scholarly journals Drying characteristics of red chili in a swirling fluidized bed dryer: An experimental study

2018 ◽  
Vol 225 ◽  
pp. 06007
Author(s):  
Mohd Azlan Zulkarnain ◽  
Nor Farhanim Md Rashid ◽  
Ahmmad Shukrie Md Yudin
Keyword(s):  
Fluidized Bed ◽  
Conventional Method ◽  
Weight Reduction ◽  
Agricultural Product ◽  
Drying Process ◽  
Drying Time ◽  
Drying Characteristics ◽  
Fluidized Bed Dryer ◽  
Inclination Angles ◽  
Time Required

Red chili is an agricultural product that contains high moisture. In this study, the drying process of red chili was conducted by using two methods which are conventional method of drying under the sun and by using swirling fluidized bed dryer. A fluidized bed column of 108 mm in diameter with slotted distributor of 45° inclination angles was used in the experiment. Result of drying by using conventional method showed that for 1kg of sample the drying time was 13 days with 212g weight reduction and the color of the red chili changed from red to dark red. Meanwhile for swirling fluidized bed dryer the time required was 4 days, 200g weight reduction and the color of red chili maintained. Based on the results obtained, the drying of red chili by using swirling fluidized bed dryer is more efficient as compared to drying by using conventional method.

A Short Review on Fluidized Bed Dryer

2021 ◽  
pp. 104-105
Author(s):  
Akash H. Mali ◽  
Aditya R. Nikam ◽  
Azam Z. Shaikh.
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Fluidized Bed ◽  
Short Review ◽  
High Heat ◽  
Drying Process ◽  
Drying Time ◽  
Fluidized Bed Dryer ◽  
Advantages And Disadvantages ◽  
Fluidized Bed Drying

This artical also discusses about demostration of fluidized bed dryer with principle and application and other processing. This has lead to development of thechnology, process and equipments which not only reduce time but also increasing the output. A Fluidized bed dryer significantely reduce drying time, compared with vaccum dryer or tray dryer. In the pharmacutical industry, fluidized bed dryer are typically used for pellets drying, coating and granulation. Fluidized bed drying are very well known to yield high heat and mass transfer and hence adopted to many industrial drying process particularly pharmacy product. In this paper we show construction, working of the fluidized bed dryer. It work on the drying principle. It has several advantages and disadvantages.

Teknik Pengeringan Pati Sagu dengan Menggunakan Alat Pengering Cross Flow Fluidized Bed

Agrotek ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Abadi Jading ◽  
Paulus Payung ◽  
Eduard Tethool ◽  
Reniana Reniana
Keyword(s):  
Moisture Content ◽  
Fluidized Bed ◽  
Cross Flow ◽  
National Standard ◽  
Sago Starch ◽  
Drying Process ◽  
Drying Time ◽  
Fluidized Bed Dryer ◽  
Research Goal ◽  
C 50

<em>Sago starch drying done to reduce the moisture content in starch, so as to increase the shelf life and quality of dry starch. The drying process should be done while maintaining the physicochemical properties of sago starch. The research goal is to find the proper drying techniques to produce dried sago starch has a moisture content corresponding to the Indonesian National Standard (SNI). The experiments were performed three times with variations in temperature 40<sup>o</sup>C, 50<sup>o</sup>C, and 60<sup>o</sup>C. The moisture content of sago starch obtained at temperatures 40<sup>o</sup>C, 50<sup>o</sup>C, and 60<sup>o</sup>C, respectively 13.75% wb, 13.50% wb and 13.42% wb. Drying time at drying temperature of 40<sup>o</sup>C, 50<sup>o</sup>C, and 60<sup>o</sup>C respectively 5.5 hours, 4 hours, and 3 hours. A good drying sago starch using cross flow fluidized bed dryer at a temperature of 60�C ie, it reduces the moisture content more quickly in accordance with the SNI, and gelatinization does not occur during the drying process.</em>

scholarly journals STIRRED FLUIDIZED-BED DRYER OF REGENERATED ION EXCHANGER PARTICLES

