Methods for the Analysis of Boiler Water
نویسنده
چکیده
Recommendations for Boilers up to 250 psig Ca 0.40 2.50 Na. 0.46 2.17 CaO. 0.56 1. 79 NaOH. 0.80 1. 25 Ca(HC031. . 1. 62 0.617 Na 2C03 1. 06 0.943 CaSO. 1. 36 0.735 NaHC03 1. 68 0.60 CaCl2 1.11 0.901 Na 2SO•. 1.42 0.704 Mg . 0.24 4.17 NaCI 1.17 0.855 MgO 0.40 2.48 CO2 , 0.44 2.27 MgC03 • 0.84 1.19 C03 0.60 1. 67 Mg(HC03) 2 ' 1. 46 0.685 HC03 1. 22 0.82 MgSO•. 1. 20 0.833 SO•. 0.96 1.04 MgCl2 0.95 1.053 Cl 0.71 1. 41 for control I refer you to an excellent paper by Hillier.' These quantities must be maintained within strict limits which will vary depending on boiler besign and local conditions. As a guide to boiler control, I give the recommendations of four major concerns interested in boiler treatment for boilers up to 250 psig (Table I).
منابع مشابه
Nonlinear Modelling of Kerman Combined Cycle Power Plant Drum-Boiler and Drum Level control especially in trip conditions
There are various methods of power generation such as combined cycle power plants. There are many variables in a power plant boiler unit, but the most important variables are Pressure and specially drum level that control system should be put it in the safe range. The purpose of this article is, modifying the oscillatory behavior of the drum level of Kerman combined cycle power plant and especi...
متن کاملSimplex design method in simultaneous spectrophotometric determination of silicate and phosphate in boiler water of power plant and sewage sample by partial least squares
Partial least squares modeling as a powerful multivariate statistical tool was applied tothe simultaneous spectrophotometric determination of silicate and phosphate in aqueoussolutions. The concentration range for silicate and phosphate were 0.02-0.6 and 0.4-3 μg ml-1,respectively. The experimental calibration set was composed with 30 sample solutions using amixture design for two component mix...
متن کاملModeling and Control of Water Level in Boiler Drum for Nassiriyah Thermal Power Plant
The boiler drum process is a nonlinear, complex and multivariable process which includes significant time delay. Therefore, the control on the water level in the drum is not easy and ideal. The first objective of this paper is to model the drum water level referring to 210 MW power unit for Nassiriyah thermal power plant. The second objective is to study the water level controller operation wit...
متن کاملControl Reconfiguration of a Boiler-Turbine Unit After Actuator Faults
Boiler-turbines are one of the most important parts in power generation plants. The safety problem in such systems has always been a special concern. This paper discusses the application of control reconfig uration by fault-hiding approach for a boiler-turbine unit. In Fault-hiding approach, after occurrence of a fault, nominal controller of the system remains unchanged; instead, a reconfigurat...
متن کاملExtraction of Vanadium Oxide from Boiler Fuel Ash
Fuel oil used in power plants contain metal impurities like Vanadium. After combustion, this metal remains in boiler fuel ash in the form of oxide. In this research, extraction of Vanadium oxide from fuel ash has been investigated. Two processes were used for this purpose. A pyro- hydrometallurgy and a hydrometallurgy process. In the pyro-hydrometallurgy process, using sodium carbonate, salt ro...
متن کاملتحلیل انرژی و اگزرژی نیروگاه بخار پالایشگاه اصفهان
In this paper, the power plant cycle of Isfahan refinery with the capacity of 64 MW was discussed and irreversibility percentage and exergy efficiency were calculated for cycle component using exergy, energy and mass balance equations. Also, the results obtained from exergy analysis introduced boiler as the most important factor for exergy destruction. Increasing feed water temperature has a...
متن کامل