Spray dryers are widely used in the chemical, pharmaceutical and food industries to turn liquid products into free flowing powder. To increase the energy efficiency and improve the product quality, the dryer in question combines drying in four stages, instead of single stage drying. In this paper, we present our latest developments within advanced process control for the four-stage spray dryer....

Dryer system is a controlled plant which is normally used in chemical industry. The proper modeling of this system facilitates its maintenance and keeping. Normally this is not an easy task, unless having a complete model of the process, due to sudden and nonlinear events. In this paper the linear identification of dryer plant in Arak petroleum, is introduced according to the Autoregressive wit...

Drying kinetics of sour cheery is investigated in solar dryer with forced convection and under open Sun with natural convection. Drying data were fitted to different mathematical models, whose performance was investigated by comparing coefficient (R), reduced chi-square (Ç) and root mean square error (RMSE) between the observed and predicted moisture ratios. Among these models, drying model dev...

Beetroot (Beta vulgaris L.) has compounds that can be used for body health, beauty skincare, food additives, and much more. This research was aimed to prepare the dry extract of beetroot formulate it into a loose powder, compact cream. The preparation started by adding 2, 4, or 6% extract, then blending pulp drying resultant residue using freeze dryer. Testing on color homogeneity, polishing, b...

Currently, the physicochemical quality of dried chillies is becoming a characteristic consumer choice. A study was conducted to investigate properties drying by vacuum tray dryer (VTD) when compared with sun (SD) and freeze-drying (FD). The highest capsaicin content lowest moisture achieved VTD technique. However, total phenolic antioxidant activity are in FD followed VTD. Furthermore, physioch...

Masker gel peel off adalah salah satu jenis kosmetika yang memiliki keunggulan dalam penggunaannya yaitu mudah diangkat dan dilepaskan. Kulit buah pepaya (Carica papaya L.) kandungan antioksidan kuat seperti serat,senyawa fenolik,abu,vitamin C serta berbagai material kalium belerang. Tujuan penelitian ini untuk memformulasikan ekstrak kulit menjadi masker dengan variasi konsentrasi HPMC, menget...

to increase agricultural crops’ quality and to minimize losses in the final product and used energy during the drying process, major drying system parameters should be continuously controlled. precise control of such parameters is attained by using automatic control systems. to optimize the overall dryer efficiency in a forced convective solar dryer, a controller was designed, constructed a...

A frequent object of study in linguistic typology is the order of elements {demonstrative, adjective, numeral, noun} in the noun phrase. The goal is to predict the relative frequencies of these orders across languages. Here we use Poisson regression to statistically compare some prominent accounts of this variation. We compare feature systems derived from Cinque (2005) to feature systems given ...

The structural and physical stability of solid dispersions have not been adequately explored during spray drying manufacturing processes. In this study a wide range of compositions of naproxen/PVP-VA 64 (poly(1-vinylpyrrolidone-co-vinyl acetate)) and miconazole/PVP-VA 64 solid dispersions prepared by different laboratory spray dryers were collected from various selected locations and used to in...

Indonesia is an agricultural country with 40% of the population's livelihood provided by farmers. Harvested rice typically has a moisture content 20-27% on wet basis. The type artificial dryer that often used tub or rotary type. This research aims to develop using combined tray and rotary-type method. Based result, higher speed dryer, shorter drying time. net result this test relationship betwe...