Results 71 to 80 of about 41,313 (261)
Vertical axis wind turbine drive train transient dynamics [PDF]
, 1982 Start up of a vertical axis wind turbine causes transient torque oscillations in the drive train with peak torques which may be over two and one half times the rated torque of the turbine.
Carne, T. G., Clauss, D. B.
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Experimental Investigation of Microbubble Evolution in the Liquivac Multiphase Flow Pump
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT This paper aims to experimentally investigate the mechanisms of microbubble characteristics evolution within an axial pump. The findings will aid in assessing the pump performance by identifying the range of bubble sizes and comparing them with the threshold size (< 300 μm). This study also provides evidence supporting the use of such pumps as
Hamad FA +4 more
wiley +1 more source
Test results of the DOE/Sandia 17 meter VAWT [PDF]
, 1979 A review is given of the test program of a 17 meter Vertical Axis Wind Turbine VAWT. Performance test results are discussed including difficulties encountered during the VAWT operation along with ways of solving these ...
Nellums, R. O., Worstell, M. H.
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Turbulence in vertical axis wind turbine canopies [PDF]
, 2015 Experimental results from three different full scale arrays of vertical-axis wind turbines (VAWTs) under natural wind conditions are presented. The wind velocities throughout the turbine arrays are measured using a portable meteorological tower with ...
Araya, Daniel B. +2 more
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The Anatomical Record, EarlyView.Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo +5 more
wiley +1 more source
Vertical-axis wind turbines. Design technique
IOP Conference Series: Earth and Environmental Science, 2021 Abstract The paper highlights the prospects for development of vertical-axis wind turbines in the world and in Russia. Vertical-axis wind turbines are considered, and their general characteristics and their advantages and disadvantages are provided.
S V Gribkov, S N Chizhma
openaire +1 more source
Simulation of Vertical Axis Wind Turbines With Variable Pitch Foils [PDF]
, 2013 A dynamic computer model of a turbine was developed in MATLAB in order to study the behavior of vertical axis wind turbines (VAWTs) with variable pitch (articulating) foils. The simulation results corroborated the findings of several empirical studies on
Gardner, John F. +2 more
core +2 more sources
Automated Process Optimization in a Novel Triple Shaft Mixer with Adaptive Mixing Modes
Chemie Ingenieur Technik, EarlyView.A novel multi‐purpose mixer with adjustable blade angle and a coaxial stirrer is developed, providing three degrees of freedom. An optimization strategy is integrated to autonomously identify optimal operating conditions through automated tests. The current draw of the main stirrer serves as the optimization criterion, while stirrer speeds, directions,
B. Schwarz, H. Kniele, J. A. Lindner
wiley +1 more source
Fabrication of extruded vertical axis turbine blades [PDF]
, 1979 Important characteristics of the extruded aluminum blade for the Vertical Axis Wind Turbine are presented.
Craig, A. G., Jr.
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Deep Underground Science and Engineering, EarlyView.Upon conceptualization of structural behavior, foundations in terms of their form are divided into linear (1D), planar (2D), and volumetric (3D). Regarding the load transfer mechanisms, linear foundation systems are considered vector‐acting, planar foundations are divided into section and surface‐acting, and volumetric ones are recognized as block ...
Abolfazl Eslami +4 more
wiley +1 more source