NASA Report: Greenhouse Gases, Not Sun, Driving Warming (LiveScience.com)
LiveScience.com – A recent, prolonged lull in the sun’s activity did not prevent the Earth from absorbing more solar energy than it let escape back into space, a NASA analysis of the Earth’s recent energy budget indicates. nbsp; David Sellers Mechanical Inc.175 Broad Street Suite 168 Glens Falls, NY, 12801 USA rebekah@davidsellers.com • 518-623-9760 Read More →
Salazar, Chu Flip Switch on 65% Energy Savings
a rel=nofollow class=title-linkspanSalazar, Chu Flip Switch on 65% Energy Savings/span/adiv class=field field-name-body field-type-text-with-summary field-label-hiddendiv class=field-itemsdiv class=field-item evenpEnergy-Efficient LED Lights Illuminated in Ceremony on National Mall/p /div/div/div Read More →
Theoretical and practical analysis of an integrated solar hot water-powered absorption cooling system
Publication year: 2012brbSource:/b Energy, Available online 31 January 2012brJ. Darkwa, S. Fraser, D.H.C. ChowbrEvaluation of a typical integrated solar absorption cooling system has been carried out to determine its overall performance. Analysis of the results revealed an operational efficiency of 61% for the solar collectors at a mean differential temperature (ΔT) of 51 °C as compared with... [Read more]
A method to determine the power to heat ratio, the cogenerated electricity and the primary energy savings of cogeneration systems after the European Directive
Publication year: 2012brbSource:/b Energy, Available online 29 January 2012brChristos A. FrangopoulosbrAccording to the European Directive for the promotion of cogeneration, in order for cogeneration systems to be eligible for economic and financial benefits, they must comply with certain requirements regarding efficiency and primary energy savings. Therefore, the calculation of these two performance... [Read more]
City of Houston Joins Better Buildings Challenge, Partners with Energy Department to Reduce Energy Waste and Boost Efficiency
a rel=nofollow class=title-linkspanCity of Houston Joins Better Buildings Challenge, Partners with Energy Department to Reduce Energy Waste and Boost Efficiency /span/adiv class=field field-name-body field-type-text-with-summary field-label-hiddendiv class=field-itemsdiv class=field-item evenpWashington, D.C. — Building on President Obama’s call in the State of the Union address earlier this week... [Read more]
Energy Department Announces Student Teams, New Location for Solar Decathlon 2013
a rel=nofollow class=title-linkspanEnergy Department Announces Student Teams, New Location for Solar Decathlon 2013/span/adiv class=field field-name-body field-type-text-with-summary field-label-hiddendiv class=field-itemsdiv class=field-item evenpU.S. Department of Energy Secretary Steven Chu announced the 20 collegiate teams selected to compete in the U.S. Department of Energy Solar Decathlon 2013... [Read more]
Optimum design of district heating: Application of a novel methodology for improved design of community scale integrated energy systems
Publication year: 2012brbSource:/b Energy, Available online 26 January 2012brSayyed Mohammad Sanaei, Toshihiko NakatabrThe purpose of this paper is to present a new tool for design of integrated energy systems. The initial choice of the energy system components and the way they should interact is a crucial decision which the outcome of the design heavily relies on. Use of a physical law (instead... [Read more]
Methodology for maximising the use of renewables with variable availability
Publication year: 2012brbSource:/b Energy, Available online 24 January 2012brAndreja Nemet, Jiří Jaromír Klemeš, Petar Sabev Varbanov, Zdravko KravanjabrA problem when exploiting renewable energy sources, such as wind and solar radiation, is their fluctuating availability. In the presented work, the Heat Integration methodology for batch processes based on Time Slices has been extended to cover... [Read more]
An energetic analysis of CO2capture on a gas turbine combining flue gas recirculation and membrane separation
Publication year: 2012brbSource:/b Energy, Available online 24 January 2012brBouchra Belaissaoui, Gilles Cabot, Marie-Sophie Cabot, David Willson, Eric FavrebrPost-combustion Carbon Capture and Storage (CCS) is currently intensively investigated as a key issue for the mitigation of greenhouse gases emissions. A very large number of studies is dedicated to coal power plants. In this paper, the... [Read more]
Exergy and economic analysis of a pyramid-shaped solar water purification system: Active and passive cases
Publication year: 2012brbSource:/b Energy, Available online 23 January 2012brAli Kianifar, Saeed Zeinali Heris, Omid MahianbrAn exergy analysis has been conducted to show the effect of a small fan on the exergy efficiency in a pyramid-shaped solar still. The tests were carried out in Mashhad (36° 36′ N), for two solar still systems. One of them was equipped with a small fan (active system), to... [Read more]
