FW: FW: Re: (erielack) More Hoboken stuff

["Paul R. Tupaczewski" <paultup_@_comcast.net>]

Per Randy Brown's suggestion, I forwarded this question to Preston Cook, who
graciously answered:


>Hi Paul,
>
>I am not a subscriber to the list but would be glad to answer this, feel
free to forward it along.
>
>EMD marine engines and virtually all other large diesel engines use a
closed loop cooling system running fresh water with coolant inhibitor. This
loop is
>in turn cooled through a heat exchanger, or various types of hull mounted
coolers.
>
>They normally do not run "raw" water for cooling, regardless of whether the
vessel is in salt, brackish, or fresh water at the time. The reason for this
>is that you cannot condition it with the coolant inhibitor when you are
dumping it right back overboard again, and you risk having sediment and
corrosion
>build up in cylinder heads, cylinder liners, and other water passages.
>
>Preston


The original question:


>If Preston Cook reads this list, he could answer any and all questions, 
>and even come up with some of his own -- this was his livlihood.
>
>Randy Brown
>--------------------------------------------------------------
>vze3fhdr wrote:
>> Bob:
>> 
>>    I know for a fact that the engine(s) exhausted through the stack 
>> as a conventional engine. If they were raw water cooled, using river 
>> water to cool the engine(s), I'm not sure.
>
>You are thinking of motor boats where the wate is inforduced into the 
>exhaust.  I meant a water cooled exhaust manifold which I believe is 
>required in marine service.
>
>The engines would not be directly cooled by the North River water as it  
>is brackish.  There would a be a heat exchanger for river water/engine 
>coolant.
>
>bob gillis
>> 
>>    Bill
>> ----- Original Message ----- From: "bob gillis" 
>> <robertgillis_@_verizon.net>
>> 
>>> EMD engines also had marine version which was different than the 
>>> locomotive version.  The engines (think there were two)in the 
>>> Lackawanna would have had watercooled manifolds, watercooled 
>>> exhausts and probably a different design generator and control and 
>>> other marine features.
>>>
>>> bob gillis


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