Development and Evaluation of a Continuous Type Tamarind Deseeder
Razvoj i ispitivanje kontinuiranog tipa separatora semena mahunarki
Pregled/ Otvaranje
Autor
Karthickumar, Paramasivan
Sundara Pandian, Narasingam Karpoora
Rajkumar, Perumal
Surendrakumar, Allimuthu
Balakrishnan, Murugesan
Ključne reči
tamarind deseederseed separation unit
wooden roller
deseeding efficiency
separator semena
separatorska jedinica
drveni valjak
efikasnost separacije
Metadata
Prikaz svih podataka o dokumentuApstrakt
A continuous type tamarind deseeder with a capacity of 75 kg•h-1 has been fabricated and evaluated at the Department of Agricultural Process Engineering, Tamil Nadu Agricultural University, Coimbatore, India. The machine consists of a seed separation unit and separate outlets for the seeds and deseeded fruits. In the seed separation unit, the fruits were subjected to impact and simultaneous shearing force by pegs mounted on the wooden roller to break open the fruit and to push the seeds out of the oblong sieve. After deseeding, the seeds and fruit pulp were collected separately through their respective outlets. The performance of the developed machine was evaluated based on deseeding efficiency. Evaluation was done by conducting experiments at different operating conditions including different moisture content of tamarind fruit (20.0, 22.5 and 25.0% on dry basis) and varying wooden roller speed (2.5, 3.4 and 4.2 m•s-1), feed rate (45, 60 and 75 kg•h-1) and horizontal clearance (14, 16 and 18 mm). The test results of the machine showed that a maximum deseeding efficiency of 89.15% was found at 22.5 percent moisture content on dry basis, with the wooden roller speed of 3.4 m•s-1, feed rate of 45 kg•h-1 and 16 mm horizontal clearance. As compared to existing manual methods of deseeding, the continuous type tamarind deseeder unit recorded 93.34 % saving in time and 74.9 % saving in operation cost. Kontinuirani tip separatora semena iz mahuna kapaciteta 75 kg•h-1 konstruisan je i ispitivan u Institutu za inženjering prehrambenih i poljoprivrednih procesa Poljoprivrednog univerziteta Tamil Nadu, Coimbatore, India. Mašina se sastoji od separatorske jedinice i izlaza za izdvojeno seme i prazne mahune. U separatorskoj jedinici mahune su istovremeno izlagane silama udara i sečenja od klinova postavljenih na drveni valjak, koji lome i otvaraju mahune i istovremeno guraju seme napolje iz duguljastog sita. Posle izdvajanje semena, seme i prazne mahune se skupljaju odvojeno iz razdvojenih izlaznih otvora. Performanse razvijene mašine su ocenjivane na osnovu efikasnosti separacije. Pri ispitivanju su izvođeni ogledi u različitim uslovima rada, uključujući različite: vlažnosti plodova (20.0, 22.5 i 25.0%), brzine valjka (2.5, 3.4 i 4.2 m•s-1), protoke mase (45, 60 i 75 kg•h-1) i horizontalne zazore (14, 16 i 18 mm). Rezultati ogleda su pokazali da je mašina postigla maksimalnu efikasnost separacije od 89.15% pri: vlažnosti od 22.5%, brzini valjka od 3.4 m•s-1, protoku mase od 45 kg•h-1 i zazoru od 16 mm. U poređenju sa postojećim ručnim postupcima separacije, kontinuirani tip separatora postigao je skraćenje radnog vremena od 93.34% i smanjenje troškova rada od 74.9%.