Xem 1-20 trên 23 kết quả Solar resource
  • Solar energy, light and heat radiation from the Sun, has been exploited by humans since ancient times using a variety of technology development than ever before. Solar radiation along with secondary resources of energy like wind and solar energy, water power and biomass, make the most of renewable energy available on earth. Only a tiny fraction of the available solar energy is used.

    ppt202p minhhai20789 26-04-2011 188 110   Download

  • With shortages of fossil energy and heavy biomass energy use occurring in both developed and developing countries, a major focus has developed worldwide on renewable energy systems. Currently, a heavy focus is on biofuels made from crops, crop residues and wood. Though it may seem beneficial to use renewable plant materials for biofuel, their use raises many concerns about major environmental problems, including food shortages and serious destruction of vital soil resources.

    pdf513p chipmoon 19-07-2012 137 54   Download

  • A look on energy, renewable energies, energy storage and synthetic fuels, hybrid architecture, fuel cells, hydrogen as a vector of energy of the future.The Earth resources are quite limited in quantity Many challenges to mankind in 21st century: development, health, water, food, demography, education, energy.In physics, energy (Ancient Greek: ἐνέργεια energeia "activity, operation"[1]) is a quantity that is often understood as the ability a physical system has to produce changes on another physical system.

    pdf156p dienquochuy 21-12-2012 42 19   Download

  • Grid-connected photovoltaic power systems are power systems energised by photovoltaic panels which are connected to the utility grid. Grid-connected photovoltaic power systems comprise of Photovoltaic panels, MPPT, solar inverters, power conditioning units and grid connection equipments. Unlike Stand-alone photovoltaic power systems these systems do not have batteries. When conditions are right, the grid-connected PV system supplies the excess power, beyond consumption by the connected load, to the utility grid.[1]...

    pdf20p rose_12 04-12-2012 41 13   Download

  • A wide variety of detail regarding genuine and proprietary research from distinguished authors is presented, ranging from new means of evaluation of the local solar irradiance to the manufacturing technology of photovoltaic cells. Also included is the topic of biotechnology based on solar energy and electricity generation onboard space vehicles in an optimised manner with possible transfer to the Earth. The graphical material supports the presentation, transforming the reading into a pleasant and instructive labor for any interested specialist or student....

    pdf0p cucdai_1 16-10-2012 39 12   Download

  • Before we can talk about solar power, we need to talk about the sun • Need to know how much sunlight is available • Can predict where the sun is at any time • Insolation : incident solar radiation • Want to determine the average daily insolation at a site • Want to be able to chose effective locations and panel tilts of solar panels

    pdf152p tanthanh789 17-09-2013 22 8   Download

  • Renewable Energy is energy generated from natural resources - such as sunlight, wind, rain, tides and geothermal heat - which are naturally replenished. In 2008, about 18% of global final energy consumption came from renewables, with 13% coming from traditional biomass, such as wood burning. Hydroelectricity was the next largest renewable source, providing 3% (15% of global electricity generation), followed by solar hot water/heating, which contributed with 1.3%. Modern technologies, such as geothermal energy, wind power, solar power, and ocean energy together provided some 0.

    pdf0p kimngan_1 05-11-2012 61 14   Download

  • Science arises from the very human desire to understand and control the world. Over the course of history, we humans have gradually built up a grand edifice of knowledge that enables us to predict, to varying extents, the weather, the motions of the planets, solar and lunar eclipses, the courses of diseases, the rise and fall of economic growth, the stages of language development in children, and a vast panorama of other natural, social, and cultural phenomena. More recently we have even come to understand some fundamental limits to our abilities to predict.

    pdf162p tailieuvip13 19-07-2012 29 11   Download

  • We believe that it is interesting to study the system and software architecture of environments which integrate the evolving ideas of computational grids, distributed objects, web services, peer-to-peer networks and message oriented middleware. Such peer-to-peer (P2P) Grids should seamlessly integrate users to themselves and to resources which are also linked to each other. We can abstract such environments as a distributed system of “clients” which consist either of “users” or “resources” or proxies thereto.

    pdf141p nhacchovina 22-03-2013 34 7   Download

  • In 2003, the National Research Council (NRC) published the first decadal strategy for solar and space physics: The Sun to the Earth—and Beyond: A Decadal Research Strategy in Solar and Space Physics.1 That report included a recommended suite of NASA missions that were ordered by priority, presented in an appropriate sequence, and selected to fit within the expected resource profile for the next decade.

