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JOURNAL OF APPLIED SCIENCE (JAPPS)
Published by Institut Teknologi Sains Bandung
ISSN : 26567288     EISSN : 26567334     DOI : https://doi.org/10.36870/japps
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Journal of Applied Science (JAPPS) is a collection of scientific articles relating to the field of applied science which includes engineering and design. This journal discusses the scientific development of engineering in the fields of civil engineering, mining engineering, metallurgical and material engineering, petroleum engineering, and engineering in other fields. In addition, it also contains scientific articles in the field of planning such as urban and regional planning and Architecture which is balanced with design in the fields of Product and Interior Design. In the process, this journal involves the reviewer with a minimum doctoral qualification from domestic and foreign universities affilitations. In addition, it also involves observers from industry and the government with appropriate qualifications in the field of review. JAPPS will be published twice a year, in February and August with different topics for each volume. In its future development, JAPPS will be published in two versions: Indonesian and English.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 2 Documents
 1 
Search results for , issue "Vol 4, No 2 (2023): Journal of Applied Science (JAPPS)" : 2 Documents clear
Penggunaan Pasir Proppant Sebagai Media Hydraulic Fracturing Menggunakan Standar Api - Rp 19C Dahrul Effendi; Angga Naufal Firdaus
JOURNAL OF APPLIED SCIENCE (JAPPS) Vol 4, No 2 (2023): Journal of Applied Science (JAPPS)
Publisher : Institut Teknologi Sains Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36870/japps.v4i2.341

Abstract

To reduce the gap between national production capacity and oil consumption, which is likely to become wider in the future, it is necessary to seek out petroleum resources, including from shallow depth oil sands. Shallow depth oil sand exploitation technology is very different from conventional petroleum exploitation technology, while tight reservoirs are unconventional natural reservoirs trapped in tight sandstone but have the potential to be developed with fracture patterns, requiring hydraulic fracture stimulation. In hydraulic fracturing activities it is necessary to use proppant. Proppant itself is used to stimulate hydraulic fractures to function as a wedge so that the fractures that have formed do not close again. From the results of property tests using 3 sand samples, namely locations 1, 2, and 3, starting from roundness and sphericity tests, acid solubility, turbidity, bulk density, and impact resistance at location 1 were entered into the API. RP19C Specifications. After testing the proppant sand in the laboratory, the results of this research show that sample location 1 has the potential to be used as a proppant sand medium because by testing the sand properties of sample location 1 it still meets the API RP19C requirements with a roundness of 0.6 and a roundness of 0.7 while the minimum API specifications RP19C ≥ 0.6, location 1 acid solubility test results obtained 1.051% while API RP19C specifications ≤ 3%, location 1 turbidity test results obtained 205 NTU while API RP19C specifications ≤ 250 NTU, from location 1 bulk density testing results obtained 1,461 in the test The crush resistance of 20/40 mesh experienced damage of 55.11% - 61.05%, 40/70 mesh 14.81% -24.33%, for 70/140 mesh it was 10.61% - 46.71%. And during the crush resistance test, location 1 experienced a slight crush resistance test of the 20/40 mesh, which experienced damage of 55.11% - 61.05%
Analisis Pengaruh Bilangan Reynold Terhadap Efisiensi Kondensor Heat Exchanger Menggunakan Simulasi CFD Diana Kamaliyah Ichsan
JOURNAL OF APPLIED SCIENCE (JAPPS) Vol 4, No 2 (2023): Journal of Applied Science (JAPPS)
Publisher : Institut Teknologi Sains Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36870/japps.v4i2.348

Abstract

A condenser is a type of mechanical equipment that functions to convert hot steam into water by using sea water or lake water as a cooling medium. One of the uses of the condenser in Steam Power Plants is a Shell & Tube Heat Exchanger. The efficiency of the condenser is assessed by the greater the temperature drop that occurs at the output of hot steam from the turbine. In this research, a 3D simulation method with Computational Fluid Dynamics (CFD) was used to determine the effect of Reynold Number (Re) variations of 1000, 2000, and 4000 on residual graphs, temperature and pressure drop values, and pathlines. fluid flow. The simulation results show that the decrease in steam temperature in simulations with Re 1000 and Re 4000 is relatively the same, namely -96.9K, while at Re 2000 the decrease in steam temperature is -30.3K. The increase in water temperature at Re 1000 is 30.9K, Re 2000 is 43.03K, and Re 4000 is 3.7K. It can be concluded that the simulation with Re 4000 is the experiment with the best quality because the increase in air temperature is the smallest with the largest decrease in heat in the steam fluid

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