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Journal articles on the topic 'Hot air dryer'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Adabi, Esmaeili, Ali Motevali, Ali Nikbakht, and Hadi Khoshtaghaza. "Investigation of some pretreatments on energy and specific energy consumption drying of black mulberry." Chemical Industry and Chemical Engineering Quarterly 19, no. 1 (2013): 89–105. http://dx.doi.org/10.2298/ciceq111120045a.

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Massive consumption of energy in drying industry makes it a matter of challenge regarding economical aspects and limited recourses. Several methods for drying including hot air convection, vacuum, infrared and hot air convection-infrared technologies were applied in order to estimate the consumed energy during the drying of mulberry fruit. Moreover, microwave heating, chemical (ethyl oleate and potassium), mechanical (ultrasonic) and blanching (hot water) pretreatments were compared. According to the Results, maximum energy consumption was recorded when no pretreatment was performed. Microwave

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Desai, N. N., V. M. Modi, and V V Modi. "Dehydration of Date Palm (Phoenix dactylifera) Halves Using Different Drying Methods." Annals of Arid Zone 63, no. 2 (2024): 35–41. http://dx.doi.org/10.56093/aaz.v63i2.138791.

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The date fruits are a food of high energy value. It is very popular both nationally and internationally. Date fruits are perishable fruit crops grown in the coastal region of Kutchh of Gujarat state A study was carried out to determine the drying characteristics of date halves using a hot air dryer, solar dryer, and open sun drying methods. The date halves were dried under a hot air flow dryer at temperature levels of 50, 60, and 70°C under pre-treatment of blanching. The rate of moisture of the blanched sample should only 7.5% reduction at 54 h drying period. In the case of date halves drying

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Wang, Y. J., Y. F. Li, S. Pan, et al. "Rice drying quality using gas-catalytic infrared equipment: an experimental study." IOP Conference Series: Earth and Environmental Science 1500, no. 1 (2025): 012047. https://doi.org/10.1088/1755-1315/1500/1/012047.

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Abstract Globally, up to 10% of the total annual rice production is wasted due to excessively high moisture content during storage. Mechanized drying of rice is an important measure to reduce this loss. However, traditional hot-air rice dryers have issues such as low drying rates and high energy consumption. This paper introduces a new type of gas-catalytic infrared rice dryer, including its working principle and components. By using drying rate and fissuring rate as evaluation indicators before and after drying, the performance of this dryer is compared with that of traditional hot-air dryers

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Ali, Muhammad Azhar, and Tabish Hassan. "VALUE ADDITION OF GRAPES USING HOT AIR DRYERS." Engineering Heritage Journal 6, no. 1 (2022): 19–24. http://dx.doi.org/10.26480/gwk.01.2022.19.24.

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This study includes to study the effect of air temperature on raisins and to study the economic analysis of proposed methodology and compare the output with conventional techniques. It can be seen from the results that both the hot air dryers e.g. solar and electric dryer produce raisins in a much lower time in comparison to the traditional method of raisin dryer. Solar dryer takes 96 hours to produce raisin while electric dryer takes 15 hours for raisin production. This time frame for raisin production is much lower than that of 336 hours or 2 weeks, an average time for raisin production usin

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Gautam, Jitendra Kumar, and Pankaj Verma. "Review Paper on Diffierent Types of Solar Dryer." International Journal for Research in Applied Science and Engineering Technology 12, no. 7 (2024): 250–57. http://dx.doi.org/10.22214/ijraset.2024.63559.

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Abstract: One of the most appealing and economical uses of solar energy is drying agricultural goods. With differing degrees of technical performance, a multitude of solar dryer types have been devised and developed across the globe. In general, solar dryers come in four different varieties: (1) direct solar dryers, (2) indirect solar dryers, (3) mixed-mode dryers, and (4) hybrid solar dryers. The product being dried, as well as technical and financial concerns, are reviewed in this paper together with other solar dryer kinds. Technically speaking, integrated storage, high efficiency, compact

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Yohana, Eflita, Ismoyo Haryanto, Muhamad Adrian Dwiputra, and Yusuf Luqmanul H. "Vibration Analysis Vibro Fluidized Bed Dryer Using Finite Element Method." International Research Journal of Innovations in Engineering and Technology 08, no. 05 (2024): 227–31. http://dx.doi.org/10.47001/irjiet/2024.805033.

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Nowadays, the vibrating fluidized bed dryer is one of the most popular kinds of tea drying equipment available. The water content is lowered to 2.8–3.8 by applying the heat generated by the heater, which stops the enzyme-based oxidation process. The objective is to investigate how vibration affects a vibro-fluidized bed dryer's inherent frequency, structural integrity, and tea mass loading on the device. Tea powder is sprayed onto beds using vibro-fluidized bed dryers, which use an eccentric motor to create vibrations. Hot air flows from tiny holes in the bed into the tea powder that is circul

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Soehartanto, Totok, I. Putu Eka Widya Pratama, and Alvin Davisa Putra. "The design of fuel dryer in palm oil processing industries by utilizing the heat product of boiler based on computational fluid dynamic." IOP Conference Series: Earth and Environmental Science 1034, no. 1 (2022): 012008. http://dx.doi.org/10.1088/1755-1315/1034/1/012008.

