How to Use W-PROPATH

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4. How to Use W-PROPATH
The URL of W-PROPATH is as follows.

http://www2.mech.nagasaki-u.ac.jp/PROPATH/
In this section, the words enclosed with the pair of square brackets means the menu item or clickable words
in the W-PROPATH web page.

P-PROPATH on W-PROPATH
1. Access the above URL with your frames compatible web browser.

2. Set the “Character Set” to Western.
Example in the Linux Netscape browser

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3. Click on [Execution of W-PROPATH]. The substance selection page is displayed.

The nomenclature for W-PROPATH is shown in the left frame. Particular symbols are used in WPROPATH such as “mu” for “µ”. Refer to the left frame when you ﬁnd symbols you don’t understand inthe right frame.
You select a substance in the right frame. Clicking on the long horizontal bar, you get the substancespull-down list and you select a substance from the list. If you click on [Properties] or [Units], the properties
selection page or the units selection page appears respectively. [Input(s)] leads you to the page for data
input.
4. Select a substance from the pull-down list in the right frame.

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5. Click on [Properties]. The properties selection page appears. You can select properties in the pull-downlist. Clicking on [Substances] brings you back to the substance selection page.

6. Select a property, or properties, from the pull-down list.

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7. Click on [Units]. The units selection page appears. You can select one from listed units. Clicking on[defaults] resets all units to defaults.

8. For example, the unit pull-down list for temperature looks as below. You can choose K(Kelvin), ◦ C(Celsius),F(Fahrenheit) or R(Rankine).

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9. Click on [Input]. The page for data input and calculation appears.

10. Input the required value from the server and click on [calculation]. Then the results page is then displayed.

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A-PROPATH on W-PROPATH
1. Select [Execution of Single Shot A-PROPATH] in the ﬁrst menu. The following display appears.

• [Select a formulation from the list:] Users can select a formulation for moist air. If users select[Moist Air as Mixture of Ideal Gases] in the list, properties of moist air are calculated assuming anideal gas mixture. If users choose [Most air as Real ﬂuid], moist air is treated as a real ﬂuid.
• [Properties to be found] Users select calculated properties and speciﬁed properties in this menu.
See the following description.
• [Units] This menu allows users to change the units of temperature and pressure. The unit of temperature is [K] or [◦C], and that of pressure is [Pa] or [bar].
• [Inputs] Users specify a speciﬁed condition in this menu. See the following description.
• [Quit] This menu is used to return to the ﬁrst menu.
2. Click [Properties to be found], the following display appears.

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Users select a group including calculated properties in the list [Select Properties from the list:]. For example,[WBC, DPC, DSC, RWC, XC, VC, HC, SC – (P, T, RH)] means that the functions of WBC, DPC, DSC,RWC, XC, VC, HC, and SC are calculated from speciﬁed P, T, and RH. All functions in A-PROPATH arenamed based on the rule tabulated in the table [Naming Convention].
3. If users have selected calculated properties and speciﬁed properties, users can proceed to [Inputs] menu.
The following display appears.

As shown above, if users have selected [WBC, DPC, DSC, RWC, XC, VC, HC, SC – (P, T, RH)] in the[Properties to be found], pressure, temperature, and relative humidity appear as speciﬁed values.
4. If users have completed speciﬁed values, users can click [Calculation]. Users can see the following display
if the calculation has been terminated successfully.