APPLICATION DATA SHEET POWER POWER If this customer did not replace the old technology with a compatibleIndex Measurement in Heating Value and Wobbe continuous level measurement, they risked high operations and maintenance costs associated with obsolete displacer parts. Without a Natural Gas for Fast Turbine Control reliable level measurement, the plant risked process instability, potential equipment damage, and potential outages. SOLUTION Application As a solution to strong this problem, E.ON a Rosemount 5301 GWR with Natural gas shows variations in itsinstalled composition. For instance, rigid single leadmethane probe. The 5300 was installed in a chamber the ratio between (CHRosemount ) and non-methane hydrocarbons 4 and tested against a newon electronic testing, (C2+) is strongly depending the sourcedisplacer. of the fuelDuring gas. With the the GWR outperformed the displacer as it was unaffected temperature changes liberalization of the gas market, higher variations occur,by especially in and had a faster response time to the rapid level changes. Furthermore, the regard to the non-combustibles like carbon dioxide (CO2) or nitrogen strong signal enabled by direct switch technology allowed the Rosemount (N2). While natural gas from Russia or Europe typically contains 5300 measure in turbulent CO onlytoinaccurately the range of a few percent, natural conditions. gas from Asia Pacific 2 shows concentrations up to 20%. These large variations are 5301 and E. ONCO was pleased with the performance of the Rosemount 2 challenging usingthe natural gas from differentwith sources in gas Rosemount 5301 eventuallywhen replaced electronic displacer another turbines. Variation in the natural composition affectsin the Transmitter. Business results gas included a reduction maintenance costs for calorific valueand of the gas which lead todoes increased pollutant both labor parts. Sincemay the GWR not need calibration and (N2). As second option for low BTU applications, a photometric emission (e.g. NOx), loss of combustionthey efficiency and eventually provides a reliable measurement, were able to maintain process bench at 6.6 µm with similar response factors for C2H6, C3H8 and turbine damage. stability thereby minimizing the risk of reduced power generation, A second Rosemount 5301 other higher hydrocarbons can be used. Thisreplaces channelthe haselectronic no outages, and equipment damage. In some instances a fast real time gas analysis of heating value and Wobbe index has become necessary to provide early warning of RESOURCES changes in the composition. displacer. limitation on the N2 content, but it has stronger limitations on the C3+ content. Both options do not allow selective measurements of ethane, propane, etc. Emerson Automation Solutions Power Industry For Wobbe index measurement an additional CO2 optical bench Emerson.com/en-us/industries/automation/power-generation Whilst gas chromatographs provide very accurate measurements of with the measurement range of 0 to 5% or 0 to 20% is integrated all fuel gas components and physical properties (CV Bias Error +/- 0.1 into the analyzer. Nitrogen or another selected component can be 3 MJ/m ), the response is typically than 90 s for a C6+, N2 Rosemount 5300 time Series Guidedmore Wave Radar determined by balance. The response time of the analyzer is 10 s. and CO2 analysis. Emerson therefore offers the X-STREAM process Emerson.com/catalog/en-us/rosemount-5300-gwr-transmitter gas analyzer where speed is required in turbine control applications. Solution Calculation of Heating Value and Wobbe Index From the measurement of CH4 and C2+, the upper and lower heating Non-disperse infrared (NDIR) photometry allows the detection of value is calculated according to ISO EN6976-2005. An additional CO2 Standard Terms and Conditions of Sale can be found on the Terms and Conditions of Sale page. Linkedin.com/company/Emerson-Automation-Solutions