nozzle. The LDV/APV system was employed to determine the water mist characteristics. The Cone Calorimeter was used to measure the heat release rate, oxygen and carbon monoxide concentrations and other important parameters of the interaction under various conditions. The results indicate that suppression plays a dominating role and re-ignition can be prevented when water mists of sufficient volume flux are applied to the solid PVC fires.