1.Judul: Designing Soybean Peel Separator Container For Decreasing The Intensity Of Skin Contact In Tempeh Industries

Abstract: Tempeh is a typical food of Indonesia which consumed by people in the world. Tempeh is a food-based from fermented soybean by Rhizopus sp. which most of the workstation in the production floors are using human power. There are twelve core stages in tempeh production, one of the processes is separating the peel of soybean that worked fully by human energy. In Indonesia, this process using hands touching which make the cleanliness of tempeh is not maintained. The use of the hand for the production process can be affected to the tempeh quality, and bring the pathogen to the produced food. The effect of this process is the product will not hygiene and need a lot of cycle time. After researcher does analyze the user needs, most the tempeh industries needs a design of soybean peel separator that can reduce the intensity of skin contact. This research is done by reverse engineering method which has an objective to redesign an existing product base on the user needs. After prototyping, this container can eliminate the human’s skin contact, reduce 39% of cycle time and reduce the use of water until 42%. With this modification container, the skin contact on tempeh production can be removed and the cleanliness from pathogen will be guaranteed.

Keywords: Hygiene, food, skin contact, reverse engineering

Link konferensi: https://foodsecurityconference.co/wp-content/uploads/2018/10/Program-FOOD-QUALSS-2018-2.pdf

Link paper: https://www.researchgate.net/publication/336141197_DESIGNING_SOYBEAN_PEEL_SEPARATOR_CONTAINER_FOR_DECREASING_THE_INTENSITY_OF_SKIN_CONTACT_IN_TEMPEH_INDUSTRIES#fullTextFileContent

2.Judul : Design Hammer Mill Using Discrete Eelement Modeling Method To Improve Smooth Animal Feed

Abstract— Hammer mill is a material size reduction tool because of the continuous collision between the material inserted with a hammer that rotates at high speed. The performance of hammer mill was investigated using discrete element modeling (DEM) through simulation experiment design so that virtual simulation environments could be developed to gain a fundamental understanding of the effect of hammer design on changes in milling results. The simulation model is based on the systematic design of experiment to find out the hammer design that gives the largest response value based on the most significant factor. The simulation results the loss energy (J) value of the coffee husks particles during a collision with a hammer that describing the occurrence of particle breakage within the hammer mill. The aim of study as to determine the new hammer design in order to increase the fineness of coffee husks. The study that has been run using DEM method and experimental design system concludes
hammer design with combination of factor A and C which is adding blade and adding thickness gives the highest average
response value is 826.88 J. The factor that increase the thickness becomes the most significant factor to the particles
breakage of coffee husks with effect size of 356.41 J. Effect Interaction between factors also taken into account to know the
influence of a factor on the existence of other factors in generating the response value.

Keywords— collision, hammer mill, hammer, discrete element method (DEM), design of experiment (DOE), energy loss

Link : https://cdndata.telkomuniversity.ac.id/research/z1582808473dfbdaef4f821a27d88d2945d074a39cc.pdf

Link paper: https://cdndata.telkomuniversity.ac.id/research/z15828084737841feda023298ab0636617aea87f71d.pdf