Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Biodiesel (2)
- Energy (2)
- Ventilation (2)
- Animal transport (1)
- Compost (1)
-
- Concrete (1)
- Dehumidification (1)
- Density (1)
- FTIR (1)
- Filtration (1)
- Fluid (1)
- Grain bin (1)
- Granular (1)
- Greenhouse (1)
- HPLC (1)
- Humidity control (1)
- Internal object (1)
- Janssen's equation (1)
- Liquid Dairy Manure (1)
- Method (1)
- Moisture (1)
- Obstructions (1)
- Pavement (1)
- Permeability (1)
- Porosity (1)
- Related apparatus (1)
- Sensing characteristic (1)
- Silo (1)
- System (1)
- Tracer gas (1)
Articles 1 - 9 of 9
Full-Text Articles in Entire DC Network
Hydrologic Properties Of Pervious Concrete, Joe D. Luck, Stephen R. Workman, Stephen F. Higgins, Mark S. Coyne
Hydrologic Properties Of Pervious Concrete, Joe D. Luck, Stephen R. Workman, Stephen F. Higgins, Mark S. Coyne
Plant and Soil Sciences Faculty Publications
Pervious concrete is concrete made by eliminating most or all of the fine aggregate (sand) in the concrete mix, which allows interconnected void spaces to be formed in the hardened product. These interconnected void spaces allow the concrete to transmit water at relatively high rates. The main objective of this project was to conduct research on the potential application of pervious concrete in agricultural settings, specifically for use in animal feed lots, manure storage pads, animal manure and bedding compost facilities, or floor systems in animal buildings. Laboratory tests were conducted on replicated samples of pervious concrete formed from two …
Managing Liquid Dairy Manure, José R. Bicudo
Managing Liquid Dairy Manure, José R. Bicudo
Agricultural Engineering Extension Publications
One of the primary issues in the dairy production industry is the storage, management, and land application of manure. Producers should plan how and when to apply manure to agricultural land to minimize the risk of water pollution and odor nuisance and maximize nutrient use.
System And Method For Sensing A Characteristic Of A Fluid And Related Apparatus, Frederick Payne
System And Method For Sensing A Characteristic Of A Fluid And Related Apparatus, Frederick Payne
Biosystems and Agricultural Engineering Faculty Patents
An apparatus for intended use in measuring, sensing, or detecting a characteristic of a fluid, such as a liquid food product, is disclosed. The apparatus includes a body having a pocket for positioning adjacent to the opening in a pipe or like structure for receiving a portion of a fluid therein. In one possible use, a first optical medium, such as an optical fiber, transmits light from a source toward a portion of the fluid flow entering the pocket. Light received by one or more optical mediums positioned in backscatter, sidescatter, or transmission configurations relative to the first optical medium …
Development And Testing Of A Low-Cost Condensation Detection System, Michael D. Montross, George A. Duncan, Richard S. Gates
Development And Testing Of A Low-Cost Condensation Detection System, Michael D. Montross, George A. Duncan, Richard S. Gates
Biosystems and Agricultural Engineering Faculty Publications
A condensation sensing and control system was designed to detect condensation using a commercially available leaf wetness sensor (LWS). The leaf wetness sensor was a variable resistance grid-type that responded to moisture on the surface. A circuit was developed to compare the LWS voltage output to a user specified reference voltage, and operate a relay for possible switching of a humidity control device (for example a fan and/or heater). The condensation detection system operation was validated in an environmental chamber in the laboratory using a heat exchanger and water bath. Condensate was immediately detected when the plate was cooled below …
Evaluation Of Fourier Transform Infrared Spectroscopy Measurements Of Glucose And Xylose In Biomass Hydrolyzate, Czarena L. Crofcheck, Michael D. Montross
Evaluation Of Fourier Transform Infrared Spectroscopy Measurements Of Glucose And Xylose In Biomass Hydrolyzate, Czarena L. Crofcheck, Michael D. Montross
Biosystems and Agricultural Engineering Faculty Publications
