scholarly journals Design and development of natural convective solar dryer

2021 ◽  
Vol 11 (4) ◽  
pp. 144-150
Author(s):  
Baibhaw Kumar ◽  
L. Gábor Szepesi ◽  
Zoltán Szamosi
Keyword(s):  
Heat Source ◽  
Developing Nations ◽  
External Heat ◽  
Agricultural Products ◽  
Wood Chips ◽  
Solar Drying ◽  
External Heat Source ◽  
Solar Dryer ◽  
Drying Behavior ◽  
Drying Efficiency

Solar drying has emerged as a potential drying solution for agricultural products in many developing nations. The drying behavior of the product to be dried depends on many parameters of the dryer. A box-type natural convective solar dryer was developed to analyze the drying performance of Wood chips. Experiments revealed promising drying results with drying efficiency. The design of the dryer could further be enhanced by hybridization with an external heat source.

scholarly journals Solar drying of jack fruit almonds

2011 ◽  
Vol 31 (6) ◽  
pp. 1150-1161 ◽  
Author(s):  
Alexandre J. de M Queiroz ◽  
Hermeval J Dantas ◽  
Rossana M. F. de Figueirêdo ◽  
Karla dos S Melo
Keyword(s):  
Solar Energy ◽  
Heat Source ◽  
The Sun ◽  
Solar Drying ◽  
Drying Time ◽  
Solar Dryer

Dryers heated by solar energy have been constructed and used in drying whole and half jack fruit almonds. The samples were dried during the day in direct sun and in the conventional solar dryer prepared for this purpose. Another piece of equipment was built for reception and accumulation of sun energy in a body of water, which was used as a heat source for night drying. The drying with the sun energy was compared with artificial drying. The jack fruit almonds were dried whole, half, with pellicle and without it. The storage of solar energy in water was technically viable for use in night drying. The drying by combining solar dryers in the day and night periods were completed in approximately 35 hours, and were equivalent to artificial drying between 40ºC and 70ºC. Almond cut in half and the pellicle removed reduced the drying time.

Recent advances in solar drying system: A Review

2021 ◽  
Vol 8 (1) ◽  
pp. 1-13
Author(s):  
Amir Abdul Razak ◽  
M A S M Tarminzi ◽  
M A A Azmi ◽  
Y.H Ming ◽  
MRM Akramin ◽  
...  
Keyword(s):  
Agricultural Products ◽  
Photovoltaic System ◽  
Solar Drying ◽  
Nutritional Values ◽  
Electrical Heater ◽  
Advantages And Disadvantages ◽  
System A ◽  
Solar Dryer ◽  
Recent Advances ◽  
Drying System

Research on solar dryer technology proliferates since it reduces the drying period while keeping nutritional values in the agricultural products. This paper presented a review of recent advances in the solar drying system. This review is composed of working principles and classifications of solar dryers. They were classified into two main elements: airflow modes, either passive or active, and the way heat is transferred: direct, indirect, mixed-mode, and hybrid. The hybrid system used several types of elements to supply additional heat in the drying system, as elaborated in this paper, such as the electrical heater, biomass, and photovoltaic system. The advantages and disadvantages of the solar dryer also being discussed in this paper

A NiTiNOL membrane controlled by an external heat source

2012 ◽  
Author(s):  
M. Tecpoyotl-Torres ◽  
R. Cabello-Ruiz ◽  
J. G. Vera-Dimas ◽  
J. Varona ◽  
M. Torres-Cisneros
Keyword(s):  
Heat Source ◽  
External Heat ◽  
External Heat Source
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