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198 lines
4.2 KiB
HTML
198 lines
4.2 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<?xml version="1.0" encoding="iso-8859-1"?>
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=iso-8859-1">
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<title>CoolProp for EES</title>
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<meta name="generator" content="Amaya, see http://www.w3.org/Amaya/">
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</head>
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<body>
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<h3>General Information</h3>
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<p>The CoolProp library is a standard interface between EES and the CoolProp
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library. CoolProp is a fluid property database written by <a
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href="mailto:ian.h.bell@gmail.com">Ian Bell</a> and is open-source and free. In
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addition, REFPROP can be called through CoolProp if is installed on the
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computer</p>
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<p></p>
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<p>The general call looks like:</p>
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<p><em>out = coolprop(output$
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,inputvar1$,input1,inputvar2$,input2,fluid$)</em></p>
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<p>A modified SI system of units is used in CoolProp. The units employed are
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shown below.</p>
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<p></p>
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<h3>Example</h3>
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<p>The following example retrieves the enthalpy of “Methane”. The
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thermodynamic state is given by two variables : p and T, that are set to 1 bar
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(100 kPa) and 15 °C (288.15 K) respectively:</p>
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<p><em>h =
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coolprop('H',’P',100,’T’,288.15,’Methane’)</em></p>
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<p></p>
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<p>A complete list of fluids that can be used in CoolProp() can be found at <a
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href="http://coolprop.sourceforge.net/Fluids/FluidInformation.html">Fluid
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Information</a></p>
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<p></p>
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<p>The EES function coolprop() uses the same fluids and inputs as the function
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<a
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href="http://coolprop.sourceforge.net/apidoc/CoolProp.html#CoolProp.CoolProp.Props">Props</a>
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from the python wrappers. The documentation there is generally more up-to-date.
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</p>
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<p></p>
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<p>Also refer to the example file at
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c:\EES32\Userlib\CoolProp_EES\CoolProp_EES_Sample.ees</p>
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<p></p>
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<h3>Fluid Properties</h3>
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<table border="1">
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<caption></caption>
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<col>
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<col>
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<col>
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<col>
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<tbody>
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<tr>
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<td>Thermophysical property</td>
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<td>Symbol</td>
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<td>Units</td>
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<td>Input/Output</td>
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</tr>
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<tr>
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<td>Pressure (absolute)</td>
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<td>P</td>
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<td>kPa</td>
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<td>Both</td>
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</tr>
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<tr>
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<td>Temperature</td>
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<td>T</td>
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<td>K</td>
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<td>Both</td>
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</tr>
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<tr>
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<td>Density</td>
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<td>D</td>
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<td>kg/m<sup>3</sup></td>
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<td>Both</td>
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</tr>
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<tr>
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<td>Specific Enthalpy</td>
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<td>H</td>
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<td>kJ/kg</td>
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<td>Both</td>
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</tr>
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<tr>
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<td>Specific Entropy</td>
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<td>S</td>
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<td>kJ/kg/K</td>
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<td>Both</td>
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</tr>
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<tr>
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<td>Quality</td>
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<td>Q</td>
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<td>kg/kg</td>
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<td>Both</td>
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</tr>
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<tr>
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<td>Specific Internal Energy</td>
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<td>U</td>
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<td>kJ/kg</td>
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<td>Output only</td>
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</tr>
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<tr>
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<td>Specific Gibbs Function</td>
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<td>G</td>
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<td>kJ/kg</td>
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<td>Output only</td>
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</tr>
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<tr>
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<td>Specific Heat at Constant Volume</td>
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<td>O</td>
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<td>kJ/kg/K</td>
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<td>Output only</td>
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</tr>
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<tr>
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<td>Specific Heat at Constant Pressure</td>
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<td>C</td>
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<td>kJ/kg/K</td>
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<td>Output only</td>
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</tr>
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<tr>
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<td>Speed of Sound</td>
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<td>A</td>
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<td>m/s</td>
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<td>Output only</td>
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</tr>
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<tr>
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<td>Surface Tension</td>
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<td>I</td>
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<td>N/m</td>
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<td>Output only</td>
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</tr>
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<tr>
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<td>Viscosity</td>
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<td>V</td>
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<td>Pa·s</td>
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<td>Output only</td>
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</tr>
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<tr>
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<td>Thermal Conductivity</td>
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<td>L</td>
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<td>kW/m/K</td>
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<td>Output only</td>
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</tr>
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<tr>
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<td>Critical Temperature</td>
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<td>Tcrit</td>
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<td>K</td>
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<td>Output only</td>
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</tr>
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<tr>
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<td>Critical Pressure</td>
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<td>pcrit</td>
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<td>kPa</td>
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<td>Output only</td>
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</tr>
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<tr>
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<td>Minimum Temperature</td>
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<td>Tmin</td>
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<td>K</td>
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<td>Output only</td>
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</tr>
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</tbody>
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</table>
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<p></p>
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<p>The following combinations of inputs are valid (in either order):</p>
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<ul>
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<li>T,P</li>
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<li>T,Q</li>
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<li>T,D</li>
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<li>P,H</li>
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<li>P,S</li>
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<li>P,Q</li>
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</ul>
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<h3></h3>
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</body>
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</html>
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