2014 ◽  
Vol 54 (3) ◽  
pp. 231-239
Author(s):  
Michal Pěnička ◽  
Pavel Hoffman ◽  
Ivan Fořt
Keyword(s):  
Fluidized Bed ◽  
Spherical Shape ◽  
Ion Exchanger ◽  
Favourable Effect ◽  
Drying Process ◽  
Batch Mode ◽  
Drying Time ◽  
Fluidized Bed Dryer ◽  
Mechanical Stirring ◽  
Fluidized Bed Drying

<p class="TextCxSpFirst">This article describes intensification of the fluidized-bed drying process for regenerated spherical-shape ion exchanger particles in the batch mode, achieved by a mechanical stirrer in the fluidized bed layer of the dried particles. The effect of the mechanical stirring system on the drying process was examined.</p> <p class="TextCxSpLast">Calculations as well as results of comparison measurements provide evidence of a favourable effect of stirring on the total drying time as compared to the initial unstirred system. The regenerated ion exchanger particles pass to the fluid state in a shorter time and the ultimate total drying time is thus more than 60% shorter.</p>

scholarly journals Microwave assisted fluidized bed drying of celery

2018 ◽  
Author(s):  
Amanat Kaur ◽  
Yvan Gariépy ◽  
Valérie Orsat ◽  
Vijaya Raghavan
Keyword(s):  
Fluidized Bed ◽  
Drying Process ◽  
Drying Time ◽  
Fluidized Bed Dryer ◽  
Microwave Assisted ◽  
Air Temperatures ◽  
Quality Product ◽  
Fluidized Bed Drying ◽  
Power Densities ◽  
Kinetics Of

The drying kinetics of celery in a microwave assisted fluidized bed dryer was studied at different drying air temperatures (45°C, 55°C and 65°C) and at different initial microwave power densities (0W/g, 1W/g and 2W/g). Dried product quality, product mass, air temperature, air relative humidity, and electric power consumption were used to monitor the performance of the drying process. The results showed that the Midilli-Kucuk model was best in predicting the moisture ratio as a function of drying time. At any given temperature, the utilization of the microwave energy reduced by more than 50% the drying time. Keywords: drying; celery; MWFBD

scholarly journals SCALE UP DAN UJI TEKNIS ALAT PENGERING TIPE FLUIDIZED BED [Scale Up and Technical Test of Fluidized Bed Dryer]

2017 ◽  
Vol 5 (2) ◽  
pp. 452-461
Author(s):  
Suryadi ◽  
Sukmawaty ◽  
Guyup Mahardhian Dwi Putra
Keyword(s):  
Fluidized Bed ◽  
Air Flow ◽  
Scale Up ◽  
Drying Time ◽  
Fluidized Bed Dryer ◽  
A Value ◽  
Air Flow Velocity ◽  
Time Required ◽  
The Masses ◽  
Drying Chamber

