Optimal synthesis of energy supply systems for remote open pit mines

摘要: Abstract The primary motivation underlying the proposal of polygeneration systems for mine sites is to increase efficient use natural resources by combining different technologies and energy while satisfying service demands. For many mineral producers, particularly in Canada's mining extremes climate depth, support production can be second largest cost center after labor. A generic methodology proposed design supply sites, based on a search minimum discounted supplied all feasible plant configurations. These configurations represented within connectivity matrix which corresponds network representation. Mixed Integer Programming formulation set out multiperiod synthesis operational planning problem. This characterized i) binary variables selection technologies, ii) integer determination number units installed, iii) continuous representation economic flows. Through integration particular strategies matching specific circumstances (on-grid, remote, degree days, etc) consideration that improve efficiency, hitherto not considered new demand management or perspectives optimal site investigated. Some these investigations identify conditions through biomass feedstocks should used, direct heat production, gasification providing Fischer–Tropsch syndiesel manufacture. As well as integrating from mobile diesel-fueled into an optimization procedure this analysis shows how techniques used explore threshold prices (purpose-grown peat are herein) trucked-in diesel. also allows electricity syngas storage diesel bunkering. Within paper demands open pit operation located Northern Ontario case study illustrate technique investigations. expected, mines close electricity, gas, distribution infrastructures, choice connect. When constraint applied specifying connection possible, would exemplified, includes some more exotic options supply.