most fuel gas components within seconds. Heating values can be The Emerson logo is a trademark and service mark of Emerson Electric Co. Twitter.com/Rosemount_News measurement allows the determination of mean molar mass and provided byand direct measurements of CH4 and C2+. Rosemount Rosemount logotype are trademarks of Emerson. All other marks are the property of their respective owners. specific density Facebook.com/Rosemount of the sample probe. Wobbe index is calculated from Youtube.com/user/RosemountMeasurement © 2017 Emerson. All rights reserved. For CH4 detection, a special 0-100 % CH4 NDIR bench measuring heating value and specific density, according ISO EN 6976-2005. Google.com/+RosemountMeasurement at 7.85 μm is used which shows low cross interferences from Field ethane H ), propane (C3H8) and carbon dioxide (COOffice ). For the Global(C Headquarters Europe Regional Asia Limitations Pacific Regional Office Middle Eastof andApplications Africa Regional Office and 2 6 2 Emerson Automation Solutions EmersonOne Automation Solutions Emerson Automation Emerson Automation Solutions C2+ measurement, two options are available. option for high Both configurations are only suitable for analysis of naturalSolutions gas or Europe GmbH Asia Pacific Pte Ltd 6021 Innovation Blvd. Emerson FZE P.O. Box 17033, BTU applications is a photometric bench at 3.4 µm, which shows natural gas like mixtures. The presence of interfering components 19a P.O. Box 1046 1 Pandan Crescent Shakopee,factors MN 55379, Jebel Free Zone - South 2 response ofUSA 1, 1.6, 1.9 and 2.0Neuhofstrasse to C2H6, propane, i-butane likeAlihigher hydrocarbons starting from C3H8 (C3+), Helium (He), CH 6340 Baar, Switzerland Singapore 128461 +1 800 999 9307 or +1 952 906 8888 Dubai, United Arab Emirates (i-C4H10) and n-butane (n-C4H10). These NDIR response factors Hydrogen (H2) or Hydrogen Sulfide (H2S) will reduce the accuracy. +41 (0) 41 768 6111 +65 6777 8211 +1 952 949 7001 +971 4 8118100 closely correspond to the heating values and allow determination of Field of applications for both configurations are given in Tables 1 and +41 (0) 41 768 6300 +65 6777 0947 [email protected] +971 4 8865465 heating value and Wobbe index. The bench shows low interference 2 for an accuracy of 2%. [email protected] [email protected] [email protected] to water, CO2 and CH4, but is restricted to low amounts of nitrogen 00830-1500-4530, Rev AA POWER POWER POWER POWER Table 1: Possible concentration ranges for heating value Table 2: Possible concentration ranges for Wobbe index measurements measurements thiscustomer customerdid didnot notreplace replacethe theold oldtechnology technologywith withaacompatible compatible IfIfthis Ifcontinuous this customer did not replace the oldrisked technology with a compatible level measurement, they highoperations operations and continuous level measurement, they risked high and High BTU-version they risked Low BTU-version continuous level measurement, high operations and maintenancecosts costs associated with)obsolete displacer parts. Without a maintenance associated displacer (typically above 40 with MJ/m3obsolete (typically below 40parts. MJ/m3)Without a maintenance costs associated with obsolete displacer parts. Without a reliablelevel levelmeasurement, measurement, the plant riskedprocess processinstability, instability, potential reliable the plant risked potential reliable level measurement, the plant risked process instability, potential CH4, % damage, 70potential -potential 98 CH4, % equipment damage,and and outages. 