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Hans De Keulenaer

ScienceDirect - Journal of Cleaner Production : Environmental rebound effects of high-s... - 0 views

  • The implementation of new high-speed transport technologies re-shapes the demand balance between transport modes and rebound effects may occur. In this paper first a definition of environmental rebound effects of high-speed transport is presented and various cases are discussed. Second, a method is developed to determine and quantify the environmental rebound effects employing life cycle assessment. The method is illustrated in a case study by investigating the greenhouse gas emissions of a frequently discussed future underground maglev train system for Switzerland.
Hans De Keulenaer

Smart Growth / Smart Energy Toolkit - Slideshows - 0 views

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    The slideshows developed for this toolkit illustrate the basic concepts of each smart growth / smart energy module, address some of the issues surrounding implementation and provide summaries of the case studies that were developed. Where appropriate, multiple slideshows are provided th
Arabica Robusta

ZCommunications | The Search for BP's Oil by Naomi Klein | ZNet Article - 1 views

  • Normally these academics would be fine without our fascination. They weren't looking for glory when they decided to study organisms most people either can't see or wish they hadn't. But when the Deepwater Horizon exploded in April 2010, our collective bias toward cute big creatures started to matter a great deal. That's because the instant the spill-cam was switched off and it became clear that there would be no immediate mass die-offs among dolphins and pelicans, at least not on the scale of theExxon Valdez spill deaths, most of us were pretty much on to the next telegenic disaster. (Chilean miners down a hole—and they've got video diaries? Tell us more!)
  • Mike Utsler, BP's Unified Area Commander, summed up its findings like this: "The beaches are safe, the water is safe, and the seafood is safe." Never mind that just four days earlier, more than 8,000 pounds of tar balls were collected on Florida's beaches—and that was an average day. Or that gulf residents and cleanup workers continue to report serious health problems that many scientists believe are linked to dispersant and crude oil exposure.
  • For the scientists aboard the WeatherBird II, the recasting of the Deepwater Horizon spill as a good-news story about a disaster averted has not been easy to watch. Over the past seven months, they, along with a small group of similarly focused oceanographers from other universities, have logged dozens of weeks at sea in cramped research vessels, carefully measuring and monitoring the spill's impact on the delicate and little-understood ecology of the deep ocean. And these veteran scientists have seen things that they describe as unprecedented. Among their most striking findings are graveyards of recently deceased coral, oiled crab larvae, evidence of bizarre sickness in the phytoplankton and bacterial communities, and a mysterious brown liquid coating large swaths of the ocean floor, snuffing out life underneath.
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  • All this uncertainty will work in BP's favor if the worst-case scenarios eventually do materialize. Indeed, concerns about a future collapse may go some way toward explaining why BP (with the help of Kenneth Feinberg's Gulf Coast Claims Facility) has been in a mad rush to settle out of court with fishermen, offering much-needed cash now in exchange for giving up the right to sue later. If a significant species of fish like bluefin does crash three or even ten years from now (bluefin live for fifteen to twenty years), the people who took these deals will have no legal recourse.
  • A week after Hollander returned from the cruise, Unified Area Command came out with its good news report on the state of the spill. Of thousands of water samples taken since August, the report stated, less than 1 percent met EPA definitions of toxicity. It also claimed that the deepwater sediment is largely free from BP's oil, except within about two miles of the wellhead. That certainly came as news to Hollander, who at that time was running tests of oiled sediment collected thirty nautical miles from the wellhead, in an area largely overlooked by the government scientists. Also, the government scientists measured only absolute concentrations of oil and dispersants in the water and sediment before declaring them healthy. The kinds of tests John Paul conducted on the toxicity of that water to microorganisms are simply absent.
  • Coast Guard Rear Adm. Paul Zukunft, whose name is on the cover of the report, told me of the omission, "That really is a limitation under the Clean Water Act and my authorities as the federal on-scene coordinator." When it comes to oil, "it's my job to remove it"—not to assess its impact on the broader ecosystem. He pointed me to the NOAA-led National Resource Damage Assessment (NRDA) process, which is gathering much more sensitive scientific data to help it put a dollar amount on the overall impact of the spill and seek damages from BP and other responsible parties.
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    Normally these academics would be fine without our fascination. They weren't looking for glory when they decided to study organisms most people either can't see or wish they hadn't. But when the Deepwater Horizon exploded in April 2010, our collective bias toward cute big creatures started to matter a great deal. That's because the instant the spill-cam was switched off and it became clear that there would be no immediate mass die-offs among dolphins and pelicans, at least not on the scale of theExxon Valdez spill deaths, most of us were pretty much on to the next telegenic disaster. (Chilean miners down a hole-and they've got video diaries? Tell us more!)
Colin Bennett

Variable Speed Control Reduces Energy Consumption In Refrigeration Applications - 0 views

