** High Priority **
Mr. van Iersel,
=20
I had attempted to e-mail my mesage below to you at the
"...peachnet.ed=
u" address, but had it returned as undeliverable. This message was =
automatically addressed through the hot link following your name under the
=
article title below. Hopefully, it will go through.
=20
I found your message of 1996 (reproduced below) on the internet while
=
searching for a computational method to calculate wet bulb temperatures, =
havinng data for only dry bulb and relative humidity. I need to do this =
without using psych charts for individual data points. I have five years
=
of hourly met data to process, which I have already enetered into EXCEL, =
and need to calculate the hourly wet bulbs.
=20
So you can see why I was interested in the EXCEL method you cited =
below.
=20
The problem is, the internet link provided in your response no longer
=
appears active. Do you have this or an analogous method available?
=20
Thank you very much in advance for any information you would provide.
=20
Patrick Petrella
=20
********************************************
Wet/dry bulb table.Marc van Iersel mvanier at GAES.GRIFFIN.PEACHNET.EDU=20
Tue Jun 11 11:59:05 EST 1996=20
Previous message: damaged apple tree Next message: Basal sprouts and =
energy budgets of trees (Q) Messages sorted by: [ date ] [ thread ] [ =
subject ] [ author ] At 08:39 PM 6/6/96 +0100, you wrote:>Does anybody =
have a table of wey/dry bulb relative humidity values please ?>Better yet,
=
is there a formula that can be used to calculate the humidity usung> wet =
and dry bulb thermometers>?>Thanks in advance.>>Ivan.>By far the easiest =
way to determine humidity from dry and wet bulbtemperatures is to use a =
psychrometric chart. This will give you relativehumidity, absolute =
humidity, and dew point (or saturation temperature).Psychrometric charts =
are available from the American Society of Heating,Refrigerating, and =
Air-conditioning Engineers (ASHRAE).It is also possible to calculate these
=
values, but that is much morecomplicated. ASHRAE has a handbook that =
contains all the necessary information.If you have access to Excel, you =
can download a program from the WWW
athttp://www.ior.com/~randyw/engrproj.h=
tml that can do all these calculationsfor you.MarcMarc van Iersel =
E-mail: mvanier at gaes.griffin.peachnet.eduAssistant Professor =
Department of Horticulture Tel: (770) 412-4766University of Georgia =
Fax: (770) 412-4764Georgia StationGriffin, GA 30223-1797***********=
*********************************
=20
Patrick A. Petrella
Project Director
Power Consulting Division
Burns and Roe Enterprises, Inc.
200 Crawford Place, Suite 100
Mt. Laurel, New Jersey 08054
(Land) 856-914-5925
(Fax) 856-914-5834
(Cell) 201-450-7494
ppetrella@[EMAIL PROTECTED]
|
