Availability and Cost-Benefit analysis of two similar cold standby system under the influence of snowstorm causing rescue operation

This paper explores the effects of snowstorm as abnormal weather on two unit not similar cold standby system. In this system after snowstorm has ended, rescue operation starts first digging out start after complete the digging out snow removing start and then hospitalization of the system (human) starts as a repair. The system has only a single repairman which has different types of repair rates and the failure rate due to snowstorm follow exponential distributions and different repair rates follow different general time distributions. By using the concept of semi-Markov process the efficiency of system such as expected profit, availability analysis and mean time to system failure are obtained. In the end, numerical results, various graphs are presented to illustrate the behaviour of the various reliability characteristic consequent.