Remote Automation Solutions Manual: Steam/Water Thermodynamic Properties Calculations Program Manuals & Guides
Remote Automation Solutions
Steam/Water Thermodynamic Properties Calculations
Program
(For the FloBoss 103)
User Manual
(QER 04Q018)
Form A6161
March 2008
Steam/Water Thermodynamic Properties Calculations Program User Manual
Revision Tracking Sheet
March 2008
This manual may be revised periodically to incorporate new or updated information. The revision date
of each page appears at the bottom of the page opposite the page number. A change in revision date to
any page also changes the date of the manual that appears on the front cover. Listed below is the
revision date of each page (if applicable):
Page Revision
All pages Mar-08
All pages Aug-05
All pages Mar-03
Page ii, 2 Jun-04
Initial release Apr-04
NOTICE
Remote Automation Solutions (“RAS”), division of Emerson Process Management shall not be liable for technical or editorial errors in this
manual or omissions from this manual. RAS MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING THE IMPLIED
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LIMITED TO, LOSS OF PRODUCTION, LOSS OF PROFITS, LOSS OF REVENUE OR USE AND COSTS INCURRED INCLUDING
WITHOUT LIMITATION FOR CAPITAL, FUEL AND POWER, AND CLAIMS OF THIRD PARTIES.
Bristol, Inc., Bristol Babcock Ltd, Bristol Canada, BBI SA de CV and the Flow Computer Division are wholly owned subsidiaries of Emerson
Electric Co. doing business as Remote Automation Solutions (“RAS”), a division of Emerson Process Management. FloBoss, ROCLINK,
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© 2004-2008 Remote Automation Solutions, division of Emerson Process Management. All rights reserved.
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Steam/Water Thermodynamic Properties Calculations Program User Manual
Table of Contents
Page
1 INTRODUCTION 1
1.1 Scope and Organization.......................................................................................................1
1.2 Product Overview.................................................................................................................1
1.2.1 Supported IAPWS Steam and Water Regions ........................................................2
1.3 Program Requirements........................................................................................................3
2 INSTALLATION 5
2.1 Downloading the Program....................................................................................................5
3 CONFIGURATION 9
3.1 Steam/Water Properties Setup Screen..............................................................................10
3.2 Steam/Water Properties Values Screen............................................................................12
3.3 Saving the Configuration....................................................................................................14
4 REFERENCE MATERIALS 15
4.1 Calculation Details .............................................................................................................16
4.2 Point Type 30: Properties Setup........................................................................................18
4.3 Point Type 31: Properties Values ......................................................................................19
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Steam/Water Thermodynamic Properties Calculations Program User Manual
1 INTRODUCTION
1.1 Scope and Organization
This document serves as the user manual for the Steam and Water Thermodynamic Properties
Calculations User Program (QER 04Q018) version 1.30, which is intended for use in a FloBoss™ 103.
This manual describes how to download, configure, and monitor this program (referred to as the
“Steam/Water Properties program” or “the program” throughout the rest of this manual). You access and
configure this program using ROCLINK™ 800 Configuration Software loaded on an IBM-compatible
personal computer running Windows® Operating System.
The sections in this manual provide information in a sequence appropriate for first-time users. Once you
become familiar with the procedures and the software running in a FloBoss 103, the manual becomes a
reference tool.
This manual has the following major sections:
Section 1 – Introduction
Section 2 – Installation
Section 3 – Configuration
Section 4 – Reference Materials
This manual assumes that you are familiar with the FloBoss unit and its configuration. For more
information, refer to the following manuals:
FloBoss 103 Flow Manager Instruction Manual (Form A6114)
ROCLINK 800 Configuration Software User Manual (Form A6121).
1.2 Product Overview
The Steam/Water Properties program allows a FloBoss 103 to calculate density, heating value
(enthalpy), entropy, viscosity, and specific heat ratio for steam and water applications in either Metric or
English (US) units. Program calculations conform to the International Association for the Properties of
Water and Steam, International Formulation 1997 (IAPWS-IFC-97) standard. This program is intended
for use with a separate flow calculation user program that provides mass and energy flow rates. For a
more detailed description of the calculation performed by the program, refer to Section 4.1 Calculation
Details.
With the program installed, the FloBoss 103 reads the current flowing static pressure and temperature
once every second. At start-up, the program sets the Integral Multiplier Period (or IMP) to one minute,
the minimum value. At the completion of each IMP, the program executes the Steam and Water
Thermodynamic Properties calculations, using the average flowing static pressure and temperature
during the IMP. The program writes the resulting values to standard FloBoss 103 point types and point
type 31 parameters.
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Steam/Water Thermodynamic Properties Calculations Program User Manual
1.2.1 Supported IAPWS Steam and Water Regions
Figure 1. IAPWS Steam and Water Regions 1 through 5
The Steam/Water Properties program supports IAPWS Steam and Water Regions 1, 2, 4, and 5 (see
Figure 1). The program does not support IAPWS Steam and Water Region 3. The steam and water
calculations implemented in this user program are valid for pressures between 0.69 and 16513 kPa (0.1
and 2395 PSIA) and temperatures between 0 and 800°C (32 and 1472°F). Calculations of water
properties for higher pressures—between 16513 and 100000 kPa (2395 and 14504 PSIA)—are valid for
temperatures between 0°C (32°F) and the Region 1 and 3 boundary. Calculations of steam properties for
higher pressures—between 16513 and 100000 kPa (2395 and 14504 PSIA)—are valid for temperatures
between the Region 2 and 3 boundary and 800°C (1472°F). The calculations are also valid for higher
steam temperatures, when the pressure is between 0.69 and 10000 kPa (0.1 and 1450 PSIA). In these
cases the temperature can range from 800 to 2000°C (1472 to 3632 °F).
Note: If the static pressure and temperature lie within Region 3, the program sets all of the
thermodynamic properties—including density, viscosity, specific heat ratio, enthalpy, and
entropy—to 1.0 to provide an indication of calculation within this unsupported area.
If you know the fluid is saturated steam or water, the phase can be specified along with the choice of
pressure or temperature to use to determine the properties. In this case, the conditions are set to Region 4
and the quality is set to 100% if the phase is specified as saturated steam, and 0% if the phase is
specified as saturated water.
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Steam/Water Thermodynamic Properties Calculations Program User Manual
1.3 Program Requirements
You download the Steam/Water Properties program to—and then run it from—the Flash and RAM
memory on the FloBoss 103. The Steam/Water Properties program is compatible with firmware version
2.12 (or greater) of the FloBoss. Download and configure the program using the ROCLINK 800
Configuration software (version 1.75 or greater).
The downloadable program is:
File Name Unit Task Code Data
Fb103_iapws_steam.bin FloBoss 103 User 2 7B0000 4700000
Note: You must connect a PC to the FloBoss 103’s Local Operator Interface (LOI) port before
starting the download.
For information on viewing the memory allocation of user programs loaded in the FloBoss, refer to the
ROCLINK 800 Configuration Software User Manual (Form A6121).
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