Two things are slightly at odds here:
effectiveness and efficiency.
Many operations do not care much about efficiency
as long as they are effective. This is particularly
true of (for example) military. You want them to be
effective, but there are other examples such as
airbags and (fighterplane) ejection seats that must
be effective and you don't care how efficient they
are for the few cases you actually get to use them.
I think it is also true for the bloodbank, they need
to cover quite some ground each day, they have very
strict requirements about cooling and hygiene so the
power requirements even for sitting in a parking lot
are so large that I have seen they do not even try to
plug into the building power when they litterally
sit in front of an outlet, because that outlet is not
guaranteed to provide continuous power (effectiveness)
nor will it supply enough to run all equipment including
the AirCo of the bus sitting in the full Californian sun
on a blacktop desert...
Since the Bloodmobile has a fixed schedule and cannot
wait a few more hours to gather enough energy for the
next trip, this limitation will quickly tarnish a
solar-powered one, if you even can make it suck enough
solar power to move it...
Now it may be possible to design a Bloodmobile to run
from a solar array and that is a very interesting
challenge (and since I love solar, I would like to
see it done) but it is a different beast than the
conversion.
Typical EVs are somewhat efficient because they can
operate within specific boundaries, for example all
around-town errands or a fixed commute each day.
Running a Bloodmobile is a different beast, you
would need to gather data on the mileage that the
RV has and the steady state power draw when it is
operating as blood bank.
Then see if you can get close to that power requirement
with a solar array and see how that array can be
transported. Then consider what they should do on
days that the sun does not shine - probably keep their
genset anyway?
Success,
Cor van de Water
Director HW & Systems Architecture Group
Proxim Wireless Corporation http://www.proxim.com
Email:
[email protected] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM:
[email protected]
Tel: +1 408 383 7626 VoIP: +31 20 3987567 FWD# 25925
Tel: +91 (040)23117400 x203 XoIP: +31877841130
-----Original Message-----
From:
[email protected] [mailto:
[email protected]] On
Behalf Of Peter C. Thompson
Sent: Tuesday, December 21, 2010 4:54 AM
To: Electric Vehicle Discussion List
Subject: [EVDL] Converting Bloodmobiles to electric?
Hi Folks,
Being a regular blood donor, I'm on the usual plea-lists, and the latest
plea got me thinking. The local blood bank is asking for money to buy
new Bloodmobiles (converted RVs), as the current ones no longer pass
smogtests.
Having done one conversion (a small one tho - Porsche 914), I think it
would be doable, but wanted to get feedback from the Usual Suspects
before pushing forward.
My thoughts - use a simple system of DC motor (Warp11?), Netgain
controller, lithium batteries, BMS, and manzanita charger. Then put a
set of warning lights on the dash, and use the "gas gauge" to tell the
current charge.
Sounds simple to me, but what am I missing?
Cheers,
Peter
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