Final answer:
In the overboard vent system, the number of cryotainers that can be connected in a series when transporting them on an aircraft depends on the cryotainer capacity and the maximum allowable pressure drop. By calculating the flow rate, pressure drop, and the number of cryotainers that can be connected, you can determine the maximum number of cryotainers in a series.
Step-by-step explanation:
In the overboard vent system, cryotainers are connected in series when transporting them on an aircraft. The number of cryotainers that can be connected in a series depends on the capacity of each cryotainer and the limitations of the aircraft's vent system. To calculate the number of cryotainers that can be connected in series, you need to know two things: the cryotainer capacity and the maximum allowable pressure drop in the vent system.
Let's say each cryotainer has a capacity of 100 liters and the maximum allowable pressure drop is 10 psi. To prevent excessive pressure drop, the flow rate must be controlled.
- Determine the flow rate through each cryotainer. The flow rate should be within the limits of the vent system. Let's assume the flow rate is 2 liters per second.
- Calculate the pressure drop across each cryotainer. In this case, the pressure drop is 2 psi.
- Calculate the number of cryotainers that can be connected in series. To determine this, divide the maximum allowable pressure drop by the pressure drop across each cryotainer. In this case, 10 psi / 2 psi = 5 cryotainers.
Therefore, when transporting cryotainers on an aircraft using the overboard vent system, you can connect a maximum of 5 cryotainers in series.