    pdf74p camnhung_1 13-12-2012 13 3   Download

  • Discovering what lies behind a hill or beyond a neighborhood can be as simple as taking a short walk. But curiosity and the urge to make new dis- coveries usually require people to undertake journeys much more adven- turesome than a short walk, and scientists oft en study realms far removed from everyday observation—sometimes even beyond the present means of travel or vision.

    pdf0p cronus75 14-01-2013 11 2   Download

  • Renewable energy technologies—including solar, wind, biomass, geothermal, and hydropower—are in many ways attractive to policy makers who must address these market disruptions and the economic and social strife they can create. Renewable energy technologies are advantageous because they are immune to price shocks from fuel supply constraints and cartel pricing. Furthermore, renewable energy resources are much more environmentally benign than their conventional counterparts, such as coal, nuclear, and petroleum products.

    pdf0p mebachano 01-02-2013 17 2   Download

  • Four hundred years ago, the Universe changed. Or, at least, our perception of it did, thanks to Galileo Galilei’s scrutiny of the night sky with a telescope. Within a couple of years, his observations of the Moon, phases of Venus and satellites of Jupiter shattered the old Ptolemaic model of our Solar System. To the church’s dismay, Earth assumed its rightful place as one of several planets orbiting the Sun (see page 28). Marking Galileo’s anniversary, the International Year of Astronomy seeks to remind us of the humbling nature of gazing at the heavens.

    pdf136p camchuong_1 11-12-2012 16 1   Download

  • Overall structure of electrical power system is in the process of changing. For incremental growth, it is moving away from fossil fuels - major source of energy in the world today - to renewable energy resources that are more environmentally friendly and sustainable [1].

    pdf328p phoebe75 19-02-2013 63 23   Download

  • LIFE ON EARTH ULTIMATELY DEPENDS ON ENERGY derived from the sun. Photosynthesis is the only process of biological importance that can harvest this energy. In addition, a large fraction of the planet’s energy resources results from photosynthetic activity in either recent or ancient times (fossil fuels). This chapter introduces the basic physical principles that underlie photosynthetic energy storage and the current understanding of the structure and function of the photosynthetic apparatus (Blankenship 2002). The term photosynthesis means literally “synthesis using light.

    pdf36p anhphuonggl 11-04-2013 27 8   Download

  • The North Carolina Solar Center at NC State University, in collaboration with the National Renewable Energy Laboratory, examined 10 state financial-incentive programs in six states using a case-study approach in order to clarify the key factors—both internal and external to the program—that influence their effectiveness at stimulating deployment of renewable energy technologies. While existing information resources such as the National Database of State Incentives for Renewable Energy (DSIRE, www.dsireusa.

    pdf206p mebachano 01-02-2013 18 5   Download

  • Energy is important for the existence and development of humankind and is a key issue in international politics, the economy, military preparedness, and diplomacy. To reduce the impact of conventional energy sources on the environment, much attention should be paid to the development of new energy and renewable energy resources. Solar energy, which is environment friendly, is renewable and can serve as a sustainable energy source. Hence, it will certainly become an important part of the future energy structure with the increasingly drying up of the terrestrial fossil fuel.

    pdf307p bachduong1311 10-12-2012 46 4   Download

  • About 95% of the renewable energy sold to consumers through green pricing programs was supplied from projects meeting the generally accepted industry definition of “new.” Renewable energy sold through green pricing programs in 2008 represents an equivalent renewable energy capacity of more than 1,500 MW, with more than 1,400 MW of this represented by “new” renewable energy resources (Table 11).

    pdf49p lenh_hoi_xung 21-02-2013 17 4   Download

  • Biomass, fossil fuel, geothermal, hydroelectric, nonrenewable resource, renewable resource, resource, solar energy,... Are the words in the book "Green gardening" Invite you to consult the text book to grasp the pronunciation and set sentences with the words above.

    pdf14p thieulam5782 04-10-2015 11 4   Download

  • although state solar programs report limited marketing initiatives of their own, this per- spective reflects a narrow definition of marketing – one that primarily focuses on communi- cations-centered initiatives, such as website strategies, public relations activities, and educa- tion of stakeholders. these marketing resources are important.

    pdf34p lenh_hoi_xung 21-02-2013 24 3   Download

Đồng bộ tài khoản