A conveyor system with homogeneous and heterogeneous servers with dual input

SUMMARY The basic objective of this paper is to investigate the ordered entry conveyor serviced production system with dual input, and to analyse the probabilistic nature of such a system through the application of queueing theory. A mathematical model was developed for the three channel ordered entry conveyor system with two types of arrivals having independent Poisson distribution. The paper develops the steady-state probabilities and the system's measures of performance for the following cases: (1)The unserviced units areconsidered ‘lost’ to the system allowing either homogeneous or heterogeneous servers at the service channels. (2)The unserviced units are allowed to recirculate and enter the system as a new arrival. For each case, the steady-state probabilities and the system's measures of performance are evaluated.