|ENERGY SERIES: What about Landscaping and Energy Efficiency?||Jul 7, 2014||BSE-145NP|
|Rainwater Harvesting Systems||May 9, 2014||BSE-116NP|
|Using Reclaimed Water||Apr 30, 2014||BSE-115NP|
|Greywater Reuse||Apr 30, 2014||BSE-114NP|
|Living Well Newsletter, Volume 9, Issue 1||Aug 8, 2013||FCS-46P|
|Living Well Newsletter, Volume 7, Issue 1||Apr 23, 2013||370-107|
|Predicting Tractor Diesel Fuel Consumption||
Ability to predict tractor fuel consumption is very useful
|Oct 14, 2014||442-073 (BSE-175P)|
|ENERGY SERIES: What is the Whole-House Systems Approach to Energy Efficiency?||Jul 7, 2014||2908-9025 (BSE-136NP)|
|ENERGY SERIES: What about Ventilation?||Jul 7, 2014||2908-9024 (BSE-135NP)|
|ENERGY SERIES: What about the Roof?||Jul 2, 2014||2908-9023 (BSE-134NP)|
|ENERGY SERIES: What about Refrigerators and Freezers?||Jul 2, 2014||2908-9022 (BSE-143NP)|
|ENERGY SERIES: What about Radiant Barriers?||Jul 7, 2014||2908-9021 (BSE-138NP)|
|ENERGY SERIES:What about Moisture?||Jul 2, 2014||2908-9020 (BSE-133NP)|
|ENERGY SERIES:What about House Design and Room Location?||Jul 1, 2014||2908-9019 (BSE-132NP)|
|ENERGY SERIES: What about Dishwashers?||Jul 1, 2014||2908-9018 (BSE-131NP)|
|ENERGY SERIES: What about Caulking and Weather-Stripping?||Jul 1, 2014||2908-9017 (BSE-130NP)|
|ENERGY SERIES: What about Appliances?||Jun 26, 2014||2908-9015 (BSE-128NP)|
|ENERGY SERIES: Estimating Appliance and Home Electronic Energy Use||
If you're trying to decide whether to invest in a more energy-efficient appliance or if you'd like to determine your electricity loads, you may want to estimate appliance energy consumption.
|Jun 26, 2014||2901-9014 (BSE-137NP)|
|ENERGY SERIES: What Does the Shape of the House Have to Do With Energy Efficiency?||
In a home, heat energy is transferred among all materials and substances that are of different temperatures—within the building materials, inside the building itself, and outside the building envelope. The term “building envelope” refers to all of the external building materials, windows, and walls that enclose the internal space. Heat moves only when there is a difference in temperature, and it always moves from the warm side to the cool side. Heat will continue to “flow” until any touching materials reach the same temperature. However, we usually want the inside of a home to have a different temperature from the outside.
|Jun 26, 2014||2901-9013 (BSE-127NP)|
|ENERGY SERIES: What Can Builders Do to Help Prevent Moisture Problems in New Construction?||
Buildings should be designed and built to provide comfortable and healthy levels of relative humidity. They should also prevent both liquid water from migrating through building components and water vapor from being trapped in building assemblies, like walls.
|Jun 26, 2014||2901-9012 (BSE-126NP)|
|ENERGY SERIES: What Are the Differences Between Mobile and Modular Homes?||
Mobile and modular homes are factory-built and generally differ in how much of the construction occurs at the factory. The greater the work at the factory, the less labor is needed where the home will be located.
|Jun 26, 2014||2901-9011 (BSE-125NP)|
|ENERGY SERIES: What about Windows?||Jun 30, 2014||2901-9010 (BSE-124NP)|
|ENERGY SERIES: What about the Water Heater?||
Heating water is the third largest energy expense in your home, after heating and cooling the entire space; and, it can account for 15-25% of your utility bill. It’s not hard to see why a family of four, each taking a 5-minute shower a day under inefficient showerheads, can use 700 gallons of water in a week representing a 3-year supply of drinking water for one person! There are several ways to cut down the amount you spend on heating water: a) insulate your water heater and pipes; b) reduce the amount of hot water you use; and c) turn down the thermostat on your water heater.
