Radiant Cooling (and Heating) Calculators
Find The Best Temperature Offset For Maximum Capacity
Please refer to the calculators here:
https://www.chiltrix.com/radiant-cooling/radiant-calculators/
Please continue reading for an explanation of how to use the calculators.
About these calculators - in spite of the fact that most radiant systems are
designed and configured based on rule-of-thumb or experience, there are
laws of physics that can and should be used for proper design and
configuration of any radiant system, for heating or cooling. Beyond just
physics in fact, in is mostly related to quantum mechanics. To spare our
partners and customers the burden of learning how to use Plancks constant,
Kirchhoff’s laws, Wien’s law, the Stefan-Boltzmann Law, Newtons Law of
Cooling, Fourier’s law, and others, we have created some basic calculators.
On the calculator page you will see there are four tabs across the top as
follows: Radiant, Surface Temp, Convert K to R, and Dew Point.
The Radiant Tab
:
This calculator allows you to see the net radiant heating or cooling that can
be obtained from a square meter or square foot of a radiant surface based
on its temperature and the temperature of its local environment (i.e. the
temperature of the “things” in the room to be conditioned – walls,
furniture, floor, ceiling, people, etc. You will note there are two sections, in
the top section you will input the following:
1. The emissivity of the radiant surface. This can be measured with an
accurate laser thermometer with adjustable emissivity, used in
combination of an accurate surface temperature sensor. Or more easily,
you can look up the emissivity of most materials or coatings online, for
https://www.engineeringtoolbox.com/emissivity-
or here
https://www.transmetra.ch/images/transmetra_pdf/publikationen_liter
atur/pyrometrie-thermografie/emissivity_table.pdf
2. And there are many other resources online.
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