Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Jurnal Ilmiah Poli Rekayasa

JPR
Website

Published by Politeknik Negeri Padang

ISSN : 18583709 EISSN : 26853922 DOI : 10.30630/jipr

Core Subject : Education,

Education

Jurnal Ilmiah Poli Rekayasa adalah jurnal ilmiah yang diterbitkan 2 edisi dalam setahun, bulan April dan Oktober. Terbit sejak tahun 2005. Fokus Kajian jurnal ini adalah Fokus kajian artikel dalam JPR mencakup Mechanical Engineering, Civil Engineering, dan Electronica, Electricty dan Telecomunication EngineeringLingkup Jurnal Ilmiah Poli Rekayasa meliputi : 1) Energi terbarukan (rewnable energy), 2) Inovasi kendaran bermotor hemat BBM, 3) Material Maju, 4) Emisi dan pembakaran motor bakar, 5) Rekayasa termal dan fluida, 6) Rekayasa power plant, 7)Material komposit, 8) Biomaterial, 9)Teknologi pengujian tak merusak (Non Distruction Test/NDT), 10) Kontrol dan mekatronika, 11) Planing untuk pengurangan resiko bencana, 12) Sistem transportasi antar moda, 13) Rekayasa konstruksi, bangunan, jembatan dan Jalan, 14) Manajemen daerah aliran sungai, air tanah, sedimen dan waduk, 15) Remote Sensing Harap baca panduan ini dengan seksama. Penulis yang ingin mengirimkan artikel ke Jurnal Ilmiah Poli Rekayasa, harus mengikuti panduan penulisan. Jika artikel yang dikirim tidak sesuai dengan panduan penulisan atau ditulis dalam format yang berbeda, maka akan DITOLAK oleh editor sebelum ditinjau lebih lanjut. Para editor hanya menerima artikel yang memenuhi format yang ditetapkan. Artikel ditulis dalam bahasa indonesia. Jurnal Ilmiah Poli Rekayasa menggunakan prosedur penilaian Double Blind. Dimana antara penulis dengan mitra bestari tidak saling mengenal identitasnya masing-masing. Silahkan kirimkan artikel anda dan untuk unduh Template DI SINI Etika Publikasi dapat dilihat pada tautan berikut ini : ETIKA PUBLIKASI.

Arjuna Subject : -

Articles 171 Documents

7 8 9 10 11

Kaji Eksperimental Pengunaan R22 dan R410A Berdasarkan Variasi Laku Aliran Massa Pada Mesin AC Dian Wahyu -; Nasrullah - -; Khairul Amri -
Jurnal Ilmiah Poli Rekayasa Vol 9, No 2 (2014)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

The development of the use of air conditioning machines (AC machines) is very high , due to the increased consumption of electricity for household needs are also increasing . Based on field observations of R22 refrigerant is still widely used in commercial air conditioning machines , where the refrigerant has properties that are not friendly to the environment . R410A refrigerant has been recommended to replace worn R22 . It became one of the rationale for conducting the assessment directly to efforts to reduce electricity consumption due to the use of air conditioning machines in the household and the efforts to preserve the environment . The research was conducted on a commercial air conditioning machines by testing the engine for both types of refrigerant ( R22 and R410A ) . Testing the engine characteristics , tested by varying the refrigerant mass flow rate for both refrigerants . The test results showed , electricity consumption ( compressor power ) for the use of both types of refrigerants is similar but uses R410A refrigerant produces a greater cooling effect than by using refrigerant R22 . In Overall effect of the variation of mass flow rate for both refrigerants clearly evident , the increase in mass flow rate causes enhancement of several variables such as the increase in compressor power , cooling effect , the effect of heat release , but for the coeficient of perfomance ( COP ) , the addition of the mass flow rate after COP The optimum value of the COP does not increase anymore . In this study, the highest COP values obtained in the refrigerant mass flow rate 3.4 g / s for R410A and R22 for 1.9 has the highest COP of 1.7 at a flow rate of refrigerant mass 3 g / s . For maximum cooling impact , generated by 0.502 kW to 0.572 kW usage for R22 and R410A.

