Abhay Lingayat Chandramohan V P V R K Raju Manuscript ID: 619305 Experimental investigation on the drying behavior of Banana chips during indirect solar drying 10 th Asia Pacific Drying Conference (ADC-2019) Dec 14-17 th Vadodara Gujarath Organised by National Institute of Technology Rourkela Odisha India Direct sun drying method has been practiced since ancient time and it is still being widely used in developing countries Although this method of drying is cheap yet it is associated with problems like contamination by foreign materials by dirt dust and wind-blown debris and insect infestation as well as uneven drying Fortunately India is blessed with abundant solar energy arid parts of

Experimental investigation and thermodynamic performance

Experimental investigation and thermodynamic performance analysis of a solar dryer using an evacuated-tube air collector The present work presents a thermodynamic performance analysis of a solar dryer with an evacuated-tube collector Drying experiments for apples carrots and apricots were conducted after a preliminary stage of the investigation which included measurements for the

circulation of the drying air In the direct dryer solar radiation passes through a transparent cover fitted on 29 the top part of the dryer and is directly absorbed by the crop placed on the drying bed under the transparent cover In an indirect dryer air is heated in a separate solar collector and circulated through the drying bed where it picks moisture from the crop The mixed mode

The indirect type forced convection solar dryer is mainly constructed with four essential features namely the blower the evacuated tube collector the drying chamber and the chimney Fig 1 shows the section of the solar dryer The drying chamber is made of stainless steel sheets of thickness 27 5mm and insulated on all sides with rock wool slab to prevent a loss of heat It consists of two

Thermal Performance Evaluation of Indirect Forced Cabinet Solar Dryer for Cashew Drying American-Eurasian Journal of Agriculture Environmental Science 2014 14(11):1248-1254 Shanmugam and Natarajan E Experimental investigation of forced convection and desiccant integrated solar dryer Renewable Energy 2006 31:1239-1251

Investigation of Indirect Solar Drying of Ginger Rhizomes 1957 Journal of Engineering Science and Technology July 2017 Vol 12(7) Nomenclatures A o c Area of collector outlet m 2 A t Area of the tray m 2 C Constant c v Specific heat J/kgC Gr Grashof number h c Convective heat transfer coefficient W/m 2C h c avg


investigation of different solar dryers and vegetables drying vinod kumar sharma details of the experiment conducted and the conclusions drawn and features 8 study on egg plant drying by an indirect solar dryer alirezaazimi effective moisture diffusivity by slope method follows 9 forced convection type solar tunnel for industrial application m s dulawat n s rathore design a forced

Indirect natural convection solar dryers are mainly benefited by small‐scale farmers as it takes less drying time and possess better quality when compared to open sun drying Drying anti‐diabetic medicinal products in INCSD can be considered as a boon for pharmaceutical industries as the dryer can give good‐quality dried products that can be used for preparing anti‐diabetic medicines

Margarita Castillo Tllez Isaac Pilatowsky Figueroa Beatrz Castillo Tllez Erick C Lpez Vidaa and Anabel Lpez Ortiz Solar drying of Stevia (Rebaudiana Bertoni) leaves using direct and indirect technologies Solar Energy 10 1016/j solener 2017 11 031 159 (898-907) (2018)

Experimental Investigation of Solar Air Heater with Charcoal Porous Medium: M Pradhapraj and V Velmurugan: Abstract: In this study the testing and improvement of a new type of solar dryer particularly meant for drying vegetables and grain is described The dryer split into two parts: first one solar collector and second drying chamber

13 05 2013convection solar dryer Kaewkiewet al [17] presented an experimental study of the performance of a large-scale greenhouse type solar dryer for drying chilli in Thailand This experimental investigation led them to conclude that solar greenhouse dryer is less time consuming as compared with the natural sun drying and the colour of products dried in the solar greenhouse dryer is better

The direct prototype solar dryer was covered by transparent polyethylene film while black polyethylene film was used to cover the indirect prototype solar dryer Each dryer has six perforated galvanized steel trays with the dimension of 1 00 0 90 0 04 m and the spacing between them was 0 12 m Each tray was loaded with 1 2 kg of fresh whole mint which was spread as a single thin layer

time of drying ginger has been redu ced from 13 hrs to 6 hrs [1] Lamnatou et al refined a novel solar dryer (SD) with ETSC integrated with heat pipe and proved that the warm outlet air of the collector attains the temperature levels suitable for drying of vegetable products without the head of preheating Thus the collector as the source of

efficiency of indirect solar dryer for drying curry leaves was varied between 4 9% and 23 02% Based on the statistical parameters the Modified Henderson and Pabis model and Wang and Singh model were selected for predicting the drying characteristics of curry leaves The payback period for the solar dryer was evaluated as 8 months which is found to be much lower when compared with the entire

Experimental Analytical Investigation on Modified Solar

Experimental Analytical Investigation on Modified Solar Dryer with Recirculation of Air C Velmurugan S Sivakumar Ashwin Bala N Harish Kumar and S Prithviraj Department Of Mechanical Engineering Kumaraguru College of Technology Saravanampatty Coimbatore Tamil Nadu INDIA Abstract An indirect forced convection solar drier integrated with recirculation of air has been

The thin layer drying behavior of lettuce leaves was investigated using an indirect pilot solar dryer with thermal energy storage in water equipped with solar collectors and photovoltaic cells The drying procedure consisted of shredded lettuce leaves temperature ≤ 52 C airspeed 1 0 m∙s−1 and process time ~10 0 h Fifteen drying models were adjusted to the experimental data

El-Sebaii A A and Shalaby S M Experimental investigation of an indirect-mode forced convection solar dryer for drying thymus and mint Energy conversion and management Vol 74(2013) pp 109-116 Ehsan mohseni-languri Hessam Taherian Reza Masoodi and John R Reisel An energy and exergy study of a solar thermal air collector Thermal science Vol 13 (2009) 1 pp 205-216 Kesavan

Solar air collectors are widely used in drying process of food and agricultural products They are combined with dryer room to constitute the indirect solar dryer In this type of solar dryer the drying process efficiency depends on solar air collector's one Heat transfer augmentation using artificial roughness have been studied by many authors both numerically and experimentally

The current work is about the investigation of different types of drying systems and solar dryers The aim of the study is to design a heat exchanger system using solar energy for drying processes and enhancing their performances Advanced nanotechnology applications like the utilization of the nanoparticles and fin profiles for heat transfer enhancements are found to be one of the areas of

An indirect type solar dryer is fabricated with the components like evacuated tube collector drying chamber and blower The performance of the drier is evaluated by carrying out drying experiments with copra at Coimbatore district Tamilnadu India A short survey of these showed that applying the indirect type solar dryer not only significantly reduced the drying time but also resulted in

01 05 2002Experimental Investigation of Drying Thymus Cut Leaves in Indirect Solar Dryer With Phase Change Material Journal of Solar Energy Engineering 2017 139 (6) DOI: 10 1115/1 4037816 Mohammad Arabi Mohammad Mehdi Faezipour Mohammad Layeghi Majid Khanali Hamid Zareahosseinabadi