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Abstract Incomplete combustion process from boiler in palm oil processing industry usually discharged into the air in the form of black smoke due to the high water contain in the fuel of the boiler which will pollute the air. With this problem the research was conducted of designing a simulation of fuel dryer to dry out the boiler fuel before it used by utilizing the exhaust heat of the combustion system in the boiler. The simulation design of the fuel dryer is based on computational fluid dynamic (CFD) with parameters control are air velocity and heat temperature of fuel dryer. The results ob

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Wang, Fengzhe. "A Fast Drying Machine Based On Semiconductor Heat Pump." E3S Web of Conferences 252 (2021): 02024. http://dx.doi.org/10.1051/e3sconf/202125202024.

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The new latent heat recovery type semiconductor heat pump ground fast dryer is a kind of integrated semiconductor refrigeration module on the traditional dryer. We simulated the process of the wind being heated by the hot end of the semiconductor refrigeration module under different working conditions through ANSYS software, so as to obtain the best solution for the semiconductor refrigeration module. Using the principles of drying and air condensation, we calculated the influence of the drying rate, drying time, and the condensation effect of the cold end when the air at different hot end inl

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9

Fitsyk, V. "DEVELOPMENT OF A NEW GENERATION OF TORNUM REX MINING GRAIN DRYERS AND THEIR DESIGN METHODS." Grain Products and Mixed Fodder’s 24, no. 4 (2024): 11–17. https://doi.org/10.15673/gpmf.v24i4.3004.

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The materials of the article analyze the problems and methods of drying grain in modern grain dryers. In recent years, the mixed-flow dryer has been the subject of many studies on drying efficiency, dryer control and productivity improvement. However, there is still a significant need for optimization in terms of energy efficiency and drying uniformity. In order to analyze the specific energy consumption and drying uniformity of the technological process, various thermodynamic conditions of the process were investigated, design solutions were investigated using numerical and experimental metho

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Huesca-Espitia, Luz del Carmen, Jaber Aslanzadeh, Richard Feinn, Gabrielle Joseph, Thomas S. Murray, and Peter Setlow. "Deposition of Bacteria and Bacterial Spores by Bathroom Hot-Air Hand Dryers." Applied and Environmental Microbiology 84, no. 8 (2018): e00044-18. http://dx.doi.org/10.1128/aem.00044-18.

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ABSTRACTHot-air hand dryers in multiple men's and women's bathrooms in three basic science research areas in an academic health center were screened for their deposition on plates of (i) total bacteria, some of which were identified, and (ii) a kanamycin-resistantBacillus subtilisstrain, PS533, spores of which are produced in large amounts in one basic science research laboratory. Plates exposed to hand dryer air for 30 s averaged 18 to 60 colonies/plate; but interior hand dryer nozzle surfaces had minimal bacterial levels, plates exposed to bathroom air for 2 min with hand dryers off averaged

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Hermanuadi, D., A. Brilliantina, and EKN Sari. "Design of Flash Dryer Cum-UV for Improving the Quality of Drying Cassava Chip." IOP Conference Series: Earth and Environmental Science 980, no. 1 (2022): 012003. http://dx.doi.org/10.1088/1755-1315/980/1/012003.

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Abstract Drying is a scientific operation, which includes the transient transfer of heat and mass at some rate of process. The purpose of this study was to design and create a flash system dryer, which is equipped with UV. The selection of flash system dryers is based on conditions where some materials to be dried are sensitive to hot air contact due to prolonged drying. As a heat source, this dryer uses a heater to heat the air. In order to spread the heat evenly in the dryer room, the blower is installed on the heater. The intake of air blower is 60 m/s, while the air temperature on the air

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Rospawan, Ali, Joni Welman Simatupang, and Irwan Purnama. "Development of Hot Air Dryer Conveyor for Automotive Tampo Printing Parts." Green Intelligent Systems and Applications 2, no. 1 (2022): 34–41. http://dx.doi.org/10.53623/gisa.v2i1.69.

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This paper presents the development of a hot air dryer conveyor for the automotive industry in the tampo printing part process. The research started by designing and creating the actual device that is ready to use and be implemented in the industry. The method provides the detail of the drying chamber, hot air dryer, and its mathematical model. The chosen hot air dryer is Suiden SHD-9F II and is operated on the factory default setting of auto-tuning mode. The performance evaluation studies the indicator performance of hot air dryer for the chosen size of drying chamber, the robustness of the s

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Aryadillah, Ahmad, and Aqli Mursadin. "ANALISIS PERBANDINGAN KINERJA SISTEM DISTRIBUSI PANAS PADA VARIASI RUANG MESIN PENGERING IKAN." Scientific Journal of Mechanical Engineering Kinematika 1, no. 1 (2016): 27–36. http://dx.doi.org/10.20527/sjmekinematika.v1i1.25.

