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The green brewery concept - Energy efficiency and the use of renewable energy sources in breweries
As a result of adaptation to desert conditions, camels acquire the ability to produce diluted milk. This involves the production of milk with a higher water content when the animal is dehydrated than when it is fully watered. They do this by withdrawing water preferentially from the intestines under the action of prolactin and oxytocin. The ability to dilute milk under similar conditions of water stress has also been demonstrated in women and in cows. Milk dilution is not known in other mammals. Dilution of milk involves reductions of fat, lactose, protein, calcium and magnesium but increases in sodium,...
8/30/2018 3:04:55 AM +00:00
Nuclear Technology for a SUSTAINABLE FUTURE
When animals are selected from farmers’ herds, ideally farmers involved in the selection programme will have several cows, so that animals can be compared both within and across herds. When purchasing bull calves or females for future bulls, AI service providers have to consider the production and reproduction records, general appearance, breed makeup and pedigree performance of the cow. The most accurate way to select the best cows will be to perform a statistical analysis to obtain a genetic evaluation. Many factors other than genetics will affect an animal’s production. Among these factors are herd management, age, and time...
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The Carbon and Global Warming Potential Impacts of Organic Farming: Does It Have a Significant Role in an Energy Constrained World?
Capital ownership costs for milk production (economic depreciation and interest) are computed using the capital recovery approach. Capital recovery is an estimate of the cost of replacing the capital investment for cattle housing, milking facilities, feed storage structures, manure handling and storage structures, feed handling equipment, tractors, trucks, and purchased dairy herd replacements used up in the annual production process, plus interest that the remaining capital could have earned in an alternative use. These costs were computed based on 2005 replacement cost estimates for the dairy assets reported by farmers in the ARMS. Farm expenditures on non- real...
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Energy Efficiency in the Brewing Industry National Conference on Thermal Energy Management in the Food & Drink Industries
With an annual human population growth rate of 2.4%, the present 77.4 million Ethiopia’s human population will increase to about 149.3 million by the year 2040 (FAO 2005). The rural to urban ratio will also continue to change and is expected to increase in favour of urban population in the coming 25 years. The current rural and urban distribution of 84.7% and 15.3% will gradually reach 80.1% and 19.9% by the year 2020 (CSA 2008). Vulnerable age groups (up to 14 years) will account for 34% of the population. Thus, the demand for animal products is expected to increase substantially....
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Electrochemical Production of Metal Powders
The present volume ofModern Aspects of Electrochemistrybrings readers the newest developments and achievements in the product ion of metallic powders by electrochemical and electroless methods from aqueous solutions. Although the deposition of metallic powders from aqueous solutions was intensively studied for years, the last summarized results (Calusaru) on this topic were published in 1979. Electrochemically and chemically produced metal powders from aqueous solutions are of high purity. These powders find applications in metallurgy, automotive, aerospace, energy device, electronics, and biomedical industries. Disperse deposits and electrochemically pro duced metal powders are also very suitable for use as catalytic surfaces in chemical industry....
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Energy management A comprehensive guide to controlling energy use
Moreover, school financial aid officials said that under the Direct Loan Program they were also able to easily change the amount of a loan if needed. For example, schools can adjust the amount of a Direct Loan to reflect changes in students’ courseload or increases in grant and scholarship aid—events that could affect the loan amount available to borrowers. The fourth factor—ease of tracking student loans over time— was important because the Direct Loan Program improved the loan process for students. Under the Direct Loan Program, for example, student borrowers could easily track their loans because the same lender held the loans through repayment, which was often not the...
8/30/2018 2:56:57 AM +00:00
Năng lượng gió & Ứng dụng
Thủy điện -Đã xuất hiện từ hơn 70 năm trước đây, và đã là nguồn hy vọng cho nhân loại trong một thời gian dài. -Các đập thủy điện được tiếp nối xây dựng ồ ạt. Năng lượng mặt trời. là nguồn năng lượng tự nhiên không gây ô nhiễm và vô cùng dồi dào. Năng lượng sinh khối. Năng lượng thủy triều và Nhiệt năng biển. Năng lượng địa nhiệt.
