Program PKM ini bertujuan untuk meningkatkan kualitas dan kuantitas produksi sambal di Dusun Leses Kabupaten Malang. Sambal merupakan salah satu unsur khas hidangan Indonesia. Ada bermacam-macam variasi sambal yang berasal dari berbagai daerah. Masyarakat kota Malang yang didominasi remaja dan mahasiswa baik dalam kota maupun luar kota Malang rata-rata menyukai makanan dengan citarasa pedas atau menggunakan sambal. Permintaan pasar akan sambal kemasan di kawasan ini semakin meningkat. Lokasi mitra Dapur Uni Amel berada di RT 04 / RW 09 Dusun Leses, Kelurahan Ngijo, Kecamatan Karangploso, Kabupaten Malang. UKM Dapur Uni Amel yang dimiliki oleh Ibu Darnety ini telah berproduksi sejak tahun 2017. Mitra UKM telah berusaha untuk mengembangkan produksinya dengan menambah varian jenis sambal. Hingga saat ini ada 5 macam varian rasa yang berhasil diproduksi yaitu: Sambal hijau, Sambal merah, Sambal bawang, Sambal teri dan Sambal pencit. Beberapa kendala utama yang dapat diungkapkan disini adalah kurangnya modal pembuatan produksi sambal, sehingga produksi dilakukan dengan skala kecil yang menyebabkan cash flow tidak terjadi dengan baik. Proses produksi pada mitra masih menggunakan alat-alat masak yang sederhana dan masih manual menggunakan cobek, yang tentunya kesulitan jika pesanan yang masuk banyak. Ada beberapa tahap dalam proses produk pembuatan sambal, dikarenakan ada beberapa varian rasa dan tiap varian sambal memiliki proses yang berbeda. Penyelesaian masalah yang dialami mitra melalui pelatihan peningkatan kualitas sistem pengelolaan keuangan UKM, pelatihan manajemen organisasi, pengadaan alat produksi yaitu mesin sealer plastik dan mesin penggiling sambal.
In a power plant unit whose main fuel is coal, there is generally use a belt conveyor installation. This conveyor belt serves to supply coal from the crusher unit to the combustion chamber of the power generation unit. In this study, we discuss a case where the installation of a belt conveyor which was initially only one line was then made a new branch that supplies coal to other power generating units. Equitable capacity distribution and continuity of coal distribution are the main focus of this study. Therefore, a design of automatic control system of coal flow divider on belt conveyor installation was designed. The working principle of this coal flow splitting system is to control the movement of the straight blade plough that directs the flow of coal to each unit at the certain time and continuously. Straight blade plough in the form of steel metal plate with a thickness of about 10 millimeters in which one end is connected to the end of the pneumatic cylinder. Automatic control system of coal flow divider in belt conveyor installation designed using CX-Programmer and CX-Designer applications. CX-Programmer serves to create automatic control logic concepts. While the CX-designer functions to create a Human Machine Interface (HMI), making it easier for operators to control the course of the coal supply process. The results of this study are in the form of control logic lines that can be applied to Programmable Logic Control (PLC) device and Human Machine Interface (HMI) equipment.
The inconsistency of the wind flow considered as one of the factors which tend to decrease the performance of the wind turbine. This paper proposes a further analysis of the initial rotation characteristic of a hybrid Savonius - Darrieus wind turbine. The addition of the Darrieus blade intends to increase the aerodynamic stability of the overlapping Savonius turbine. This study implements 2D CFD transient analysis using the 6DOF methods in 0<sup>0</sup>, 30<sup>0</sup>, 60<sup>0</sup>, and 90<sup>0</sup> Darrieus blade position along with 2 m/s, 4 m/s, and 6 m/s wind speed variations. The results of the aerodynamic analysis show that the location of the Darrieus 30<sup>0</sup> turbine provides the greatest initial repulsion, especially when the turbine rotation is above 90<sup>0</sup>, the position of the Darrieus blade can provide additional impulse force when the Savonius turbine tends to be passive. This effect occurs more significant at higher wind speeds. Savonius with 3-blade modification has a more stable level of force distribution than the 2-blade modification, although the value is smaller. This shows that the 3-blade Savonius provide a higher stability of angular velocity development.
This research proposes a new model of overlap and helix blade shape. The overlap shape of the blades gives room to the air flow shortly after pounding the blades. Air flow direction is strived to be able to push the next blade so that the process of the turbine blade rotation becomes more effective. While the helix model is expected to produce a more efficient turbine rotation due to its multilevel shape. The wind speeds tested were 2 m / s, 4 m / s, and 6 m / s. Turbine speed rotation data retrieval is carried out at each additional time. The overlap blade has a greater angular velocity value of 9.4 rad / s at 2 m / s wind speed, 21.9 rad / s at 4 m / s wind speed, and 29.8 rad / s at 6 m / s wind speed.Turbines with multilevel helix blades have a higher level of stability compared to overlap blades. This is because there are two levels of turbine blades which have an angle difference of 600 which can receive more stable wind collisions. However, due to the smaller cross-sectional area of the helix blade turbine (ie 50% of the overlap blade) the effective impact area on the blade is also getting smaller. So that the energy that can be converted is also relatively smaller than the overlapping blade.
The potential of wind as an energy resource is still not widely used by the community through simple technology to produce electrical power. One simple technology is to use PVC pipe as the basic material for making wind turbine propellers. The purpose of this study was to determine the effect of variations in angle of attack and wind speed on the performance of a PVC pipe propeller wind turbine with an Elbow Tip. Material of blade propeller made by PVC pipe are slice half and twist from hub until tip with 90 degree of rotation. Dimension of width blade wider on the hub (3/4 of circular) and smaller on the tip (1/7 of circular). Face of blade on the hub side facing wind direction (axial) and face of blade on the tip side facing tangential direction or opposite with rotation. On the tip side installed the slice elbow with fit tip blade width. The propeller using PVC pipe with elbow tip is the important part of new design which has been test with CFD simulation and wind tunnel research with best result performance. This research uses CFD simulation and experimental methods with a comprehensive study of the aerodynamic behaviour characteristics in and around the turbine rotor. The results of the CFD simulation was found that the phenomenon positioning of momentum force were place on the outer radius due to addition elbow tip cause increasing the torque. By using elbow tip on blade propeller PVC Pipe Horizontal Axis Wind Turbine with 15° and 30° angle of attack could increasing torque about 200 % than without the elbow tip. Beside, using 45° angle of attack although additional with elbow tip could not increasing the torque when the wind speed on 7 m/s. The result of this research is important to know by public who interest build small grid wind turbine with low cost and easy manufacturing.
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