Auxiliary mine ventilation model to assess capital and operational costs for various duct and fan combinations. (2015-01-15) This dataset is identical to the one deposited at https://zone.biblio.laurentian.ca/dspace/handle/10219/2301 on January 15, 2015. The DOI for this dataset was originally registered with DataCite Canada. Scholars Portal adopted the DOI prefix on July 29, 2019 and the dataset was deposited in Scholars Portal Dataverse to facilitate ongoing stewardship of the DOI and of the dataset.