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THERMAL POWER PLANTS - ADVANCED APPLICATIONS
Thermal power plants are one of the most important process industries for engineering professionals. Over the past decades, the power sector is facing a number of critical issues; however, the most fundamental challenge is meeting the growing power demand in sustainable and efficient ways. Practicing power plant engineers not only look after operation and maintenance of the plant, but, also look after range of activities including research and development, starting from power generation to environmental aspects of power plants. The book Thermal Power Plants - Advanced Applications introduces analysis of plant performance, energy efficiency, combustion, heat transfer, renewable power generation,...
8/30/2018 2:56:32 AM +00:00
CHỦ ĐỀ: ĐO NHIỆT TRỊ NHIÊN LIỆU
Một tính chất cơ bản của nhiên liệu là năng suất tỏa nhiệt ( hay nhiệt trị ) của nó. Cùng với các tính chất khác của nhiên liệu, nhiệt trị có tầm quan trọng trong việc chế tạo các thiết bị nhiệt có khả năng chuyển hóa dễ dàng nhiên liệu thành công có ích một cách hiệu quả. Nhiệt trị của nhiên liệu là lượng nhiệt được giải phóng ra khi nó cháy hoàn toàn với oxy và ngưng tụ các sản phẩm tới một nhiệt độ xác định....
8/30/2018 2:56:31 AM +00:00
THERMAL-HYDRAULIC IN NUCLEAR REACTOR
I. Introduction An important aspect of nuclear reactor core analysis involves the determination of the optimal coolant flow distribution and pressure drop across the reactor core. On the one hand, higher coolant flow rates will lead to better heat transfer coefficients and higher Critical Heat Flux (CHF) limits. On the other hand, higher flows rates will also in large pressure drops across the reactor core, hence larger required pumping powers and larger dynamic loads on the core components. Thus, the role of the hydrodynamic and thermal-hydraulic analysis is to find proper operating conditions that assure both safe and economical operation of...
8/30/2018 2:52:56 AM +00:00
USC Dornsife College of Letters, Arts and Sciences
However, credit risk of trade intermediaries, i.e. power traders, not being backed with as large tangible assets as energy generators, and earning a competitive profit margin on energy trade, might be considered as a category of players needing to model their credit risks at a most advanced level by replicating the already mature financial companies’ expertise. The present study addresses the above underlined issues in a more detail while having a particular focus on credit risk issues in the energy sector. ...
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EARTHQUAKE RESEARCH AND ANALYSIS - NEW ADVANCES IN SEISMOLOGY
The mitigation of earthquake-related hazards represents a key role in the modern society. The main goal of this book is to present 9 scientific papers focusing on new research and results on earthquake seismology. Chapters of this book focus on several aspect of seismology ranging from historical earthquake analysis, seismotectonics, and damage estimation of critical facilities.
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LIQUID, GASEOUS AND SOLID BIOFUELS CONVERSION TECHNIQUES
This book offers reviews of state-of-the-art conversion techniques for biofuels. It focuses on the latest development for the production of liquid and gaseous biofuels that should be of interest to the chemical scientists and technologists.
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Dự án hướng dẫn công nghệ xây dựng hầm biogas VACVINA cải tiến
Hợp chất hữu cơ tồn tại ở nhiều dạng khác nhau trong cuộc sống, chủ yếu là các sinh vật chết và phân động vật. Hợp chất hữu được cấu tạo chủ yếu từ Cacbon kết hợp với một số nguyên tố khác như H, O, N, S...v..v.. tạo nên các hợp chất được gọi là cacbonhydrat, protein và lipit. Trong tự nhiên, xác chết và các hợp chất hữu cơ sẽ được xử lý nhanh chóng bởi vi sinh vật chủ yếu là vi khuẩn thông qua quá trình phân huỷ bằng việc bẻ gãy mạch cácbon phức tạp...