  • As shown through theory and case study, speed control of refrigeration components provides maximum flexibility, control and energy efficiency
  • There are several incentives for using speed control on screw compressors: - Drive control will reduce the power penalty associated with slide valve, poppet valve, or throttling capacity control. On compressors with no capacity control, speed control will eliminate other poor control strategies. - Drive control will reduce wear and tear associated with slide valve action. - Drive control allows a precise suction pressure to be maintained. With slide valve, a broad dead band is often maintained to avoid excessive wear. - Drive speed control provides compressor size reduction with the same system capacity demand.
Hans De Keulenaer

Off grid passive solar monolithic dome home Off Grid Passive Solar Monolithic Dome - 0 views

  • This blog describes the building of an off grid passive solar monolithic dome. After the building of the dome is finished, I will write about living off the grid, wind and solar power, energy efficiency, sustainable living and growing organic food. Start at the bottom for the chronological story.
Hans De Keulenaer

Lessons in RE Development From Navarre, Spain - 0 views

  • As a case study of a successful approach, let’s take a look at what Spain has been able to accomplish. Spain has tackled its development of renewable energy sources aggressively. With 11,615 megawatts (MW) of installed wind capacity at the end of last year, Spain is second in the world to Germany in capacity (and about on par with the United States). The 23,372,000 MWh generated in 2006 provided just over 8.5% of Spain’s electricity: only Denmark boasts a higher percentage.
Hans De Keulenaer

Solar electricity is good for lighting, bad for heating at Division Duplex - 0 views

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    An honest article, giving a rare full picture of a solar project from a builder.
davidchapman

ScienceDaily: Recycling Wind Turbines - 0 views

  • Wind turbines are one of the most environmentally sound technologies for producing electricity, explain the researchers. However, the removal and recycling phase of wind turbines has been identified as a blind spot in assessing their overall environmental impact. Most studies have ignored this phase and focused entirely on their operation and in some cases the production and installation of wind turbines.
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    Danish researchers now suggest that in order to assess the overall environmental impact of wind power, however, the finite lifespan of wind turbines and the need to replace and recycle them must be taken into account.
Hans De Keulenaer

Is information overload on energy-efficiency leading to consumer distrust? - Low Carbon... - 1 views

  • The issue of energy-efficiency has leaped into the public consciousness in recent years. Consumers are being bombarded with advice about the best way to save electricity, save money and save the planet.But has this onslaught of information left many members of the public sceptical about the quality of advice being given? The results of a new survey would suggest that this indeed is the case.Over 9,000 consumers in 17 countries took part in the study, conducted by Accenture, which aimed to identify the changing attitudes relating to energy-efficiency.
Sascha M.

Fostering Sustainable Behavior - 1 views

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    Created by environmental psychologist Doug McKenzie-Mohr this site consists of five resources for those working to foster sustainable behaviors, such as those involved in conservation, energy efficiency, transportation, waste reduction, and water efficiency. The site includes the complete contents of the book, Fostering Sustainable Behavior, as well as searchable databases of articles, case studies, and turnkey strategies. Further, it includes, discussion forums for sharing information and asking questions of others.
Hans De Keulenaer

Joel Makower: Two Steps Forward: The Latest Reports: Solar Utilities, Carbon Offsets, a... - 0 views

  • My colleagues at Clean Edge have just released the Utility Solar Assessment (USA) Study, making the case that solar power has the potential to reach cost parity with retail-electricity rates in most regions of the U.S. in less than a decade — but only if electric utilities step up to the plate.
Phil Slade

Power House Europe: Briefing on EU Financing Opportunities for Energy Efficiency in Hou... - 0 views

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    "Resources such as guidebooks, technical reports, tools for training and asset management for social, public and cooperative housing professionals to support the development of their energy efficiency and environmental strategies; Case studies of both retrofitting of older properties and low energy new construction, effective partnerships with residents, ICT applications for empowering residents and more; An on-line forum for information and knowledge exchange between practitioners and policy makers and updates on EU funding opportunities; POWER HOUSE National/Regional platforms which gather enablers of the energy transition from all sectors to work in partnership; A platform to easily establish contacts and partnerships between local social and cooperative housing providers; Updates on development and policy discussions on EU legislation related to energy efficiency and renewables in housing and on the activities of the CECODHAS - Housing Europe Energy Policy work."
Hans De Keulenaer

Qpinch | Industrial energy and emission saving - 0 views

  • The Qpinch Heat Transformer recovers residual heat from 40 °C / 104 °F and up. It is applicable on a megawatt scale throughout all major industries that use industrial heat, including food and feed, oil & chemicals, paper and pulp, cement and manufacturing.
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    A solution using pinch technology claiming a coefficient of performance of 30 (units of heat per unit of electricity consumed).
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