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The purpose of this research is to know the heat distribution system in three types of fish dryers. The variations of the dryer room were fire-tube type, fire-tube type with bevel, and air-tube type. This study was conducted by simulating airflow and heat transfer that occurred in each dryer room variation by using CFD software. In the simulation, the dryer was heated using an electric heating element with a temperature of 80 °C and the results display hot air flow moving in the drying chamber. In the fire-tube type dryer room obtained average temperature of 46.74OC. In the fire-tube type drye

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14

Sutanto, Rudy, and Hendry Sakke Tira. "Analysis of Corn Drying Rack Position on Tray Type Dryer on Drying Rate." Jurnal Pijar Mipa 19, no. 5 (2024): 888–92. http://dx.doi.org/10.29303/jpm.v19i5.7027.

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This research aims to determine the drying characteristics of corn kernels using a tray-type dryer, including the moisture content of the corn kernels over time, the mass of the tested corn kernels over time and the drying rate over time. This research uses the experimental method. The drying process uses an incoming drying hot air temperature of 65ºC with an incoming hot drying air speed of 2 m/s, repeated three times until a water content of 14 ± 0.5% is reached. The dryer in this study used four stacking shelves counting from the bottom, which were filled with 500 grams per shelf. This rese

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15

Chang, Cheng-Hou, Chao-Yin Tsai, Pauline Ong, and Suming Chen. "A Study on Performance Evaluation of Tea Dryers." Applied Engineering in Agriculture 37, no. 2 (2021): 299–307. http://dx.doi.org/10.13031/aea.14240.

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HighlightsThis study used data normalization, radar chart and weighting difference analysis to compare the performances of four types of tea dryers in terms of drying efficiency, energy, costs, qualities, and total efficiency.The electro-thermal dryers were more energy-saving and environment friendly.The vacuum drum dryer has the potential for useful application in high quality tea drying. Abstract. Tea dryers are essential equipment for tea manufacturers whereby, the hot-air tea drying machines, such as multiple-layer conveyor dryer (MLD), electric hot-air dryer (HAD), and low-humidity dryer

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Piddubny, Volodymyr, Nina Osokina, and Hennadii Tkachenko. "ASSESSMENT OF THE PHYSICAL AND MECHANICAL PROPERTIES OF THE PRODUCTS OF CRUSHING SOYBEAN FOR OIL PRODUCTION." Vibrations in engineering and technology, no. 2(113) (August 30, 2024): 110–18. https://doi.org/10.37128/2306-8744-2024-2-12.

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Obtaining oil by pressing from soybean involves drying it to a moisture content of 8.0–8.5%. Energy costs can be 3-4 times higher than the costs of evaporation from the free surface of water. Damage to the soybean coat reduces drying time by 1.5 times. The hydraulic resistance to hot air of the grain layer of crushed soybean is greater than that of the whole grain. Reuse of hot air in the grain dryer (recuperation) doubles its path in the soybean layer. The purpose of the article is to determine the hydraulic resistance to hot air in a grain dryer with crushed soybean. It is necessary to calcu

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17

Liu, Chun Shan, Wen Fu Wu, Jia Yao, Ya Qin Li, and Chuang Liu. "Test Research and Parameter Analysis of Grain Drying Model." Applied Mechanics and Materials 66-68 (July 2011): 573–76. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.573.

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The purpose of this study is to explore the effecting principle in the drying process. The factors such as hot air temperature, hot air flow, drying time on the grain moisture content have been all investigated. Using UD to establish the optimization mathematics model which making the grain dryer moisture content as the goal of the design, making the factors of hot air flow, drying time, air temperature as parameters, with the help of UD to analysis the effecting principle of the drying process parameters on the grain moisture content, some references have been provided to the tower dryer.

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18

Dorra, Sfayhi Terras, Dridi Farah, Hadjyahia Nesrine, Allouch Wafa, and Zarroug Youkabed. "Drying Behavior of Bulgur and Its Effect on Phytochemical Content." Foods 11, no. 7 (2022): 1062. http://dx.doi.org/10.3390/foods11071062.

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The objective of this study was to determine the influence of two types of dryers (hot air oven and vacuum dryer) and the yellow berry percentage (1.75%, 36.25%, 43.25%) on the drying process and phytochemical content of bulgur. Results showed that the Midilli model successfully described the moisture diffusion during drying at 60 °C in all bulgur samples, where an increase in yellow berry percentage generated an increase in moisture content. Effective diffusion coefficient (Deff) increased significantly (p ≤ 0.05) from 7.05 × 10−11 to 7.82 × 10−11 (m2.s−1) and from 7.73 × 10−11 to 7.82 × 10−1

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19

Nwakuba, Nnaemeka R. "Optimisation of energy consumption of a solar-electric dryer during hot air drying of tomato slices." Journal of Agricultural Engineering 50, no. 3 (2019): 150–58. http://dx.doi.org/10.4081/jae.2019.876.