70 - 98 equipment outages. equipment damage, and potential outages. CO 0 - 10 0 - 10 CO 2 SOLUTION SOLUTION C2H6, % SOLUTION High BTU-version Low BTU-version (typically above 40 MJ/m3) (typically below 40 MJ/m3) 70 - 98 70 - 98 0 - 10 0 - 10 0 - 12 0 - 12 2 0 - 12 0 - 12 C2H6, % AsaaH solution tothis thisproblem, problem, E.ONinstalled installedaaRosemount Rosemount 5301GWR GWRwith with% As solution to 5301 ,% < 4.0 E.ON < 1.0 C3+, <3 <2 2 As a solution to this problem, E.ON installed a Rosemount 5301 GWR with rigid single lead probe. The Rosemount 5300 was installed in a chamber rigid single lead probe. The Rosemount 5300 was installed in a chamber C3+, % < 3.5 < 2.0 H2, % <1 < 0.5 rigid single lead probe. The Rosemount 5300 was installed in athe chamber andtested testedagainst against new electronic displacer. During testing, the GWR and aanew electronic displacer. During testing, GWR H S, ppm < 500 < 500 He, % < 1 < 0.5 and tested against adisplacer new electronic displacer. During testing, thechanges GWR 2 outperformed thedisplacer was unaffected bytemperature temperature changes outperformed the asasititwas unaffected by Nthe ,% <1 no limitation outperformed the displacer as it was by temperature changes 2 andhad hadaafaster faster response time to theunaffected rapidlevel levelchanges. changes. Furthermore, and response time to the rapid Furthermore, the and hadsignal a faster response time the rapid level changes. Furthermore, the H2S, ppm < 500 < 500 strong signal enabled bydirect directto switch technology allowed theRosemount Rosemount strong enabled by switch technology allowed the strong signal enabled by direct switch technology allowed the Rosemount 5300to toaccurately accuratelymeasure measureininturbulent turbulentconditions. conditions. Other gas compositions on request. 5300 5300 to accurately measure in turbulent conditions. E. ON was pleased with the performance of the Rosemount 5301 and E. ON was pleased with the performance of the Rosemount 5301 and E. ON was pleased with the performance of the Rosemount 5301 and Analyzer Options eventuallyreplaced replacedthe theelectronic electronicdisplacer displacerwith withanother anotherRosemount Rosemount5301 5301 eventually eventually the electronic displacer with another Rosemount 5301 The analyzerreplaced allows the measurement of lower and upper value and Wobbe Transmitter. Business results included reduction maintenance costs for index. Results can Transmitter. Business results included aareduction ininheating maintenance costs for 3 results Transmitter. Business included aother reduction incalibration maintenance costs be expressed in MJ/m , BTU/ft or kcal/m ,does units on request. Values can befor calculated for following both laborand and parts. Since3the the GWR3does not need calibration and both labor parts. Since GWR not need and both laboraaand Since the GWR does not need calibration and combinations of parts. reference temperatures ofwere combustion and metering: 15/15 °C, 0/0 °C, 15/0 °C, 25/0 °C, provides reliable measurement, they were able to maintain process provides reliable measurement, they able to maintain process provides athereby reliable measurement, they ablepower to maintain process 20/20 °C, thereby 25/20 °C.minimizing stability minimizing therisk risk reduced power generation, stability the ofofwere reduced generation, secondRosemount Rosemount5301 5301replaces replacesthe theelectronic electronic AAsecond stability thereby minimizing the risk of reduced power generation, outages,and andequipment equipmentdamage. damage. Adisplacer. second Rosemount 5301 replaces the electronic outages, displacer. outages, and equipment damage. Beside general purpose solution, flame proof housing for installation in ATEX Zone 1 anddisplacer. Zone 2 and CSA Class I Div 2 or Zone 1 and Zone 2 is available. Optional features are auto-calibration, flow sensor with RESOURCES RESOURCES RESOURCES alarm and an internal sample gas pump. Emerson Automation Solutions PowerIndustry Industry Emerson Automation Solutions Power Emerson Automation Solutions Power Industry Emerson.com/en-us/industries/automation/power-generation Emerson.com/en-us/industries/automation/power-generation Emerson.com/en-us/industries/automation/power-generation