Mathematical modeling of greenhouse solar dryers with natural and forced convection for agricultural products: state of the art

Sun-drying is the most widely used method of preserving agricultural products; however, under hostile climatic conditions it leads to serious losses in product quantity and quality. The use of solar drying technology in developing countries can reduce postharvest losses and significantly improve product quality compared to other methods. The development of mathematical models of solar dryers is necessary to be able to design, control and optimize this type of system. The aim of this study is to provide an overview of the different approaches to modeling and simulating greenhouse solar dryers, both of natural and forced convection. In addition, models that have not been extensively used in this area, such as empirical and numerical ones, are discussed.

[1]  B. K. Bala,et al.  Experimental and modelling performances of a roof-integrated solar drying system for drying herbs and spices , 2008 .

[2]  A. Farhat,et al.  Validation of a pepper drying model in a polyethylene tunnel greenhouse , 2004 .

[3]  B. K. Bala,et al.  Simulation of the indirect natural convection solar drying of rough rice , 1994 .

[4]  S. Thepa,et al.  Improvement of a rubber drying greenhouse with a parabolic cover and enhanced panels , 2016 .

[5]  Serm,et al.  Experimental Performance and Neural Network Modeling of a Large-scale Greenhouse Solar Dryer for Drying Natural Rubber Sheets , 2015 .

[6]  N. Panwar,et al.  Solar Drying , 2021, Fundamentals of Renewable Energy.

[7]  Kamaruzzaman Sopian,et al.  Review of solar dryers for agricultural and marine products , 2010 .

[8]  A. A. El-Sebaii,et al.  Solar drying of agricultural products: A review , 2012 .

[9]  K. Saçılık,et al.  Solar drying of Ayaş tomato using a natural convection solar tunnel dryer , 2010 .

[10]  Anil Kumar,et al.  Environomical Analysis and Mathematical Modelling for Tomato Flakes Drying in a Modified Greenhouse Dryer under Active Mode , 2014 .

[11]  Mortaza Aghbashlo,et al.  Modeling and Simulation of Deep-Bed Solar Greenhouse Drying of Chamomile Flowers , 2015 .

[12]  Bk Bala and Serm Janjai.  Solar drying of agricultural products , 2013 .

[13]  Bhupendra Gupta,et al.  A review on thermal models for greenhouse dryers , 2017 .

[14]  G. van Straten,et al.  What can systems and control theory do for agricultural science , 2008 .

[15]  G. N. Tiwari,et al.  Effect of mass on convective mass transfer coefficient during open sun and greenhouse drying of onion flakes , 2007 .

[16]  Dilip Jain,et al.  Effect of greenhouse on crop drying under natural and forced convection II. Thermal modeling and experimental validation , 2004 .

[17]  Abdelhamid Farhat,et al.  Experimental Study of the Drying of Hot Red Pepper in the Open Air, under Greenhouse and in a Solar Drier , 2014 .

[18]  G. Tiwari,et al.  Thermal Analysis of Photovoltaic Integrated Greenhouse Solar Dryer , 2016 .

[19]  S. Janjai,et al.  A large-scale solar greenhouse dryer using polycarbonate cover: Modeling and testing in a tropical environment of Lao People’s Democratic Republic , 2011 .

[20]  I. Hamdi,et al.  Investigation of a new solar greenhouse drying system for peppers , 2017 .

[21]  Emad A. Almuhanna,et al.  Utilization of a Solar Greenhouse as a Solar Dryer for Drying Dates under the Climatic Conditions of the Eastern Province of Saudi Arabia , 2011 .

[22]  Christopher Kanali,et al.  THIN LAYER DRYING KINETICS OF AMARANTH (Amaranthus cruentus) GRAINS IN A NATURAL CONVECTION SOLAR TENT DRYER , 2010 .

[23]  Marcus Nagle,et al.  Experimental and simulated performance of a PV-ventilated solar greenhouse dryer for drying of peeled longan and banana , 2009 .

[24]  G. N. Tiwari,et al.  Evaluation of convective heat transfer coefficient in crop drying under open sun drying conditions , 2001 .

