Pre-print of Ruggieri, Luz et al. «Performance of different systems for the composting of the source-selected organic fraction of municipal solid waste» in Biosystems Engineering (Elsevier), Vol. AbstractPerformance of three pile composting systems at field-scale were studied and compared in the composting of source-selected organic fraction of municipal solid waste (OFMSW): turned pile, static forced-aerated pile and turned forced-aerated pile.Routine parameters such as temperature, oxygen content, moisture and porosity were monitored. Temperature was found to be higher in turned systems whereas oxygen content was higher in forced-aerated systems. Although the initial air filled porosity for all mixtures was high, around 70%, the material tended to compact in the static system.