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Performance evaluation of screw-press oil expeller using a continuous spiral and decreasing length of pitch of screw CIGR Journal
Jain, Dilip.
Mechanical designing of screw-press for obtaining optimum flow and pressure will be very costly affair. The flow velocity and pressure was predicted using an analytical solution of an isothermal Newtonian flow in finite screw channel. An innovative design of continuous spiral screw was developed for screw-press oil expeller. The flow velocities in the down channel range from 125 to 175 mm s-1 through the length of screw from 150 to 500 mm for the screw drive of 48 rpm. The maximum pressure was built at the end of screw in the range of 9 - 10.57 x 105 Pa. The theoretical pressure was close to the pressure measured during experiments for mustard and sunflower oilseed expelling. The lower screw speed resulted low heat generation and higher oil recovery. 
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Processing; Oil Expeller; Screw Design; Flow Profile; Pressure Profile.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2999
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Characterisation of Small Scale Feed Mills in a Developing Country CIGR Journal
Adetifa, Babatunde Olusola; Okewole, Oyewole Titilope.
There are many cottage scale animal farms in Nigeria that are sustained by the existence of small scale feed mills. The growth of these small scale feed mills is affected by some problems. A study to investigate some of the technical problems in small scale feed mills was conducted using Ibadan, Oyo State, Nigeria as a case study. Ten feed mills were randomly selected and investigated while thirty workers were assessed. The characteristics of the feed mills were investigated in terms of capacity, number of workers, mill operations and equipment used and the problems were investigated by studying four different areas which include; power source; unit operations/equipment; energy utilization pattern and workplace safety/hygiene. A questionnaire was designed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Agricultural Processing; Feed milling; Management Capacity Energy use Grower’s mash Hygiene Layer’s mash Power source Unit operations.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3012
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