8/30/2018 2:44:15 AM +00:00
Tiết kiệm năng lượng phải từ ý thức và kiến trúc
Tuy nhiên, cũng cần nói thêm là với các toà nhà, nếu tận dụng được ánh sáng tự nhiên thì chắc chắn sẽ không phải lãng phí tiền điện vào ban ngày. Theo một chuyên gia về năng lượng, đã nói đến tiết kiệm năng lượng là phải nói đến kiến trúc vì chính kiến trúc sẽ quyết định việc cho phép tiết kiệm năng lượng được đến đâu. Xây dựng một toà nhà mà kiến trúc của nó không tính đến việc đó thì mọi giải pháp kỹ thuật dù có tân tiến đến đâu cũng khó có thể...
8/30/2018 2:44:14 AM +00:00
Advances in Wind Power
Today’s wind energy industry is at a crossroads. Global economic instability has threatened or eliminated many financial incentives that have been important to the development of specific markets. Such economic sponsorship of energy generation is not unique to renewables; fossil based sources are also subsidized in many different countries. However, for a technology like wind energy whose markets are still developing, incentives can be critical for industry growth. Industry proponents have decreed that long-term energy policy that survives financial swings and changes in government is what is needed to provide the stability that market investors seek. While this may be the case, in the mean time, the pressure...
8/30/2018 2:44:13 AM +00:00
Basic Electronic Troubleshootng For Biomedical Technicians
Working with biomedical electronics in the healthcare environment is an exciting and rewarding career. Our goal is to bring that career challenge to the student with mechanical and critical thinking abilities in addition to a compassion for those suffering from medical maladies. And, given that healthcare is evolving into a technological monolith, the available technology is changing the ways doctors and nurses treat their patients. Maintaining and repairing medical devices is distinctly correlated to the healthcare profession itself. The biomedical troubleshooting process requires clinical knowledge of the device and its application. An error in judgment during the repair of...
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Electrical Power
If each voltage is connected to a circuit with the same power factor and the three currents return along the same conductor, then the vector sum of the three return currents is zero. Thus instead of three full sized return cables, only one of smaller size is needed. If none of the load is single phase, then the neutral is not needed at all. High voltage supplies are nearly always three phase without a neutral conductor. There is a great economy in distribution costs if the electricity can be supplied in three phases. ...
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The Energy Conservation
The issue of energy conservation has been with us since the seventies and there has not been a dearth of ideas and increase of knowledge arising from research from various disciplines ever since. The importanceof energy conservation has been on the increase that has resulted in the need toproduce books to introduce new and richer findings and applications in this field. This book comprises of nine chapters which cover several disciplines. Each chapter has been carefully written by leading teams of experts from various parts of the world. This publication of book has been intended to look deeply into the...
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Energy Efficiency – The Innovative Ways for Smart Energy
The objective of this book is to present different programs and practical applications for energy efficiency in sufficient depth. The approach is given to transfer the long academic and practical experiences from researchers in the field of energy engineering to readers. The book is enabling readers to reach a sound understanding of a broad range of different topics related to energy efficiency. The book is highly recommended for engineers, researchers and technical staff involved in energy efficiency programs. Energy efficiency is a relatively quick and effective way to minimize depletion of resources. It is the way for the future development...
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Energy Storage – Technologies and Applications - Ahmed Faheem Zobaa
Overall structure of electrical power system isin 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]. Factors forcing these considerations are (a) the increasing demand for electric power by both developed and developing countries, (b) many developing countries lacking the resources to build power plants and distribution networks, (c) some industrialized countries facing insufficient power generation and (d) greenhouse gas emission and climate change concerns. Renewable energy sources such as wind turbines, photovoltaic...
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Nuclear Power – Practical Aspects
Nuclear power approximately supplies a sixth of the world's electricity and considers as the major source of carbon-free energy today. With growing concerns aboutglobal warming, it is not surprising that governments and power providers around the world are considering building a substantial number of additional nuclear power plants. These plants have demonstrated remarkable reliability and efficiency with the help of extensive research work and sharing operational practical experience. Therefore, the materials of this book are collected with emphasis on the practical aspects of modern nuclear power around the world. However, the presentation is not entirely technical because, there are several...