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High-energy demand of convective crop dryers has prompted study on optimisation of dryer energy consumption for optimal and cost effective drying operation. This paper presents response surface optimisation of energy consumption of a solar-electric dryer during hot air drying of tomato slices. Drying experiments were conducted with 1 kg batch of tomato samples using a 33 central composite design of Design Expert 7.0 Statistical Package. Three levels of air velocity (1.0, 1.5 and 2.0 ms–1), slice thickness (10, 15 and 20 mm) and air temperature (50, 60 and 70°C) were used to investigate their e

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Silvério, Beatriz Cristina, A. C. C. Soares, E. B. Arruda, Claudio Roberto Duarte, and Marcos A. S. Barrozo. "Analysis of the Influence of Mini-Pipes Diameter in the Performance of a Non-Conventional Rotary Dryer." Materials Science Forum 727-728 (August 2012): 1890–95. http://dx.doi.org/10.4028/www.scientific.net/msf.727-728.1890.

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Conventional rotary dryers are used in many industrial sectors. The present work analyzes the drying of granulated fertilizers in a non-conventional dryer. The major characteristic of this new dryer is the presence of an aerated system consisting of a central pipe from which a series of mini-pipes conduct the hot air directly to the particle bed that is flowing at the bottom. This work has tested several diameters of mini pipes and the better experimental results were obtained with mini pipes of 9 mm.

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Misha, Suhaimi, Sohif Mat, Mohd Hafidz Ruslan, Kamaruzzaman Sopian, and Elias Salleh. "The CFD Simulation of Tray Dryer Design for Kenaf Core Drying." Applied Mechanics and Materials 393 (September 2013): 717–22. http://dx.doi.org/10.4028/www.scientific.net/amm.393.717.

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Tray dryer is the most extensively use for kenaf core drying because of its simple and economic design. The product is spread out on trays at an acceptable thickness so that the product can be dried uniformly. Most tray dryers use hot air stream where water is vaporized from the product and removed by air stream. In a tray dryer, more products can be loaded as the trays are arranged at different levels. The drawback of this dryer is non-uniformity in the desired moisture content of end product. The key to the successful operation of the tray dryer is uniform airflow distribution over the trays

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Adegbola, A., L. A. S. Agbetoye, O. S. Lawson, and S. A. Olaleye. "Performance Evaluation of a Hot-Air Groundnut Cabinet Dryer." International Journal of Research and Scientific Innovation XI, no. I (2024): 322–35. http://dx.doi.org/10.51244/ijrsi.2024.1101025.

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Groundnut, also known as peanut, is an important source of food and oil, with the seeds being high in protein, fibre, and healthy unsaturated fats which are consumed in large quantities in most parts of the sub-Saharan Africa and the world at large. The post-harvest processing of peanut, most-especially drying that involves dehydrating the crop to safe moisture content for home and commercial purposes still need more attention as local drying prevailed in the country. An existing hot-air cabinet dryer was improved and evaluated for the drying of peanuts under the humid rainforest climate of Ak

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Juli, Mrihardjono, Ariwibowo Didik, and Sutrisno. "Development and Performance Test of Vertical Bed Dryer for Drying of Corn Kernel." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 06, no. 06 (2023): 2410–15. https://doi.org/10.5281/zenodo.8046860.

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 This research aims to develop the design of vertical bed dryer which could dry corn kernel. The dryer characteristics has been investigated. The dryer design consists of three chambers which each in order to facilitate of inlet hot air dryer stream, corn kernel chamber, and outlet wet air. Each chamber was separated by perforated plate steel. Air flew by a blower and heated by 2 x 350 heaters. The research parameter was: (a) drying air temperature, varied 50-60 oC, (b) air velocity varied of 2-4 m/s, blower power (W), and moisture content, mc (%). The resuts shows that moisture content d

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Irwansyah, Irwansyah, Leopold Oscar Nelwan, and Dyah Wulandani. "Desain dan Uji Kinerja Alat pengering Hybrid Dengan Efek Cerobong Tipe Tumpukan untuk Pengeringan Biji Kopi Arabika." Jurnal Keteknikan Pertanian 7, no. 3 (2020): 163–70. http://dx.doi.org/10.19028/jtep.07.3.163-170.

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Artificial drying method for arabica coffee beans requires a large consumption of electrical energy. Electricity is needed to rotate the blower which functions to circulate hot air to the dryer so that it can evaporate some of the water contained in the coffee beans. Most of the arabica coffee producing areas in Aceh province have not been reached by the electricity network so the use of artificial dryers cannot be used. To overcome this obstacle, the air flow circulation system with chimney effect can be used to drain dry air. The aim of this research is to design a chimney effect hybrid drye

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Chaloeichitratham, Natthacha, Pornkanya Mawilai, Thadchapong Pongsuttiyakorn, and Pimpen Pornchalermpong. "Effect of drying methods on properties of green curry powder." MATEC Web of Conferences 192 (2018): 03023. http://dx.doi.org/10.1051/matecconf/201819203023.

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In this study, the effects of two drying methods: hot-air and freeze drying for Thai green curry paste in a terms of drying time and qualities have been investigated. The hot-air drying was carried out in tray dryer at temperature of 50, 60 and 70 °C. The freeze drying was carried out in freeze dryer at freezing temperature of -20°C, primary drying temperature of -10°C and secondary drying temperature of 50°C. Moisture content, water activity, colour, bulk density, and total phenolic content (TPC) were determined in samples. Freeze dried sample had significantly (p<0.05) lower moisture cont

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Cakrawiguna, Rizki, Noviyanti Nughraha, and Nuha Desi Anggraeni. "Design and Manufacture Indirect Method Grain Bed Dryer with 10 Kg Capacity Fueled by Wasted Oil." METAL: Jurnal Sistem Mekanik dan Termal 6, no. 2 (2022): 89–94. https://doi.org/10.25077/metal.6.2.89-94.2022.

