Fast start-up analyses for Benson heat recovery steam generator

Alobaid, Falah; Pfeiffer, Stefan; Epple, Bernd; Seon, Chil-Yeong; Kim, Hyun-Gee

doi:10.1016/j.energy.2012.08.020

Cited by 37 publications

(10 citation statements)

References 16 publications

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“…In figure 4, the SIMULINK model of proposed system is presented, in which, boiler model operation is shown in its transfer function models. The detail of the transfer functions are presented in table 1.…”

Section: Resultsmentioning

confidence: 99%

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ANFIS Controller for Water Level Control of a Boiler Drum

Hemalatha¹,

Juliet²

2016

IJIES

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Abstract:The water level in boiler drum is the critical control parameter to be addressed for providing the efficient and safe operation of steam generators in power plants. The regulation is achieved by using the Artificial Intelligence (AI) technique, namely, Adaptive Neuro-Fuzzy Inference System (ANFIS). It has the capability of self-learning as ANN with the linguistic expression function of fuzzy inference, whose membership functions and fuzzy rules are acquired from a large lot of existing data instead of experience. So, it is well renowned for its control performance in the power system area due to the nonlinear nature and robustness to system parameters uncertainties in multidisciplinary domains and power system too. Here, ANFIS controller takes the error and change of error in water level as inputs to control the actuator of inflow water such that the steam flow out of the steam generator meets the requirement of turbine unit set point which indirectly resembles the demanded load by the Generation System Operator (GSO). The performance of the proposed ANFIS controller is analyzed in terms of tracking the water level set point of boiler drum. For this purpose, a boiler model is developed using the MATLAB/SIMULINK working platform. Then, the proposed ANFIS controller is designed and tested on it for water level regulation. The simulation results are examined and compared with existing FIS technique.

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Section: Resultsmentioning

confidence: 99%

“…From the past few decades, fossil fuels are being served as energy security for economic and social development of each country in the modern world [1]. But, the efficiency of these power plants is very low and there is a need for reduction in the fuel consumptions as well as specific gas emissions [2,3].…”

Section: Introductionmentioning

confidence: 99%

ANFIS Controller for Water Level Control of a Boiler Drum

Hemalatha¹,

Juliet²

2016

IJIES

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“…It should be mentioned here that the same control structures are applied to both HRSG models. In this manuscript, these controllers will only be described briefly, while further information can be found in Alobaid et al [15].…”

Section: Control Structurementioning

confidence: 99%

A comparative study of different dynamic process simulation codes for combined cycle power plants – Part A: Part loads and off-design operation

Alobaid

Starkloff

Pfeiffer

et al. 2015

Fuel

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“…The study case considered a coal-fueled water tube boiler with 100 ton/h steam flow rate capacity. Even though exhaust gases presented high energy content, exergy analysis revealed that strategies aimed at minimizing the destruction of the capability to generate work should focus on: (1) heat transfer between exhaust gases and working fluid; and also the (2) combustion process itself. Technological advances applied to the reduction of exergy destruction in (1) and (2) are presented and discussed herein.…”

Section: List Of Symbolsmentioning

confidence: 99%

“…A two-pressure level heat recovery steam generator underwent layout optimization in [10], a multi-objective optimization was applied to a pressurized oxy-coal combustion HRSG with recirculation of exhaust gases in Zebiana and Mitsosa [34], and the inlet duct geometry of HRSG was optimized in [11], enhancing flow uniformity. Other studies took into account the transient condition in steam generators: a HRSG cold startup was investigated in Esfahania et al [9], and the dynamic behavior of a Benson heat recovery steam generator was studied in Alobaida et al [1]. Transient behavior was investigated in Mertensa et al [22], in a once-through and natural-circulation heat recovery steam generator.…”

Section: Introductionmentioning

confidence: 99%