Mengatur Kecepatan Motor DC dengan menggunakan Metode Fuzzy pada Alat Perontok Padi Anton Hidayat -; Nasrullah - -; Ramiati - -
Jurnal Ilmiah Poli Rekayasa Vol 11, No 2 (2016)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

In designing this device, the rice thresher will be lighter, so it will be easier in lifting, simpler in using so farmers as main users will easier in operating this instrument with featuring speed controllable by applying fuzzy method, and also no fossil fuels used because it utilize sunshine as green energy to drive DC motor. Solar cells are used to absorb sunshine in rice thresher machine because it easier in maintenance. The test results of the rice thresher machine is the reduction of the avarage motor speed by 195 rpm every each five rice straws, in the other hand the maximum electric current is needed to spin the rice threser is 6 ampere and minimum electric current is 2.2 ampere. Furthermore, to stabilize motor speed at 2000 rpm, the avarage time required is 6 seconds when this machine loaded with rice straws. The eficiency of the rice thresher machine is 96%, it mean the avarage time to thresh the rice is 9 rice straws every each seconds.

Perancangan dan Implementasi WSN (Wireless Sensor Network) Pada Alat Ukur Energi Listrik Aprinal Adila Asril; Firdaus - -; Arsis Warman -; Rahmifa Hendri -
Jurnal Ilmiah Poli Rekayasa Vol 14, No 1 (2018)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

WSN (Wireless Sensor Network) is a network consisting of several sensor nodes that form a collaboration in a WSN technology network using sensors. The WSN system can be implemented on an electrical energy meter. Electrical energy measuring instrument (kwh meter) is important for the community because it is related to the amount of the electricity bill. In the use of electrical energy, sometimes people do not know how much energy has been used in a month, so there is often a waste of electricity. The main purpose of this system is in the framework of transparency and provides information on per-kWh load rates in the use of electricity.The method used in making WSN implementation on this electrical energy measuring instrument is analyzing the problem, designing the system, making the system up to system testing. By carrying out these steps, the WSN implementation on this electrical energy measuring instrument can provide monitoring effectiveness and can find out how much per-kWh costs in the use of electrical energy.This system is programmed using the C language on Arduino. The devices used are Arduino Nano as the main controller, nRF24L01, ZMCT103C, LM358, LM2917N, and RTC. From the discussion it can be concluded that this system can help in knowing the cost of electricity usage per-kWh and can monitor the use of electrical energy using a PC (Personal Computer).

Monitoring Suhu Proses Sangrai Biji Kopi Roza Susanti -; Zas Ressy Aidha; Fedri Tri Satrio
Jurnal Ilmiah Poli Rekayasa Vol 12, No 2 (2017)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Temperature set of the coffee bean roasting to get the roasting temperature of arabica using thermocouple temperature cencor. Temperature monitoring is controlled by microcontroller. The suitable temperature set of roasting process determine the temperature of three conditions, they are light roast, medium roast, and dark roast. Roasting temperature set of the coffee bean have a goal to get the best quality of coffee bean.

Analisa Faktor-Faktor Yang Mendorong Penggunaan Sistem Informasi Kepegawaian (SIPEG) : Studi Kasus Politeknik Negeri Padang Ade Irma Suryani; Achmad Nizar Hidayanto
Jurnal Ilmiah Poli Rekayasa Vol 11, No 1 (2015)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Padang State Polytechnic is one of the best vocational Polytechnic in Sumatera. As the best college, Padang State Polytechnic has implemented several information systems; such as the Information System in the Human Resource Civil Service Department. However, the system still was not optimally utilized within the institution as a tool to support data processing and strategic tool to gain strategic advantages and to support the growth of the organization to a better level. This research was conducted to analyze the factors that encourage the usage of information system in the Human Resource Civil Service Department in PNP. In order to collect data survey, author has sent questionnaires to all faculties including lecturers and administration staffs in Padang State Polytechnic as user of Information System in the Human Resource Civil Service Department. Among 160 questionnaires that were distributed, only 121 questionnaires were returned. Furthermore, the questionnaires were proceeded with the Structural Equation Modeling (SEM) method by using Amos Software v.21. In conclusion, the factors that encourage the usage of Information System in the Human Resource Civil Service Department in PNP are Information Quality, Service Quality and System Quality.

