Verlag: Bibliogov, 2012
ISBN 10: 1249193494 ISBN 13: 9781249193494
Anbieter: Leserstrahl (Preise inkl. MwSt.), Oldenbüttel, Deutschland
Taschenbuch. Zustand: Fine. leichte Gebrauchsspuren---. nein.
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Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249358043 ISBN 13: 9781249358046
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - This study explores the potential of a turbine-mounted laser anemometer to enhance capabilities for wind energy production.
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249134722 ISBN 13: 9781249134725
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - Established in 1974, the National Renewable Energy Laboratory (NREL) is the US's primary laboratory for renewable energy and energy efficiency research and development. The NREL is a government-owned, contractor-operated facility; it is funded through the U.S. Department of Energy (DOE). This project focuses on the development of electrical models for small (1-MW) distributed resources at the National Renewable Energy Laboratory's Distributed Energy Resources Test Facility.
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249175674 ISBN 13: 9781249175674
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - This is a report on the development of anti-islanding control for grid-connected inverters from distributed generation sources. Islanding occurs when a distributed generation source continues to provide electricity to a portion of the utility grid after the utility experiences a disruption in service. Since the utility no longer controls this part of the distribution system, islanding can pose problems for utility personnel safety, power quality, equipment damage, and restoration of service. This report proposes a new family of anti-islanding schemes that meet IEEE 1547 interconnection standards, that can detect all disruptions in service, have minimum power-quality impact, require low-cost implementation, work for multiple distributed generators, and work for any multi-phase inverters. It also provides design guidelines for the schemes, and evaluates and validates the proposed schemes for practical applications.
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249193249 ISBN 13: 9781249193241
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - Low-cost hydrogen storage is recognized as a cornerstone of a renewables-hydrogen economy. Modern utility-scale wind turbine towers are typically conical steel structures that, in addition to supporting the rotor, could be used to store hydrogen. This study has three objectives: 1) Identify the paramount considerations associated with using a wind turbine tower for hydrogen storage; 2)Propose and analyze a cost-effective design for a hydrogen-storing tower; and 3) Compare the cost of storage in hydrogen towers to the cost of storage in conventional pressure vessels. The paramount considerations associated with a hydrogen tower are corrosion (in the form of hydrogen embrittlement) and structural failure (through bursting or fatigue life degradation). Although hydrogen embrittlement (HE) requires more research, it does not appear to prohibit the use of turbine towers for hydrogen storage. Furthermore, the structural modifications required to store hydrogen in a tower are not cost prohibitive.; We discovered that hydrogen towers have a 'crossover pressure' at which their critical mode of failure crosses over from fatigue to bursting. Above the crossover pressure, however, storage costs rise quickly. The most cost-effective hydrogen tower design would use substantially all of its volume for hydrogen storage and be designed at its crossover pressure.
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249137500 ISBN 13: 9781249137504
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - This paper examines the value of concentrating solar power (CSP) and thermal energy storage (TES) in four regions in the southwestern United States. Our analysis shows that TES can increase the value of CSP by allowing more thermal energy from a CSP plant s solar field to be used, by allowing a CSP plant to accommodate a larger solar field, and by allowing CSP generation to be shifted to hours with higher energy prices. We analyze the sensitivity of CSP value to a number of factors, including the optimization period, price and solar forecasting, ancillary service sales, capacity value and dry cooling of the CSP plant. We also discuss the value of CSP plants and TES net of capital costs.
Verlag: BiblioGov, 2012
ISBN 10: 1249178835 ISBN 13: 9781249178835
Anbieter: Buchpark, Trebbin, Deutschland
Zustand: Hervorragend. Zustand: Hervorragend | Seiten: 152 | Sprache: Englisch | Produktart: Bücher.
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Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249201527 ISBN 13: 9781249201526
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - This report describes work performed to provide details of the microstructure in high-quality hydrogenated amorphous silicon and related alloys for the nanometer size scale. The materials studied were prepared by current state-of-the-art deposition methods, as well as new and emerging deposition techniques. The purpose was to establish the role of microstructural features in controlling the opto-electronic and photovoltaic properties. The approach centered around the use of the uncommon technique of small-angle X-ray scattering (SAXS), which is highly sensitive to microvoids and columnar-like microstructure. Nanovoids of H-rich clusters with 1 to 4 nm sizes in a-Si:H at the 1 vol. percent level correlate with poor solar-cell and opto-electronic behavior. Larger-scale features due either to surface roughness or residual columnar-like structures were found in present state-of-the-art device material. Ge alloying above about 10 to 20 at. percent typically leads to significant increases in heterogeneity, and this has been shown to be due in part to non-uniform Ge distributions. Ge additions also cause columnar-like growth, but this can be reduced or eliminated by enhanced ion bombardment during growth. In contrast, C alloying typically induces a random nanostructure consisting of a narrow size distribution of 1-nm-sized objects with a high density, consistent with the notably poorer opto-electronic behavior of these alloys.
