Distributor optimization: Analysis via design of experiment (DOE) on perforated plate distributor in fluidized bed

2020 ◽  
Author(s):  
Ku Mohammad Yazid Ku Ibrahim ◽  
M. A. M. Nawi ◽  
M. H. M. Hazwan ◽  
Nurul Fatin Najihah Abd Samat ◽  
Hazizul Hussein ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Design Of Experiment ◽  
Perforated Plate ◽  
Optimization Analysis

scholarly journals An Expedient Approach Towards Statistical Analysis of Formalin Business Policy Using Design of Experiment in a Petrocomplex Plant in India

2021 ◽  
Author(s):  
Anupam Mukherjee ◽  
Kunal Roy ◽  
Dipak Kumar Jana ◽  
Pijus Khatua
Keyword(s):  
Design Of Experiment ◽  
Acid Value ◽  
Solid Content ◽  
Optimization Analysis ◽  
Business Policy ◽  
New Approach ◽  
Industrial Sectors ◽  
Current State ◽  
Air Supply

Abstract Due to civilization, solvent-based paints are abundantly used for painting. Typical solvents include raw Methanol, Ethanol, cellosolve, Amylacetate, and Xylene. After painting, these huge raw solvents are emitted into the atmosphere, which continuously pollutes our environment. Global environment consciousness induced scientists to use aqua-based paints as it never emits harmful material in the atmosphere. Formaldehyde is one of the major components used to produce aqua-based thermosetting resin adhesives, used worldwide in the paints and panel industries. Perceiving the current state of formaldehyde production, development, applications in industrial sectors and demand in the trading industry, a new approach has been envisaged to revitalize the quality of formalin/formaldehyde in petrocomplex plants by the unique design of experiment model based on the collected data. The superiority of formalin depends on some primary constraints such as specific gravity, acid value and solid content of the product. The parameters which control the primary quality measuring constraints are methanol flow-rate, air-supply, and temperature during the reaction process. Based on these three inputs and three output parameters a statistical optimization analysis has been explored with the help of Box-Behnken design by exploring the robustness of soft computing tool (RSM) from an industrial engineering perspective with the overall desirability of 0.744.

Optimization analysis on spiral blade distributor via design of experiment (DOE) in fluidization system

2020 ◽  
Author(s):  
Muhammad Lutfi Abd Latif ◽  
M. A. M. Nawi ◽  
M. H. M. Hazwan ◽  
Mohd Razman Amin ◽  
Ku Mohammad Yazid Ku Ibrahim ◽  
...  
Keyword(s):  
Design Of Experiment ◽  
Optimization Analysis ◽  
Spiral Blade ◽  
Fluidization System

scholarly journals The Modification of the Perforated Plate in the Fluidized-Bed Combustor to Analyze Heat Convection Rate and Temperature

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Erdiwansyah ◽  
Mahidin ◽  
Husni Husin ◽  
Muhammad Faisal ◽  
Muhtadin ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Oil Palm ◽  
Combustion Temperature ◽  
Combustion Process ◽  
Palm Kernel ◽  
Perforated Plate ◽  
Heat Rate ◽  
Convection Heat ◽  
Wide Range ◽  
Fluidized Bed Combustor

Investigation of combustion temperature through experiments with a wide range of fuels, both solid and liquid, is continuously being conducted by scientists around the world, while the measurement of heat transfer rate can be analyzed when the combustion process occurs. Previous research has generally been conducted using liquefied gas, fossil fuels, and alcohol additives. Specifically, the research in this work investigated the convection heat rate and combustion temperature through the modification of the perforated plate. The experiment was conducted in the fluidized-bed combustor (FBC) fuel chamber using solid waste fuel of oil palm biomass. Measurements were performed at four different points using the HotTemp HT-306 Digital Thermometer. The results of the experiment showed that the convection heat rate in measurement one (M-I) reached 8.258 W/m2 for palm kernel shell (PKS) fuel. Meanwhile, in measurement two (M-II), the convection rate of 7.392 W/m2 was produced by oil palm midrib (OPM) fuel. The highest combustion temperature was recorded with OPM fuel (884°C) at M-I. However, the combustion temperature of the PKS combustion process is higher at 896°C but shows a less good trend than OPM. Overall, the measurement results of the three types of fuel used to modify the perforated plate applied in the FBC fuel chamber are excellent. It can be proven that the fuel is put into the combustion chamber with nothing left.

scholarly journals Computational Analysis of the Hydrodynamic Behavior for Different Air Distributor Designs of Fluidized Bed Gasifier

