cover
Contact Name
Agri Suwandi
Contact Email
asiimetrik@univpancasila.ac.id
Phone
+628129683716
Journal Mail Official
asiimetrik@univpancasila.ac.id
Editorial Address
Fakultas Teknik Universitas Pancasila Jalan Srengseng Sawah, Kec. Jagakarsa, Kota Jakarta Selatan, Jakarta Selatan - 12640
Location
Kota adm. jakarta selatan,
Dki jakarta
INDONESIA
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi
Published by Universitas Pancasila
ISSN : 26551861     EISSN : 27162923     DOI : https://doi.org/10.35814
Jurnal ini mempublikasikan artikel ilmiah berbasis penelitian, studi kasus, articles review, rekayasa dan inovasi yang mencakup teoritis maupun praktis serta pengembangannya. Topik artikel ilmiah yang dimuat ASIIMETRIK mencakup bidang Arsitektur, Teknik Sipil, Teknik Industri, Teknik Informatika, Teknik Mesin dan Teknik Elektro.
Articles 18 Documents
Search results for , issue "Volume 4 Nomor 2 Tahun 2022" : 18 Documents clear
Analisis Pengaruh Getaran Pompa Terhadap Aliran Fluida pada Proses Pemipaan Skala Laboratorium I Gede Eka Lesmana; Febriani Chairunisa; Maria Putri Hartanto; Rovida Camalia Hartantrie
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 4 Nomor 2 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.3461

Abstract

Piping installations are generally used to drain fluids with the help of tools such as pumps. The pump motor causes a high enough vibration so that if it is connected to a piping installation it can cause vibrations in the pipe. If the vibration generated by the pump against the pipe is strong enough, it can cause problems such as misalignment, and others. To identify the resulting vibration. In this study, using variations in the diameter of the pipe and variations in the distance of the blockage in the clogged pipe. Variations in the diameter of the pipes used are ½”, ¾”, 1”, 1 ¼”, dan 1 ½”. And the variation of the distance of the blockage on the pipe that is plugged is 196.5 cm, 206.5 cm, 216.5 cm, 226.5 cm, and 236.5 cm. The comparison of the value of the vibration velocity becomes a reference to determine the diameter of the pipe that is suitable for installation and to find out that the clogged pipe can flow fluid. Based on the results of this study, a pipe with a diameter of ½”has the highest vibration velocity value of 6.1 mm/s and a pipe with a diameter of 1 ½” has the lowest vibration velocity value of 0.82 mm/s and in the condition of a clogged pipe the value is 1, 04 mm/s and the average value of the vibration velocity in the pipe under normal conditions is 0.7 mm/s.
Analisis Kinerja R290 sebagai Pengganti R32 pada Unit AC-Split Kapasitas 9,000 Btuh/hr Widodo; Ade Irvan Tauvana; Fatkur Rachmanu; Lukman Nulhakim; Syafrizal; Mokhamad Is Subekti
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 4 Nomor 2 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.3466

Abstract

R290 is a type of natural refrigerant that has ODP = 0 and GWP = 4. While R32 from synthetic materials has ODP= 0 and GWP = 675 both are refrigerants used in Split AC. With this high GWP, it can have a damaging impact on the atmosphere. The advantage of R290 is that it has a lower density compared to R32, which can save the number of fillings in the AC unit by ±30% of the previous amount of refrigerant in the same volume. R290/R32 was flammable with LFL= 2%/13% and UFL= 10%/33%. The purpose of this study was to analyze the performance of R290 as a substitute for R32 on an AC-split unit with a capacity of 9,000 Btuh/hr. The steps used in the test are that the AC unit is placed in an open room with ambient temperature around 32°/80°C. The test was carried out until it reaches the optimal and stable temperature, then data is collected. The results of data collection from the evaporator air temperature R290/R32 = 21.4°C/23.0°C, condenser air temperature = R290/R32= 35°C/38.5°C, suction pressure= 90 psig/130 psig and discharge 200 psig/420 psig. The test data were analyzed and calculated using the Mollier Chart software with the results = R290/R32 = refrigeration effect = 344.8/272.2 kJ/kg, compression work = 12.18/13.02 kJ/kg, COP = 28.3/20.9, compression ratio = 2.2/3.2, strong electric current 4.98/5.73 A. From the decrease in electric current of R290 obtained a savings of 13.3% was obtained when converted to electricity bill payment and get a profit of 45,886/month.
Sistem Pakar Berbasis Web Diagnosa Penyakit Gigi dan Mulut di Klinik Sehati Rika Nurhayati; Satria Nusantara Achmad
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 4 Nomor 2 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.3473