|Jun 26, 2014||2901-9009 (BSE-123NP)|
|ENERGY SERIES: What about Mold?||
Mold has received a lot of attention of late because of high profile lawsuits and television news broadcasts that have highlighted the potential hazards and liabilities associated with indoor mold. What is mold? Molds, along with mildews, yeasts, and mushrooms, all belong to the kingdom fungi. Fungi are unicellular or multicellular organisms that primarily use absorption as a means to obtain energy from their environment, unlike green plants, which use chlorophyll to obtain energy from sunlight. The term “mold” describes unwanted visible fungal growth. “Mildew” is fungi that grows on fabrics or that causes plant disease. The term “yeast” is fungi that are unicellular when cultured.
|Jun 26, 2014||2901-9008 (BSE-122NP)|
|ENERGY SERIES: What about the Laundry Area?||
The laundry room can be a big consumer of energy—more than 1,000 kilowatt-hours (kWh) a year—and water—and a big producer of unwanted heat and humidity in the summer. It makes good sense to think about both the location and the appliances in it if you want to run an energy-efficient laundry. And there are new washers and dryers on the market now that make it easier than ever to do so.
|Jun 9, 2014||2901-9007 (BSE-121NP)|
|ENERGY SERIES: What about Insulation?||
Insulation is rated in terms of thermal resistance, called R-value, which indicates the resistance to heat flow. Although insulation can slow heat flow—conduction, convection and radiation—its greatest impact is on conduction.
|Jun 10, 2014||2901-9006 (BSE-120NP)|
|ENERGY SERIES: What about the Heating System?||
The efficiency of a gas (natural or propane) or oil furnace is measured by the Annual Fuel Utilization Efficiency (AFUE), which describes the heat produced from the energy used. This rating takes into consideration losses from pilot lights, start-up, and stopping. For example, a furnace with an AFUE rating of 80 converts 80% of the fuel it burns into usable heat. New furnaces usually rate in the mid-70s to low 80s, whereas older furnaces will be in the 50s or 60s. ENERGY STAR® qualified oil and gas furnaces have annual fuel utilization efficiency (AFUE) ratings of 83% and 90%, or higher, making them up to 15% more efficient than standard models. Unlike the Seasonal Energy Efficiency Ratio (SEER) and Heating Season Performance Factor (HSPF) ratings, the AFUE does not consider the unit’s electricity use for fans and blowers.
|Jun 9, 2014||2901-9005 (BSE-119NP)|
|ENERGY SERIES: What About the Ductwork?||
Air distribution or duct systems are designed to supply rooms with air that is “conditioned”—that is, heated or cooled by the heating, ventilation, and air conditioning (HVAC) equipment—and to recirculate or return the same volume of air back to the HVAC equipment. Your duct system has two main air transfer systems: 1) supply, and 2) return. The supply side delivers the conditioned air to the home through individual room registers. The return side picks up inside air and delivers it to the air handler of your central system where heat and moisture are either removed or added and then delivered to the supply side. All of the air drawn into the return duct(s) is conditioned and should be delivered back through the supply registers.
|Jun 9, 2014||2901-9003 (BSE-118NP)|
|ENERGY SERIES: What About Using Ceiling Fans?||
Can Ceiling Fans Lower My Utility Bill?
Ceiling fans create a breeze, so room occupants feel cooler and more comfortable. With a ceiling fan running, you can raise the thermostat setting by 2 to 4 degrees during the cooling season with no reduction in comfort. Increasing the room temperature by even two degrees can cut your cooling costs 4 to 6%.
|Jun 9, 2014||2901-9002 (BSE-117NP)|
|ENERGY SERIES: What about the Air Conditioning System?||
As you begin the process of selecting the most efficient air conditioning system for your home, investigate the critical issues of system size, placement, installation, and contractor experience. Your goal is to obtain an efficient system by: sizing the system for the specific cooling load of your home; selecting and properly installing the thermostats or controls; designing a ductwork system to deliver the correct amount of conditioned air to each space; and sealing and insulating all ductwork.