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Artificial grain dryers use additional heat to dry the grain, the energy source for this machine is fuel, gas, husks, and firewood. The dryer used in this study uses wasted oil with the indirect method. This grain dryer with wasted oil helps us make the environment stay clean. The purpose of this research is to design and manufacture a bed dryer type grain dryer with a capacity of 10 kg fueled by wasted oil, with the target of drying grain to a moisture content of 13-14%, dry grain is odorless, the drying cost is relatively cheap because it uses used lubricating oil. The machine is made by the

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Gyanwali, K., P. Aryal, and B. Adhikari. "A Study on Electric Dryer for Cash Crops Drying as an End-Use Promotion of Micro Hydro Power in Nepal & Its Comparative Analysis with Biomass Based Drying System." Kathmandu University Journal of Science, Engineering and Technology 10, no. 1 (2014): 39–54. http://dx.doi.org/10.3126/kuset.v10i1.63686.

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Electric dryers serve farmers as an efficient, environment friendly, and proper technology with high performance for quality product drying than other types of conventional dryers. Development and implementation of electric dryers have become a must to bring socio-economic and technological change in rural Nepal. For performance testing and comparison with biomass-based drying systems, an electric dryer was designed and locally fabricated, taking special care in insulation of the system and transported to Baletaksar-5, Gulmi. Performance testing was followed by individual parts testing with th

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Ilechie, C. O., G. F. Aibangbee, S. R. Ogblechi, and B. O. Abikoye. "Development and Performance Evaluation of a Multipurpose Dryer." Advanced Materials Research 367 (October 2011): 745–52. http://dx.doi.org/10.4028/www.scientific.net/amr.367.745.

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In this work an electrically operated thermostatic multipurpose dryer is developed and evaluated. It measures 2,300mm long, 600mm wide and 1,100mm high and consists of 50mm x 50mm mild steel angle iron and aluminium sheet wrapped all over it. The interior of the dryer is painted black to ensure maximum heat retention within the system for faster drying. The multipurpose dryer is constructed with the incorporation of vents to enable uniform air circulation within the system. This is to facilitate uniform drying of specimens. The development of the dryer is to help minimize losses of agricultura

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Akbar, Suseno Ali, Sandi Asmara, M. Zen Kadir, and Siti Suharyatun. "Uji Kinerja Alat Pengering Tipe Batch Dryer untuk Pengeringan Kakao (Theobroma cacao L.) dengan Sistem Penghembus Udara Panas." Jurnal Agricultural Biosystem Engineering 3, no. 2 (2024): 297. http://dx.doi.org/10.23960/jabe.v3i2.9545.

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Cocoa is a superior export commodity for Indonesia. Lampung is one of the largest cocoa producing regions in Indonesia. In processing cocoa beans, drying is the most important factor for quality. The causes of the low quality of cocoa beans include unfermented cocoa beans before drying and the conventional drying process. Drying of cocoa can be done using a bacth type dryer with a hot air blower system with a large enough capacity that has been built on offer. This study aims to examine the performance of batch type cocoa dryers with hot air blowing systems. The method used in this study is an

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Nasution, Abdul Haris. "The Analysis of Three-Tubed Variations of Hot Air as a Coffee Bean Dryer." International Journal of Research and Review 10, no. 8 (2023): 757–61. http://dx.doi.org/10.52403/ijrr.20230899.

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One of methods to process coffee beans is carried out by drying and during this period, drying by mechanical and/or artificial devices is meant to overcome the deficiencies of drying in the sun. In this study, coffee beans were dried in the oven-style dryer, utilizing hot air from a furnace. The purpose of this study is to investigate how good the number of holes is to dry coffee beans using hot air. The hole variations were about 300, 350, 400 holes. This study shows that the drying time was two hours for drying coffee beans using hot air; the water content of coffee beans reduced to 37.67%,

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Geng, Wen Guang, Ling Gao, Xiao Xu Ma, Xiu Li Ma, Zong Yi Yu, and Xuan You Li. "Honeysuckle Drying by Using Hybrid ConcentratorPhotovoltaic-Thermal (PV/T) Dryer: An Experimental Study." Applied Mechanics and Materials 291-294 (February 2013): 132–36. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.132.

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This paper presents experimental performance of a concentrator photovoltaic thermal (CPV/T) dryer for drying of honeysuckle flowers. The dryer consists of a perspex box structure. Heat for drying is provided by the excess heat of concentrator PV module and one fan powered by this concentrator PV ventilate the dryer. To investigate the experimental performances of the solar dryer for drying of honeysuckle flowers, 2 full scale experimental runs were conducted. Of which one experimental runs were conducted by hot air and the drying air temperature varied from 65°C to 80°C, the drying time was 5

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Aduewa, Taiwo, and Ajiboye Oyerinde. "Analysis of Hot-Air Supplemented Solar Drying Using Computational Fluid Dynamics Technique." Journal of Applied Science, Engineering, Technology, and Education 4, no. 1 (2022): 16–26. http://dx.doi.org/10.35877/454ri.asci615.

