Template-Type: ReDIF-Article 1.0 Author-Name: editors Title: LIST OF REVIEWERS - 2018 Journal: Research in Agricultural Engineering Pages: I Volume: 65 Issue: 1 Year: 2019 DOI: 10.17221/11786-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/11786-RAE.html File-Format: text/html Handle: RePEc:caa:jnlrae:v:65:y:2019:i:1:id:11786-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Anirban Dey Author-Workplace-Name: Department of Food Technology and Nutrition, Faculty of Technology and Sciences, Lovely Professional University, Phagwara, India Author-Workplace-Name: Pimpernel Food Products Pvt. Ltd., Chandannagar, India Author-Name: Somya Singhal Author-Workplace-Name: Department of Food Technology and Nutrition, Faculty of Technology and Sciences, Lovely Professional University, Phagwara, India Author-Name: Prasad Rasane Author-Workplace-Name: Department of Food Technology and Nutrition, Faculty of Technology and Sciences, Lovely Professional University, Phagwara, India Author-Workplace-Name: Centre of Food Science and Technology, Banaras Hindu University, Varanasi, India Author-Name: Sawinder Kaur Author-Workplace-Name: Department of Food Technology and Nutrition, Faculty of Technology and Sciences, Lovely Professional University, Phagwara, India Author-Name: Navneet Kaur Author-Workplace-Name: School of Engineering Technology and Applied Science, Centennial College, Toronto, Canada Author-Name: Jyoti Singh Author-Workplace-Name: Department of Food Technology and Nutrition, Faculty of Technology and Sciences, Lovely Professional University, Phagwara, India Title: Comparative kinetic analysis of convective and vacuum dried Opuntia ficus-indica (L.) Mill. cladodes Abstract: Opuntia ficus-indica (Linnaeus) Miller more usually known as fodder palm or nopal belongs to family Cactaceae. In the present study, the drying behavior of the O. ficus-indica cladodes was observed. The study concentrates on comparatively studying two types of commercial drying methods viz., forced convective drying (tray drying) and vacuum drying to dry nopal cladodes at three different temperatures viz. 40, 50 and 60°C. The equilibrium moisture contents for forced convective drying was achieved at 540-720 min and for that of vacuum drying at 600-840 min. Three mathematical drying models for thin layer drying viz. Page, Lewis and Henderson-Pabis model were evaluated for both convective drying and vacuum drying. Statistical parameters such as the coefficient of determination (R2), root mean square error and reduced χ2 were used to fit the models. Page model was found to be satisfactory for both forced convective and vacuum drying of the nopal cladodes at 40 and 50°C respectively. Among these, two drying methods, forced convective drying method was found to be more suitable than the vacuum drying method for nopal cladodes on the basis of drying time and statistical parameters. Keywords: nopal cladodes, forced convective drying, vacuum drying, mathematical models, Page model Journal: Research in Agricultural Engineering Pages: 1-6 Volume: 65 Issue: 1 Year: 2019 DOI: 10.17221/18/2018-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/18/2018-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201901-0002.txt Handle: RePEc:caa:jnlrae:v:65:y:2019:i:1:id:18-2018-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Zahra Basati Author-Workplace-Name: Department of Biosystem Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh-Ardabili, Ardabil, Iran Author-Name: Ezzatollah Askari Asli- Ardeh Author-Name: Vali Rasooli-Sharabiani Author-Workplace-Name: Department of Biosystem Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh-Ardabili, Ardabil, Iran Title: Effect of moisture content on terminal velocity of lentil grain Abstract: One of the aerodynamic characteristics of lentil is its terminal velocity. In order to determinate the terminal velocity, was designed a vertical wind tunnel. It was fabricated based on existing methods and standards. For decreasing the non-uniformity of airflow in the vertical wind column, was used a honey comb test area with 5 mesh screens. So, a wind tunnel nozzle was designed and fabricated using Morel method with the aim of increasing airflow rate and decreasing losses due to mesh screens. The height and section area of tunnel were 1.425 m and 0.1 × 0.1 m2, respectively. The pressure loss values were calculated at different parts of tunnel and then, the required power of tunnel was determined. In this study, lentil grains of Kimia and Gachsaran varieties were separated at three groups based on their size (small, medium and large). Then, the terminal velocity was measured at 5 levels of moisture content (8, 12, 16, 20 and 24% (w.b.)) for each group. The results showed that Kimia and Gachsaran variety had the highest (7.204 m.s-1) and the lowest (6.987 m.s-1) terminal velocity, respectively. The mean value of terminal velocity increased linearly from 6.751 to 7.396 m.s-1 by increasing the moisture content from 8 to 24% (w.b.). Also, by increasing the grains dimension from small to large, the terminal velocity increased from 6.345 to 7.792 m.s-1. Keywords: aerodynamic characteristics, dimension, grain, wind tunnel Journal: Research in Agricultural Engineering Pages: 7-12 Volume: 65 Issue: 1 Year: 2019 DOI: 10.17221/92/2017-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/92/2017-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201901-0003.txt Handle: RePEc:caa:jnlrae:v:65:y:2019:i:1:id:92-2017-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Ratinun Luampon Author-Workplace-Name: Department of Mechanical Engineering, Faculty of Engineering and Architecture, Rajamangala University of Technology