نتایج جستجو برای: boiler efficiency

تعداد نتایج: 391026  

2012
Xiaoying Hu Tao Wang Zhihui Dong Hanfei Zhang

N2O emissions from coal fired fluidized-bed combustion are approximately 30–360 mg/Nm, much higher than that from pulverized coal combustion (less than 30 mg/Nm). One approach to reduce the N2O is to reburn the biomass gasification gas in the coal-fired fluidized bed. In this paper, the effects of gasified biomass reburning on the integrated boiler system were investigated by both simulation an...

The boiler is one of the most vulnerable parts of a power plant, which is responsible for producing steam for moving turbines.  In order to increase the thermal efficiency of the power plant, it is necessary to prevent heat loss in the boiler combustion chamber and simultaneously control the environmental pollutant parameters such as NOx and CO.  Failure to control environmental pollutants will...

2012
Sudha Thavamani Matthias Behmann

The power generation companies have to seek more superior and sophisticated technologies in order to gain an edge on their competitors owing to continually rising demands by environmental and governmental authorities and consumers. Intelligent Combustion Optimization is a proven methodology to accomplish plant performance improvements, boiler efficiency increase and reduction in emissions. The ...

Journal: :international journal of environmental research 2012
e. amirabedin d. mcilveen-wright

biomass co-firing with lignite represents an attractive solution for operating lignite-fired thermalpower plants (tpp) with the dual advantage of using local renewable resources and simultaneously reducingemissions. the subject of this study is technical and environmental investigation of the feasibility of the cofiring of soma lignite with some dried agricultural residues in the soma thermal p...

1995
Thomas A. Henzinger Howard Wong-Toi

We model a steam-boiler control system using hybrid automata. We provide two abstracted linear models of the nonlinear behavior of the boiler. For each model, we de ne and verify a controller that maintains the safe operation of the boiler. The less abstract model permits the design of a more e cient controller. We also demonstrate how the tool HyTech can be used to automatically synthesize con...

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...

2016
H. W. Hu G. H. Tang D. Niu

Recovery of both latent heat and condensate from boiler flue gas is significant for improving boiler efficiency and water conservation. The condensation experiments are carried out to investigate the simultaneous heat and mass transfer across the nanoporous ceramic membranes (NPCMs) which are treated to be hydrophilic and hydrophobic surfaces using the semicontinuous supercritical reactions. Th...

2015
K. Padma priya P. Naveen Kumar

The boiler drum level control unit is one of the main parameter in the thermal power station. Currently the boiler drum parameters are monitored only by using MATLAB software. There is no automatic control available. In the proposed system the boiler drum parameters such as temperature level, pressure level, water level and Droplet identifier are measured and controlled by using embedded proces...

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