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249145023 ISBN 13: 9781249145028
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - This report examines the accuracy of measurements that rely on Doppler LIDAR systems to determine their applicability to wind turbine feed-forward control systems and discusses feed-forward control system designs that use preview wind measurements.
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249144744 ISBN 13: 9781249144748
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - CARB partnered with WPPI Energy to answer key research questions on in-field performance of ground-source heat pumps and LAMELs through extensive field monitoring at two WPPI GreenMax demonstration homes in Wisconsin. These two test home evaluations provided valuable data on the true in-field performance of various building mechanical systems and lighting, appliances, and miscellaneous loads (LAMELs).
Verlag: BiblioGov, 2012
ISBN 10: 1249192242 ISBN 13: 9781249192244
Anbieter: Buchpark, Trebbin, Deutschland
Zustand: Sehr gut. Zustand: Sehr gut - Gepflegter, sauberer Zustand. | Seiten: 28 | Sprache: Englisch | Produktart: Bücher.
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249205751 ISBN 13: 9781249205753
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - This report provides the National Renewable Energy Laboratory (NREL) with information on village water supply programs in developing countries. The information is intended to help NREL develop renewable energy technologies for water supply and treatment that can be implemented, operated, and maintained by villagers. The report is also useful to manufacturers and suppliers in the renewable energy community in that it describes a methodology for introducing technologies to rural villages in developing countries.
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249196981 ISBN 13: 9781249196983
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - One principal barrier to economic utilization of lignocellulosic feedstocks in enzymatic systems for the production of alcohol fuels is a cost-effective pretreatment. The objective of a pretreatment is to render the cellulose susceptible to enzymatic hydrolysis. The lignin and hemicellulose fractions need to be partially or totally removed to enhance the hydrolysis. This report presents a detailed discussion of the physiochemical characteristics of lignocellulosics that must be considered it the development of successful pretreatment. Engineering and economic assessments are presented for key pretreatments based on organic solvent extraction (organosolv), explosive decompression (steam explosion), and wet oxidation. These assessments include process flowsheets, capital and operating cost summaries, and parametric analyses comparing the effects of various raw material and utility costs. Based on the cost of cellulose pulp produced, these pretreatments are competitive with pulping processes currently used in the paper industry. The pretreatment and feedstock costs contribute a significant amount--over 50% in most cases--of the cost of ethanol production. Recommendations are presented for a program of process-specific and integrated pretreatment-hydrolysis research.
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 124917564X ISBN 13: 9781249175643
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - The specific objectives of this subcontracted development work by Xantrex Technology Inc. were to: 1) Capture the newest digital signal processor (DSP) technology to create high-impact, 'next generation' power conversion equipment for the PV industry; 2) Create a common resource base for three PV product lines. This standardized approach to both hardware and software control platforms will provide significant market advantage over foreign competition; 3) Achieve cost reductions through increased volume of common components, reduced assembly labor, and the higher efficiency of producing more products with fewer design, manufacturing, and production test variations; 4) Increase PV inverter product reliability. Reduce inverter size, weight and conversion losses. The contract goals were to achieve an overall cost reduction of 10% to 20% for the three inverters and with no compromise in performance. The cost of the 10-kW inverter was reduced by 56%, and the cost of the 25-kW inverter was reduced by 53%. The 2.5-kW inverter has no basis for comparison, but should benefit equally from this design approach. Not only were the contract cost reduction goals exceeded by a wide margin, but the performance and reliability of the products were also enhanced. The conversion efficiency improvement, as reflected in the 50% conversion loss reduction, adds significant value in renewable energy applications. The size and weight reductions also add value by providing less cumbersome product solutions for system designers.
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249133041 ISBN 13: 9781249133049
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - This Atlas is structured as a supplement to the book: T.E. Tallian: Failure Atlas for Hertz Contact Machine Elements, 2nd edition, ASME Press New York, (1999). The content of the atlas comprises plate pages from the book that contain bearing failure images, application data, and descriptions of failure mode, image, and suspected failure causes.
Verlag: BiblioGov, 2012
ISBN 10: 1249201276 ISBN 13: 9781249201274
Anbieter: Buchpark, Trebbin, Deutschland
Zustand: Sehr gut. Zustand: Sehr gut - Gepflegter, sauberer Zustand. | Seiten: 38 | Sprache: Englisch | Produktart: Bücher.
