• Wind power: technology brief

    Mar 2017 / by Paul Lako and Masaomi Koyama

    Following the invention of the electric generator, engineers began harnessing wind energy to produce electricity. Wind power generation succeeded in the United Kingdom (UK) and the United States in 1887-1888. However, modern wind power is said to have started in Denmark, where horizontal-axis wind turbines were built in Askov in 1891, and a 22.8 metre wind turbine for electric generation started operation in 1897. Since then, wind generation has spread from Europe and the United States to the world. Most new wind power projects have turbine capacities of around 2 MW onshore and 3-5 MW offshore.

    China’s solar energy scenarios and simulation analysis based on Bayesian methodology

    Mar 2017 / by Hua Zhen

    This paper analyzes the driving forces and key uncertainties of solar development in China, and identifies prior and posterior probability of the key uncertain factors. Thenthree scenarios of China’s solar energy development are established by using Bayesian approach: best, standard and worst scenarios thatwill provide the central government reference while making strategies on energy development in China.
    Keywords: Solar; scenario; Bayesian; China

    Meander migration in the Ganga-Padma system in India and Bangladesh: analysis, estimation of migration and control

    Mar 2017 / by Amartya Kumar Bhattacharya

    This study focusses on the issue of the migration of the meandering Ganga-Padma river system in India and Bangladesh. The problem is particularly severe at Jalangii in India where the Padma river forms an international boundary. Appropriate remedial measures are suggested to arrest bank erosion on the Indian side at Jalangi.

    Hydrodynamic character of Ichamati: impact of human activities and tidal river management (TRM), W. B., India

    Mar 2017 / by Madhab Mondal and Lakshminarayan Satpati

    Tidal river is characterized by bi-directional flow current and water level fluctuates over time and astronomical position of the Sun, the Moon and the Earth. The study of tidal river system has been marked by difficulty owing to the complex hydrodynamics and become more complex when it is modified by human activities. In this paper we have focused mainly on the abrupt loss of river energy along with the other hydraulic parameter such as gauge height, velocity profile, discharge pattern, calculation of tidal prism of Ichamati river. The study reveals that the head loss of the river is 38.2% from Basirhat to Tentulia due to water extraction from the river by brick kilns and by river pumps. River bed also uplifted by the confinement of sediment borne water by man-made embankment. Tidal river management (TRM) is such a way that can improve this problems.
    Keywords: Tidal river, complex hydrodynamics, gauge height, velocity profile, discharge pattern, tidal prism, head loss, man-made embankment, TRM

  • Affiliates

  • Subscribe with us