[DeTomaso] WANTED :Meriah fans and door glass

[Dave Londry]

More heat is required to raise the temperature of humid air by 1 degF.
So; air passing through the rad has a lower temperature rise when it's 
humid.
This means that the rear part of the rad has a higher temperature 
difference between coolant and air,
  so it can move more heat into the air.
I'm waaaay too lazy to set about figuring how much though.
dave

On 5/7/2011 1:43 PM, Gray Gregory wrote:
> Rob,
>
> I don't know if humidity has any effect on radiator function but I know it effects the a/c. humid air is much harder to cool (or heat too). This is why with daytime temps well above 100 deg nighttime temps will be an easy 30 to 40 deg cooler; while here in Houston we are lucky to get much more than a 20 deg drop on a hot august night.
>
> And to answer your earlier question I run pusher fans with a hall radiator (but my a/c condenser is still in the rear).
>
> Gray
>
> -----Original Message-----
> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On Behalf Of robert stewart
> Sent: Saturday, May 07, 2011 8:16 AM
> To: MikeLDrew at aol.com; gndplne at yahoo.com; cadroit1 at aol.com; detomaso at realbig.com
> Subject: Re: [DeTomaso] WANTED :Meriah fans and door glass
>
> Well an interesting discussion - I am clearly not an expert on how humidity
> impacts the cooling of the rad. I guess in addition to the impact on the rad
> there is also the impact on the AC system (in Texas that will run AC for about
> 10 months of the year). Does massive hummidity make it tougher to cool with AC? 
> Does that impact the way Meriah fans might work here compared to other places?
>
> Does anyone in Texas (South east Texas - hummidy central) still run the Meriahs
> and AC successfully?
>
>
> When I say massive hummidty I mean you get out of your air condtioned car and
> you glasses steam up on your face?
>
>
> Rob
>
>
>
>
> ________________________________
> From: "MikeLDrew at aol.com"<MikeLDrew at aol.com>
> To: gndplne at yahoo.com; rspink2012 at yahoo.com; cadroit1 at aol.com;
> detomaso at realbig.com
> Sent: Fri, May 6, 2011 8:46:29 PM
> Subject: Re: [DeTomaso] WANTED :Meriah fans and door glass
>
>
> In a message dated 5/6/11 18 37 45, gndplne at yahoo.com writes:
>
>
> oh, ok.  It sounded like you might have known something about the process that I
> missed.  Every property that I know about is different between moist and dry air
> (of course as a pilot you know the adiabatic lapse rate is different) so I
> thought you could explain this.
>
>
> As a pilot, here's what I know.
>
> Push forward, houses get big.  Pull back, houses get small. :>)
>
> Mike
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