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July 2020 / 19 exclusively in the bulk materials handling field, both as a bulk mate- rials equipment handling supplier and a consultant. Colin Barbeau, P. Eng. (colin. barbeau@hatch.com, 438-806-4298, www.hatch.com) is the Eastern North America bulk material han- dling engineer lead for Hatch, based in Montreal, QC. He graduated from Ecole Polytechnique de Montreal with a bachelor's degree in materi- als engineering. He has more than 13 years of experience working pneumatic conveying system and mechanical conveying system are shown in Figure 4. The case study 2 CAPEX estimates for both mechanical and pneumatic sys- tems come in below the case study 1 CAPEX estimates by approx- imately $200,000 and $100,000 respectively, but the mechanical system CAPEX is still greater. However, the case study 2 OPEX estimates are level for the two systems with the pneumatic OPEX estimate dropping by approx- imately $100,000. Under these altered conditions, the NPC esti- mate in case study 2 makes a much stronger argument for the pneu- matic option as the cost between the two is obviously greater. PBE Author's note: This column was primarily written by guest author Colin Barbeau, who specializes in comparative assessments of differ- ent conveying system types. For further reading Find more information on this topic in articles listed under "Mechanical con- veying" and "Pneumatic conveying" in Powder and Bulk Engineering's article index in the December 2019 issue or the article archive on PBE's website, www.powderbulk.com. Jack D. Hilbert, PE (pcchilbert@ gmail.com, 610-657-5286) is an expert bulk solids pneumatic conveying consultant for Hatch in Schnecksville, PA. Prior to that, he was the principal consultant for Pneumatic Conveying Consultants. He holds a BS and MS in mechanical engineering from Penn State Univer- sity, State College, PA. He has more than 45 years of experience in the application, design, detailed engi- neering, installation, and operation of pneumatic conveying systems. A TOUGH ACT TO FOLLOW O R T H M A N C O N V E Y I N G SYS T E M S O R T H M A N . C O M • L E X I N G T O N , N E B R A S K A • 8 7 7 . 6 6 4 . 2 6 8 7