|Jun 9, 2014||2901-9001 (BSE-142NP)|
|Using the Energy Resource Guide for Virginia||
Energy is one of the hottest topics being discussed among Virginians. Whether it is the cost of fuel or how to reduce our consumption of an energy source, we are all searching for new ideas.
|May 1, 2009||354-501|
|Conserving Energy with Landscaping||
Winter winds increase the rate of air exchange between the interior and exterior of a house, lowering the house’s interior temperature and thereby increasing the heating demand. In a windy site, a windbreak planting (also called a shelterbelt) can account for up to a 50-percent wind reduction and up to a 25-percent reduction in heating fuel consumption. A windbreak is a single or multiple rows of trees or shrubs in a linear configuration.
|May 1, 2009||426-712|
|Small-Scale Biodiesel Production: Safety, Fuel Quality, and Waste Disposal Considerations||
Biodiesel is a cleaner-burning, renewable fuel that is a feasible alternative to fossil-based diesel fuel. Largely due to historically high energy prices, concerns over the environmental impact of fossil fuel, and a desire for energy independence, citizens of Virginia have become increasingly interested in renewable alternative fuels, including biodiesel fuel. A previous Virginia Cooperative Extension publication (see Biodiesel Fuel under References) discusses the basics of biodiesel fuel, including terminology, engine compatibility, engine warranty, biodiesel storage, fuel performance, cold temperature concerns, and emissions. This publication addresses producing one’s own biodiesel fuel from waste oil, fats, and oilseed crops. Currently, there are many small-scale biodiesel producers (ranging in size from several gallons to several hundred gallons per batch). There are significant safety considerations when operating small-scale processors. In addition, the fuel quality and the by-product disposal need to be closely monitored to assure engines are not damaged and regulations are met. The purpose of this document is to address safety, fuel quality, and waste disposal related to small-scale production. We present a general discussion of these issues based on a case study of four small-scale biodiesel processors conducted cooperatively by James Madison University (JMU), Virginia Tech (VT), the Virginia Clean Cities Collation, and Blue Ridge Clean Fuels Inc.
|May 1, 2009||442-885|
As energy prices reach historic highs, there is a broad interest across the state in utilizing and producing renewable bioenergy from domestic agricultural products. Nationwide, it is expected that a 20 percent replacement of petroleum usage will happen over the next ten years. This is equivalent to 35 billion gallons of alternative fuel use by 2017, with fuel ethanol playing an important role in this transition. Fuel ethanol can be blended with gasoline (from 10 percent to 85 percent), and thus reduce the amount of gasoline used. In the United States, corn kernels are commonly used for producing fuel ethanol, and thus reduce the nation’s dependence on foreign oils. The purpose of this publication is to introduce the basics of fuel ethanol and answer questions regarding fuel ethanol.
|May 1, 2009||442-884|
|“Gear Up and Throttle Down” to Save Fuel||
“Gear-up and throttle-down” (GUTD) is a fuel-saving practice that can be used for saving fuel when drawbar loads are lighter (<75 percent of rated power) and PTO (power takeoff) speed can be reduced.
|Oct 9, 2014||442-450 (BSE-177P)|
|Standby Electric Generators for Emergency Farm Use||
An emergency source of power is essential for any farm with mechanically ventilated production facilities, bulk milk-handling equipment, automated feeding systems, or facilities requiring constant and consistent heat or refrigeration. A standby power generator is an excellent investment to prevent costly losses during local power failures. This publication provides guidelines to make the selection, sizing, and operation of standby generators easier.
|May 1, 2009||442-067|
This publication provides a general overview of anaerobic digestion and the current status of biomethane technology on livestock farms in the United States. It is part of the Bioenergy Engineering Education Program (BEEP) of the Biological Systems Engineering Department at Virginia Tech. Most of the discussion uses dairy manure as an example of feedstock for an anaerobic digester. Resources which provide more detailed information on anaerobic digesters are listed.
|May 1, 2009||442-881|
Biodiesel is a renewable fuel that can be made from vegetable oil, animal fat, and recycled cooking oils. Oils produced from algae, fungi, bacteria, molds, and yeast can also be used to produce biodiesel.
|Jan 14, 2015||442-880 (BSE-180P)|