Problem: What is the net annual savings if the sawdust is burned? Given: A large furniture plant develops 10 tons of sawdust (6,000 Btu/ton) per day that is presently hauled to the landfill for disposal at a cost of $10/ton. The sawdust could be burned in a boiler to develop steam for plant use. The steam is presently supplied by a natural gas boiler operating at 78% efficiency. Natural gas costs $5/MMBtu. Sawdust handling and in-process storage costs for the proposed system would be $3/ton. Maintenance of the equipment will cost an estimated $10,000 per year. The plant operates 250 days/yr.

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Problem: What is the net annual savings if the sawdust is burned? Given: A large furniture plant develops 10 tons of sawdust (6,000 Btu/ton) per day that is presently hauled to the landfill for disposal at a cost of $10/ton. The sawdust could be burned in a boiler to develop steam for plant use. The steam is presently supplied by a natural gas boiler operating at 78% efficiency. Natural gas costs $5/MMBtu. Sawdust handling and in-process storage costs for the proposed system would be $3/ton. Maintenance of the equipment will cost an estimated $10,000 per year. The plant operates 250 days/yr.

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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