============================================================================
                             STEAM TABLES for LX
                                 Version 1.00

                       Copyright (C) 1998 MIYAKE Shuhei
============================================================================

----- Functions
This program calculates the thermodynamic properties of steam/water based
upon the identical formulations described in the JSME STEAM TABLES 1967.
(JSME: The Japan Society of Mechanical Engineers)

This program accepts inputs of following four ways.
  (1)Temp. and Press. - for any region of water or steam
  (2)Temp. or Press. - for saturated water and saturated steam
  (3)Temp. and Quality or Press. and Quality - for wet steam
  (4)Enthalpy and Press. - for water or steam in the subregion 1 or 2

In addition, this program supports three sets of unit systems.
     SI      - K, MPa, KJ/kg, etc.
     Metric  - C, kg/cm2a, kcal/kg, etc.
     British - F, psia, BTU/lb, etc.

You can copy the result to the clipboard and paste it to other applications
such as HP Calc or 1-2-3.


----- Installation
This archive includes following files.
    STEAMTBL.TXT  ..... This file
    STEAMTBL.EXM  ..... Executable file
    STEAMTBL.ICN  ..... Icon file
    STEAM.PCX     ..... P-T Diagram for your reference 

Unzip .EXM and .ICN files, and register STEAMTBL.EXM to the System Manager.
At the first execution, STEAMTBL automatically creates a STEAMTBL.ENV file
in A:\_DAT directory.  In the case that there is not a: drive, then c:\_DAT
is assigned instead.


----- How to Use
1.Enter temperature and pressure, then press [F10].  The properties of the
  water or steam are calculated and displayed.
  The possible range of input value is displayed by pressing [F1] key.
  The unit system of input values is assumed that now on display.

2.You can select the unit sets by checking [UnitSet] menu in the menu bar.
  When selecting multiple sets, you can change the unit set by [F9] key,
  at any time.
  At the first execution of the program, SI and Metric are selected.

3.To calculate the saturation, you enter the data only in the field of either
  Temp or Press.  In this case only the pressure or temperature below the
  critical point is effective. 

4.To calculate wet steam, enter temperature and quality or pressure and
  quality.  The quality (%wetness) is identified by a suffix 'x' or 'X' at
  the other field.
     ex.)   Temp[180         ]   Press[2.5x       ]   <- 2.5% quality

5.To calculate properties from pressure and enthalpy, enter the enthalpy data
  at Temp field.  The enthalpy is identified by a suffix 'h' or 'H'.
  This calculation is suited for the range in the subregion 1 and 2.
     ex.)   Temp[800h        ]   Press[120        ]   <- 800kcal/kg enthalpy

6.The calculation result can be copied to the clipboard by [F2] through
  [F6] keys.  Even the [Shift] + [F2] through [F4] are effective when the
  properties of saturated water are displayed.


----- Special Thanks
The calculation engine for steam table properties, the heart of this program,
is the work of Takayoshi Tabuchi.  I asked him to offer the sources to me
in order to develop this program for HP100/200LX.  I believe he is a good
engineer and also good programmer.  The only little problem on him is that
he doesn't have LX!


----- Notice
The author makes no Warranty or Guarantee to the accuracy of this utility.

The program is freeware.  Sale of this material is not allowed.
Noncommercial distribution is allowed, provided that the whole package is
distributed and the original documentation is preserved unchanged.

If you have any suggestions or comments please write to

              shuhei.miyake@nifty.ne.jp

