green air conditioning Articles

  • From air conditioning to urban planning, defaults and standards create dysfunction by design

    How can we stop outdated assumptions from forcing us to waste? Personal heaters are a summer survival tool for many office workers chilled to the bone by hyperactive ventilation systems — an act of self-defense against an epidemic of overcooling that is wasting energy and confounding comfort in not only offices but also large shops, schools and other buildings. An audit ...


    By Ensia

  • `Green Buildings` can lead to problems with Indoor Air Quality (IAQ)

    In striving to construct energy-efficient, cost-effective buildings, the imperative issue of their indoor air quality (IAQ) is often overlooked. This can lead to an unhealthy indoor environment and to conditions such as sick building syndrome (SBS) or other building related illnesses (BRI). In the past few decades, energy conservation measures have led to airtight building construction that can ...


    By PPM Technology

  • Critical Factors in Adopting Cooling Media for Central Air-Conditioning Systems in Hong Kong

    There has been a dilemma about whether to adopt water-cooled or air-cooled air-conditioning systems at various times for different developments in Hong Kong, strongly influenced by the local government. Fresh water has been a scarce resource as a cooling medium; however, in recent years, the local government has advocated water-cooled air-conditioning systems, using fresh water or sea water as a ...

  • Efficient Operation of Lighting, Hot Water and Air Conditioning: Hotel Inter Continental Sydney

    To improve its environmental performance and save nearly $300,000 per year, the Hotel Inter Continental Sydney changed some practices that seemed insignificant in themselves but which collectively, wasted massive resources. The changes cost around $275,000 and no adverse affect on guest amenity. They included lowering the power of lights that were too bright, lowering the temperature of ...


  • Green building benefits

    There is growing worldwide concern by the public and government about climate change, and with the new Obama Administration and upcoming global summit later this year in Copenhagen, this concern may grow into a tidal wave. As in other environmental programs, business and “industry” will bear the brunt of future regulations. The good news is that such future regulations will likely contain some ...


  • Green leasing issues

    The past few years have witnessed an exponential growth in green buildings. According to recent studies, total green building space has been growing at a 50 percent compound rate since 2000. At the end of 2008, there were 1750 “certified” green buildings and another 13,500 projects underway that were committed to achieve green building status. The momentum toward green buildings is a result of ...


  • Greening the Built Environment

    ASTM Standards and Products Form the Foundation of Sustainable Construction Efforts Today, a major focal point for the worldwide building industry is the growing demand for sustainable construction. Sustainable, or “green,” construction is focused on the more effective use of resources and ultimately the creation of healthier, energy efficient, more environmentally ...


    By ASTM International

  • Clean goes green

    Her daughter's eyes were pink and puffy. The child's nose was scratchy and runny. Nancy Figueroa of Jamaica Plain did everything she could to make her daughter well: She bought one medicine after another; did more wash than a 24-hour laundromat; gave to charity her daughter's stuffed animals that might be carrying dust, including the little monkey that young Katherine clung to for comfort. Still ...

  • Where to find a green job?

    William Carlos Williams began one of his most famous poems: “So much depends upon a red wheel barrow.” Maybe if he were writing today he’d switch ‘red wheelbarrow’ to ‘green job.’The US is relying on green jobs to push forward economic recovery. Our political leaders promise they are on their way, spurred by $80 billion in stimulus money for efficiency and renewable energy.But what are green ...

  • The Presidential Green Chemistry Challenge: Celebrating 20 Years of Green Chemistry Innovation

    Bergeson & Campbell, P.C. (B&C®) and The Acta Group (Acta®) are deeply committed to supporting the development of greener, more sustainable chemical processes and products, and so we are pleased to help spread the news about a tremendous success story, featuring scientists from ...


    By Bergeson & Campbell, P.C.

  • Building green when times are lean

    In an article entitled “Actions Speak Louder than Greenwash” last December we looked at how some unscrupulous property developers in Thailand preferred to market “greenwash” rather than embrace the concept of sustainable building design and construction. Indeed, it seemed as if the property developers were suddenly falling over themselves in their rush to surf the green wave, with project ...

  • Will the Financial Industry Lead the U.S. to Green?

    This seems a bit of an oxymoron. After all, how much can banks contribute to environmental sustainability? Banks do not require a lot of water to operate or release toxic pollutants into the air. To my knowledge the printing of money does not have a large carbon footprint. While banks and all office-based enterprises can be made more energy and paper-efficient, saving significant expense, it ...


  • Choosing Data Loggers for Your Green Building Project

    Environmental Construction and Energy Projects Require High-Accuracy Devices The green building industry is growing quickly, and successful projects benefit from assessment and evaluation from start to finish. From hospitals to industrial operations to single-family homes, measurements of conditions such as temperature, solar radiation, and energy consumption are essential to carrying out ...


    By CAS DATALOGGERS

  • Vancouver public library green roof monitoring project

    Introduction: Public Works and Government Services Canada (PWGSC) initiated this study to add to the pool of information on Best Management Practices (BMPs) and Low Impact Development (LID) methods. In June 2003, PWGSC partnered with Kerr Wood Leidal Associates Ltd. to conduct a year long monitoring project on the Vancouver Public Library green roof. The purpose of this project is to assess ...


    By XP Solutions

  • Green Filter Cleaning Machine case study

    This Technical Report Summary presents an overview of laboratory testing conducted at SwRI to evaluate the performance of a Diversi-Tech Green Filter Cleaning Machine under controlled laboratory conditions. In particular, the objective was to measure if and by how much, if any, airflow resistance, efficiency, and dust capacity changed for a given number of dust loading/filter cleaning cycles, ...


    By DiversiTech

  • Pigment-based identification of ozone-damaged pine needles as a basis for spectral segregation of needle conditions

    Received for publication June 6, 2008. Air pollution affects large areas of forest, and field assessment of these effects is a costly, site-specific process. This paper establishes a biochemical basis for identifying ozone-damaged pine trees to facilitate efficient remote sensing assessment of air pollution damage. Several thousand live needles were collected from ponderosa pine (Pinus ponderosa) ...

  • The role of urban forest in the protection of human environmental health in geographically-prone unpredictable hostile weather conditions

    INTRODUCTION The structure of urban forest Few people know how many or what kind of trees are found in urban areas, or the effect these trees have on a city’s environment and the health and well being of its inhabitants. In order to understand the urban forest structure and its function in environmental improvement 5 major landscape elements, i.e., building and hard pavement surface, water, ...

  • Buying green! A handbook on environmental public procurement

    Public authorities are major consumers in Europe, spending some 16 % of the EU’s gross domestic product (which is a sum equivalent to half the GDP of Germany). By using their purchasing power to opt for goods and services that alsorespect the environment, they can make an important contribution towards sustainable development. Green public procurement covers areas such as the purchase of ...

  • Buying green! a handbook on environmental public procurement

    Introduction What is the connection between public purchasing and the environment? Public authorities are major consumers in Europe, spending some 16 % of the EU’s gross domestic product (which is a sum equivalent to half the GDP of Germany). By using their purchasing power to opt for goods and services that also respect the environment, they can make ...

  • Green remediation best management practices: site investigation

    Overview The need for site investigation is common to cleanups under any regulatory program. An investigation can occur at all points in the cleanup process, from initial site assessment through waste site closeout. A site investigation generally is undertaken to: Confirm the presence or absence of specific contaminants Delineate the nature and extent of environmental contamination ...

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