... that even though the time at operating temperature is about three times longer for fossil fuel powered (steady) operation, the damage is always lower than cyclic operation using solar power. concentrating solar power solar receiver Brayton cycle reliability metal fatigue creep high temperature...

.... Based on the fatigue life model predictions, it is shown that the thickness of die attach layer must be increased for high outlet temperature applications of the hybrid CPV/T collector. concentrating photovoltaic/thermal (CPV/T) thermal analysis reliability finite element method (FEM...

...Sanjay R. Arwade; Matthew A. Lackner; Mircea D. Grigoriu A Markov model for the performance of wind turbines is developed that accounts for component reliability and the effect of wind speed and turbine capacity on component reliability. The model is calibrated to the observed performance...

... will bring in new problems. At present, the typical commercial size is at 2.5 – 3 MW , while today there are operating designs up to 5 MW . Improving the design and at the same time increasing the reliability of the machines will be the main challenges for the next generation of wind...

...E. Echavarria; B. Hahn; G. J. W. van Bussel; T. Tomiyama This study attempts to obtain more detailed knowledge of failures of wind turbines (WTs) by using the German “ 250 MW Wind” test program database. Specific objectives are to show the reliability of some major components and to analyze how...

... structures due to this large heat flux. concentrating photovoltaic cell (CPV) thermal stress fatigue test viscoplastic life prediction reliability fatigue testing finite element analysis heat sinks solar cells stress analysis 17 04 2007 11 07 2007 20 03 2008...

...R. A. Enzenroth; K. L. Barth; W. S. Sampath; V. Manivannan In-line manufactured CdTe thin film photovoltaic devices were evaluated for their performance with respect to power conversion efficiency and reliability (stability). A National Renewable Energy Laboratory (NREL) certified power conversion...

..., October 2002. Associate Editor: V. Mei. 01 May 2002 01 October 2002 04 08 2003 refrigerators air conditioning electric motors compressors heat exchangers fault diagnosis reliability failure analysis With many engineering systems growing larger and more complex...

... by renters for most of its life. The system has been very reliable with the only repairs needed being the replacement of the secondary blower for water heating because of it being hard to access for periodic oiling. The ductwork has to be disassembled to oil the motor bearings. The motor has been replaced...

... heat exchanger appears preferable over a doubly pumped external heat exchanger, both in terms of system reliability and resistance to performance degradation. Contributed by the Solar Energy Division of The American Society of Mechanical Engineers for publication in the ASME JOURNAL OF SOLAR...

...Steven R. Winterstein; Tina Kashef A general method is shown here to model wind loads and responses for reliability applications. This method characterizes the short-term loads and responses by a few summary statistics: specifically, by a limited number of statistical moments. A suite of moment...