Measurement of sugars using traditional spectroscopic (UV/Vis) assays or high performance liquid chromatography (HPLC) can be time consuming and expensive. Alternative methods for measuring sugars after enzymatic hydrolysis of biomass would be convenient for screening potential biomass feedstocks and pretreatment methods. Fourier transform infrared spectroscopy (FTIR) has been utilized for measuring composition of various aqueous solutions and is evaluated here as an alternative to UV/Vis and HPLC assays. Solutions of glucose and xylose with concentrations between 0 and 1.5% w/v (total sugar content between 0 and 3.0% w/v) were used to build calibration curves for all three methods. A validation …
Biodiesel Faq, Timothy S. Stombaugh, Czarena L. Crofcheck, Michael D. Montross
Biodiesel Faq, Timothy S. Stombaugh, Czarena L. Crofcheck, Michael D. Montross
Agricultural Engineering Extension Publications
Biodiesel and other alternative fuels continue to gain popularity as petroleum fuel prices rise and we become more concerned about our environment. Introduction of these fuels raises many questions about actually using them in current equipment. The purpose of this factsheet is to address some of the common questions asked by those considering the use of biodiesel in existing diesel equipment.
Biodiesel Basics, Czarena L. Crofcheck, Timothy S. Stombaugh, Michael D. Montross
Biodiesel Basics, Czarena L. Crofcheck, Timothy S. Stombaugh, Michael D. Montross
Agricultural Engineering Extension Publications
Biodiesel is a renewable fuel for diesel engines. Biodiesel, defined by ASTM International (D6751), consists of longchain fatty acid alkyl esters and is made from renewable vegetable oils, recycled cooking oils, or animal fats. It can be used at full strength, but it is typically blended with petroleum diesel. A blend of 2 percent biodiesel and 98 percent diesel is referred to as B2. Other typical blends include B5, B10, and B20; pure biodiesel is sometimes referred to as B100. Biodiesel is safer for the environment and produces significantly less air pollution compared to petroleum diesel. Biodiesel can be produced …
Vertical Loads Due To Wheat On Obstructions Located On The Floor Of A Model Bin, Marek Molenda, Michael D. Montross, Sidney A. Thompson, Jozef Horabik
Vertical Loads Due To Wheat On Obstructions Located On The Floor Of A Model Bin, Marek Molenda, Michael D. Montross, Sidney A. Thompson, Jozef Horabik
Biosystems and Agricultural Engineering Faculty Publications
Tests were conducted in a model grain bin to evaluate the vertical loads acting on differently shaped obstructions embedded in wheat during filling, detention, and discharge. The bin had corrugated galvanized steel walls with a 1.83 m diameter and a flat bottom. All tests were conducted in a bin that was centrically loaded and unloaded. Three differently shaped obstructions (disc, cone, and cylinder) were tested; each had a circular base equivalent to 6% of the bin floor area. The obstructions were supported in the bin using a three-legged support structure. Each leg of the support structure rested on a load …
Air Exchange Rate In A Horse Trailer During Road Transport, Joseph L. Purswell, Richard S. Gates, Laurie M. Lawrence, Jamey D. Jacob, Timothy S. Stombaugh, Robert J. Coleman
Air Exchange Rate In A Horse Trailer During Road Transport, Joseph L. Purswell, Richard S. Gates, Laurie M. Lawrence, Jamey D. Jacob, Timothy S. Stombaugh, Robert J. Coleman
Biosystems and Agricultural Engineering Faculty Publications
Horses traveling by road commonly experience heat stress conditions and poor air quality, which may be caused by insufficient ventilation; however, there are few estimates of air exchange in a horse trailer during transport. Air exchange rate was measured at ten locations within a four-horse trailer (internal volume 18.5 m3) using tracer gas decay measurement to assess the adequacy of ventilation. Three vehicle speeds (13, 48, and 97 km h-1) and three window configurations (all windows and roof vents closed, all windows open, all windows open and roof vents open forward) were tested with and without …