ABSTRACT Sandy clay soil is a type commonly found in coastal areas and often exhibits low shear strength, thus necessitating a study on its mechanical behavior. This research aims to analyze the effect of varying bentonite and kaolin ratios on the shear strength parameters of the soil, namely cohesion (c) and internal friction angle (φ), in sandy clay soil mixtures. Soil samples were prep…
ABSTRACT The Mandau River is a tributary of the Siak River and plays a vital role in providing clean water, supporting irrigation, and sustaining the ecosystem in the Bengkalis and Siak regencies. This study aims to analyze the dependable flow (Q90) of the Mandau River at the Mandau River Bridge point as a basis for sustainable water resources planning. The method used is the Mock method, …
ABSTRACT Excessive use of oil in fried foods can have a negative impact on health, so a tool is needed that can reduce oil levels effectively. This study aims to develop a cooking oil drainer (spinner) with the addition of speed control and time control features (timer), and uses the Analytical Hierarchy Process (AHP) method as the basis for design decision making. The AHP process involved thr…
ABSTRACT The bending process of galvanized pipes often causes cross-sectional deformation, one of which is ovality—a change in the pipe's cross-sectional shape from circular to oval. This deformation can affect the strength and reliability of piping systems. This study aims to analyze the effect of wax filling inside galvanized pipes prior to the bending process on the quality of the bending…
ABSTRACT This research addresses the critical need for boat hull materials capable of withstanding the acidic and chemically aggressive peatwaters prevalent in Riau Province, Indonesia. The study evaluates the impact resistance of composites made from thorny pandan fiber (Pandanus tectorius) embedded in a recycled PET (Polyethylene Terephthalate) matrix derived from used plastic bottles. Thorn…
ABSTRACT Merpati Sakti Street in Pekanbaru City has suffered damage due to high traffic volume and poor drainage conditions. This study aims to analyze the flexible pavement thickness design using the Bina Marga 2024 Method to improve road quality and service life. The analysis considers traffic factors, cumulative equivalent single axle load (CESAL), and subgrade bearing capacity tested using…
ABSTRACT Road pavement is an important element that supports an efficient and safe transportation system, especially in the campus environment. Universitas Riau has experienced significant development in terms of academic activities and infrastructure, so that the addition of a new road network is needed to improve and facilitate accessibility to the campus. The purpose of this study is to pla…
ABSTRACT Bakuok Lake, located in Aursati Village, Tambang Subdistrict, Kampar Regency, is an oxbow lake formed naturally from the Kampar River flow. To address the threats of erosion and landslides along the lakebanks, as well as to support conservation and flood control functions, the government implemented a revitalization project—one component of which includes the construction of gabions…
ABSTRACT Polymer materials commonly used for car bumpers are thermoplastics, because they are lightweight, reduce vehicle weight without sacrificing safety, are able to withstand impacts well, are easy to shape, flexible or not rigid, easy to repair, durable and cheaper. So to get a flexible bumper material, Polyethylene material is used and to increase strength, TKKS fiber is used as a reinfo…
ABSTRACT This study aims to design a screw-driven press tool as an alternative pressing mechanism for the Production Technology Laboratory at Universitas Riau. The use of a screw system in the press provides several advantages, including better control of pressing force, improved energy efficiency, and lower production costs compared to hydraulic or pneumatic systems. The design process was ca…
ABSTRACT In the modern industrial era that prioritizes resource efficiency and environmental sustainability, the use of recycled materials is one of the important solutions in the manufacturing process. Aluminum, especially from used cans, is a material that is easily recycled and is widely used in various industrial sectors. This study aims to determine the effect of cutting variables on the …
ABSTRACT This research aims to design the layout of a tapioca flour factory facility at the Small and Medium Industry Center (SIKM) in Pekanbaru with a capacity of 10 tons per day, using the Systematic Layout Planning (SLP) method and the Blocplan algorithm. In this research, the layout design of the factory facility is carried out by optimizing material flow, space efficiency, and minimizing …
ABSTRACT Motorcycles are vehicles commonly used by the public to help with daily activities in achieving certain goals. In addition to motorcycles, three-wheeled motor vehicles are also used, especially for the needs of transporting goods. The advantages of three-wheeled vehicles in transporting goods make this vehicle unaffordable for all groups, including small and medium-sized businesses. M…
ABSTRACT This study aims to design and develop an air blast freezing system with a capacity of 25 kg, and to compare the design results with experimental data. The main focus of the research is to increase the cooling system’s capacity to meet the demands of the cold chain in the storage of marine catch, while maintaining product temperatures consistently between -18 °C and -25 °C. The des…
ABSTRACT Pumps are used to transfer liquid fluids from high pressure to lower pressure. Pumps are used as auxiliary equipment for water supply in production processes. The use of pumps by PT. PLN Nusantara Power UP Tenayan in supporting the process includes, among other things, cooling turbines through a closed cooling system using demineralized water. The operation of the pumps must always be…
ABSTRACT The growing demand for environmentally friendly and sustainable lubricants has driven the development of biolubricants derived from vegetable oils as alternatives to conventional mineral-based lubricants, which are known to be toxic and non-biodegradable. Indonesia holds significant potential for producing palm oil-based biolubricants due to its abundant palm oil resources. However, c…
ABSTRACT Refrigeration with blast freezer is very important to maintain the quality and nutritional value of food by slowing down spoilage, but many air blast freezing systems still use less environmentally friendly refrigerants, have limited cooling capacity, and imprecise temperature control so that there is a temperature deviation of ±4 ℃ in shrimp due to the compressor turning on and of…
ABSTRACT This study aims to design and develop a Smart Food Container (SFC) utilizing a Thermoelectric Cooler and Heat Pipe system integrated with the Internet of Things (IoT). The thermoelectric cooler used is the TEC2-25408, which is coupled with a copper heat pipe using water as the working fluid. The heat pipe efficiently absorbs heat from the hot side of the TEC, helping to maintain stabl…
ABSTRACT Energy is a crucial element in every aspect of human life. With the high global dependence on fossil fuels as the main source of energy, challenges arise due to the depletion of this non-renewable resource. Vortex turbines are one of the turbines that have the potential to produce clean electricity. Vortex turbines work by converting the kinetic energy of water into mechanical energy.…
ABSTRACT Analysis of the strength of the chassis structure and the large-sized electric bus body frame is needed to determine the ability to withstand various loads. The purpose of this study is to coMPare the magnitude of the total deformation, equivalent stress (von misses), and safety factor between the original chassis materials, namely (SS400 & Aluminum 6061) with alternative materials (S…