Isan, Nakhonratchasima, Thailand Author-Name: Suparerk Charmongkolpradit Author-Workplace-Name: Department of Mechanical Engineering, Faculty of Engineering, Rajamangala University of Technology Isan, Khonkaen, Thailand Title: Temperature and relative humidity effect on equilibrium moisture content of cassava pulp Abstract: The purpose of this research was to study the effect of temperature and relative humidity on the equilibrium moisture content of cassava pulp. In experiments, cassava pulp was tested with a static method that controlled the temperature at 30, 50 and 70°C and controlled relative humidity in a range 10-90% with standard saturated salt solutions as LiCl, MgCl2, NaBr, NaCl and KNO3. Five equations of equilibrium moisture isotherm were analysed to predict the equilibrium moisture content, which was a guideline to develop a new isotherm equation. The experimental results showed that the equilibrium moisture content was increased with increased relative humidity whereas it decreased with increased drying temperature. Therefore, the drying process and storage method of cassava pulp must control temperature and relative humidity of no more than 50°C and 60%, respectively. The analysis of isotherm equations revealed that the new isotherm equation has high accuracy to predict the equilibrium moisture content of cassava pulp and higher R2 correlation with the experimental data than five isotherm equations. Keywords: agri-product storage, food processing, microbiological stability, isotherm, tapioca Journal: Research in Agricultural Engineering Pages: 13-19 Volume: 65 Issue: 1 Year: 2019 DOI: 10.17221/112/2017-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/112/2017-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201901-0004.txt Handle: RePEc:caa:jnlrae:v:65:y:2019:i:1:id:112-2017-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Boris Kotov Author-Workplace-Name: Department of General Technical Disciplines and Occupational Safety, Faculty of Engineering and Technology, Vinnytsa National Agrarian University, Vinnitsa, Ukraine Author-Name: Anatoly Spirin Author-Workplace-Name: Department of General Technical Disciplines and Occupational Safety, Faculty of Engineering and Technology, Vinnytsa National Agrarian University, Vinnitsa, Ukraine Author-Name: Roman Kalinichenko Author-Workplace-Name: Department of Electric Power Engineering, Electrical Engineering and Electromechanics, Faculty of Engineering and Energy, National University of Life and Environmental Scienses of Ukraine, Kiev, Ukraine Author-Name: Valentyna Bandura Author-Workplace-Name: Department of General Technical Disciplines and Occupational Safety, Faculty of Engineering and Technology, Vinnytsa National Agrarian University, Vinnitsa, Ukraine Author-Name: Yurii Polievoda Author-Workplace-Name: Department of General Technical Disciplines and Occupational Safety, Faculty of Engineering and Technology, Vinnytsa National Agrarian University, Vinnitsa, Ukraine Author-Name: Ihor Tverdokhlib Author-Workplace-Name: Department of General Technical Disciplines and Occupational Safety, Faculty of Engineering and Technology, Vinnytsa National Agrarian University, Vinnitsa, Ukraine Title: Determination the parameters and modes of new heliocollectors constructions work for drying grain and vegetable raw material by active ventilation Abstract: The article presents the results of experimental studies of the air heating efficiency in heliocollectors with different surface forms developed in order to justify their use in equipment for active ventilation of grain and feed raw materials. Keywords: solar radiation, energy saving, heat transfer intensification, temperature, hydraulic resistance Journal: Research in Agricultural Engineering Pages: 20-24 Volume: 65 Issue: 1 Year: 2019 DOI: 10.17221/73/2017-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/73/2017-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201901-0005.txt Handle: RePEc:caa:jnlrae:v:65:y:2019:i:1:id:73-2017-RAE Template-Type: ReDIF-Article 1.0 Author-Name: Jüri Olt Author-Name: Keio Küüt Author-Workplace-Name: Institute of Technology, Estonian University of Life Sciences, Tartu, Estonia Author-Name: Risto Ilves Author-Workplace-Name: Institute of Technology, Estonian University of Life Sciences, Tartu, Estonia Author-Name: Arne Küüt Author-Workplace-Name: Institute of Technology, Estonian University of Life Sciences, Tartu, Estonia Title: Assessment of the harvesting costs of different combine harvester fleets Abstract: This study discusses practical collection methods of cereal harvesting costs in different agricultural holdings in order to effectively manage combine harvester fleets, make economically reasoned decisions on the exploitation of combine harvesters, reduce harvesting costs and consequently the cost price of cereals. For this purpose, the author used work results of combine harvesters monitored by three randomly selected agricultural holdings, collected practical information on harvesting, analysed this information and provided assessments on the effectiveness of their combine harvester fleet. Evidently, not all combine harvester fleets and combines operate with the same efficiency, as their harvesting costs are different. Keywords: combine harvester performance, fixed and variable cost, cereal harvesting unit cost, fuel consumption Journal: Research in Agricultural Engineering Pages: 25-32 Volume: 65 Issue: 1 Year: 2019 DOI: 10.17221/98/2017-RAE File-URL: http://rae.agriculturejournals.cz/doi/10.17221/98/2017-RAE.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/rae-201901-0006.txt Handle: RePEc:caa:jnlrae:v:65:y:2019:i:1:id:98-2017-RAE