Xem 1-20 trên 94 kết quả Energy consumption
  • The unit of energy : + in the dietary domain : calorie ( cal) + in the dietician’s capitalized : Calorie (Cal) + in mechanic : Joule ( J ) 1 Cal = 1000 cal =1 kcal= 4186.8 J * somes notes : + The well-fed adult : 2400 kcal /day + mankind uses the energy Consumption for many purposes .

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  • 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.

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  • Energy management and conservation are the keys to using fuel and electrical energy in the most efficient way. Proper energy management can lead to big savings on the operating costs of a building. If fuel and electrical energy consumption are reduced, money will be saved as a result. Many residential, industrial, and commercial buildings have already undergone changes that have resulted in the savings of both energy and money. Any building can be made more energy efficient when proper energy management procedures are applied....

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  • This book covers the areas of fundamentals in energy conservation and its applications in selected industries. There are nine chapters in this book which have been written by leading experts in energy from all over the world. The topics range from energy fundamentals from cosmic radiation, tidal waves and dams. The chapters examine the potential of utilizing energy from sustainable resources and how energy consumption may be conserved from various new technologies.

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  • "Under the right conditions and applications, evaporative air-conditioning (EAC) technologies can provide excellent cooling and ventilation with minimal energy consumption." Evaporative air-conditioning technologies are being used increasingly in residential and commercial applications worldwide. EAC technologies, which rely on water as a coolant rather than on chemical refrigerants, are economical to produce and use and have important environmental benefits.

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  • Developing a smart grid has become an urgent global priority as its economic, environmental, and societal benefit willbe enjoyed by generations to come. In- formation and communications technologies are at the core of the smart grid vision as they will empower today’s power grid with the capability of supporting two-way energy and information flow, isolating and restoring power outages more quickly, facilitating the integration of renewable energy sources into the grid and empowering the consumer with tools for optimizing their energy consumption....

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  • This paper analyzes four important issues related to national renewable energy policies including strategies for energy development, policies on financial supports for renewable energy development, use of taxes and fees for energy management, policies on energy consumption.

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  • Tham khảo tài liệu 'simple measures to reduce energy consumption', công nghệ thông tin, phần cứng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article An Energy Consumption Optimized Clustering Algorithm for Radar Sensor Networks Based on an Ant Colony Algorithm

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  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: Energy consumption of a chipper coupled to a universal wheel skidder in the process of chipping wood...

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: SoftExplorer: Estimating and Optimizing the Power and Energy Consumption of a C Program for DSP Applications Eric Senn

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học đề tài : Energy consumption and lifetime analysis in clustered multi-hop wireless sensor networks using the probabilistic cluster-head selection method

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Link Quality-Based Transmission Power Adaptation for Reduction of Energy Consumption and Interference

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Mobile operators have set ambitious targets-is it possible to boost network capacity while reducing its energy consumption?

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  • 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]...

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  • carbon dioxide recovery systems In the fermentation process, the yeast feeds on the wort to produce carbon dioxide and alcohol. This carbon dioxide can be recovered with closed fermentation tanks and used later in the carbonation process. The fermentation process generates about 8-10 lbs/barrel wort (3-4 kg CO2/hl) (Lom and Associates, 1998). Typical CO2 scrubber operations require 2 kg of water per kg of carbon dioxide (Dell, 2001). A large brewery can become self-sufficient for CO2 if a well-designed plant is installed to recover CO2 from fermentation. The U.S.

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  • In many of our discussions with industry leaders, we have emphasised the need to install solar panels on the facades of new housing complexes and offices; we reiterated this more recently in last year’s Christmas letter to our members. We are now happy to announce that there has been a large step forward in this regard. The city of Zurich voted 167 to 0 in favour of renovating building envelopes in an energy-smart manner, rather than simply adhering to outdated building codes. And now an apartment building in Leimbach, on the outskirts of Zurich, is being renovated with a solar...

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  • Heat conduction is a fundamental phenomenon encountered in many industrial and biological processes as well as in everyday life. Economizing of energy consumption in different heating and cooling processes or ensuring temperature limitations for proper device operation requires the knowledge of heat conduction physics and mathematics.

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  • In recent years, the ICT market has quickly moved toward the integration of a large variety of functions into a single portable electronic equipment. The boundaries among different devices like music players, digital cameras or mobile phones are going to vanish. In this trend, one of the key factors is played by data storage, since all these devices require a large amount of memory to store either audio or visual data. Also, the energy consumption needs to be reduced to further extend battery duration and the functionality of the devices....

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  • Welcome to this 31st edition of the Transportation Energy Data Book. This edition builds on a 36-year tradition of Data Books supported by Philip Patterson, whose recent retirement marked the end of an era for a long-time asset and shining example both for the Department of Energy (DOE) and the transportation energy community. Twenty-two editions of this Data Book have been produced by Stacy Davis; DOE is grateful for the dedication, consistency, and skill she has brought to this effort....

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