Link Path Analysis Komunikasi Gelombang Mikro Topologi Ring Area Kota Padang Nasrul - -
Jurnal Ilmiah Poli Rekayasa Vol 12, No 2 (2017)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

The development of the telecommunication the rapidly and the increased the need for information , trigger the increasing number of system project communication and discharging radio frequency .This needs to a design and planning ripe to make the existing system can work optimal without any disturbance of discharging frequency two closely ( interference ) .At the end of this task using software aplication pathloss 5.0 to do design as well as performing calculations link budged in observance of some other factors such as the position of site, the height of the contours of, the condition of propagation , and device used .The end of this duty also using visual basic 2010 to assist in performing calculations link budged.In the design uses the topology of ring from the area of the Padang city was used in 6 ( six ) link , first bypass to tabing at a distance of link 3,59 km , tabing to minang plaza at a distance of link 1,87 km , minang plaza to hotel pangeran at a distance of link 2,48 km , hotel pangeran to simpang anduriang at a distance link 4,05 km , simpang anduriang tobalai baru at a distance of link 2,31 km and balai baru to bypass at a distance 3,75 km.

Kestabilan Model Epidemi Seir dengan Matriks Hurwitz Roni Tri Putra; Sukatik - -; Sri Nita -
Jurnal Ilmiah Poli Rekayasa Vol 11, No 2 (2016)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

In this paper, it will be studied local stability of equilibrium points of a SEIR epidemic model with infectious force in latent, infected and immune period. From the model it will be found investigated the existence and its stability of points its equilibrium by Hurwitz matrices. The local stability of equilibrium points is depending on the value of the basic reproduction number If the disease free equilibrium is local asymptotically stable.

Partisipasi Masyarakat Dalam Rangka Penanggulangan Pencemaran Sungai Elvi Roza Syofyan
Jurnal Ilmiah Poli Rekayasa Vol 14, No 2 (2019): -
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

River is a natural and man made watercourse in network of river flow and its water. The use of water in upper catchment will reduce the opportunity in using it downstream the catchment. Pollution in headwater would result in sosial cost in the downstream area. In turn if the society in the upper catchment preserve the river, the society downsteam the catchment will be benefit from it. Water is a natural resouces to fulfill life need of the society. Therefore, it needs to be preserved to benefit life of man as well other living matters. To preserve or attain water quality which can be used sustainably by the society with acceptable water quality level, there needs to preserve and control water by with preservation and mitigation of river pollution.

Penentuan Resistivity Tanah Di Dalam Menetapkan Area Pemasangan Grounding Gardu Distribusi 20 Kv Mengunakan Kombinasi Grid dan Rod di Kampus Politeknik Negeri Padang Junaidi Asrul -; Wiwik Wiharti -; Efendi - -; Firmansyah - -
Jurnal Ilmiah Poli Rekayasa Vol 13, No 1 (2017)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