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Energy is a crucial input in the process of economic, social and industrial development of any nation. Fluctuating solar insolation and late sunrise hour has led to poor quality dried biological material production. A simulation of hot-air supplemented solar dryer (HSSD) designed for such purpose is presented for temperature distribution based on direct solar irradiation of 1423 W/m2 of Akure, Nigeria (5.304º Latitude 7.258º Longitude). The environmental conditions in the hybrid dryer were measured during a day of operation. The model of the dryer was created and a numerical model was establis

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Tesfaye, Assefa, and Nigus Gabbiye Habtu. "Fabrication and Performance Evaluation of Solar Tunnel Dryer for Ginger Drying." International Journal of Photoenergy 2022 (October 19, 2022): 1–13. http://dx.doi.org/10.1155/2022/6435080.

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A series of tests were conducted to investigate the performance of a solar tunnel dryer for drying ginger. To supply hot air to the dryer, two axial flow fans with a power rating of 28 W, a supply voltage of 220 V, and a 50 W photovoltaics (PV) module were employed. By dividing the 8.5-meter-long solar tunnel dryer into four equal portions every thirty minutes, solar radiation, dry air temperature, ambient temperature, relative humidity, and air velocity were measured at five solar tunnel dryer stations. The hot air temperature at the collector output grew from 34°C to 65.5°C for an 8-hour ope

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Wannapakhe, Sakultala, and Khridsadakhon Booddachan. "The Mechanical Properties of Oil Palm by Using Semi-Damp Dryer." E3S Web of Conferences 302 (2021): 01013. http://dx.doi.org/10.1051/e3sconf/202130201013.

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Hot air drying of palm fruit is a simple method but results in low grade palm oil. The steaming of palm fruit results in high grade palm oil but it requires a wastewater treatment process. Both methods have both advantages and disadvantages, therefore if they were combined, it can result in the better grades of oil, which should be encouraged for farmers in Thailand to apply. This research aimed to determine mechanical characteristics of semi-damp dryer for oil palm. The results of a compression and relative humidity tests were used as the criteria for the tests. The oil palm semi-damp dryer w

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Cao, Le, and A. Ni Wang. "Analysis on Gravure Hot-Air Drying Parameters Based on Matlab." Applied Mechanics and Materials 416-417 (September 2013): 1363–67. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.1363.

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This paper illustrated the importance of determining reasonable gravure hot-air drying parameters. On the basis of residual solvent detection via gas chromatographic method, the effect of hot-air velocity, hot-air temperature and primal solvent content on residual solvent was analyzed. According to polynomial regression analysis, curve fitting was conducted, and mathematical model of various parameters, average drying velocity and unit energy consumption was constructed to optimize printing dryer and guide practical production.

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Vyas, D. K., N. Seth, and J. J. Chavda. "Performance of biomass combustor based drying system for ginger drying." Agricultural Engineering Today 45, no. 01 (2021): 19–25. http://dx.doi.org/10.52151/aet2021451.1530.

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A biomass combustor based dryer was evaluated with different biomass for drying of ginger. Biomass combustor based dryer consists of fuel hopper, combustion chamber, heat exchanger, grate for proper combustion of the combustible gas, chimney, ambient air inlet, hot air outlet and drying chamber. The system was evaluated at five fuel consumption rate (1 to 5 kg.h–1) and five air flow rate (100, 150, 200, 300 and 400 m3.h–1) using maize cobs, sized wood and saw dust briquettes for ginger drying. The experimental performances show that the hot air temperature inside the dryer vary between 36 to 8

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Sookramoon, Krissadang. "Design of a Solar Tunnel Dryer Combined Heat with a Parabolic Trough for Paddy Drying." Applied Mechanics and Materials 851 (August 2016): 239–43. http://dx.doi.org/10.4028/www.scientific.net/amm.851.239.

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This paper presents the design, build and performance test of a solar tunnel dryer combined heat with a parabolic trough for paddy drying. A 2.27 m² parabolic trough stainless steel made with a single-axis solar tracking system produced hot water and delivered to the cross flow heat exchanger equipped with a solar tunnel dryer with the size of flat plate collector of 2.112 m2. The system received solar radiation and reflected sunlight to the receiver at the focal point of a parabolic trough. At this point, a copper heat pipe with the inside diameter of 25.4 mm for water heating is placed. A pa

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Tikhomirov, Dmitriy, Stanislav Trunov, Aleksey Kuzmichev, and Nicolay Lamonov. "The Principle of Building an Energy-Saving Drying Plant Using Thermoelectricity." Elektrotekhnologii i elektrooborudovanie v APK 1, no. 42 (2021): 16–22. http://dx.doi.org/10.22314/2658-4859-2021-68-1-16-22.