2021 ◽  
Vol 9 ◽  
Author(s):  
Naveed Raza ◽  
Muhammad Ahsan ◽  
Muhammad Taqi Mehran ◽  
Salman Raza Naqvi ◽  
Iftikhar Ahmad
Keyword(s):  
Pressure Drop ◽  
Fluidized Bed ◽  
Volume Fraction ◽  
Solid Volume Fraction ◽  
Perforated Plate ◽  
Column Height ◽  
Thermochemical Conversion ◽  
Open Area ◽  
Slotted Plate ◽  
Distributor Plate

Fluidized bed gasification has proven to be an appropriate technique for converting various biomass feedstocks into helpful energy. Air distributor plate design is one of the critical factors affecting the thermochemical conversion performance of fluidized bed gasifiers. The present study is proposed to investigate the mixing pattern and pressure drop across different configurations of air distributors using a two-fluid model (TFM) of finite volume method-based solver ANSYS FLUENT. The pressure drop across the bed and mixing pattern have been investigated through qualitative and quantitative analysis of CFD results using three diverse distributor plate designs: perforated plate, 90° slotted plate, and 45° swirling slotted plate. The pressure drop by employing the perforated distributor plate reveals the highest pressure drop due to the smallest open area ratio. However, the pressure drop in the case of 90° slotted plate is found to be 7% and 4% lesser than perforated and 45° slotted plate respectively due to a smaller velocity head developed through the wider open area of the straight slotted plates. The distributor design configuration having a 45° slotted plate exhibits considerable pressure drop compared to the 90° slotted plate due to the longer path length of the slot. Numerical pressure drop results across the bed with different types of distributor plates prove reasonable agreement with the experimental results available in the literature. Mixing behavior in perforated distributor plates exhibits lower portion solid volume fraction of around 0.58. However, it falls rapidly as go up the riser (7.7% of column height); 90° slotted plate shows bottom region solid volume fraction of around 0.5. In addition, it exhibits an even broader range of sand volume fraction and column height (13.46% of column height). Finally, the 45° distributor plate reveals the highest range of volume fraction through the riser height (17.3% of column height), indicating the better mixing characteristics of the fluidized zone.

scholarly journals Combustion Efficiency in a Fluidized-Bed Combustor with a Modified Perforated Plate for Air Distribution

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1489 ◽  
Author(s):  
Erdiwansyah ◽  
Mahidin ◽  
Husni Husin ◽  
Nasaruddin ◽  
Muhtadin ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Oil Palm ◽  
Combustion Temperature ◽  
Palm Kernel ◽  
Perforated Plate ◽  
Combustion Efficiency ◽  
Palm Kernel Shell ◽  
Empty Fruit Bunches ◽  
Maximum Combustion Temperature ◽  
Fluidized Bed Combustor

Combustion efficiency is one of the most important parameters especially in the fluidized-bed combustor. Investigations into the efficiency of combustion in fluidized-bed combustor fuels using solid biomass waste fuels in recent years are increasingly in demand by researchers around the world. Specifically, this study aims to calculate the combustion efficiency in the fluidized-bed combustor. Combustion efficiency is calculated based on combustion results from the modification of hollow plates in the fluidized-bed combustor. The modified hollow plate aims to control combustion so that the fuel incorporated can burn out and not saturate. The combustion experiments were tested using palm oil biomass solid waste fuels such as palm kernel shell, oil palm midrib, and empty fruit bunches. The results of the measurements showed that the maximum combustion temperature for the palm kernel shell fuel reached 863 °C for M1 and 887 °C for M2. The maximum combustion temperature measurements for M1 and M2 from the oil palm midrib fuel testing reached 898 °C and 858 °C, respectively, while the maximum combustion temperature for M1 and M2 from the empty fruit bunches fuel was 667 °C and M2 847 °C, respectively. The rate of combustion efficiency with the modification of the hole plate in the fluidized-bed combustor reached 96.2%. Thermal efficiency in fluidized-bed combustors for oil palm midrib was 72.62%, for PKS was 70.03%, and for empty fruit bunches was 52.43%. The highest heat transfer rates for the oil palm midrib fuel reached 7792.36 W/m2, palm kernel shell 7167.38 W/m2, and empty fruit bunches 5127.83 W/m2. Thus, the modification of the holed plate in the fluidized-bed combustor chamber showed better performance of the plate than without modification.

scholarly journals Particle movement on a perforated plate distributor of fluidized bed.

1980 ◽  
Vol 13 (2) ◽  
pp. 137-142 ◽  
Author(s):  
MASAYUKI HORIO ◽  
HIROSHI KIYOTA ◽  
IWAO MUCHI
Keyword(s):  
Fluidized Bed ◽  
Perforated Plate ◽  
Particle Movement
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