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Full-Text Articles in Engineering

Using Electricity Consumption To Estimate Water Volumes Pumped From Wells, Charles M. Burt May 2017

Using Electricity Consumption To Estimate Water Volumes Pumped From Wells, Charles M. Burt

BioResource and Agricultural Engineering

The Sustainable Groundwater Management Act (SGMA) of California has led some organizations to want access to documentation of the volumes of groundwater pumped by individual wells. Many well pumps already have flow meters installed that provide an accurate measurement of both instantaneous flow rate and the cumulative volume pumped. For wells that do not have flow meters, it has been proposed for many years that pumped volumes can be accurately estimated by simply using the total power consumption, measured in kilowatt-hours (kWh).


Towards A Cost-Effective Biorefinery : Production Of Activated Carbons From Residual Biomass For Energy Storage Devices., Zachary Dean Herde Apr 2017

Towards A Cost-Effective Biorefinery : Production Of Activated Carbons From Residual Biomass For Energy Storage Devices., Zachary Dean Herde

Electronic Theses and Dissertations

Biomass processing for industrial products and biofuels has gained an increasing presence as society looks to using sustainable resources for manufacturing and renewable fuels for energy. However, these sustainably produced materials and products cannot gain a competitive edge because of the manufacturing expenses that are a result of high process temperatures and pressures. In order to lower these costs, theoretical modeling has described a value-added co-product strategy as one of the best ways to combat high bioprocessing prices. Biomass has been shown to make effective carbons for energy storage devices such as supercapacitors and batteries. These carbons, with the right …


Relative Cross Track Error Calculations In Asabe/Iso 12188-2:2012 And Power/Energy Analysis Using A 20 Hp Tractor On A Fully Electric Drivetrain, Joseph D. Rounsaville Jan 2017

Relative Cross Track Error Calculations In Asabe/Iso 12188-2:2012 And Power/Energy Analysis Using A 20 Hp Tractor On A Fully Electric Drivetrain, Joseph D. Rounsaville

Theses and Dissertations--Biosystems and Agricultural Engineering

ASABE/ISO Standard 12188-2 provides test procedures for positioning and guidance systems in agricultural vehicles during straight and level travel. The standard provides excellent descriptions of test procedures, however it does not provide detail on methods to carry out the calculations necessary to calculate relative cross-track error (XTE), which is the primary measurement used to judge accuracy of the system. The standard was used to estimate the guidance accuracy of a relatively low-accuracy vehicle at 1.25 and 0.5 m s-1. At 1.25 m s-1, a nearest point calculation overestimated mean XTE by 0.8 cm, or 8.2%. The …