Now showing items 1-10 of 335
Microgeração de energia elétrica (Abaixo de 100 kW) utilizando turbina Tesla modificada
An economical electricity generating system is developed, i.e., a boiler and turbine with a capacity ≤ 100 kw, to occupy a niche market where the existing steam systems are not economically viable. A Tesla turbine is used. ...
An Integrated Procedure for the Structural Design of a Composite Rotor-Hydrofoil of a Water Current Turbine (WCT)
This paper shows an integrated structural design optimization of a composite rotor-hydrofoil of a water current turbine by means the finite elements method (FEM), using a Serial/Parallel mixing theory coupled with a ...
Thermoeconomic analysis of a cogeneration system of a university campus
In this paper, a thermoeconomic analysis method based on the First and the Second Law of Thermodynamics and applied to analyse the replacement of an equipment of a cogeneration system is presented. The cogeneration system ...
A New Proposal Using a Turbine in the Reactor with a Cavitation System in the Biodiesel Synthesis
The present research investigates the effect of a cavitation system with a turbine in comparison to the vigorous stirring on the process of biodiesel synthesis by the transesterification reaction using oil (triglycerides) ...
A composite beam finite element for multibody dynamics: Application to large wind turbine modeling
This work presents a beam finite element with multibody capabilities for modeling high aspect ratio composite wind turbine components, particularly the tower and the blades. The proposed formulation is based on an Updated ...
Erosion-fatigue of steam turbine blades
(PERGAMON-ELSEVIER SCIENCE LTD, 2009)
The premature failure of steam turbine rotor blades, manufactured in forged 12% Cr-NiMoV martensitic stainless steel, was investigated using visual inspection non-destructive testing, macro and microfractography, microstructural ...
Thermodynamic analysis and comparison of downdraft gasifiers integrated with gas turbine, spark and compression ignition engines for distributed power generation
(Elsevier B.V., 2014-05-01)
The objective of the present article is to assess and compare the performance of electricity generation systems integrated with downdraft biomass gasifiers for distributed power generation. A model for estimating the ...
Modeling and robust control of a twin wind turbines structure
(Pergamon-Elsevier Science Ltd, 2017-12)
The control of a new structure of twin wind turbines (TWT) is presented in this paper. This new concept includes two identical wind turbines ridden on the same tower, which can pivot face the wind with no additional actuator. ...
Effect of turbine-blade cooling on the HAT (humid air turbine) cycle
(Pergamon-elsevier Science LtdOxfordInglaterra, 1997)
Performance evaluation of atmospheric biomass integrated gasifier combined cycle systems under different strategies for the use of low calorific gases
(Pergamon-elsevier Science LtdOxfordInglaterra, 2007)