scholarly journals Energetic Analysis in a Spray Drying Process

2020 ◽  
Vol 7 ◽  
pp. 40-47
Author(s):  
Alex Notaroberto Madeira ◽  
Carlos Alberto Chaves ◽  
Wendell de Queiróz Lamas
Keyword(s):  
Spray Drying ◽  
Water Mass ◽  
Spray Dryer ◽  
Water Spray ◽  
Drying Process ◽  
Power Sources ◽  
Atmospheric Air ◽  
Energetic Analysis

 The present work aims in evaluate the installation of an equipment of spray drying, by psychrometry technique, analyse the power sources consumption and relates with the productivity of the equipment, by energy auditory. This work consists in comparing the evaporation capacity of a 750 kg/h of water spray dryer and the amount of water that comes from atmospheric air, where the equipment consumes 160 kWh and 80 kg of LGP/h. Therefore, this work demonstrates that to project a spray dryer it must be analysed these water mass values in atmospheric air and be contemplated a dehumidifier in order to prevent so significant and different losses in different periods of the same day.

scholarly journals CFD study of air flow patterns and droplet trajectories in a lab scale vortex chamber spray dryer

2018 ◽  
Author(s):  
Umair Jamil Ur Rahman ◽  
Ilias Baiazitov ◽  
Artur Pozarlik ◽  
Gerrit Brem
Keyword(s):  
Spray Drying ◽  
Vortex Chamber ◽  
Temperature Fields ◽  
Average Error ◽  
Drying Rate ◽  
Spray Dryer ◽  
Water Spray ◽  
Drying Technology ◽  
Novel Design ◽  
Good Agreement

In order to develop an alternative spray drying technology, a high drying rate in a smaller volume must be achieved. In this paper, results of CFD study are presented, carried out to investigate the possibility of spray drying in a novel design vortex chamber. The model is validated against experimental data, that makes a good agreement with an average error of 7% with only air and 24% with water spray. Results of temperature fields and droplet impact positions are discussed. The computations demonstrate that vortex chamber spray dryer can be an attractive solution for drying technology. Keywords: CFD; spray drying; vortex chamber; atomization; 

scholarly journals Effect of Drying Temperature of Small Scale Spray Dryer on Physical Properties of Coffee Powder

2020 ◽  
Vol 28 (4) ◽  
Author(s):  
Joko Nugroho Wahyu Karyadi ◽  
Dwi Ayuni ◽  
Tsania Ayu Rohani ◽  
Devi Yuni Susanti
Keyword(s):  
Moisture Content ◽  
Physical Properties ◽  
Spray Drying ◽  
Product Yield ◽  
Feed Solution ◽  
Small Scale ◽  
Inlet Temperature ◽  
Spray Dryer ◽  
Drying Process ◽  
High Product Yield

Nowadays, coffee has become one of the most favorable commodities for beverages, flavoring as well as for cosmetic industries. In Indonesia, coffee becomes more popular, especially among youngsters. In this study, the spray drying process was evaluated, giving the potential of how simple spray dryer can help local farmers of Indonesia to produce their coffee powders. One small scale of spray dryer was constructed with the total dimensions of 2.85 x 0.64 for length x width, with a height of 2.32 m. The spray dryer was equipped with a digital thermo regulator, the pneumatic nozzle system, and 4 finned heaters with the power of 2700 watt for each. The spray drying constructed was revealed to be able to produce coffee powders with fine quality. The inlet temperature of the drying chamber, as well as the initial Brix content of feed solution, were proven to affect the physical properties of powder produced such as moisture content, product yield, and solubility. The final moisture content of powders was ranged from 3 - 7% db, with the high product yield of the drying process, which could reach up to 70%.

Two-step spray-drying synthesis of dense and highly luminescent YAG:Ce3+ phosphor powders with spherical shape

RSC Advances ◽  
2015 ◽  
Vol 5 (11) ◽  
pp. 8345-8350 ◽  
Author(s):  
Jung Sang Cho ◽  
Kyeong Youl Jung ◽  
Yun Chan Kang
Keyword(s):  
Size Distribution ◽  
Spray Drying ◽  
Spherical Shape ◽  
Potential Method ◽  
Luminescence Properties ◽  
Spray Dryer ◽  
Narrow Size Distribution ◽  
Drying Process

Two-step spray drying using a commercially available spray dryer was carried out to prepare YAG:Ce3+ phosphor particles. The two-step spray-drying process was a potential method for producing YAG:Ce3+ phosphor particles with spherical shape, narrow size distribution, and good luminescence properties.

scholarly journals Influence of combined hydrolyzed collagen and maltodextrin as carrier agents in spray drying of cocona pulp

2020 ◽  
Vol 23 ◽  
Author(s):  
Diana Patricia Vargas-Muñoz ◽  
Louise Emy Kurozawa
Keyword(s):  
Particle Size ◽  
Spray Drying ◽  
Chemical Structure ◽  
Particle Diameter ◽  
Spray Dryer ◽  
Drying Process ◽  
Hydrolyzed Collagen ◽  
Bioactive Properties ◽  
Encapsulation Process ◽  
Mean Particle Diameter