Rosemount5300 5300Series SeriesGuided GuidedWave WaveRadar Radar Rosemount Rosemount 5300 Series Guided Wave Radar Emerson.com/catalog/en-us/rosemount-5300-gwr-transmitter Emerson.com/catalog/en-us/rosemount-5300-gwr-transmitter Emerson.com/catalog/en-us/rosemount-5300-gwr-transmitter StandardTerms Termsand andConditions ConditionsofofSale Salecan canbebefound foundon onthe theTerms Termsand andConditions ConditionsofofSale Salepage. page. Standard TheEmerson Emersonlogo logoisisa atrademark trademarkand andservice servicemark markofofEmerson EmersonElectric ElectricCo. Co. The Standard Terms and Conditions of Sale can be found on the Terms and Conditions of Sale page. Rosemountand andRosemount Rosemountlogotype logotypeare aretrademarks trademarksofofEmerson. Emerson. Rosemount The Emerson logoare is athe trademark and service mark ofowners. Emerson Electric Co. Allother othermarks marks propertyof oftheir their respective All are the property respective owners. Rosemount and Rosemount logotype are trademarks of Emerson. 2017Emerson. Emerson.All Allrights rightsreserved. reserved. ©©2017 All other marks are the property of their respective owners. © 2017 Emerson. All rights reserved. Linkedin.com/company/Emerson-Automation-Solutions Linkedin.com/company/Emerson-Automation-Solutions Twitter.com/Rosemount_News Twitter.com/Rosemount_News Linkedin.com/company/Emerson-Automation-Solutions Facebook.com/Rosemount Facebook.com/Rosemount Twitter.com/Rosemount_News Youtube.com/user/RosemountMeasurement Youtube.com/user/RosemountMeasurement Facebook.com/Rosemount Google.com/+RosemountMeasurement Google.com/+RosemountMeasurement Youtube.com/user/RosemountMeasurement EuropeRegional RegionalOffice Office Europe Emerson Automation Solutions Emerson Automation Solutions Europe Regional Office EuropeGmbH GmbH Europe Emerson Automation Solutions Google.com/+RosemountMeasurement AsiaPacific PacificRegional RegionalOffice Office MiddleEast Eastand andAfrica AfricaRegional RegionalOffice Office Asia Middle Emerson Automation Solutions Emerson Automation Solutions Automation Solutions Emerson Automation Asia Pacific Regional Office Middle East and AfricaSolutions Regional Office Emerson AsiaPacific Pacific PteLtd Ltd Solutions Asia Pte Emerson Automation Emerson Automation Solutions Shakopee, MN55379, 55379, USA Shakopee, MN 6021 Innovation Blvd. USA Europe GmbH Neuhofstrasse 19aP.O. P.O.Box Box1046 1046 Neuhofstrasse 19a JebelAli AliFree Free ZoneBox - South Jebel - South 22 Emerson FZEZone P.O. 17033, Pacific Pte Ltd 1Pandan Pandan Crescent 1Asia Crescent +1800 800 999 9307 +1952 952906 9068888 8888 +1 999 9307 oror+1 Shakopee, MN 55379, USA +1 952 949 7001 +1 952 949 7001 +1 800 999 9307 or +1 952 906 8888 CH6340 6340Baar, Baar,Switzerland Switzerland CH Neuhofstrasse 19a P.O. Box 1046 +41 (0)41 41 7686111 6111 +41 (0) 768 CH 6340 Baar, Switzerland Dubai, United Arab-Emirates Emirates Dubai, United Arab Jebel Ali Free Zone South 2 +971 4 8118100 +971 4 8118100 Dubai, United Arab Emirates 128461 Singapore 1Singapore Pandan 128461 Crescent +656777 6777 8211 +65 8211 Singapore 128461 GlobalHeadquarters Headquarters Global Emerson AutomationSolutions Solutions Emerson Automation Global Headquarters Emerson Automation 6021Innovation Innovation Blvd. Solutions 6021 Blvd. [email protected] [email protected] +1 952 949 7001 [email protected] 00830-1500-4530,Rev RevAA AA 00830-1500-4530, 00830-1500-4530, Rev AA 0830-0000-0000, Rev AA EmersonFZE FZEP.O. P.O.Box Box17033, 17033, Emerson +41(0) (0)41 41768 7686300 6300 +41 6111 [email protected] [email protected] +41 (0) 41 768 6300 +9714448865465 8865465 +971 +971 8118100 [email protected] [email protected] +971 4 8865465 +656777 67770947 0947 +65 +65 6777 8211 [email protected] [email protected] +65 6777 0947 [email protected] [email protected] [email protected]
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