domestic solar hot water Articles

  • The Effectiveness of Combined heat and Power Solar Water Heating Systems

    Abstract: Solar water heating in residential and commercial buildings is often provided by integrating a large number of domestic thermosyphon solar water heaters. The economic effectiveness of solar Domestic hot water heating systems depends mainly on its types and configurations. Thereupon in this paper, simulation models have been presented for the modeling of thermal and electrical ...


  • CPV solar power system

    There are relatively few CPV applications still pursuing Si cells. The idea was somewhat "hot", no pun intended, when there was a silicon shortage going on, but silicon prices have dropped as new capacity has come online and the only successful CPV concepts being marketed which I know of are based on triple junction Ge/GaAs/InGaP or similar cells. These are also rather heat sensitive, and the two ...


    By Power Inverter Co

  • What Are Solar Buildings Technologies?

    Solar buildings technologies use the non-polluting power of the sun to help heat, cool, and power our buildings. Because buildings now use one-third of the energy currently consumed in this country, the potential markets for using solar buildings technologies in place of conventional ones is substantial. Whether you're a home owner, architect, builder, business owner, or industry or utility ...

  • Water vapour permeation measurement for PV Solar Cell packaging

    With fears of carbon dioxide causing global warming and diminishing supplies of fossil fuels, a looming energy crisis is affecting all countries.  As a consequence, a great deal of world-wide effort is going into the development of alternative energy technologies.  At present, wind, hydro and geothermal are becoming well established with more niche roles for tidal and solar. The latter ...


    By Systech Instruments Ltd

  • Hotel Melia Las Dunas Cayo Santa Maria, Cuba – case study

    OVERVIEW The Hotel Melia Las Dunas has 925 rooms and suites. Fresh water arrives at the Hotel in a DN 200 steel pipe (8”). Water consumption daily average is 936 m3 (almost 250,000 US Gallons per day) with peak rates up to 190 m3/h (833 gpm). WATER SYSTEM CHALLENGES The domestic hot water for the site is produced by two sets of three boilers ...

  • Retrofit for the future project - funded by the technology strategy board

    A terraced house in Birmingham was refurbished with a target to cut heating bills by at least £1,000 a year and CO2 by 80%. The project aimed to address specific barriers to large scale low carbon housing retrofit. Measures to improve the energy efficiency of the house were carried out such as the application of exterior wall cladding and the installation of solar PV. Encraft will monitor ...


    By Encraft Ltd

  • Rural house with swimming pool, Perthshire

    At this site in Scotland the owner has achieved a high level of energy independence using a mix of renewable energy sources, including a Gaia-Wind turbine. Average annual wind energy production: 25,000 kWh Background At this site in Kinrossie, Perthshire, the owners’ goal was to achieve a high level of energy independence using a mix of renewable energy ...


    By Gaia-Wind Ltd.

  • A Cleaner Energy Future

    As renewable energy plays an increasingly important role in the world’s energy portfolio, the standards of ASTM International Committee E44 are helping to pave the way for innovation in clean energy sources. A growing population and improving living standards around the world are causing significant increases in energy demand and competition for fossil fuels. These escalating energy ...


    By ASTM International

  • Redhill Primary School - case study

    Reducing energy costs and shrinking carbon footprint without compromising on comfort When it came to choosing the right heating and cooling solution for Redhill Primary School, Worcestershire County Council wanted a sustainable alternative to the less environmentally friendly methods of oil or gas. ENER-G Sustainable Technologies (EST) delivered a full turnkey solution from thermal conductivity ...


    By ENER-G

  • Energy waste the size of Japan

    Here is a startling fact: US power plants waste more energy than many countries use, including advanced economies like that of Japan. The wasted energy is in the form of heat thrown off when power plants produce electricity. This is one of the points being brought to light by the International District Energy Association (IDEA), as it promotes new federal incentives for heat efficiency. While the ...

  • P2 for SMEs: How to advance pollution prevention in small and medium-sized organizations

    Businesses in the small- and medium-sized enterprise sector are a vital part of the Canadian economy. So-called 'SME' firms have less than 500 employees and less than $50-million in annual revenues. But SMEs are the fastest growing facet of the Canadian economy, and as such are especially important to the successful adoption of pollution prevention (referred to as 'P2' in government circles). SME ...

  • The Beltran biomass cogeneration system

    An effective, economical solution for harvesting safe, renewable domestic energy, mitigating wastes and achieving environmental goals. Background The Beltran Biomass Cogeneration System (BBCS) is an integrated, three-stage process that uses proprietary gasification technology to convert biomass and other organic wastes into versatile, cleanburning synthesis gas. The purified ...


    By Beltran Technologies, Inc.

  • Superinsulated Houses

    Superinsulated building is a method of energy-efficient construction that can be adapted to any structure, commercial or residential, in any climate. A superinsulated (SI) home can save 75% of the annual energy costs for heating and cooling compared to a standard home, and is also more comfortable and healthy for the occupants. SI houses can be of any design—Colonial, Victorian, Contemporary, ...


  • Envision 2050: The Future of Transportation

    What will transportation be like in 2050? Will we all be stuck in one giant traffic jam? Flying to our appointments in personal airborne delivery systems? Teleporting ourselves and our stuff around? Or not going anywhere at all? In large part, the answers to these questions will depend on how we answer two other questions today: What would we like it to be like? And what would it ...


    By Ensia

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