[25]  Anil Kumar,et al.  PREDICTION OF THE RATE OF MOISTURE EVAPORATION FROM JAGGERY IN GREENHOUSE DRYING USING THE FUZZY LOGIC , 2015 .

[26]  C. Ertekin,et al.  Mathematical modeling of thin layer solar drying of sultana grapes , 2001 .

[27]  Om Prakash,et al.  Historical Review and Recent Trends in Solar Drying Systems , 2013 .

[28]  Dilip Jain,et al.  Effect of greenhouse on crop drying under natural and forced convection I: Evaluation of convective mass transfer coefficient , 2004 .

[29]  Anil Kumar,et al.  Effect of shape and size on convective mass transfer coefficient during greenhouse drying (GHD) of Jaggery , 2006 .

[30]  G. N. Tiwari,et al.  Evaluation of convective mass transfer coefficient during drying of jaggery , 2004 .

[31]  P. Barnwal,et al.  Grape drying by using hybrid photovoltaic-thermal (PV/T) greenhouse dryer: An experimental study , 2008 .

[32]  G. N. Tiwari,et al.  Thermal modeling of a natural convection greenhouse drying system for jaggery : An experimental validation , 2006 .

[33]  Om Prakash,et al.  ANFIS modelling of a natural convection greenhouse drying system for jaggery: an experimental validation , 2014 .

[34]  P. Chauhan,et al.  Performance analysis of greenhouse dryer by using insulated north-wall under natural convection mode , 2016 .

[35]  M. Eswaramoorthy,et al.  An Experimental Analysis of a Solar Greenhouse Drier: Computational Fluid Dynamics (CFD) Validation , 2013 .

[36]  R. Sahdev.  Open Sun and Greenhouse Drying of Agricultural and Food Products: A Review , 2014 .

[37]  N. Bekkioui,et al.  Solar drying of pine lumber: Verification of a mathematical model , 2011 .

[38]  Serm Janjai,et al.  Experimental performance and modeling of a greenhouse solar dryer for drying macadamia nuts , 2014 .

[39]  B. K. Bala,et al.  Optimisation of solar tunnel drier for drying of chilli without color loss , 2005 .

[40]  Mahesh Kumar,et al.  Effect of Size on the Convective Heat and Mass Transfer Coefficients during Natural Convection Greenhouse Drying of Khoa-A Heat Desiccated Milk Product , 2014 .

[41]  Serm Janjai,et al.  A greenhouse type solar dryer for small-scale dried food industries: Development and dissemination , 2011 .

[42]  B. K. Bala,et al.  EXPERIMENTAL AND NEURAL NETWORK PREDICTION OF THE PERFORMANCE OF A SOLAR TUNNEL DRIER FOR DRYING JACKFRUIT BULBS AND LEATHER , 2005 .

[43]  I. T. Toğrul,et al.  Modelling of thin layer drying kinetics of some fruits under open-air sun drying process , 2004 .

[44]  S. Iniyan,et al.  A review of solar drying technologies , 2012 .

[45]  Om Prakash,et al.  Solar greenhouse drying: A review , 2014 .

[46]  A. Paice,et al.  Mathematical modelling and optimal control of solar dryers , 1997 .

[47]  Ahmet Can,et al.  Drying kinetics of pumpkinseeds , 2000 .

[48]  G. N. Tiwari,et al.  Role of Greenhouse Technology in Agricultural Engineering , 2006 .

[49]  R. L. Sawhney,et al.  Design, development and performance testing of a new natural convection solar dryer , 2002 .

[50]  Arbind Kumar,et al.  Review on various modelling techniques for the solar dryers , 2016 .

[51]  K. Saçılık,et al.  Mathematical modelling of solar tunnel drying of thin layer organic tomato , 2006 .

[52]  Michael Frankfurter,et al.  Numerical Recipes In C The Art Of Scientific Computing , 2016 .

[53]  Serm Janjai,et al.  Solar Drying Technology , 2012, Food Engineering Reviews.

[54]  Umphisak Teeboonma,et al.  Investigation of Temperature and Air Flow inside Para Rubber Greenhouse Solar Dryer Incline Roof Type by Using CFD Technique , 2014 .

[55]  Can Ertekin,et al.  Drying of eggplant and selection of a suitable thin layer drying model , 2004 .