Wet Steam Enthalpy and % Moisture Monitor

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=100 BGCOLOR="#CCCCFF" TEXT="#080000" bgproperties="fixed" background="0d200640egdysm.jpg"> <div> <FONT SIZE="6" COLOR="#000066" FACE="Arial" ><B>Jonas, Inc.</B></FONT><FONT SIZE="5" COLOR="#000099" FACE="Arial" ><B> </B></FONT><FONT SIZE="1" COLOR="#000099" FACE="Arial" ><B>   </B></FONT><FONT SIZE="3" COLOR="#000099" FACE="Arial" ><B> |</B></FONT><B>     </B><A HREF="index.htm" TARGET="_top" TITLE="Jonas, Inc."><U><B>Home</B></U></A><B> </B><B> </B><B>   </B><B> |    </B><A HREF="contact.htm" TARGET="_top" TITLE="Contact Us"><U><B>Contact Us</B></U></A><B>                                           </B></div> <div> back to<B>  </B><A HREF="products.htm" TARGET="_top" TITLE="Products"><U><B>Products</B></U></A><FONT SIZE="3" COLOR="#000099" FACE="Arial" ><B> 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Monitor</B></div> <div> Jonas, Inc. developed an on-line instrument (calorimeter) that continuously monitors the heat (enthalpy) and moisture (quality) contents of wet steam.  Applications include steam generation (desuperheating, moisture separation, efficiency, boiler carry-over), co-generation, district heating, desalination, industrial processes (separation, condensation), oil recovery, gas liquification, erosion analysis, steam for sterilization, and many others.  The instrument is also applicable to other condensing fluids.  This leaflet presents a description of the Jonas, Inc. Enthalpy and % Moisture Monitor (Figures 1 and 2) as well at typical operating parameters.</div> <div> Optional use of this instrument is for collection of the moisture for chemical analysis (early condensate).</div> <div> <B>Description </B></div> <div> The objective of the Enthalpy and % Moisture Monitor is to measure the wetness of saturated steam in process piping.  In order to achieve this, the Monitor isokinetically samples the wet steam and uses a specially designed Moisture Separator to remove moisture.  The steam and condensate are cooled and the temperature, pressure and flow rate of each stream is monitored.  </div> <bR> <div> The outputs from the flowmeters, as well as temperature and pressure indicators are sent to the Windows-based Monitoring Computer and used to calculate the % moisture and enthalpy of the sampled steam (or other fluids).  These values are then displayed and can be output to a data acquisition system.</div> <div> <FONT SIZE="2" COLOR="#000099" FACE="Arial" ><I><B>Isokinetic Sampling</B></I><I> - </I></FONT>For representative sampling of the gaseous and liquid phases, the <A HREF="nozzle.htm" TARGET="_top" TITLE="EPRI Isokinetic Sampling Nozzles (Probes"><U>EPRI Isokinetic Sampling Nozzle</U></A>, which has been a part of ASTM Standard D-1066, <I>Standard Practice for Sampling Steam</I>, since 1997, is used.</div> <div> <B>Operating Parameters</B></div> <div> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="1" WIDTH="579" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 16 ><NOBR><div> <B>Sample Flowrate:</B></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="436"><div> 0.05 to 25 L/min (condensed)</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 33 WIDTH="132"><div> <B>Pressure:</B></div> </tD> <tD VALIGN=TOP WIDTH="436"><div> 20 psia to 700 psia (1.4 to 48 kg/cm^2) (lower pressures can be achieved using special sampling equipment)</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 16 WIDTH="132"><div> <B>Temperature:</B><FONT SIZE="2" COLOR="#000000" FACE="Arial" > </FONT></div> </tD> <tD VALIGN=TOP WIDTH="436"><div> 500°F (260°C) max.</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 16 WIDTH="132"><div> <B>% Moisture:</B></div> </tD> <tD VALIGN=TOP WIDTH="436"><div> 0.1 to 20%</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 16 ><NOBR><div> <B>Response Time:</B></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="436"><div> 10 seconds</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 33 ><NOBR><div> <B>Available Outputs:</B></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="436"><div> enthalpy, % moisture, pressure, temperature, mass flow, BTU/hr or W/hr, cost/hr</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 16 WIDTH="132"><div> <B>Signal Output:</B></div> </tD> <tD VALIGN=TOP WIDTH="436"><div> 0 - 10 V, 4 - 20 mA, RS232 (specify when ordering)</div> </tD> </tR> </TABLE></div> <div>                                                                    </div> <div> <IMG SRC="20f51210.jpg" border=0 width="593" height="289" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> <B>Figure 1.  Schematic of Wet Steam Enthalpy and % Moisture Monitor</B></div> <div> <B><IMG SRC="20d13640.jpg" border=0 width="275" height="356" ALT="Jonas, Inc. Wet Steam Enthalpy and % Moisture Monitor" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B>Figure 2.  Jonas, Inc. Wet Steam Enthalpy and % Moisture Monitor</B></div> <DIV ALIGN="LEFT"></DIV> <div> <IMG SRC="1e266430.gif" border=0 width="358" height="67" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </td> </tr></table></body>