Power Application Notes Index
|Fully Integrated Modbus Communication Functions on STARDOM PLC/RTU|
|STARDOM field control node (FCN) autonomous controllers allow both Modbus master and slave functions to run simultaneously.
|A package boiler operates more efficiently if the oxygen concentration in the flue gas is reduced. Optimizing air intake for boiler operation requires continuous measurement of the oxygen concentration in the flue gas.
|Boiler Leak Detection and Ion Exchange Resin Monitoring|
|Seawater leak detection is the post-condensation water quality management processes. Damage to the ion exchange resin, which deionizes the supplied water, is also monitored during this process, and both of these applications are executed by a conductivity analyzer.
|Measurement in Cogeneration and Captive Power Boiler|
|Steam is still one of the most popular methods of providing an energy source to a process and its associated operations. The more accurate and reliable measurements that are made, the more informed decisions can be taken that affect costs and product quality.
|Flue Gas Desulfurization|
|Wet flue gas desulfurization or scrubber systems are an excellent way of reducing the sulfur dioxide emissions caused by coal combustion boilers.
|pH Measurement in Limestone-Gypsum Flue Desulfurization|
|In limestone-gypsum flue gas desulfurization systems, the consumption of a desulfurization agent (lime) is controlled using online pH meters. The EXA AUTO CLEAN chemical cleaning system achieves cost effective and accurate pH measurement.
|pH Measurement in Flue Gas Desulfurization Systems|
|The EXA AUTO CLEAN chemical cleaning system automates the acid cleaning process,
which not only saves both time and expense but also ensures precise pH measurement
over long periods.
|Continuous Dust Monitoring of Exhaust Gases|
|Conventional dust measurement is affected by dust buildup, deviation of the light axis and necessitating frequent maintenance. The DT450G Dust Monitor is not affected by dust accumulation and makes the instrument ideal for continuous dust monitoring.
|Measurement of O2 Concentration in Exhaust Gases|
|In a pulverized coal-fired boiler of a large power plant, an oxygen analyzer is essential for combustion control. Oxygen analyzers that employ a sampling method may be subject to wear or clogging, resulting in increased maintenance workload and cost.
|Measurement of NOx Concentration|
|Optimum control of ammonia injection is achieved by NOx measurement, thereby reducing the cost of running such equipment. The highly sensitive and reliable SG700 stack gas analyzer is most suitable for the continuous measurement of NOx concentrations.
|Integration of Real-time Utility Monitoring with a DCS|
|The discharge of improperly treated industrial chemicals and fuel gas can have a major impact on the environment, posing a serious threat to public health. Concurrent with the global growth of manufacturing operations to keep pace with market trends, many countries are taking measures to deal with environmental problems.
|Heat and CO2 Transfer System|
|Yokogawa ensures a reliable heat and CO2 transfer system by using the standard GPRS protocol. The exclusive use of webbased technology enables the market gardeners to go online to order heat and CO2 and view information.|
|SCADA-RTU Communications Using GPRS|
|To make the most of the advantages of GPRS, Yokogawa's STARDOM FCN/FCJ intelligent RTUs and FAST/TOOLS SCADA package have several functions that reduce the number of packets that must be sent. This dramatically lowers communication fees.|
|Level transmitter configuration can be very time consuming. DPharp transmitters with advanced software functionality eliminate this time consuming task. With maintenance shops getting smaller, finding equipment that allows us to do more with less becomes a priority.
|Low Flow Cut-off|
|One of the most common applications for differential pressure transmitters is flow measurement. DPharp differential pressure transmitters have some unique signal conditioning features to eliminate instability at low flow rates.