• Dr. Savita Deswal

: The influence of weather on the performance measures of two redundant repairable systems are compared. Both system comprises of two non-identical units namely main unit (original unit) and duplicate unit (substandard unit). Both units are capable of performing the same set of activities with different efficiency. The influence of weather is completely ignored for system I, while system II is operating under different weather conditions – normal and abnormal. Effective performance measures for both the system are obtained in steady state by using semi-Markov process and regenerative point technique. For both the systems, initially, one original unit is operative while the other substandard unit is taken as a spare in cold standby. Each unit has direct complete failure from normal mode. A single server is provided immediately to do repair of the failed unit. However, in system II repair is not allowed in abnormal weather while system remains operative. Priority is given to operation and repair of main unit over duplicate unit. The distributions for failure time of the units and time to change of weather conditions are taken as negative exponential while that of repair time of the units are arbitrary. All random variables are statistically independent. Repairs and switch devices are perfect. Graphs are drawn to depict the behavior of MTSF, availability and profit with respect to normal weather rates for arbitrary values of various parameters and costs.

Redundant System, Semi-Markov process, Regenerative Point Technique, Performance Measures

"Effect of Weather on Priority Based Redundant System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 3, page no.96-104, March-2018, Available :http://www.jetir.org/papers/JETIR1803430.pdf

"Effect of Weather on Priority Based Redundant System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 3, page no. pp96-104, March-2018, Available at : http://www.jetir.org/papers/JETIR1803430.pdf