Mean Time to Achieve a Failure-Free Requirement under Provisions of Spare and Repair
This paper obtains an expression for the mean test-time to achieve a failure-free requirement under the provisions of spare and repair.
Mean Time to Achieve a Failure-Free Requirement
A common reliability test procedure is to test until a given, consecutive, failure-free time has passed. This paper gives expressions for the mean time to test completion, for both elapsed and operating time, for general probability distributions. The situations in which the test is monitored periodically and the repair time is not zero are considered. The standard deviation of completion time is also discussed. The special case in which the time-to-failure distribution is exponential is treated in some detail.
Research on velocity distribution in semi-dry flue gas desulfurization tower
As an accurate high-quality instantaneous measurement technology, particle image velocimetry (PIV in acronym) has applied widely in single-phase flow and multiphase flow. The velocity distribution in semi-dry FGD tower directly influences gas-solid mix and contact situation. In base of the tower, gas-solid two-phase flow field is more complex, and has the quite tremendous influence to the overall system desulphurization efficiency. This paper utilized PIV to study velocity distribution in Semi-dry flue gas desulfurization tower and obtained velocity distribution.