ABSTRACT The Serindit V-2 is a racing plane that is currently take off using the hand launch method. Take off using the hand launch method has many weaknesses, namely a low level of safety for launcher operator, the angle of ejection is not fixed and the resulting launcher speed is inconsistent because it depends on the force exerted by the launcher operator. This study aims to produce the…
ABSTRACT In the SMAW welding process there are various types of electrodes with various diameter sizes, besides that in the process various current strengths can be used. All this is done to adjust the plate thickness and type of steel, as well as to reduce the main problem in the welding process, namely the occurrence of welding defects. The purpose of this study was to analyze and identify w…
The culinary industry in Indonesia, which continues to grow, will affect the demand for food raw materials, such as grated coconut for coconut milk, grated sweet potato for cakes. The process of squeezing by hand will drain energy and time, on the contrary using sophisticated machines on the market today have high prices and capacities that are not suitable for UMKM, Therefore, technology is de…
Quadrotor Fixed Wing Hybrid UAV (QFHUAV) is a type of UAV that has vertical take-off and landing capabilities by combining the concepts of fixed wing and quadrotor types. From existing research, there is still a shortage of QFHUAV vehicles, namely minimal flight time. This study aims to develop a QFHUAV vehicle that has aerodynamic characteristics and has better power efficiency and an airframe…
Design is a process that aims to analyze, improve and compile a system, both physical and non-physical systems that are optimal for the future by utilizing existing information. In general, design can be defined as a plan to meet human needs. Old problems that have not been resolved or new problems that have not been thoroughly analyzed, let alone found a solution. 3D printing or additive manuf…
Friction stir welding was introduced by The Welding Institute of United Kingdom 1991 as a solid connection technique and the application of friction stir welding can be applied to polymer materials. One of the parameters that affect the quality of the connection is the variation of the rotational speed of the friction welding stirrer which can result in different waiting time durations. The aim…
Efforts are being made to reduce dependence on fuel by substituting with vegetable and animal fuels. Biodiesel is one of the vegetable and animal oils that has been used as a substitute for diesel oil because it has similar properties to diesel oil and is composed of monoalkyl esters of long chain fatty acids. However, the direct use of 100% biodiesel as fuel will reduce the performance of the …
Friction Stir Welding was first introduced by The Welding Institute of UK 1991 as a solid joint technique. Application of Friction Stir Welding on polymeric materials and states that FSW technology can be applied to polymeric materials. The purpose of this study is to analyze the results of temperature measurements on the geometric angle of the pin tool on friction stir welding, then validated …
Biodiesel is an alternative fuel that is used as a substitute for depleting fossil fuels. Biodiesel has different characteristics than fossil fuels, so changes to the engine are needed to improve engine performance. One way to improve engine performance is to vary the fuel filter mesh with sizes of 2, 10, and 30 microns. This study uses B40 and B50 fuel with engine rpm of 2500 kg/m2, 5000 kg/m2…
Along with the increasing consumption of domestic diesel fuel oil with an average consumption rate of 5% per year and production of only 75% of the total demand, the reserves of fuel are getting depleted from year to year. There are many alternatives that can be done to overcome the reduced availability of petroleum. One of them is to use a mixture of vegetable oils into pure diesel, which is c…
This study aims to optimize the machining parameters in the production process of the Yamaha motorcycle brake piston master cylinder for finishing work and to determine the effect on surface roughness. The method used is the Taguchi method and simulation assisted by Mastercam 2018 software (CNC lathe). Machining parameters were varied based on the Taguchi method, each of which applied a machini…
ABSTRACT Biomass is a renewable fuel and generally comes from living things (non-fossil) in which energy is stored. In theory, Indonesia's biomass energy potential is estimated at around 49,810 MW. This figure is assumed on the basis of the energy content of the annual production of about 200 million tonnes of biomass from agricultural, forestry, plantation and municipal solid waste residues. …
ABSTRACT Definition of Centrifugation or centrifugation technique is a mixture separation technique that is carried out by utilizing centrifugal force. This technique is most often used when dealing with the field of biochemistry, particularly in the separation of macromolecules or colloids from other liquids. In theory, centrifugation utilizes centrifugal force where this centrifugal force is…
ABSTRACT Definition of Centrifugation or centrifugation technique is a mixture separation technique that is carried out by utilizing centrifugal force. This technique is most often used when dealing with the field of biochemistry, particularly in the separation of macromolecules or colloids from other liquids. In theory, centrifugation utilizes centrifugal force where this centrifugal force is…
ABSTRAK Composite material is a new type of engineered material consisting of two or more materials where the properties of each material are different from one another. Composites are composed of 2 main materials, namely the matrix which is the phase in the composite, has the largest part or volume fraction in the composite which functions as an adhesive and protector and reinforcement which …
ABSTRACT Sanding work is a step that is carried out before entering the final process to remove defects, shape and smooth the surface of objects. The main purpose of making this belt sanding machine is to help and simplify the sanding process. The process of making this belt sanding machine there are several processes that are carried out so that the manufacture of the belt sanding machine can …
ABSTRACT Sanding work is a step that is carried out before entering the final process to remove defects, shape and smooth the surface of objects. The main purpose of making this belt sanding machine is to help and simplify the sanding process. The process of making this belt sanding machine there are several processes that are carried out so that the manufacture of the belt sanding machine can …
ABSTRACT Biomass is a renewable fuel and generally comes from living things (non-fossil) in which energy is stored. In theory, Indonesia's biomass energy potential is estimated at around 49,810 MW. This figure is assumed on the basis of the energy content of the annual production of about 200 million tonnes of biomass from agricultural, forestry, plantation and municipal solid waste residues. …
Faculty of Engineering, Riau University Abstract Hand grinding machine tool is a tool that is useful for the process of cutting or smoothing metal objects, wood, concrete, ceramics, and others. This hand grinding machine tool will be modified using a frame that is useful as a vertical hand grinding holder. Based on the driving force this tool is moved manually. The frame that will be the hand…
Abstract Hand grinding machine tool is a tool that is useful for the process of cutting or smoothing metal objects, wood, concrete, ceramics, and others. This hand grinding machine tool will be modified using a frame that is useful as a vertical hand grinding holder. Based on the driving force this tool is moved manually. The frame that will be the hand grinding holder is made to facilitate th…