Visible length and thermal radiation of WCO biodiesel and ethanol pool fires

Reduced Combustion Mechanism for Fire with Light Alcohols

“…Then, the reduced mechanisms obtained in the present work we mented into FDS for the evaluation of the pool fire scenarios, guaranteeing the of detailed chemistry in CFD. Indeed, the size of the original version of the adopte mechanism did not allow for its use in CFD because of the required computation The obtained estimations were compared with the so-called single-step reaction a included in the database of FDS (referred to as single-step chemistry from now the experimental data retrieved from the current literature [36,37]. These expe works were chosen for the sake of validation due to the convenience of the bound ditions (e.g., the similar and small diameter of the pan) and the similarity of the m properties (e.g., the temperature distribution and mass burning rate).…”

“…From the combination of the information collected so far, the reduced mechanisms of methanol and ethanol containing 19 reactions and 20 reactions, respectively, with their rate coefficients are provided in Tables 2 and 3. For the sake of evaluating the resulting skeletal model, the laminar burning velocity predicted by the initial version of the mechanism published by Sarathy et al [30] (detailed mechanism) and the version obtained in this work (reduced mechanism) were compared with the experimental data reported in the literature [36,37]. To limit the effects of systematic errors, the results from different experimental apparatus were considered at this stage.…”

“…The reported accuracy of the reduced mechanism allowed for its implementation in CFD models. Thus, to better understand the pool fire behavior of oxygenated biofuels, the numerical study of methanol and ethanol with the help of single-step chemistry and a reduced mechanism were evaluated against the experimental results reported in the literature [36,37]. To this aim, the burning rate, radiative heat flux, and heat release rate were considered under atmospheric conditions, and the results are shown in Table 5.…”

“…These experimental works were chosen for the sake of validation due to the convenience of the boundary conditions (e.g., the similar and small diameter of the pan) and the similarity of the measured properties (e.g., the temperature distribution and mass burning rate). The main boundary conditions were selected under the experimental conditions reported in the literature (Table 1) [36,37].…”

“…The main boundary conditions implemented in this work, selected to mimic exp data retrieved in the literature[36,37].…”