|
in
| Title : |
Development and testing of low cost solar dryer for drying agriculture commodities |
| Material Type: |
printed text |
| Authors: |
Shreemat Shrestha, Author ; Rabi G. Rasaily, Author |
| Pagination: |
11-14 p. |
| Languages : |
English (eng) |
| Keywords: |
Low cost mud dryer, mushroom drying, solar dryer |
| Abstract: |
Open solar drying has been traditionally practiced in drying agricultural commodities in Nepal. Open sun drying are prone to the contamination of dust, insects etc. To address these problems, different types of cabinet type solar dryers are developed but are not adopted by Nepalese farmers due to high cost and unavailability of the construction materials in the remote areas. To overcome these problems the low cost solar dryer was developed and comparative testing of it with wooden and metallic (galvanized sheet (GI) sheet fabricated) solar dryer was performed for mushroom drying in Agricultural Engineering Division (AED), Khumaltar. The new model of low cost solar dryer is constructed by using the local construction material mud brick/ stone mud mortar and can be constructed of different size according to the requirement of the farmer. Only the external material used is transparent ultra violet (UV) protected polythene sheet, black board paint and GI net The cost of low cost solar dryer of size 0.8- x I ..S-m is about Rs500 where the wooden and metallic solar dryer of similar size costs about Rs2500 and 6000 respectively. The capacity of the low cost solar dryer of size 0.8- x 1.5-m is of 3 kg of mushroom drying per batch. The duration of drying of mushroom to MC level below I0% is attained within 2 days of drying. The moisture curve of the mushroom in the low cost solar dryer, metallic dryer and the wooden dryer indicated that there is no significant difference at high and low moisture level. The temperature curve of the solar dryers indicated that the rate of increase of temperature of mud dryer is less in the initial 2 hours and after this, it is found to be more than the wooden dryer. The low cost solar dryer can be one of the appropriate options in drying the agricultural commodities in the remote areas due to its performance comparable with the modem solar dryers, and low cost of construction. |
| Link for e-copy: |
http://elibrary.narc.gov.np/?r=848 |
in
Development and testing of low cost solar dryer for drying agriculture commodities [printed text] / Shreemat Shrestha, Author ; Rabi G. Rasaily, Author . - [s.d.] . - 11-14 p. Languages : English ( eng) | Keywords: |
Low cost mud dryer, mushroom drying, solar dryer |
| Abstract: |
Open solar drying has been traditionally practiced in drying agricultural commodities in Nepal. Open sun drying are prone to the contamination of dust, insects etc. To address these problems, different types of cabinet type solar dryers are developed but are not adopted by Nepalese farmers due to high cost and unavailability of the construction materials in the remote areas. To overcome these problems the low cost solar dryer was developed and comparative testing of it with wooden and metallic (galvanized sheet (GI) sheet fabricated) solar dryer was performed for mushroom drying in Agricultural Engineering Division (AED), Khumaltar. The new model of low cost solar dryer is constructed by using the local construction material mud brick/ stone mud mortar and can be constructed of different size according to the requirement of the farmer. Only the external material used is transparent ultra violet (UV) protected polythene sheet, black board paint and GI net The cost of low cost solar dryer of size 0.8- x I ..S-m is about Rs500 where the wooden and metallic solar dryer of similar size costs about Rs2500 and 6000 respectively. The capacity of the low cost solar dryer of size 0.8- x 1.5-m is of 3 kg of mushroom drying per batch. The duration of drying of mushroom to MC level below I0% is attained within 2 days of drying. The moisture curve of the mushroom in the low cost solar dryer, metallic dryer and the wooden dryer indicated that there is no significant difference at high and low moisture level. The temperature curve of the solar dryers indicated that the rate of increase of temperature of mud dryer is less in the initial 2 hours and after this, it is found to be more than the wooden dryer. The low cost solar dryer can be one of the appropriate options in drying the agricultural commodities in the remote areas due to its performance comparable with the modem solar dryers, and low cost of construction. |
| Link for e-copy: |
http://elibrary.narc.gov.np/?r=848 |
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