The available Fluidized Bed dryer has low drying capacity so it is necessary to increase the dimensions to improve the drying capacity. This study aimed to increased the dimensions of the Fluidized Bed dryer, to determined the drying capacity, and to conducted technical tests. This research was conducted at Power and Agriculture Machinery, Faculty of Food and Agroindustrial Technology, University of Mataram. The method used in this research was experimental method with mathematical approach. The parameters used in this study was the scale parameter and technical test parameters. Scale Up Fluidized Bed dryer was done in the drying chamber which includes the dimensions of the drying chamber and drying capacity. Technical testing included air flow velocity, the minimum fluidization velocity, temperature, drying time and space dryer efficiency. The drying chamber is a cylinder with a diameter of 40 cm, height 200 cm and 0.1256 m2 area of the base. The capacity of the Fluidized Bed dryer before Scale Up was 4 kg and the capacity after Scale Up was 8 kg. The speed of air flow through the drying chamber was 3 m/s. The distribution of temperature during the drying process ranges between 40-50℃ and 50-60℃. According to the research, the more the masses drained, the longer the time required to dry the material. The efficiency of the drying chamber mostly present in the temperature range of 50-60℃ with a value of 94.04%.  Keywords: fluidized bed, scale up, technical test ABSTRAK Alat pengering Fluidized Bed yang tersedia memiliki kapasitas pengeringan yang rendah sehingga diperlukan peningkatan ukuran dimensi alat untuk meningkatkan kapasitas pengeringan. Penelitian ini bertujuan untuk meningkatkan ukuran dimensi alat pengering Fluidized Bed, menentukan kapasitas pengeringan dan melakukan uji teknis. Penelitian ini dilakukan di Laboratorium Daya dan Mesin Pertanian Fakultas Teknologi Pangan dan Agroindustri Universitas Mataram. Metode yang digunakan pada penelitian ini adalah metode eksperimental dengan pendekatan matematis. Parameter yang digunakan pada penelitian ini adalah parameter Scale Up dan parameter uji teknis. Scale Up alat pengering Fluidized Bed dilakukan pada bagian ruang pengering yang meliputi dimensi ruang pengering dan kapasitas pengeringan. Uji teknis meliputi kecepatan aliran udara, kecepatan minimum fluidisasi, suhu, waktu pengeringan, dan efisiensi ruang pengering. Ruang pengering berbentuk silinder dengan diameter 40 cm, tinggi 200 cm, dan luas alas 0,1256 m2. Kapasitas alat pengering Fluidized Bed sebelum Scale Up adalah 4 kg dan kapasitas setelah Scale Up sebesar 8 kg. Kecepatan aliran udara yang melewati ruang pengering adalah 3 m/s. Sebaran suhu selama proses pengeringan berkisar antara 40-50℃ dan 50-60℃. Berdasarkan hasil penelitian semakin banyak massa yang dikeringkan semakin lama waktu yang dibutuhkan untuk mengeringkan bahan tersebut. Efisiensi ruang pengering yang paling besar terdapat pada kisaran suhu 50-60℃ dengan nilai 94,04%.   Kata kunci: fluidized bed, scale up, uji teknis

Study on Drying Characteristics of Microalgae under Different Conditions

2013 ◽  
Vol 724-725 ◽  
pp. 296-299
Author(s):  
Chun Xiang Chen ◽  
Xiao Qian Ma ◽  
Xiao Cong Li ◽  
Wei Ping Qin
Keyword(s):  
Moisture Content ◽  
Mass Loss ◽  
Fresh Water ◽  
Chlorella Vulgaris ◽  
Drying Process ◽  
Drying Time ◽  
Drying Characteristics ◽  
Second Stage ◽  
Drying System ◽  
Two Stages

To find out an alternative of coal saving, a kind of microalgae, Chlorella vulgaris (C. vulgaris) which is widespread in fresh water was studied by digital blast drying system. The effect of the moisture content, drying thickness and temperature on the drying process of C. vulgaris were investigated. The results indicated that when the drying temperature is high, the moisture content is low and the material thickness is small, the drying time is short. The drying process of C.vulgaris can be divided into two stages, and the mass loss is mainly occurred in the second stage . The results will provide guidance for design of drying process and dryer of microalgae.

scholarly journals KARAKTERISTIK FISIKOKIMIA PATI SAGU HASIL PENGERINGAN SECARA FLUIDISASI MENGGUNAKAN ALAT PENGERING CROSS FLOW FLUIDIZED BED BERTENAGA SURYA DAN BIOMASSA

