ABSTRACT Screw conveyor is a type of conveyor often used to move semi-solid materials. This examination will analyze the stress on the screw conveyor type 12S624R by modifying the length of the shaft. According to the Screw Conveyor Catalog & Engineering Manual, the length of each screw shaft for a screw conveyor with a diameter of 0,3 meters is about 3,75 meters, if the screw conveyor need le…
ABSTRACT Leaf springs as a component of the suspension system function to absorb shocks from the road and wheel vibrations so that they are not transmitted to the vehicle body directly and increase the tire's grip on the road surface and support the overall weight of the vehicle, both the weight of the body, engine, passengers, frame and other loads supported on it. The old leaf spring used wi…
ABSTRACT Main object of this research is to perform experimental test on a clothes dryer using an air conditioning system. The air conditioning system varied into three type which is split type, windows type and portable type. This research has to be done using pre heat for 30 minutes before examination started. Examination was conducted to obtain the performance parameters of SMER, SEC and Dr…
The objectives of this research are to analyze the energy and exergy of the 4x6 MW Gas Power Plant which has been operated by BOB PT. Bumi Siak Pusako - Pertamina Hulu for 10 years to run production operations in two main fields, namely Zamrud and Pedada which require high energy consumption. The decline in oil production and the large operating costs at CPP Block BOB PT. Bumi Siak Pusako …
ABSTRACT The development of renewable and environmentally friendly alternative energy needs to be carried out in order to fulfill energy needs and the survival of plants, animals and humans. One of the energy sources that can be used to meet these needs is solar energy. In solar panels, the heat generated from solar radiation is utilized through photovoltaic to generate electricity. Unfortunat…
ABSTRACT UAV is a technology of aerial vehicle without a pilot occupied within the body. Serindit V-2 is a fixed wing UAV that was designed to fly and accelerate rapidly. Most of fixed wing UAV lands by belly landing method. The bottom part of the fuselage experience direct impact with landing runways, and resulting to high risk of fracture. Besides belly landing, fixed wings were commonly fou…
In this study, a warehousing sy9stem management design was developed using the kanban barcode method to make it easier for operators to recap data on the entry and exit of goods ordered for the procurement of car spare parts at Toko Jaya Utama Muda. The Warehouse Management System design that has been implemented using the kanban barcode method consists of several processes, including: 1) Desig…
ABSTRACT Bolts are one of the machinery elements which are used in joining. The failure that often occurs in bolted joints is looseness caused by dynamics loads. This study aims to detect bolt looseness using sound signal by analyzing the dynamic characteristics of bolt connection, namely natural frequency, damping ratio and bolt looseness position. The research method which is used Structural…
ABSTRACT The weight on the vehicle has a sizable effect on the efficiency of the motor as the motor works harder. The design of the vehicle shape is an aspect that is very concerned with optimizing the engine power generated by the engine through the process of burning fuel into thrust, traction and stability of the vehicle when moving at a certain speed. The chassis design process starts from…
ABSTRACT The development of Non-Asbestos Organic (NAO) brake pads recently is increasity due to environmental trialdly issue. To produce a proficient brake pad involves many process parameters, therefore it requires a large quantities of samples and consumes times. This research aims to obtain optimal process parameters on hardness and porosity using taguchi. Design of experiment were mad…
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…