Hydropower

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  • In this study, regression analysis was used for estimating the relationships among water quality parameters measured at the Son La hydropower reservoir and the fluxes of greenhouse gas emissions from the reservoir. The regression analysis was also applied to develop regression equations predicting emissions of greenhouse gases from the lake.

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  • With the aim to develop hydropower potential of the Lower Mekong Basin (LMB) and not to cause substantial impacts to natural environment, in 1980s and early 1990s of the last century, the then Interim Mekong Committee had studied a cascade of run-of-river hydropower projects in the Mekong mainstream. In 2008, Hydropower Development Programme of the Mekong River Committee (MRC) proposed a scenario consisting of 11 run-of-river hydropower projects. Luangprabang hydropower (LHP) is the second cascade in Laos and the tenth cascade from upstream of Lancang- Mekong river.

    pdf7p dem_thanh 22-12-2012 16 3   Download

  • This paper presents an analysis of the benefits of climate change adaptation from small and medium scale hydropower plants in Lao Cai Province. Lao Cai is a mountainous province with high hydropower potential. Totally 116 small and medium hydropower projects in different stages of development have been identified with installed capacities ranging from 0.9 MW to 60 MW. Based on the results of statistic downscaling, four climate change scenarios were developed for the Lao Cai province area.

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  • The paper provides a low-head hydropower energy resource harvester (HyPER) design of 4-blade impeller with a fixed pitch blade angle. Based on a previous site evaluation and maximum power potential estimated without any modifications to the irrigation structure, the proposed objective of exploiting the estimated power will be met from harvester prototypes with portable, compact modular design.

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  • The design and manufacturing of a revolutionary hydropower harvester with characteristics that embrace the ecology and the environment is described. Guided by NEPA standards for environmental protection, the design concept incorporates a modular and self-supporting structure with a vertical-axis turbine-generator system that is: a) fabricated using Fiberglass and Carboncomposites and is light weight, and b) is easy to manufacture and assemble utilizing offthe-shelf electromechanical components and deploy to produce the desired power.

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  • Năng lượng thay thế ( Alternative energy ) là năng lượng thu được từ những nguồn ngoài 3 dạng Nhiên liệu hóa thạch ( Fossil Fuel ): Than đá ( coal ), Dầu mỏ ( oil ) và Khí tự nhiên ( Natural gas ). Những nguồn năng lượng thay thế này bao gồm: Năng lượng hạt nhân ( Nuclear power ), Năng lượng mặt trời ( Solar power ), Năng lượng gió ( Wind power ),Năng lượng địa nhiệt ( Geothermal energy ), Năng lượng sinh khối ( Biomass energy ), Năng lượng nước ( Hydropower ) và một...

    pdf7p konbetocroi 18-09-2012 206 92   Download

  • Kiến thức về mối quan hệ giữa thủy điện và lũ lụt ở Việt Nam 1 GIỚI THIỆU Mục đích gồm (1) trình bày một số khái niệm căn bản của kỹ thuật thủy điện (hydropower engineering) cho những người không ở trong ngành chuyên môn này; và (2) bàn về vấn đề lũ lụt ở Việt Nam và vai trò các hồ chứa thủy điện. Một số danh từ kỹ thuật tiếng Việt được chua thêm tiếng Anh trong ngoặc đơn để làm rõ nghĩa hơn.

    pdf6p ctnhukieu3 30-04-2011 134 55   Download

  • Vietnam‟s hydro-power resources are very plentiful and distributed widespread in national scope. Vietnam is one of 14 countries which are rich in hydro-electric resources in the world. Total hydro-power resources potential of more than 2200 mini, medium and large rivers (just mention rivers with more than 10 km in length) in national scope is assessed as follows:

    pdf53p xuantruong 12-06-2009 133 30   Download

  • Energy is defined as the ability to do work. Energy is found in different forms, such as heat, light, motion, and sound. There are many forms of energy, but they can all be put into two categories: kinetic and potential. Electrical, radiant, thermal, motion, and sound energies are kinetic; chemical, stored mechanical, nuclear, and gravitational energies are potential forms of energy

