...S. Gowreesh; J. Estrada; C. K. Ong; T. K. Xiao A boiler or steam generator is a device used to create steam by applying heat energy to water. Compact boilers are specially designed to generate unlimited amount of steam in short time span for home appliance applications. The main objective...

...Dan Lundmark; Christian Mueller; Rainer Backman; Maria Zevenhoven; Bengt-Johan Skrifvars; Mikko Hupa Combustion of biofuel mixtures for heat and power production is often combined with ash related operational problems. Their reliable prediction is therefore essential in order to improve boiler...

... temperature attained. The internal heat generation in the biomass is found to start at temperatures as low as 200 ° C . Thus, premixing some biomass with inert bed materials could reduce the combustion start-up time of a fluidized bed boiler, reducing at the same time the start-up cost by saving...

...Prabir Basu; Munish Chandel; James Butler; Animesh Dutta Loop-seal is a critical component of a circulating fluidized bed (CFB) boiler, and yet very little information on its working or design is available in published literature. Among the limited available information, none is on twin-exit loop...

...Durmus Kaya; Muharrem Eyidogan In this study, “energy efficiency” study has been performed for a natural gas fuelled boiler, operating at 42,000 kPa pressure and 713.15 K temperature, with a nominal capacity of 33.33 kg/s steam. Within this frame, temperature, pressure, velocity, and gas analysis...

.... 27 11 2007 04 09 2008 05 02 2009 boilers condensers (steam plant) diesel engines energy conservation exergy fans fluid dynamics pumps Improved utilization of energy is becoming increasingly desirable and necessary for economic and environmental benefit. One way...

... temperature; an increase in this will result in efficiency loss of the boiler. Besides, the higher PA inlet temperature can be attained through the economizer gas bypass, the steam coiled APH, and the partial flue gas recirculation. The PA/coal ratio, a variable quantity within the mill operating range...

... to the steam flowing in the superheater tubes. Buecker , B. , 2002 , Basics of Boiler and HRSG Design , 2nd ed. , PennWell , Tulsa, OK . Lee , B. , Kwon , S. B. , and Lee , C. , 2002 , “ On the Effect of Swirl Flow of Gas Turbine Exhaust in an Inlet Duct of Heat Recovery Steam...

...Peter L. Rozelle; Sarma V. Pisupati; Alan W. Scaroni The fluidized bed combustion (FBC) process, used in power generation, can handle a variety of fuels. However, the range of fuels that can be accommodated by an FBC boiler system is affected by the ability of the fuel, sorbent, and ash-handling...

...Enrico Sciubba; Nicola Zeoli A numerical three-dimensional (3D) simulation was performed on the flow of a particle-laden steam jet impinging on the tubes of the superheating section of a waste-burning industrial boiler: the study was conducted to investigate the causes of excessive erosion...

... and the effect of hydration on different particle size fractions of the ash. The free lime content of the ash is significantly lower than expected based on the elemental analysis. Bed ash from the circulating fluidized bed combustion boilers owned and operated by the Nelson Industrial Steam Company Ltd. (NISCO...

...K. S. Bhambare; Sushanta K. Mitra; U. N. Gaitonde Modeling of a natural circulation boiler for a coal-fired thermal power station is presented here. The boiler system is divided into seven subcomponents, and for each section, models based on conservation of mass, momentum, and energy are formulated...

...Wenli Duo; Ibrahim Karidio; Larry Cross; Bob Ericksen Salt-laden hog fuel (wood waste) is burnt in a fluidized bed boiler converted from a traveling grate boiler to generate steam for a specialty paper mill. The converted boiler has a design capacity of 156 t ∕ h of steam from hog and actual...

...Jack A. Fuller; Harvie Beavers; Robert Bessette The authors analyzed data from a fluidized bed boiler survey distributed during the spring of 2003 to develop appropriate AFBC (Atmospheric Fluidized Bed Combustion) performance benchmarks. The survey was sent to members of CIBO (Council of Industrial...

...Jeff W. Kerner; Gary W. Stetler The first commercial screw cooler on record for cooling bottom ash from fluidized bed combustion (FBC) boilers was installed in 1979. Since then, over 300 ash screw cooler (ASC) machines have been used for this duty worldwide. The relatively quick upsurge...

...Andreas Johansson; Filip Johnsson; Bengt-Åke Andersson High in-bed heat transfer and low corrosive environment imply that the loop seal of a circulating fluidized bed (CFB) boiler is an advantageous location for superheaters. In order to increase the knowledge on the flow pattern and the heat...

...Xiaofeng Lu; R. S. Amano Circulating fluidized bed (CFB) boiler has entered electric power industry field because of burning a wide range of fuels, while still achieving strict air emissions requirements. This study focuses on a 300 MW CFB boiler, which will be one of the largest CFB boiler...

...-scale utility FB boiler and the raw commercial limestone used in the same boiler. Hydration-reactivation tests were carried out at temperatures of 40 ° C and 80 ° C and for curing times ranging from 15 minutes to 2d, depending on the sample. The influence of hydration conditions on the enhancement...

...Ibrahim Kilicaslan; Engin Ozdemir This paper investigates the potentional for energy saving in a boiler house that can be achieved through installing a variable speed drive (VSD) for the fan motor by including an oxygen trim control cycle. This investigation is carried out through surveys; energy...

... intervenes. Diagnosis is the art of discovering the anomalies occurring in the components, i.e., degradation of their behavior that provoke variations in overall efficiency. combined cycle power stations steam turbines boilers gas turbines fault diagnosis power system faults power...