Comparision of profit analysis of a two – Unit cold standby system with instruction and preparation time for repair

Abstract

The comparative study of the profit of a two-unit cold standby system with instruction and preparation time for repair is carried out. The repair man (who is an expert) does not come alone but he comes with his assistant. If the expert repair man is busy in repairing a failed unit and second unit fails then the assistant repairman repairs the latter unit after getting instructions from expert repairman. The paper consists of two models. In model-1 expert repairman takes the unit for repair from his assistant if he completes the repair earlier than his assistant whereas in model-2 either of the repairman (expert or his assistant) do not leave the repair till its completion.