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Verlag: BiblioGov, 2012
ISBN 10: 1249144698 ISBN 13: 9781249144694
Anbieter: Buchpark, Trebbin, Deutschland
Zustand: Sehr gut. Zustand: Sehr gut - Gepflegter, sauberer Zustand. | Seiten: 48 | Sprache: Englisch | Produktart: Bücher.
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Verlag: BiblioGov, 2012
ISBN 10: 1249192072 ISBN 13: 9781249192077
Anbieter: Buchpark, Trebbin, Deutschland
Zustand: Hervorragend. Zustand: Hervorragend | Seiten: 66 | Sprache: Englisch | Produktart: Bücher.
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Verlag: Scholar's Choice, 2015
ISBN 10: 1298041554 ISBN 13: 9781298041555
Anbieter: Buchpark, Trebbin, Deutschland
Zustand: Hervorragend. Zustand: Hervorragend | Seiten: 80 | Sprache: Englisch | Produktart: Bücher.
Verlag: Scholar's Choice, 2015
ISBN 10: 1293935220 ISBN 13: 9781293935224
Anbieter: Buchpark, Trebbin, Deutschland
Zustand: Hervorragend. Zustand: Hervorragend | Seiten: 102 | Sprache: Englisch | Produktart: Bücher.
Verlag: BiblioGov, 2012
ISBN 10: 1249193109 ISBN 13: 9781249193104
Anbieter: moluna, Greven, Deutschland
Zustand: New. KlappentextRecent advances in hydrogen fuel cell and internal combustion engine technologies have enabled new energy options for supplying electrical power in remote, off-grid areas. The objective of this investigation is to determine un.
Verlag: BiblioGov, 2012
ISBN 10: 124917869X ISBN 13: 9781249178699
Anbieter: moluna, Greven, Deutschland
Zustand: New.
Verlag: BiblioGov, 2012
ISBN 10: 1249164842 ISBN 13: 9781249164845
Anbieter: moluna, Greven, Deutschland
Zustand: New. KlappentextFeed-in tariff (FIT) policies are implemented in more than 40 countries around the world and are cited as the primary reason for the success of the German and Spanish renewable energy markets. As a result of that success, FIT .
Verlag: Books On Demand, Bibliogov, 2012
ISBN 10: 1249184185 ISBN 13: 9781249184188
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. Neuware - This report describes the development, verification, and application of a comprehensive simulation tool for modeling coupled dynamic responses of offshore floating wind turbines.
Verlag: BiblioGov, 2012
ISBN 10: 124920237X ISBN 13: 9781249202370
Anbieter: moluna, Greven, Deutschland
Zustand: New. KlappentextA study was performed to examine the possibility of using batteries and Hydrogen systems to add dispatchability to wind power. A second study examined the production of hydrogen by wind power for sale into a fuels market. Cale.
Verlag: BiblioGov, 2012
ISBN 10: 1249201152 ISBN 13: 9781249201151
Anbieter: moluna, Greven, Deutschland
Zustand: New. KlappentextAn objective of the Aquatic Species Program is the development of large scale culturing systems for the production of fuels from lipid-rich microalgae. A major constraint to any such culturing system is the provision of suffic.
Verlag: BiblioGov, 2012
ISBN 10: 1249164923 ISBN 13: 9781249164920
Anbieter: moluna, Greven, Deutschland
Zustand: New.
Verlag: BiblioGov, 2012
ISBN 10: 1249145333 ISBN 13: 9781249145332
Anbieter: moluna, Greven, Deutschland
Zustand: New. Klappentextode Description: Solar Energy - PhotovoltaicsAbstract: This program has involved investigations of the stability of CdTe and copper-indium-gallium-diselenide (CIGS) solar cells under damp heat conditions and effects of barrier.
Verlag: BiblioGov, 2012
ISBN 10: 1249131928 ISBN 13: 9781249131922
Anbieter: moluna, Greven, Deutschland
Zustand: New. KlappentextThis report documents the performance of the ThermaStor Ultra-Aire XT150H Dehumidifier. Its performance was measured across a wide range of inlet air conditions and fit to a numerical model.
Verlag: BiblioGov, 2012
ISBN 10: 1249197929 ISBN 13: 9781249197928
Anbieter: moluna, Greven, Deutschland
Zustand: New. KlappentextThis report suggests a preferred design and configuration approach for the DAWT innovative wind energy conversion system. A preliminary economic assessment is made for limited production rates of units between 5 and 150 kW rat.