Paper

A statistical approach to abstract and predict turbine states in an online manner has been developed. Online inference is performed on temperature measurement residuals to predict the failure state ∆n steps ahead of time. In this framework a case study is performed showing the ability to predict bearing failure 33 …

There is a fast depletion of renewable sources that was used in the past for the generation of electricity and the difficulty in reachability of the grid supply to the remote villages was a big challenge faced. The best possible remedial measure in this scenario is to make use of …

The generation of renewable electricity is becoming increasingly cost-effective and efficient so that a different set of challenges have arisen that need to be overcome. The most pressing of these is the development of viable. ‘green’ ways to store this energy as carbon-carbon bonds. Natural photosynthesis provides a ready blue …

Solid particles impair the performance of the photovoltaic (PV) modules. This results in power losses which lower the efficiency of the system as well as the increases of temperature which additionally decreases the performance and lifetime. The deposited dust chemical composition. concentration and formation of a dust layer on the …

The paper reports use of silicone oil as spectrum filter and heat absorber for photovoltaic thermal systems. The terrestrial solar spectrum is in the wavelength range of 0.25 to 2.5 μm. The response range of C-Si solar cell is 0.75 to 1.125 μm. In the current study. the feasibility of …

Purpose– Faults in the actual outdoor performance of Building Integrated Photovoltaic (BIPV) systems can go unnoticed for several months since the energy productions are subject to significant variations that could mask faulty behaviors. Even large BIPV energy deficits could be hard to detect. The purpose of this paper is to …

The basic component of two-circuit geothermal systems is the heat exchanger. When used in geothermal power systems. conventional shell-and-tube and plate heat exchangers cause problems related to the cleaning of the latter from salt-deposition and corrosion products. Their lifetime does not exceed. as a rule. 1 year. To utilize the …

Lifetime of wind turbine inverters is below expectations therefore. novel design and drive strategies are timely required to achieve optimum life span. In this work. a novel driving strategy to mitigate stresses on inverters is proposed. First. an electro thermal analysis was carried out using finite element modelling methods. Subsequently. …

This paper presents the design and test of a single phase and thermoelectric cooling Micro-Inverter using a DC-DC interleaved isolated boost. It focuses on the optimization of (DC-DC and DC-AC) converters performances and its physical dimensions. and presents an efficient method to track the maximum power point and the load …

The characterized wind electricity generation systems were statistically evaluated to assess the reduction in life cycle GHG emissions. A total of five unique categorization codes (HAWT-ON-S. HAWT-ON-I. HAWT-ON-L. HAWT- OFF-L. VAWT-ON-S) were designated to the 29 wind electricity generation LCA studies (representing 74 wind system cases) using the proposed categorization …