A macadamia farm consortium is consulting you possible use of the macadamia shell waste they produce...
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A macadamia farm consortium is consulting you possible use of the macadamia shell waste they produce to generate renewable electricity. The consortium produces 5000 tonnes per year of nut shells, at 40% moisture, all of which are expected to be burned to produce electricity. The nut shells have a LCV of 22 MJ/kg on an oven-dry basis, however they are available for combustion after drying at 20% moisture. The nut shells are to be burned in a steam boiler which is 90% efficient in converting the heat of combustion into an enthalpy rise in the steam. The steam then proposed to be passed through a turbine. The turbine is expected to be 25% efficient (steam enthalpy rise to electricity). The heat of vaporisation of water is 2.45 MJ/kg. How much electrical energy is expected to be generated in MWh per year? One possible correct answer is: 4010.15625 The turbine is expected to run 70% of the time (i.e. almost continuously during the harvesting months of April to November). Assuming the turbine is sized exactly to meet requirements, how should it be sized in terms of its output power in MW? One possible correct answer is: 0.65397199119374 A macadamia farm consortium is consulting you possible use of the macadamia shell waste they produce to generate renewable electricity. The consortium produces 5000 tonnes per year of nut shells, at 40% moisture, all of which are expected to be burned to produce electricity. The nut shells have a LCV of 22 MJ/kg on an oven-dry basis, however they are available for combustion after drying at 20% moisture. The nut shells are to be burned in a steam boiler which is 90% efficient in converting the heat of combustion into an enthalpy rise in the steam. The steam then proposed to be passed through a turbine. The turbine is expected to be 25% efficient (steam enthalpy rise to electricity). The heat of vaporisation of water is 2.45 MJ/kg. How much electrical energy is expected to be generated in MWh per year? One possible correct answer is: 4010.15625 The turbine is expected to run 70% of the time (i.e. almost continuously during the harvesting months of April to November). Assuming the turbine is sized exactly to meet requirements, how should it be sized in terms of its output power in MW? One possible correct answer is: 0.65397199119374
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Related Book For
International Marketing And Export Management
ISBN: 9781292016924
8th Edition
Authors: Gerald Albaum , Alexander Josiassen , Edwin Duerr
Posted Date:
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