greenhouse heating Articles

  • Greenhouse packs a power punch

    Closed loop system utilizes gasification, algae ponds and anaerobic digestion to convert wood waste to a variety of products, including biofuel, biogas and a soil amendment. MICHAEL Smith is supervising the first commercial-scale Green Power House at the F.H. Stoltze Land and Lumber Co. near Columbia Falls, Montana. Smith, a physicist, has designed a system to take waste products and turn them ...


    By BioCycle Magazine

  • Wireless Greenhouse Monitoring and Control

    CAS DataLoggers Provides the Intelligent Automated Solution A fruit crop experiment station needed to remotely monitor and control its climate systems in a number of greenhouses.  The proposed system needed to monitor soil moisture content and temperature and actively control irrigation and airflow by opening and closing windows to ensure that the appropriate temperature was ...


    By CAS DATALOGGERS

  • The impact of the oceans heating up

    Following the hottest July and August on record, the earth’s rising temperature is having a number of knock on effects on rising ocean water temperatures around the world. A new study by The International Union for the Conservation of Nature has described rising ocean temperatures as “the greatest hidden challenge of our generation,” and outlined findings that indicate that ...


    By AQUAREAD Limited

  • Les Chênes Verts, Eiffage, greenhouse cogeneration plant - Case Study

    Chênes Verts Energie has awarded Eiffage Energie as the main contractor of the renovation of an older generation greenhouse cogenerationplant in Chenes Verts’s  ...


    By Clarke Energy

  • From Landfill to the Tomato Plant -- Purified Biogas Powers Greenhouse Operation

    In 2009, the Board of Waste Management for the Mauricie region of Quebec, Canada (RGMRM) found a biogas purification solution through an Eco-Tec Inc. system known as BgPur, which uses a patented, high efficiency gas-liquid contacting process, allowing H2S to be absorbed and the gas purified for reuse in power generation, cogeneration and heating applications. The aim was to purify the landfill ...


    By Eco-Tec Inc.

  • Commission Calls for New Policies as EU Greenhouse Gases Rise Again

    EU greenhouse gas emissions rose for the second successive year in 2001, raising concerns over progress towards targets under the Kyoto Protocol. The European Commission has responded with a call for 'additional measures' to cut emissions from industry, transport and products. Under the Kyoto Protocol, the EU signed up to reduce its greenhouse gas emissions to 8% below the 1990 level by 2008-12. ...

  • Chicago Council lists three-decade changes in greenhouse gases and average temperature

    In 2011, we wrote a column, “Global warming is happening: How should farmers respond?” (http://agpolicy.org/weekcol/549.html). In that column we began by saying, “There was a time when one could legitimately argue that there was a lack of scientific agreement over the issue of the role of humans in global warming and even whether we were in a ...


    By National Farmers Union

  • Formation and emissions of ammonia and greenhouse gases from stored and composted solid animal manure

    Beside other branches of industry, agriculture is an important source of methane (CH4) and nitrous oxide (N2O) emissions and the most important source of ammonia (NH3). In spite of several investigations concerning ammonia and greenhouse gas emissions during storage and composting of liquid and solid animal manure, the real extent of these emissions is still unknown. This is mainly because of the ...


    By ORBIT e.V.

  • Case study - Pelton Reforestation Ltd., Maple Ridge, British Columbia, Canada

    “In 1986 our company used Sidel Systems to design and install a complete hot water heating system in our 135,000 sq./ft. greenhouse. The system was comprised of 51mm heating loops, headers with computer controlled mixing valves, and a 500 HP gas fires Cleaver Brooks Boiler outfitted with a matching flue gas condenser unit. Over the next 3 years we added additional greenhouse space and the ...


    By Sidel Systems USA Inc.