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  • Hydrodynamics has experienced a long history. A substantial growth of knowledge in this field has been happening since the 18th century. It is applicable in a wide variety of areas, such as ocean engineering, environmental engineering, water conservancy, energy exploration, and chemical engineering, to name a few. Over the past several decades, good progress has been made in physical models, computational methods, and theoretical studies, which significantly expanded the understanding and the engineering implications of hydrodynamics....

    pdf332p orchid_1 25-09-2012 53 9   Download

  • Dự án thủy điện 790 MW Yeywa nằm trên sông Myitinge (thấp hơn tầm với của Nam Tu Sông), khoảng 50 km về phía đông nam Mandalay ở miền trung Myanmar. Dự án bao gồm chủ yếu của một cao 134m đầm lăn đập bê tông (RCCD) với một trạm điện 790 MW nằm trên bờ trái dưới chân đập và đập tràn ungated nằm ở phần trung tâm của đập nước lũ thải.

    pdf0p doquyenhong 31-10-2011 37 7   Download

  • Hydrology is a branch of scientific and engineering discipline that deals with the occurrence, distribution, movement, and properties of the waters of the earth. A knowledge of hydrology is fundamental to water and environmental professionals (engineers, scientists and decision makers) in such tasks as the design and operation of water resources, wastewater treatment, irrigation, flood defence, navigation, pollution control, hydropower, ecosystem modelling, etc.

    pdf145p tuanloc_do 04-12-2012 41 5   Download

  • In the current five-year plan (1991-1995), China plans to place greatest efforts on developing infrastructure, particularly thermoelectric and hydropower installations, new railway systems, large deep-sea ports, a national phone network, and food processing and chemical plants. Local governments also have their own blue prints for local construction besides the central government integrative plan. For example, Guangxi province has 24 new and rebuilt major projects in 1992.

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  • Hydraulics is a branch of scientific and engineering discipline that deals with the mechanical properties of fluids, mainly water. It is widely applied in many civil and environmental engineering systems (water resources management, flood defence, harbour and port, bridge, building, environment protection, hydropower, irrigation, ecosystem, etc). This is an introductory book on hydraulics and written for undergraduate students in civil and environmental engineering, environmental science and geography.

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  • A slight loss of refrigerant is recognized by ‘bubbles’ in the liquid-indicating sight glass installed in the liquid line of a system, a loss of performance, partial frosting of the evaporator and lower than normal operating pressures. Refrigerant may be added in vapour form to the low side of the system if the refrigerant is azeotropic such as R502. This means that it reacts as a single substance refrigerant. The zeotropic refrigerant blends do not react in a similar manner and they should be added to a system in liquid form. ...

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  • All rights reserved. World Health Organization, 20 Avenue Appia, 1211 Geneva 27, Switzerland (tel.: +41 22 791 3264; fax: +41 22 791 4857). Requests for permission to reproduce or translate WHO publications – whether for sale or for noncommercial distribution – should be addressed to WHO Press, at the above address (fax: +41 22 791 4806; e-mail: permissions@who.int).

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  • Few issues display more clearly the competition between China’s drive to become economically developed and to conserve biodiversity than hydropower development. This is the subject of China’s most recent environmental controversy. In August 2003, the National Development and Reform Commission, a powerful economics super-ministry, authorized construction of a 13-station dam along the Nu1 River (Nujiang) in Yunnan Province. After at least a decade of construction, the dam would become the world’s largest.

    pdf253p coeus75 29-01-2013 21 3   Download

  • The purpose of this study was to investigate the operation of the Hoabinh reservoir in the Red River Basin of Vietnam, and assess the room for its improvement by application of system analysis and optimal control techniques. The study aimed at establishing a foundation for further research on inter-reservoir regulation of the Basin. Finally, this study provided a testing ground for developing and comparing dierent reservoir optimization methods.

    pdf138p xuanquachthi 08-06-2013 72 3   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.

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  • The Son La hydro plant was built during 2005-2012, and it was stated that its completion was two years earlier than it had been set in the plan. Quick preparations for the resettlement and short time for calculation and disbursement of compensation were the main factors contributing to the earlier completion of the construction.

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