[T2] Bus A/C

[Robert Mann]

Richard Jack wrote:

>I saw a bus at the VW show in Fredericksburg, 
>TX, this last April.  The bus is a late bay 
>westy that was primer outside, orange inside. It 
>had a cool setup for A/C compressor and an 
>alternator that all ran off a Honda small gas 
>motor, outside the rear of the bus. 
>
>Does anyone on the list know who's bus 
>I'm asking about , or might he actually be 
>on this list?
>
>I'd like to ask him some question, so I could do the same.

	I take it those strings of characters are 
some Gates glitch, not swear-words censored by 
GoogleMail <:-|

	As one who happens to live in a temperate 
climate where A/C is hardly needed, I have v 
little experience with A/C.
	But I make bold to offer a few quips.

1.  If you have „ 50 shaft hp in the vehicle, and 
can afford a small fraction of that to divert to 
A/C, wouldn't you want to minimise the machinery 
involved?  Adding a 2nd engine seems like an 
almost desperate recourse.  Furthermore it could 
be exposed to damage or theft (part or whole).  I 
admit it will work when the vehicle is shut down. 
I just hope its noise isn't too much for the 
campsite :-[

2.  It may not be v easy to slap in a bigger 
alternator, but might that not be a better start 
to getting the power for A/C (up to some limit W 
not kW)?  I realise youse yanks in the Heat Belt 
this month believe firmly that you need kW :-D

3.  Or might not another power-takeoff pulley be 
fitted, approx as for the Judson supercharger, to 
drive the A/C more directly thru a new V-belt? 
With any luck an AX belt could suffice?

4.  I serve notice of imminent trials (well, I'll 
need our 'hot' weather some months in future, for 
real testing) of a micro-swampcooler with no 
moving parts: I've slapped an oblong of EU3 
polyester A/C air filter immediately inside the 
intake grille just below the windscreen (better 
google that exotic term, youse yanks :-X).  The 
idea is to drip onto that filter water which will 
evaporate quickly during driving in low-RH air. 
The air coming out of those excellent louvres in 
the dashboard will then be cooler (and more 
humid, but I'm hoping that will not matter too 
much).
	Swamp-cooler experts please critique ... 
I expect at least the 'low W' criticism  ...  but 
the $/W could look red-hot 8-)


-- 
Robt Mann
Whangaparaoa, New Zealand
'73 VW 1600dp Devon camper
'53 Meteor V8
various Jawa-CZ and Jawa-NZ strokers