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AN UPDATE ON POWER QUALITY
There is an upward trend that human activities involve more electric power nowadays and for years to come. And we will soon be facing shortage of electricity supply if we rely solely on non-renewable power generation from fossil fuels such as coals. Renewable energy generation has proven effective in meeting the demand. At the same time it has brought about a few issues to existing electricity infrastructure such as complex power flow due to distributed generations and unstable grid voltage and/or frequency profiles due to local generation and intermittent nature of renewable energy sources such as solar photovoltaicand wind power....
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EXPLOSIVE PULSED POWER
The objective of this book is to acquaint the reader with explosive driven pulsed power devices, theory and applications. This includes those devices that convert the chemical energy stored in high explosives into electrical energy and that use shock waves generated by the explosives to release the energy stored in ferromagnetic or ferroelectric materials in the form of electrical energy. The reader might well ask why one should use explosive driven pulsed power for any application, since it is inherently single shot in nature. There are really two very different answers to this question. First, explosives store the greatest amount of energy per unit mass (4MJ/kg) or per unit...
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Concentrating solar power technology
During this century the human race will have to address the challenge of deeply transforming the world energy system to make it much more sustain- able and environmentally friendly than the one we currently have. To achieve this, it will have to substantially increase the market penetration of all types of renewable energy technologies, and especially of solar technolo- gies, since these technologies will be called upon to be the main pillars of the new world energy system, because of the vast quantities and the high quality of the solar energy reaching the Earth at every instant....
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ENERGY TECHNOLOGY PERSPECTIVE
The previous edition of Energy Technology Perspectives(ETP), published in summer 2008, called for an energy technology revolution to tackle the undesirable consequences of our current patterns of energy supply and use. It also highlighted that, if we did not alter course, concerns about energy security and the threat of dangerous climate change would only become much worse. So what – if any – progress have we made over the last two years in meeting these challenges? At first sight, it may seem as though not much has changed. Countries are still discussing what a long-term climate change framework should look like,...
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The art child policy civil justice education energy and enviriment health and health cara international affair
This document and trademark(s) contained herein are protected by law as indicated in a notice appearing later in this work. This electronic representation of RAND intellectual property is provided for noncommercial use only. Permission is required
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Các loại nhà máy đện năng lượng mặ trời
Khi chúng ta nghĩ về các nhà máy điện, chúng ta thường nghĩ tới những tổ hợp tập trung to lớn với tháp làm mát cùng hệ thống ống khói khổng lồ. Về mặt khái niệm, một nhà máy điện chỉ là một sự cài đặt kỹ thuật, cái biến đổi sự cung cấp một dạng năng lượng cụ thể thành điện năng. Một nhà máy điện mặt trời sẽ sản xuất ra điện từ các tia mặt trời. 1. Parabolic trough power plants Giống như tên gọi, trong nhà máy điện dạng hình máng parabol có rất nhiều tấm gương...
8/30/2018 2:39:55 AM +00:00
Nhà máy điện năng lượng mặt trời
Tham khảo bài thuyết trình 'nhà máy điện năng lượng mặt trời', kỹ thuật - công nghệ, năng lượng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả
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Điện mặt trời
Điện mặt trời (tiếng Anh: Photovoltaics - PV) là lĩnh vực nghiên cứu và ứng dụng kỹ thuật biến đổi ánh sáng mặt trời trực tiếp thành điện năng nhờ pin mặt trời. Ngày nay, do nhu cầu năng lượng sạch ngày càng nhiều nên ngành sản xuất pin mặt trời phát triển cực kỳ nhanh chóng. Sản lượng điện mặt trời tăng 48% một năm kể từ 2002, nghĩa là cứ hai năm lại tăng gấp đôi và đã giúp ngành năng lượng này đạt tốc độ tăng trưởng cao nhất thế giới. Dữ liệu đến hết năm 2007 cho...
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