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Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Fuel Consumption Models For Tractors With Partial Drawbar Loads, Bryan Jeffrey Smith
Fuel Consumption Models For Tractors With Partial Drawbar Loads, Bryan Jeffrey Smith
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
Three models for predicting fuel consumption for agricultural tractors with partial drawbar loads were compared. Data were collected from eight John Deere tractors, JD 7230R (e23), 7250R (e23), 7270R (e23), 7290R (e23), 7290R (IVT), 8320R (16 speed), 8345RT (IVT), 8370R (IVT). The tractors were tested with 7 load levels per speed at four different travel speeds as close as possible to 4, 7.5, 10, and 13 km·h-1. The IVT tractors were operated in Auto mode and the geared tractors were shifted up three gears and throttled back to the same travel speeds as the IVT tractors. The 7 …
Modified Atmosphere Packaging: A Progressive Technology For Shelf-Life Extension Of Fruits And Vegetables, Mahmoud Soltani, Reza Alimardani, Hossein Mobli, Seyed Saeid Mohtasebi
Modified Atmosphere Packaging: A Progressive Technology For Shelf-Life Extension Of Fruits And Vegetables, Mahmoud Soltani, Reza Alimardani, Hossein Mobli, Seyed Saeid Mohtasebi
Journal of Applied Packaging Research
Packaging and storage are the final phases in the food industry. Quality preservation, improving safety and reduction of postharvest losses waste are some objectives of the packaging engineering. One of techniques that widely used in packaging of fruits and vegetables are modified atmosphere packaging (MAP). In MAP for fresh fruits and vegetable the air of packaging headspace replaces with a predetermined atmospheric gases different in proportion from that of air. Oxygen, carbon dioxide and nitrogen are the main gases used in MAP for injection to the headspace of pack. The choice and ratio of gases are very dependent upon the …
Eight Principles Of Uncertainty For Life Cycle Assessment Of Biofuel Systems, Adam J. Liska
Eight Principles Of Uncertainty For Life Cycle Assessment Of Biofuel Systems, Adam J. Liska
Adam Liska Papers
New environmental regulations in the USA and Europe require a reduction of greenhouse gas (GHG) emissions from transportation fuels as a component of climate change mitigation policy. The US Energy Independence and Security Act of 2007 (EISA) requires GHG emission reductions from the life cycles of biofuels compared to gasoline, by 20% for ethanol from maize grain (maize-ethanol), 60% for cellulosic ethanol, and 50% for other advanced biofuels. To determine these reductions, the US Environmental Protection Agency (EPA) employs life cycle assessment (LCA) methods which were not used previously in national environmental regulations. These regulations, entitled the “Renewable Fuel Standard …
Development Of A Row-Crop Tractor Data Acquisition System, James Roeber, Santosh Pitla, Roger M. Hoy, Joe D. Luck
Development Of A Row-Crop Tractor Data Acquisition System, James Roeber, Santosh Pitla, Roger M. Hoy, Joe D. Luck
Department of Biological Systems Engineering: Conference Presentations and White Papers
Numerous advancements in machinery performance on row-crop agricultural tractors have been made in recent years. Currently, the Organisation for Economic Co-operation and Development (OECD) only tests predetermined points (E.g., max. power, max. torque) for drawbar and hydraulic power. This method of testing has been used for many years with the tractor at a steady state which is usually not typical of row-crop operations. A data acquisition system (DAQ) was designed that records implement energy consumption (E.g., drawbar loading, PTO power, and hydraulic power). The system used a LabVIEW program and a compact data acquisition system (cDAQ) to record data from …