REAKTOR ◽  
2011 ◽  
Vol 13 (3) ◽  
pp. 155 ◽  
Author(s):  
Abadi Jading ◽  
Eduard Tethool ◽  
Paulus Payung ◽  
Sarman Gultom
Keyword(s):  
Chemical Composition ◽  
Fluidized Bed ◽  
Cross Flow ◽  
Physicochemical Characteristics ◽  
Sago Starch ◽  
Drying Time ◽  
Fluidized Bed Dryer ◽  
Conventional Drying ◽  
Fluidized Bed Drying

PHYSICOCHEMICAL CHARACTERISTICS OF SAGO STARCH OBTAINED FROM FLUIDIZED BED DRYING USING SOLAR AND BIOMASS POWERED CROSS FLOW FLUIDIZED BED DRYER. The research aim is to study the comparative quality of sago starch drying results using cross flow fluidized bed dryer powered by solar and biomass in conventional drying, particularly the chemical composition and physicochemical characteristics. This research was conducted through a drying phase of wet sago starch using a cross flow fluidized bed dryer, and drying in conventional as well as dried sago starch quality testing results are drying. The results of this study indicate that dry sago starch which has been drained by means of cross flow fluidized bed dryer has a chemical composition that does not vary much with starch which is dried by conventional drying, so that the dried sago starch produced by the dryer is very good. On the other hand the use of dryers is the more correct because the physicochemical properties of sago starch using a low drying temperature and drying time is short. Tujuan penelitian ini adalah mempelajari perbandingan kualitas pati sagu hasil pengeringan menggunakan alat pengering cross flow fluidized bed bertenaga surya dan biomassa dengan pengeringan secara konvensional, khususnya komposisi kimia dan karakteristik fisikokimia. Penelitian ini dilakukan melalui beberapa tahapan yaitu pengeringan pati sagu basah menggunakan alat pengering cross flow fluidized bed, pengeringan secara konvensional serta pengujian kualitas pati sagu kering hasil pengeringan. Hasil dari penelitian ini menunjukkan bahwa pati sagu kering yang telah dikeringkan dengan alat pengering cross flow fluidized bed memiliki komposisi kimia yang tidak berbeda jauh dengan pati yang dikeringkan dengan cara pengeringan secara konvensional, sehingga pati sagu kering yang dihasilkan oleh alat pengering tersebut sangat baik. Di sisi lain penggunaan alat pengering ini semakin memperbaiki sifat fisikokimia pati sagu sebab menggunakan suhu pengeringan yang rendah dan waktu pengeringan yang singkat.   Kata Kunci: pengering unggun terfluidakan; fisikokimia; pati sagu

scholarly journals Influence of Different Hot Air Drying Temperatures on Drying Kinetics, Shrinkage, and Colour of Persimmon Slices

Foods ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 101 ◽  
Author(s):  
Senadeera ◽  
Adiletta ◽  
Önal ◽  
Di Matteo ◽  
Russo
Keyword(s):  
Moisture Content ◽  
Quadratic Model ◽  
Drying Process ◽  
Air Velocity ◽  
Hot Air Drying ◽  
Drying Time ◽  
Air Drying ◽  
Drying Characteristics ◽  
Drying Temperature ◽  
Hot Air

Drying characteristics of persimmon, cv. “Rojo Brillante”, slabs were experimentally determined in a hot air convective drier at drying temperatures of 45, 50, 55, 60, and 65 °C at a fixed air velocity of 2.3 m/s. It was observed that the drying temperature affected the drying time, shrinkage, and colour. Four empirical mathematical models namely, Enderson and Pabis, Page, Logarithmic, and Two term, were evaluated in order to deeply understand the drying process (moisture ratio). The Page model described the best representation of the experimental drying data at all investigated temperatures (45, 50, 55, 60, 65 °C). According to the evaluation of the shrinkage models, the Quadratic model provided the best representation of the volumetric shrinkage of persimmons as a function of moisture content. Overall, higher drying temperature (65 °C) improved the colour retention of dried persimmon slabs.

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