Subject: Re: [harryproa] Re:: environmental impact of boat building materials
From: "'.' eruttan@yahoo.com [harryproa]" <harryproa@yahoogroups.com.au>
Date: 6/25/2018, 2:10 PM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

Also found this

https://specomposites.wordpress.com/2013/06/25/life-cycle-analysis-environmental-effects/

about lies in studies. Potential academic contact info. Unable to find this paper or any update

Hard to find solid information

On June 25, 2018 10:30:31 AM UTC, "Rob Denney harryproa@gmail.com [harryproa]" <harryproa@yahoogroups.com.au> wrote:
|Thanks. Richard Jenkins is a long time hero of mine.
|
|The operating side of things is sorted. The cargo ferry will operate
|using
|little or no fossil fuel as it can sail in winds as low as 6 knots,
|will be
|solar powered when the sun is out and will not operate on routes where
|timetabling is strict (ie, no tourists or perishable cargo) so if there
|is
|no wind at night, it does not move. This is an unlikely scenario,
|particularly for the first one which will be operating on a trade wind
|route, mostly in daylight.
|
|Compare this with the diesel guzzling freighters. Up to 60% of their
|income is spent on fuel, most of the rest on wages, leaving nothing for
|maintenance, which is why there are so many derelicts ships waiting to
|sink
|in the main harbours.
|
|What I would like to discover is how the materials themselves compare,
|including production, the build process, maintenance, life expectancy
|and
|what happens at the end of their useful life. Then divide the answer by
|how
|many tonnes of cargo are carried how far by each vessel. The result
|may
|or may not be in favour of the cargo ferry, it will be interesting to
|see.
|It will probably end up as a university student's third year project,
|but
|experience has shown that it is better to have done the literature
|search
|before approaching them. Experience has also shown that there is not
|much
|you guys don't know, so you are my first stop.
|
|The ply information is interesting, I will call ozbuild tomorrow and
|see if
|they have any comparative numbrs for other materials and/or more
|numbers
|for wood than the heavily biased carbon released/stored numbers.
|
|On Mon, Jun 25, 2018 at 6:54 PM, realink@iprimus.com.au [harryproa] <
|harryproa@yahoogroups.com.au> wrote:
|
|>
|>
|> If theyre looking for a holistic analysis Id avoid that, as that
|would
|> include the build of the boat. What you could give them is the
|footprint in
|> the operation of the boat vs some existing propositions that deal
|with
|> similar use in terms of passengers and freight, you would be
|examining fuel
|> consumption and the cost of crewing.
|>
|> Of course you would have to factor in some rubber figures for
|windless
|> days etc, limitations for sea state and weather that are the normal
|sphere
|> of operation. Its kinda tough because you wont be aware what they are
|using
|> now or how often, and you wont be familiar with their local weather
|> patterns. Some research might fill those blanks in though. Dont leave
|out
|> maintenance because that would be in your favor.
|>
|> The more you find out about whats happening for them now, the more
|you
|> will be able to favorably colour in the complimentary specifics of
|your own
|> design. Dont be too unhappy with yourself if your proposal seems too
|rosy,
|> marine operations are expensive and often involve questionable
|aspects such
|> as antifouling.
|>
|> Maybe this video will give you a few ideas, or just some place to
|start.
|> Although it says ep 3 I havent had any luck finding earlier versions
|>
|> https://www.youtube.com/watch?v=C_XRWhS7978
|>
|>
|>

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