Heat Loss in Industry: Boiler Performance Analysis

Meksoub, A.; Elkihel, Ali; Gziri, Hassan; Berrehili, A.

doi:10.1007/978-981-15-6259-4_67

Cited by 2 publications

(3 citation statements)

References 9 publications

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“…The former can be set to another value by the reader, without impacting the core ideal Rankine cycle itself. This is an advantage, due to the flexibility and ease of representing the effect of losses, such as friction in moving parts, heat transfer to the surroundings, and electric generator loss [69][70][71][72].…”

Section: Methodsmentioning

confidence: 99%

Condenser Pressure Influence on Ideal Steam Rankine Power Vapor Cycle using the Python Extension Package Cantera for Thermodynamics

Marzouk

2024

Eng. Technol. Appl. Sci. Res.

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This study investigates the Rankine vapor power thermodynamic cycle using steam/water as the working fluid, which is common in commercial power plants for power generation as the source of the rotary shaft power needed to drive electric generators. The four-process cycle version, which comprises a water pump section, a boiler/superheater section, a steam turbine section, and a condenser section, was considered. The performance of this thermodynamic power cycle depends on several design parameters. This study varied a single independent variable, the absolute pressure of the condenser, by a factor of 256, from 0.78125 to 200 kPa. The peak pressure and peak temperature in the cycle were fixed at 50 bar (5,000 kPa) and 600°C, respectively, corresponding to a base case with a base value for the condenser's absolute pressure of 12.5 kPa (0.125 bar). The analysis was performed using the thermodynamics software package Cantera as an extension of the Python programming language. The results suggest that over the range of condenser pressures examined, a logarithmic function can be deployed to describe the dependence of input heat, the net output work, and cycle efficiency on the absolute pressure of the condenser. Each of these three performance metrics decreases as the absolute pressure of the condenser increases. However, a power function is a better choice to describe how the steam dryness (steam quality) at the end of the turbine section increases as the absolute pressure of the condenser rises.

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Section: Methodsmentioning

confidence: 99%

Condenser Pressure Influence on Ideal Steam Rankine Power Vapor Cycle using the Python Extension Package Cantera for Thermodynamics

Marzouk

2024

Eng. Technol. Appl. Sci. Res.

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“…For analyzing efficiency, energy and exergy analyses, as well as exhaust gas flow conditions in coal-fired boilers, the indirect method and calculation of boiler losses are commonly used [10]. The indirect method is generally considered more effective and accurate than the direct method, and the largest heat losses are often associated with dry flue gas and moisture content in the fuel [11]. In this research, the indirect method, or the calculation of heat losses in the boiler is employed.…”

Section: Boiler Efficiency Methodsmentioning

confidence: 99%

“…= ash collected × burned fuel/ GCV fly ash GCV flue gas 100 (11) The heat loss due to unburned carbon in bottom ash is:…”

Section: Boiler Efficiency Methodsmentioning

confidence: 99%

Optimization of Atmospheric Fluidized Bed Combustion Boiler by Computational Fluid Dynamics

Ramadhan,

Gunawan

2023

E3S Web Conf.

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Viscose rayon is a natural fabric from regenerated cellulose derived from wood pulp, bamboo, or cotton linters. The viscose rayon industry relies on electricity to generate steam for textile production. This study aims to optimize the 45-ton-per-hour Atmospheric Fluidized Bed Combustion (AFBC) boiler. Its efficiency is 78.16%, lower than the industry benchmark of 85.78%. Boiler efficiency decreases as the flue gas temperature increases, reaching 220 degrees Celsius, indicating suboptimal coal fuel utilization for water heating. The study explores two controllable variables: coal calorific value and combustion air mass flow rate for optimum efficiency. ANSYS Fluent 2021, a Computational Fluid Dynamics (CFD) software, is used for analysis. Boiler efficiency is calculated using the indirect method following ASME PTC 4.0. The research shows that adjusting the combustion air mass flow rate and coal calorific value increases efficiency to 81.04%.

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Heat Loss in Industry: Boiler Performance Analysis

Cited by 2 publications

References 9 publications

Condenser Pressure Influence on Ideal Steam Rankine Power Vapor Cycle using the Python Extension Package Cantera for Thermodynamics

Condenser Pressure Influence on Ideal Steam Rankine Power Vapor Cycle using the Python Extension Package Cantera for Thermodynamics

Optimization of Atmospheric Fluidized Bed Combustion Boiler by Computational Fluid Dynamics

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