To obtain a small earth (near zero) resistivity value is determined by the number of planted electrodes and soil type properties. Difficulty in obtaining this small resistivity value often errors in estimating soil properties or soil type resistance so that failure to obtain soil barriers often occurs.To determine the desired amount of material can be measured soil type resistor value, by measuring the soil resistivity value so that the estimated material cost estimation can be achieved well. then in this research using geoelectric method with Schlumberger configuration. Schlumberger method is a method with a constant system of spacing rules with the note of the 'n' multiplier is the comparison of the distance between the C1-P1 or (C2-P2) electrodes with P1-P2. The instrument used is a resistivity meter ( Naniura) equipped with four electrodes which have the ability to read output voltage response due to current injected into the ground surface through two current electrodes and two potential electrodes. In this study used progress to map the 2D isoresistivity beneath the measured surface. .The results of this soil resistivity measurement can be determined with certainty the amount of material used and the cost of workmanship provided to establish the proper grounding system to be attached to a 20 kV Distribution substation at the State Polytechnic Padang State Electricity Laboratory. So that the grounding system in pairs meet the standards that have been determined and can be categorized both and safe for humans and equipment for grounding Distribution Distributors 20 kV Electricity Engineering Laboratory at the State Polytechnic Campus Padang

Simulasi Numerik pada Rectangular Cylinder dekat Dinding yang mengunakan Diffuser dan tanpa Diffuser dengan Mengunakan K Model Nuzul Hidayat -
Jurnal Ilmiah Poli Rekayasa Vol 11, No 2 (2016)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Rectangular Cylinder with a rectangular cross section is also used as a building, the architectural features of the building, the internal flow geometry, and beam. In addition, flow around Rectangular Cylinder can produce local instability and can lead to global instability. Diffuser can work for both conditions by reducing the drag force and increase down force. Diffuser is designed to change the fluid kinetic energy into potential energy in the form of pressure. The increase in pressure that occurs in the diffuser will generate a positive pressure gradient or also called adverse pressure gradient (APG). In this case Rectangular Cylinder that use Diffuser And Without Diffuser at Re 1 x 106 obtained graphs of: (a) Drag Coefficient (Cd) (b) Lift Coefficient (Cl) and (c) Velocity contour in the area of mid span numerically using the software Fluent 6.3.26 with k ε- turbulence models that Standard are two-dimensional (2D). On the Cylinder Rectangular diffuser values obtained using 1:36 Cd and Cl -0.81 and Rectangular Cylinder without diffuser obtained value Cd Cl 0:47 and 1:53, clearly visible on the use Rectangular Cylinder diffuser turns diffuser provides greater Cd and Cl negative or increase down force. The treatment is to eliminate the other side upper corner on the front of a quarter circle with r = 0.1, this produces a different contour velocity when compared experiment this treatment capable of eliminating reattached flow on the upper side area.

Page 9 of 18 | Total Record : 171

7 8 9 10 11

Filter by Year

2014 2025

Filter By Issues

All Issue Vol 20, No 2 (2025): April Vol 20, No 1 (2024): Oktober Vol 19, No 2 (2024): April Vol 19, No 1 (2023): Oktober Vol 18, No 2 (2023): April Vol 18, No 1 (2022): Oktober 2022 Vol 17, No 2 (2022): April 2022 Vol 17, No 1 (2021) Vol 16, No 2 (2021) Vol 16, No 1 (2020): - Vol 15, No 2 (2020): - Vol 15, No 1 (2019): - Vol 14, No 2 (2019): - Vol 14, No 1 (2018) Vol 13, No 2 (2018) Vol 13, No 1 (2017) Vol 12, No 2 (2017) Vol 12, No 1 (2016) Vol 11, No 2 (2016) Vol 11, No 1 (2015) Vol 10, No 2 (2015) Vol 10, No 1 (2014) Vol 9, No 2 (2014) More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
jpr@pnp.ac.id

Editorial Address
Limau Manis , Padang. Sumatera Barat - Indonesia

Location
Kota padang,

Sumatera barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official jpr@pnp.ac.id

Editorial Address Limau Manis , Padang. Sumatera Barat - Indonesia

Location Kota padang, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
jpr@pnp.ac.id

Editorial Address
Limau Manis , Padang. Sumatera Barat - Indonesia

Location
Kota padang,

Sumatera barat

INDONESIA