Optimum thermal design of modular compact heat exchangers structure for heat recovery steam generators

Franco, Alessandro; Giannini, Nicola

doi:10.1016/j.applthermaleng.2004.08.018

Cited by 35 publications

(10 citation statements)

References 7 publications

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“…2 and relations Nos (6) to (12), the final simplified model has concluded which are applied for the entry section of mathematical programming analysis calculations for defining the optimal response. It should be considered the numerical values of the parameters' specifications are entered in equations in order to simplify the equations forms; and also tube length parameters (L) are considered constant and its cause is the location of the exchanger which is installed in exhaust with fixed geometrical dimensions [15].…”

Section: Final Simplified Modelmentioning

confidence: 99%

Optimal Design for Compact Heat Exchanger (Che) by Heat Transfer Viewpoint as an Air Pre-Heater

2015

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In the provided research, the design of CHE (Compact Heat Exchanger) is evaluated and discussed from the heat transfer aspect. Benefiting from present equations and considering the objective concepts, the procedural chart is proposed for achieving optimal design. The main goal of this research study is implementing a new algorithm for optimization to modify a conventional design of CHE. Nonlinear gradient mathematical modeling with different scenarios on free or related variables is developed to cover the purpose of maximizing total heat transfer capacity. By mathematical programming analysis, a model has been provided for optimal design and developed in the GAMS (Generalized Algebraic Modelling System) software. Also for further model test rig development purpose, the proposed model has been incorporated in Matlab software using independent variants and the accuracy of the responses was again evaluated. The comparison indicated 109W/K difference in the exchanged thermal energy rate compared to the optimal exchanger operation conditions. After introducing case study to this model, an acceptable response with 0.997W/K difference on optimal point was achieved. Solving the model indicated 0.833W/K difference with the optimal point, which confirms the resulted technical responses.

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Section: Final Simplified Modelmentioning

confidence: 99%

Optimal Design for Compact Heat Exchanger (Che) by Heat Transfer Viewpoint as an Air Pre-Heater

2015

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“…The thermodynamic optimization is based on the minimization of exergy loss, while the thermoeconomic optimization is based on the minimization of the total HRSG cost. A. Franco et al [3] used a kind of compact heat exchanger to increase the efficiency and reduce the size of the unit. Omer F.can et al [4] introduced a simplified energy, exergy and economical analysis of a cogeneration system, and the analysis was performed based on the measured data during the operation time of the system.…”

Section: Introductionmentioning

confidence: 99%

Optimal thermodynamic and economic volume of a heat recovery steam generator by constructal design

Norouzi

Amidpour

2012

International Communications in Heat and Mass Transfer

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“…Franco and Casroso [1] described thermodynamic optimization of the A c c e p t e d M a n u s c r i p t operative parameters for the Heat Recovery in Combined Power Plants. Franco and Giannini [2] discussed optimum thermal design of modular compact heat exchanger configurations for heat recovery steam generators. Segmented fin tube design data is available and detailed in escoa manual [3].…”

Section: Introductionmentioning

confidence: 99%

Investigations for performance enhancement of dual pressure HRSG in gas/steam combined cycle power plants

Sharma

Singh

2015

International Journal of Ambient Energy

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HRSG is the vital equipment in gas/steam CCPP which plays important role in enhancing the overall performance of the plant. HRSG is designed on the basis of the size of gas and steam turbines used in the power plant. Therefore HRSG directly affects performance of CCPP and its optimization based on physical design can improve the plant performance. In the present study the plant data of CCPP of NTPC Ltd. at Auraiya (U.P.), India has been considered for study. A segmented finned model has been chosen as it is preferred arrangement [4] and thermodynamic investigations have been carried upon the dual pressure HRSG in gas/steam CCPP in the perspective of maximum heat recovery and minimum pressure loss. The performance investigations of varying physical parameters on dual pressure HRSG with segmented fins are useful for CCPP designers and for all those who are engaged in the area of heat recovery.

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Optimum thermal design of modular compact heat exchangers structure for heat recovery steam generators

Cited by 35 publications

References 7 publications

Optimal Design for Compact Heat Exchanger (Che) by Heat Transfer Viewpoint as an Air Pre-Heater

Optimal Design for Compact Heat Exchanger (Che) by Heat Transfer Viewpoint as an Air Pre-Heater

Optimal thermodynamic and economic volume of a heat recovery steam generator by constructal design

Investigations for performance enhancement of dual pressure HRSG in gas/steam combined cycle power plants

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