  • Decreased cost price advantage of gas CHP use

    From the new Quantitative Information of the Greenhouse Horticulture prove the differences in cost between whether or not CHP use almost to fall away, the carbon footprint using CHP for the heat demand remains more favorable. At different crops is the average realized sales price below the economic cost price. The scale of the companies continues to increase; the NL acreage of the main crops is ...

  • Composting and local food merge st urban garden

    Growing Power (GP), a nonprofit urban garden and training center in Milwaukee, Wisconsin, provides affordable produce to neighborhoods without access to fresh food, and processes a variety of organic wastes through composting and anaerobic digestion. Located on a two-acre lot on Milwaukee's north side, the six greenhouses and several hoop houses include raised beds for herbs and greens, ...


    By BioCycle Magazine

  • Crops flourish with Scalewatcher

    Water is an essential component of horticulture and agriculture whether it is used for irrigating field-scale vegetables, nursery stock, flowers or fruit.  Where water contains high degrees of calcium, magnesium and sodium, it can cause nutrient deficiency in plants and crops resulting in stunted growth and poor yields. Calcium also blocks irrigation systems and boilers in heated ...

  • VeggieFresh LED grow lights help commercial growers increase revenue by 35%

    After 2 years of research, development, and testing, VeggieFresh LED announces arrival of their new line of commercial LED grow lights through VeggieFreshLED.com. Known for bringing innovative products to the commercial greenhouse marketplace, VeggieFresh is positioned to permanently alter how produce is grown on a large scale by showing grow operation ...


    By Veggie Fresh LED

  • Cooking under the sun

    A $6 cardboard box that uses solar power to cook food, sterilise water and could help 3 billion poor people cut greenhouse gases, has won a $75,000 prize for ideas to fight global warming.The 'Kyoto Box', named after the United Nations’ Kyoto Protocol that seeks to cut emissions of greenhouse gases, is aimed at billions of people who use firewood to cook.The cooker uses the greenhouse effect to ...


    By GLOBE Foundation

  • How US businesses can access federal stimulus money

    I thought that “federal stimulus” would be high on Google’s hit list. But alas, when I checked its analysis of hot trends yesterday, I discovered that “Rockin’ Robin” is number one.Thanks to American Idol this 1950s song dominates the search engine. Bringing more music to the ears of business owners, however, is the $20 billion made available for energy efficiency through the American Recovery ...

  • BioCycle world

    The Climate Action Reserve (CAR) Board of Directors unanimously adopted the Organic Waste Digestion (OWD) Project Protocol, which provides a standardized approach for quantifying, monitoring and verifying greenhouse gas (GHG) reductions from organic waste diversion projects. Development of the OWD protocol was described in a detailed article in last month’s BioCycle, “GHG Reductions From Organic ...


    By BioCycle Magazine

  • Evaluating composting for contingency bases

    Technology is being evaluated to demonstrate a potentially viable supplement to waste incineration at Department of Defense bases that support operations of deployed units. To help address the solid waste management challenges at Department of Defense contingency bases overseas, the National Defense Center for Energy and Environment (NDCEE) is demonstrating an in-vessel composting ...


    By BioCycle Magazine

  • Managing GHG emissions from agriculture: a unique but solvable challenge

    Thousands of companies have developed greenhouse gas (GHG) inventories in recent years as a crucial first step towards measuring and ultimately reducing their emissions. Agricultural emissions are a large part of many of those inventories: farming is currently responsible for between 10 and 12 percent of global GHG ...

  • College Composting Program Matures

    Untitled Document To meet the need for quality compost, Berea College now processes 35 tons of food residuals each year, providing jobs for ...


    By BioCycle Magazine

  • Financing an anaerobic digester

    LENDERS are generally well disposed to projects that diversify revenues while lowering costs and mitigating risks. Add a ready source of equity and you are well on the way toward financing a project that is a win-win proposition for the lender and the project developer. Such is the case with the anaerobic digester project at Geerlings Hillside Farm (GHF). The Geerlings's 8,000-head hog farm is ...


    By BioCycle Magazine

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