Increasing safety, efficiency of operation and maintenance by wireless technology
Hydrogen cooling system of Turbine generator
Turbine generator is commonly used at captive power plant in multiple industry as well as large commercial power plant. Turbine generator converts motion energy to rotary motion, and it generates electric power. It has high speed rotary motion and generates huge amount of electric power, thus turbine generator itself produces heat by friction and electro-magnetic energy. The hydrogen cooling system is equipped to keep the adequate operation temperature. Efficient cooling for turbine generator is realized by the one of characteristics of hydrogen, quite higher thermal conductivity. However, hydrogen’s explosion limit concentration is between 4 to 75% in the air and hydrogen leak leads increasing risk of explosion accident. Accordingly, hydrogen density within turbine generator keeps more than 98% in large commercial power plant. Yokogawa’s gas density meter GD402* and GD40* are commonly used and it contribute to safety operation in this application.
Challenges for operation
It is commonly to use hydrogen for cooling turbine generator but there are multiple challenges for its leak detection.
- Hydrogen leakage is directly linked to safety risk in plant operation
- Hydrogen’s molecular architecture is quite small, easier for leakage compared to other substances
- It is difficult to define installation point for fixed type gas detector and its trial and error due to hydrogen's higher diffusivity
- It must be conducted to identify leaking point by portable type gas detector even such operation is recognized as dangerous
- Time consuming for identify hydrogen leakage location
Efficient method for hydrogen leak detection to ensure safety is required.
Overview of hydrogen cooling system
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YOKOGAWA’s solution
Wireless Hydrogen leak detection system can be realized by combination of Field Wireless system which has high reliability and higher data refresh, and partner’s wireless gas detector. User can Install wireless gas detector to expected location of hydrogen leakage and leak experienced location such as connection points of pipes and asset, without any complexity of trial and errors, construction, and wiring/relocating.
For monitoring the hydrogen leakage, not only by DCS but also it is possible to construct simple monitoring and alerting system by Data Logging Software GA10 and Data Logger GM10 from SMARTDAC+ series.
If wireless gas detector supports safety communication capability, it is possible to construct SIL2 Wireless Gas Detection system combined with safety system ProSafe-RS. Integrating wireless hydrogen leakage detection solution for turbine generator hydrogen cooling system to existing Fire & Gas application of Safety Instrumented System makes it possible to expand coverage of Fire & Gas application more.
Industrieën
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Stroom
Halverwege de jaren zeventig betrad Yokogawa de energiesector met de introductie van het EBS Electric Control System. Sindsdien is Yokogawa standvastig doorgegaan met de ontwikkeling van onze technologieën en mogelijkheden om onze klanten wereldwijd de beste diensten en oplossingen te bieden.
Yokogawa heeft het wereldwijde netwerk voor energieoplossingen beheerd om een actievere rol te spelen in de dynamische mondiale energiemarkt. Dit heeft een nauwer teamwerk binnen Yokogawa mogelijk gemaakt, waarbij onze wereldwijde middelen en branchekennis bij elkaar zijn gebracht. De experts uit de energiesector van Yokogawa werken samen om elke klant de oplossing te bieden die het beste aansluit bij zijn geavanceerde eisen.
Gerelateerde producten & oplossingen
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Data Logging Software GA10
The latest software that enables you to build a DAQ system without programming. Designed for maximum compatibility with Yokogawa recorders, data loggers, temperature controllers, and power monitors, GA10 can also acquire data via Modbus communications.
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Modular GM10
SMARTDAC+TM GM10 datalogger heeft een modulaire architectuur die de benodigde gegevens kan verkrijgen. Door niet alleen I/O te ondersteunen, maar ook veel communicatieprotocollen zoals 920MHz draadloos, Modbus en ga zo maar door. Monitor- en instellingswijzigingen zijn beschikbaar via Bluetooth. Ondersteuning van FDA 21 CFR Part11 en AMS2750E/NADCAP.
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SIS (Up to SIL 2) ProSafe-RS Lite
ProSafe-RS Lite voldoet aan de internationale veiligheidsnorm voor toepassingen tot SIL2. U kunt voor de ProSafe serie kiezen uit SIL2 (ProSafe-RS Lite), SIL3 (ProSafe-RS) en SIL4 (ProSafe-SLS). Als uitgebreide SIS-leverancier zal Yokogawa uw functionele safety management volledig ondersteunen gedurende de gehele levenscyclus van de installatie.
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SIS (Up to SIL 3) ProSafe-RS
De ProSafe-RS is een Safety Instrumented System dat is gecertificeerd door de Duitse certificeringsorganisatie TÜV om te voldoen aan Safety Integrity Level (SIL) 3, zoals gespecificeerd in IEC 61508.
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YFGW410 Field Wireless Management Station
YFGW410 Field Wireless Management Station has system manager/security manager/gateway function based on ISA100.11a, and combining this with Field Wireless Access Point(YFGW510) and/or Field Wireless Media Converter(YFGW610) composes the field wireless system.
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YFGW520 Field Wireless Access Point
YFGW520 Field Wireless Access Poin has backbone router function based on ISA, and combining this with Field Wireless Management Station (YFGW410) and/or Field Wireless Media Converter (YFGW610) composes the field wireless system.
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Field Wireless
The flexibility of wireless solutions enables less investment in infrastructure while providing greater insights into plant operations.
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Wireless Infrastructure
Yokogawa offers an IoT Enabled ISA100 compliant Gateway, a Access Point, a Media Converter, and a Management Station. All to help design a network to meet your needs.