ABSTRACT The development of alternative energy sources is currently experiencing rapid growth, particularly in the development of solar power plants (SPPs) that convert solar energy into electricity. As the use of SPPs continues to expand, it is important to understand the factors that influence the efficiency of the system, including temperature fluctuations and partial shading caused by surr…
ABSTRACT This research analyzes the effect of azimuth angle variations on the performance of solar panels on the rooftop solar power generation system (PLTS) at the Faculty of Engineering Building, Riau University. The azimuthal angles tested were 160°, 170°, 180°, and 190° with a fixed tilt angle of 5°, using 4 x 100 Wp solar panels. Data were collected through direct measurements from 0…
ABSTRACT Transformers are an important asset whose health condition needs to be monitored regularly to maintain operational reliability and prevent potential failures. Therefore, regular monitoring and testing of transformer oil and paper insulation (furan) is necessary. This study aims to evaluate health index, estimate remaining life, and detect potential transformer failures. The data param…
ABSTRACT Radar is a vital technology in monitoring and security systems, especially in archipelagic countries like Indonesia. One of its key components is the antenna, which functions to receive and transmit electromagnetic signals. Microstrip antennas are selected for their compact size, efficiency, and ease of integration. This study designs microstrip MIMO array antennas with 2×2, 4×4, 8�…
ABSTRACT Steam is one of the primary energy sources used in the pulp drying process at the Pulp Dryer Department. High steam consumption directly affects production costs and overall energy efficiency in the plant. During the internship period, it was observed that daily steam consumption fluctuated not only due to operational disturbances such as downtime or shutdowns, but also appeared to be…
ABSTRACT Slope stability is essential in ensuring the safety of residential areas, especially in regions with unstable soil conditions. This study aims to design gravity and cantilever type retaining walls as an effort to prevent soil instability at the Derofizha Permata Indrapuri Housing site in Pekanbaru. The methods used include field surveys, collection of soil parameter data, manual c…
ABSTRACT The research aims to analyze the stability of the slope at the Derofizha Permata Indrapuri Pekanbaru Housing site to obtain the Safety Factor value, The safety factor is an important consideration in the stability of slopes or embankments. The stability of a slope is a crucial factor in work that involves excavation, earthworkers, rocks, and mineral materials. The results of this …
The design of pile foundations requires accuracy in determining the soil bearing capacity in accordance with field conditions. This research was conducted to compare the bearing capacity of single pile foundations based on two types of data: Cone Penetration Test (CPT) results and laboratory soil test data. The study was carried out in the Indrapuri Housing area, Pekanbaru City. The analysis me…
ABSTRACT A slope is a land surface that makes a certain angle to the horizontal plane, causing a slope. Slopes that have a crucial slope need to be analyzed for slope stability. The purpose of this study, is a comparative analysis of the slope safety factor between the limit equilibrium method (Limite Equilibrium Method) and the finite element method (Finite Element Method) in terms of the…
ABSTRACT Erosion can reduce the capacity of water channels. So to overcome the problem of erosion in river channels, a river bank protection structure is needed. Therefore, in this study, analyzing the capacity of the river cross-section. This study aims to determine the flow rate of the Kampar River, the depth of the Kampar River in order to determine the river discharge after the constructio…
ABSTRACT Inconsistent quality and reliability of fresh fruit bunch (FFB) supplies posed major challenges for palm oil companies in maintaining efficient and stable operations. Selecting an FFB supplier was essential to ensure sustainable factory operations and maintain production quality standards. This study aimed to determine the most appropriate FFB supplier for PTPN IV Regional III Sei…
ABSTRACT This research investigates the effectiveness of inventory control for raw materials at Mi Tenaga Muda by implementing the Material Requirement Planning (MRP) method. MRP serves as a systematic approach to planning and scheduling material requirements, particularly focusing on wheat flour as the primary raw material in noodle production. The study employed a case study methodology …
ABSTRACT Nuggets are a type of fast food with high protein that can be consumed by everyone. The purpose of study was to obtain the ratio of selected tempeh and young jackfruit in making nuggets tempeh according to SNI 6683-2014. The study was conducted experimentally using a completely randomized design (CRD) consisting of 4 treatments and 4 replications. The treatment in this study used…
ABSTRACT Velva is a frozen dessert made from fruit or vegetables, sugar, water, and stabilizers. Making velva requires a combination of stabilizers with the optimum concentration to produce velva with a soft texture and long melting power. This research aims to obtain the best concentration ratio of Carboxymethyl cellulose (CMC) and gum Arabic in making Dutch eggplant Velva. This research …
ABSTRACT Sago plants are a type of palm that can serve as a carbohydrate source due to their high starch production. However, using natural sago starch in food products and its processed derivatives remains limited. Natural sago starch has certain limitations in its physicochemical characteristics. These limitations can be addressed through dual modification, specifically fermentation and auto…
ABSTRACT Tubers in Indonesia are a source of carbohydrates after cereals, and have many types, one of which is purple sweet potato. Purple sweet potato has a complex nutritional content so that it has the potential to be made into various forms of processed food, one of which is jelly candy. Jelly candy generally adds fruit juice or essense in adding aroma, color, and distinctive taste and…
ABSTRACT Probiotics are live microorganisms that confer health benefits to the host if consumed in sufficient quantities. The activity of bile salt deconjugation and inhibition of pathogenic bacteria needs to be carried out on Limosilactobacillus fermentum InaCC B1295 and Pediococcus pentosaceus strain 2397 with and without CMF hydrogel encapsulation from oil palm fronds. This study was ca…
ABSTRACT Dry noodles are popular in Indonesia and primarily made from wheat flour. In recent years, there has been increasing interest in using sago starch as a glutenfree food alternative. Heat moisture treatment (HMT) can modify sago starch properties, depending on processing conditions like moisture content. This study aimed to evaluate the effect of varying moisture content during HMT …
ABSTRACT Marshmallow is a soft candy with a soft, chewy texture and a distinctive sweet taste. Natural coloring, such as rosella flower petal extract, is expected to provide good marshmallow characteristics. This research aimed to determine the best marshmallow treatment by adding rosella flower petal extract to its physicochemical and sensory characteristics. This research was carried out…
ABSTRACT Sengon wood is one of the fast-growing wood species that is widely utilized. However, it has low natural durability and is susceptible to termite attacks. This study aimed to evaluate the effectiveness of papaya leaf extract as a natural wood preservative against termite attacks on sengon wood and to determine the optimal concentration for enhancing its durability. The experiment …