Abstract This work aimed to evaluate the effect of carrier agents containing maltodextrin and protein, represented by hydrolyzed collagen on the spray drying process of cocona (Solanum sessiliflorum Dunal), and on the properties of the resulting powders. We used pre-established proportions between the solids of cocona pulp and the carrier agents (P:CA), and among carrier agents themselves, maltodextrin and hydrolyzed collagen, (MD:HC). The process was carried out in a spray dryer at an inlet air temperature of 120 ºC. We prepared twelve feed solutions containing 20% of total solids, with P:CA ratios of 1:3, 1:4, 1:5 and 1:6, and MD:HC ratios of 0:100, 50:50, and 100:0. Solids recovery was obtained for the evaluation of the spray drying process. The cocona pulp powders were analyzed for moisture content, water activity, particle size distribution, mean particle diameter, chemical structure (FTIR) and color. For a P:CA of 1:6, for the sample formulated with hydrolyzed collagen only, solids recovery (96.2%) was much higher than that of the sample with maltodextrin only (39.2%). The chemical structure of cocona powders can be considered a sign of a good encapsulation process. The color of the cocona pulp powder was similar to that of the carrier agents. The formulation with highest content of hydrolyzed collagen improved the recovery of solids, guaranteed the cocona pulp encapsulation, and obtained fruit powders with bioactive properties.

scholarly journals Şeker İçeriği Yüksek Gıdaların Püskürtülerek Kurutulması: Ürün Kazanımı ve Toz Ürün Özelliklerinin Geliştirilmesi

2016 ◽  
Vol 4 (5) ◽  
pp. 336 ◽  
Author(s):  
Mehmet Koç ◽  
Figen Kaymak-Ertekin
Keyword(s):  
Spray Drying ◽  
Food Industry ◽  
Low Molecular Weight ◽  
Spray Dryer ◽  
Powder Form ◽  
Drying Method ◽  
Drying Process ◽  
High Moisture ◽  
Rich Liquid ◽  
Low Solubility

Spray drying is the most preferred drying method to produce powdered food in the food industry and it is also widely used to convert sugar-rich liquid foods to a powder form. During and/or after spray drying process of sugar-rich products, undesirable situation was appeared such as stickiness, high moisture affinity (hygroscopicity) and low solubility due to low molecular weight monosaccharides that found naturally in the structure. The basis of these problems was formed by low glass transition temperature of sugar-rich products. This review gives information about the difficulties in drying of sugar-rich products via spray dryer, actions need to be taken against these difficulties and drying of sugar-rich honey and fruit juices with spray drying method.

Fate of Salmonella and Enterococcus faecium During Pilot-Scale Spray Drying of Soy Protein Isolate

2020 ◽  
Author(s):  
Philip Steinbrunner ◽  
Bradley P. Marks ◽  
Elliot T. Ryser ◽  
Quincy J. Suehr ◽  
Sanghyup Jeong
Keyword(s):  
Spray Drying ◽  
Soy Protein ◽  
Enterococcus Faecium ◽  
Phage Type ◽  
Soy Protein Isolate ◽  
Pilot Scale ◽  
Protein Isolate ◽  
Spray Dryer ◽  
Drying Process ◽  
Powder Product

Outbreaks and recalls associated with microbial contamination of powdered foods have raised concern for the safety of the spray drying process and its products. However, little research on the fate of bacteria during the spray drying process has been done, leaving much unknown about the risks of contamination in spray dryers. Therefore, quantifying the contamination levels of  Salmonella  and  Enterococcus faecium  (as a surrogate) in various locations within a pilot scale spray dryer can help illustrate the distribution of bacterial contamination, including the final product. A 10% w/w dispersion of water and soy protein isolate was mixed with tryptic soy broth containing yeast extract inoculated with  Salmonella  Enteritidis phage type 30 ( S.  Enteritidis PT30) or  E. faecium  NRRL B-2354. This dispersion was spray dried using a pilot scale tall-form co-current spray dryer at inlet air temperatures of 180, 200, or 220°C. After drying, samples of powder from 8 locations within the system were collected/surface swabbed, plated, and enumerated. Spray drying achieved 2.40-4.15 and 2.33-2.83 log reductions in concentration of  Salmonella  and  E. faecium,  respectively in the final powder product accumulated in the dryer’s collectors.  Salmonella  and  E. faecium  were found in varying concentrations in all locations within the spray dryer after a complete drying cycle. Differences in inlet air temperature between 180-220°C had no significant effect on the inactivation levels. As a surrogate,  E. faecium  was more resistant to spray drying than  Salmonella . Overall, spray drying is capable of significant bacterial reduction in the final powder product, which can be combined with other hurdle technologies. However, adequate cleaning and sanitization procedures must be taken into considerations to prevent cross-contamination.

scholarly journals Optimization of inulin production process parameters using response surface methodology

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Wasim Akram ◽  
Navneet Garud
Keyword(s):  
Response Surface ◽  
Spray Drying ◽  
Product Yield ◽  
Drying Methods ◽  
Process Variables ◽  
Drying Process ◽  
Uniform Size ◽  
Drying Temperature ◽  
Yield Value ◽  
Internal Configuration

Abstract Background Chicory is one of the major source of inulin. In our study, Box–Behnken model/response surface analysis (RSM) was used for the optimization of spray drying process variables to get the maximum inulin yield from chicory (Cichorium intybus L.). For this investigation, the investigational plan utilized three process variables drying temperature (115–125 °C), creep speed (20–24 rpm), and pressure (0.02–0.04 MPa). Result The optimal variables established by applying the Box–Behnken model were as follows: drying temperature 119.20 °C, creep speed 21.64 rpm, and pressure 0.03 MPa. The obtained powdered inulin by spray drying was investigated for the yield value, identification, size, and surface morphology of the particle. The inulin obtained from the spray drying process consists of a fine molecule-sized white powder. Instead, the drying methods shows a significant effect on the morphology and internal configuration of the powdered inulin, as the inulin obtained from spray drying was of a widespread and uniform size and shape, with a rough surface on increase in temperature and smoother surface while increasing the creep speed. The findings indicate that the spray drying with optimum parameters resulted in maximum product yield. Conclusion The outcomes of the study concluded that the product yield through spray drying technique under optimized condition is optimal as compared to other drying technique. Hence, this technique may be applied at commercial scale for the production of inulin.

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