Political Ecology

Design and operation of complex systems for combined cooling, heating and power generation (CCHP) are always a matter of matching performance and demand characteristics of a thermal system set to supply electrical, cooling and heating loads, according to specific usage demands. Equipment selection and operation require the characterization of power, heating and cooling load demands, [...]

In this paper, five types of solar cooling systems were involved in a comparative study for subtropical city, which is commonly featured with long hot and humid summer. The solar cooling systems included the solar electric compression refrigeration, solar mechanical compression refrigeration, solar absorption refrigeration, solar adsorption refrigeration and solar solid desiccant cooling. Component-based simulation [...]

The scientists found that replacing traditional roofing materials in an urban area the size of Detroit, with a population of about one-million, with green would be equivalent to eliminating a year’s worth of carbon dioxide emitted by 10,000 mid-sized SUVs and trucks. Their study, the first of its kind to examine the ability of green [...]

The study finds that wealthier countries use more than a third of their energy to heat, cool and illuminate buildings, but not always efficiently. Recent steps taken by the European Union and Australia to inspect, rate and publicly disclose the energy efficiency of buildings indicate the buildings use less energy and are worth more when [...]

The study used a 25,000-hour LED lamp life as a constant, comparing the energy needed throughout its life to that used for 25 1,000-hour incandescents and 2.5 10,000-hour compact fluorescents.The findings, according to a summary of the study: today’s LED lamps are essentially as energy efficient as compact fluorescents, in the amount of energy needed [...]

The 2008 Buildings Energy Data Book includes:Statistics on residential and commercial building energy consumption. Data tables contain statistics related to construction, building technologies, energy consumption, and building characteristics.Building TechnologiesThe Building Technologies Program within the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy developed this Buildings Energy Data Book to provide a current [...]

The BEES (Building for Environmental and Economic Sustainability) software brings to your fingertips a powerful technique for selecting cost-effective, environmentally-preferable building products. Developed by the NIST (National Institute of Standards and Technology) Building and Fire Research Laboratory the tool is based on consensus standards and designed to be practical, flexible, and transparent. Version 4.0 of [...]