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Most drying plants of small capacity for vegetables and fruits are convective without recirculation of the drying agent. Such dryers have a high energy consumption and cannot be attributed to energy-saving installations. (Research purpose) The research purpose is in developing a functional and technological scheme of an energy-eﬃcient thermoelectric dryer that provides a reduction in energy costs during the drying process while maintaining high quality indicators of the finished product and increasing the drying eﬃciency. (Materials and methods) The methods of system analysis and synthesis of

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Manoj Kumar Gupta and V.K. Sehgal. "Drying Kinetics of Cauliflower in a Hot Air Dryer." Journal of Agricultural Engineering (India) 48, no. 3 (2024): 26–31. http://dx.doi.org/10.52151/jae2011483.1447.

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Cauliflower florets of 4 cm size were dried at three different drying air temperatures viz., 55, 60, and 65°C, with60 m.min-1 of drying air velocity. The drying data were fitted to different semi-theoretical and empirical modelsviz., Newton, Page, Henderson and Pabis, Logarithmic, two-term, two-term exponential, Verma et al., ModifiedHenderson, Midilli, and Wang and Singh models, based on the moisture ratios. The Midilli model was the bestfit over other models and satisfactorily described the thin-layer drying characteristics of cauliflower. Theeffective diffusivity varied from 12.37 X 10-9 to

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Al-Zadjali, Fatma Nasser Abdul Rahim, and Priy Brat Dwivedi. "SIMPLE DESIGNING AND FABRICATION OF HOT-AIR DRYER FOR INDUSTRIAL AND LABORATORY PURPOSES." International Journal of Students' Research in Technology & Management 4, no. 4 (2016): 64–68. http://dx.doi.org/10.18510/ijsrtm.2016.441.

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Purpose of the study: The primary purpose of this experiment is to design, fabricate, and test the efficiency of a low-cost hot-air dryer. This type of dryer will help remove the maximum percentage of the moisture from fruits, rice, etc., so that they can be stored for longer times with high nutritional contents. Methodology: Diameters, length of the column, and mesh size were calculated. The length and width of the pipe were taken as 35 cm*15 cm, respectively. For the purpose of fabrication, metal pipes were selected, welding equipment was used which joins by the fusion of the materials

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Srisittipokakun, Nattapon, and Keerati Kirdsiri. "Experimental Performance of a Mix Mode Solar Dryer for Drying Centella Asiatica." Advanced Materials Research 770 (September 2013): 80–83. http://dx.doi.org/10.4028/www.scientific.net/amr.770.80.

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This paper describes a mixed mode natural convection of solar dryer. The dryer was designed for small-scale commercial producers of agricultural products in non-electrified locations. The products to be dried are placed in multi layer on a wire mesh in the drying tunnel to receive energy from both hot air supplied from the collector and incident solar radiation on products. Temperatures in the drying chamber varied from 28.0° C to 55.0° C depend on the weather conditions. To investigate its performance, the dryer was used to dry 30 kg of Centella asiatica in December 2012. The dryer could be u

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Ibnu Irawan and Rifky Yusron. "Computational Fluid Dynamic Analysis in Spray Dryer Design By Distillation System Of Sea Water To Salt." Technium: Romanian Journal of Applied Sciences and Technology 17 (November 1, 2023): 401–6. http://dx.doi.org/10.47577/technium.v17i.10115.

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Spray Dryer is the most widely used industrial process for drying. Continuous production can be carried out in powder or powder form from liquid raw materials. The feed to some desiccant may be a liquid in which the solid will float as light particles, or it may be in the form of a solution. Some drying products are resistant to rough handling and very hot environments, but some require careful handling at low or moderate temperatures. Computational Fluid Dynamics (CFD) in a spray dryer system design uses an atomization system to convert seawater into salt. The process of analyzing several nee

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Yu, Hai-Ming, Chun-Cheng Zuo, and Qiu-Ju Xie. "Drying Characteristics and Model of Chinese Hawthorn Using Microwave Coupled with Hot Air." Mathematical Problems in Engineering 2015 (2015): 1–15. http://dx.doi.org/10.1155/2015/480752.

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Microwave coupled with hot air drying kinetics and characteristics of hawthorn slices at different drying hot air temperatures, hot air velocities, and microwave power densities was investigated. The research results showed that drying occurred mainly in the falling rate period and in the accelerating period. Twelve mathematical models were selected to describe and compare the drying kinetics of hawthorn slices. By comparing three criterions including correlation coefficient, chi-square, and root mean square error, we determined that Weibull distribution model obtained the best fit and could b

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Metidji, Nadia, and Hichem Bendjebbas. "Hot red pepper drying with a solar greenhouse dryer." World Journal of Environmental Research 14, no. 2 (2024): 74–79. https://doi.org/10.18844/wjer.v14i2.9581.

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Pepper, a globally essential ingredient, holds significant demand in the international food industry due to its role as a vital source of vitamins, minerals, and energy in the human diet. Despite its importance, efficient and cost-effective methods for drying agricultural products like pepper remain a challenge. Addressing this gap, this study investigates the efficiency and profitability of utilizing a solar greenhouse for drying hot red peppers. A 300 kg capacity greenhouse dryer was designed and constructed at the Unit Solar Energy Equipment Development (UDES) in Bou Ismail, Algeria. Drying

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Koehuan, Verdy A., Margaretha Kewa Unarajan, Defmit B. N. Riwu, and Muhamad Jafri. "Studi eksperimen rumah pengering ultra-violet (solar dryer) sistem hibrid tungku biomassa melalui variasi kecepatan aliran udara panas." ARMATUR : Artikel Teknik Mesin & Manufaktur 4, no. 1 (2023): 37–46. http://dx.doi.org/10.24127/armatur.v4i1.3296.

