The end of cruise ships, as we know them?

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Originally Posted by trout1105

I cannot believe that you asked that[bigwhistle]

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It’s a fair question really.

2-3 weeks after everyone is off - the virus is gone.

They could theoretically disinfect the vessel completely and it would be “good to go”

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Originally Posted by ramblingboy42

So you believe that a large inanimate object carried the virus to the passengers , the cruise ship carried and caused the spread of the virus?

That's impossible Trout . The passengers caused the spread themselves . I'm genuinely sorry for the loss of life , but it could have been prevented by good personal cleanliness and hygiene.

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And now it seems over the last few days, also by better Air Conditioning design, use & maintenance.


I did raise this way back but the response was that it should be impossible.

Lets face it, you cannot recirculate Virus Aerosol laden air & hope to get away with it. So much should & must be learnt from this C-19 business.

It was interesting that when we left Tassie on the Spirit of Tasmania they assured us that the aircon for each section of the vessel drew its air from outside and not from other parts of the vessel. AFAIK there have been no cases of the virus on the Spirit. So apparently it can be done.

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Originally Posted by DiscoMick

It was interesting that when we left Tassie on the Spirit of Tasmania they assured us that the aircon for each section of the vessel drew its air from outside and not from other parts of the vessel. AFAIK there have been no cases of the virus on the Spirit. So apparently it can be done.

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A full fresh air system,i doubt it,particularly when in a salt laden humid environment.

At the least, the system would be drawing return air from other cabins,with a small % of outside air.

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At the least, the system would be drawing return air from other cabins,with a small % of outside air.

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Yeah, that is the normal setup for a normal land based system & I can think of no reason to alter that design. Mick, it is a Pressurised setup because of the intake of outside air. Maybe Old Farang might have a view on it?

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Originally Posted by bob10

Did you have a go at driving a tinnie into the huge whirlpools? You whip around at a great rate of knots and fly out , better than a theme park. [thumbsupbig]

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No just the tourist run in the big speed boat there .

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Originally Posted by 4bee

Yeah, that is the normal setup for a normal land based system & I can think of no reason to alter that design. Mick, it is a Pressurised setup because of the intake of outside air. Maybe Old Farang might have a view on it?

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I have not worked on cruise ships, only big offshore drillings rigs with around 120 crew. All of them that I have worked on recirculate. A bit out of it now, but I believe the design criteria calls for something like the following:

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The current standard for inside and outside air in cruise ships requires they have 10 liters per second per passenger of outside air in a cabin, he said. The air inside a cabin that is returned, or carried, to other areas could be up to 90% of the total air in other spaces. In other words, that 90% could contain coronavirus if it came from an area where someone had the virus.

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That just gives the flow rate, does not mention the makeup ratio.

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Originally Posted by Old Farang

I have not worked on cruise ships, only big offshore drillings rigs with around 120 crew. All of them that I have worked on recirculate. A bit out of it now, but I believe the design criteria calls for something like the following:



That just gives the flow rate, does not mention the makeup ratio.

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Does that really mean just shut the stateroom door and open the the window (portholes are only good for the LHS)?

DL

Additional to Post #74 Re The Overlanders 1946


30 Oct 1947 - Meet Daphne Campbell - Trove

The current standard for inside and outside air in cruise ships requires they have 10 liters per second per passenger of outside air in a cabin, he said. The air inside a cabin that is returned, or carried, to other areas could be up to 90% of the total air in other spaces. In other words, that 90% could contain coronavirus if it came from an area where someone had the virus.

Thats not miles away from a land based system.
From memory,a classroom needs 5l/sec per person in the room.
But its a while since i have done a lot of AC design.

So there is a 99% chance the staff on the Spirit of Tassie were telling porkies.[bighmmm]