Profit analysis of a two-unit cold standby system with abnormal weather condition

This paper deals with the profit function analysis of a two-unit standby system under two weather conditions—normal and abnormal (stormy). The units are non-identical and each has two modes—normal and total failure. A single repair facility is available in normal weather to repair a failed unit. Failure rates of both units and the rate of change of weather conditions are constant, whereas the repair rates are general. The system is observed at suitable regenerative epochs to obtain various reliability characteristics and numerical results for a particular case are evaluated.