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The ultra-violet dryer integrated with the biomass furnace is a drying method with a forced mechanism. In this study, an experimental study was carried out. The drying process of porang tubers uses a hybrid system ultra violet plastic dryer (UV solar dryer) through varying the speed of the inlet air to obtain efficient drying results and porang tuber products. The results showed that the final moisture content of porang tubers after drying per day for each variation of air speed obtained the lowest value of 10.50%bb with the highest drying rate of 0.3373 kg/hour from the assumption of an initi

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Debadatta Behera, Debashree, Shiv Sankar Das, R. C. Mohanty, A. M. Mohanty, and Bijaya Bijeta Nayak. "Experimental Investigation on Hybrid Solar Dryer for drying mangoes." Journal of Physics: Conference Series 2818, no. 1 (2024): 012020. http://dx.doi.org/10.1088/1742-6596/2818/1/012020.

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Abstract Solar energy is considered free and clean energy. Solar drying technology is adopted as a sustainable way of food preservation. In this research, the drying of mango and preparation of bread toast has been investigated through experiments. A baffled-type solar dryer with a feature for hot air exhaust recirculation has been used for the experimental analysis. The collector efficiency, drying efficiency, and drying rate have been calculated by creating turbulence and exhaust hot air recirculation with and without exhaust hot air circulation. Performance indicators such as drying rate, c

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Kumar M, Ashok, Kumaresan G, Sivagaminathan M, Siva Subramanian R, and Gururaj C. "Experimental Performance Analysis Of Free And Forced Fully Developed Air Flow Green House Solar Dryer Using Curry Leaves." E3S Web of Conferences 399 (2023): 02008. http://dx.doi.org/10.1051/e3sconf/202339902008.

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The world is beginning to move away from its consumption of fossil fuels. Various technologies are being developed to make use of renewable energy sources such as wind, solar, and tidal, etc. Solar energy is the best choice among these sources because of it is readily available, abundant, and capable of producing both electric energy and space heating. Solar energy can be used directly or indirectly to dry agricultural and non-agricultural products to preserve them for long a period without formation of fungi. Drying of herbal leaves is an important process in Siddha and Ayurvedic industries t

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Jiang, Qing, Ye Zhang, Shiyou Yan, and Liangyuan Xu. "Optimal Design of an Angular Box for a Mixed Flow Grain Dryer." Applied Engineering in Agriculture 37, no. 4 (2021): 555–62. http://dx.doi.org/10.13031/aea.14643.

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Highlights The drying effect in the drying layer is affected by the status of the flow field. The angular box of the drying oven is optimized to improve the drying effect. The structure of the variable-section angular box significantly reduced unevenness and improved the drying effect. Abstract . Dryers are subject to problems as they are unable to fully and uniformly dry grain. Considering the mixed-flow drying process and improving the drying uniformity, this study conducted a numerical simulation of the hot air temperature field, velocity field, and pressure field with ordinary equal cross-

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Lal, Shiv, S N Saxena, G Lal, N Chaudhary, S S Meena, and M D Meena. "Assessment of different drying methods on sensory, color and quality attributes of fennel (Foeniculmn vulgare Mill) seeds harvested for chewing purpose." International Journal of Seed Spices 12, no. 2 (2024): 16–22. http://dx.doi.org/10.56093/ijss.v92i1.3.

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The present investigation was carried out at an experimental farm and post-harvest laboratory of ICAR-NRCSS, Ajmer during 2019-2021. This study aimed to assess the influence of different drying methods on fennel seeds harvested for chewing purposes. Fennel umbels were harvested at 143 days after sowing and 35 days after anthesis and dried under different drying treatments. T1-sun drying, T2-shed drying, T3-hot air oven drying (40oC), T4-hot air oven drying (50oC), T5-shed net (75% shed) drying (on floor), T6-low cost poly solar dryer and T7-drying in shed net (75% shed) with hanging umbels. Th

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Luampon, Ratinun, Sungwarn Bunchan, and Bundit Krittacom. "Specific Energy Consumption Improvement with Applying Stainless Wire Mesh Porous Material for a Hot Air Dryer." Key Engineering Materials 801 (May 2019): 345–50. http://dx.doi.org/10.4028/www.scientific.net/kem.801.345.

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This research was proposed to applying stainless wire mesh porous material for specific energy consumption improvement of a hot air dryer. In experimental consist two main parts, first part was a comparison of drying with and without hot air recirculation duct. Second part was a comparison of drying with and without stainless wire mesh porous material in drying chamber and hot air recirculation duct. Tilapia was drying product, stainless wire mesh in drying chamber was constant PPI=8 and 6 layers, stainless wire mesh in hot air recirculation duct was constant PPI=8 and varied layer at 6, 8 and

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