Abstract

The lack of knowledge of dental and oral health and the limited number of dentists causes low public awareness of dental and oral health. This condition makes some people put aside efforts to prevent and treat dental and oral diseases. Therefore, this study has created an expert system for early diagnosis of dental and oral diseases, so that it can help the public to find out about the dental and oral diseases they are suffering from and overcome the problem of scarcity of dental and oral experts. As for designing the decision support system are use the Expert System method for evaluating criteria and sub-criteria, with the Personal Home Page (PHP) programming language, MySQL as a database server, APPSERV as a web server. The results of this information system design are web applications. to input data on the symptoms of the disease suffered by the patient, then carry out the process of selecting the symptoms of the disease and produce a diagnosis result in the form of disease and healing solutions.
Pengaruh Suhu Pengeringan Elektroda E 7018 Terhadap Hasil Pengelasan Material A36 Candra Wahyu Setyawan; Syaripuddin; Ahmad Lubi; Ferry Budhi Susetyo
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 4 Nomor 2 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.3510

Abstract

The better welding results are always a scientific challenge in welding engineering. This is to ensure the connection functions properly according to its designation. The main purpose of this study was to determine the effect of electrode drying temperature on the mechanical properties of ASTM A36 steel weld joint. This research was conducted at the Condet Welding Training Center and PT. Gamma Hepsi Condet. The tests carried out were visual tests, radiographs, and tensile tests. The results showed that the drying of the electrode E 7018 without an oven had a lot of welding defects on the inside in the form of porosity about 2 mm. The results showed that the highest tensile strength of 50.01 kgf/mm² was found in specimens using an electrode drying temperature of 230ºC.
Analisis Sentimen Opini Masyarakat Terhadap Keefektifan Pembelajaran Daring Selama Pandemi COVID-19 Menggunakan Naïve Bayes Classifier Ari Wibowo; Firman Noor Hasan; Luthfi Akbar Ramadhan; Rika Nurhayati; Arief Wibowo
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa dan Inovasi Volume 4 Nomor 2 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.3577

Abstract

Since Indonesia was affected by the Covid-19 pandemic, one of the sectors affected was Education. The government makes an online learning system policy where the system is run with an online process. Not a few of them complained about the limitations of activities issued by the government. Twitter social media is often used to express opinions about concerns about programs issued by the government. The Twitter data crawling process was carried out using the hashtag "learning from home" to get as many as 1,000 datasets, followed by the process of removing duplicates which left 524 datasets and then carrying out the implementation stage of the Naïve Bayes Classifier Algorithm. The purpose of this study was to determine the number of positive and negative sentiments from the dataset labeling classification and to determine the accuracy results of using the Naïve Bayes Classifier method as well as the results of evaluation tests on positive and negative sentiment datasets. Based on the experiment, positive sentiment was obtained as many as 480 and negative sentiment as many as 44 out of 524 datasets. The accuracy results in the evaluation test process get results of 88.5% where negative sentiments get a precision value of 12%, recall 17%, and f1-score 14%, while positive sentiments get a precesion value of 95%, recall 93%, and f1 -score 94%.
Analisis Dampak Intensitas Cahaya Reklame Terhadap Tingkat Pelayanan Jalan bagi Pengguna Jalan A. R. Indra Tjahjani
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 4 Nomor 2 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.3636

Abstract

The lively installation of billboards in big cities adds to the beauty of the town. DKI Jakarta has made improvements along Jalan M.H. Thamrin arrived at Jl. Fatmawati. The purpose of the study was to find out the opinion of people who crossed the study area in the comfort of driving at night. The purpose of installing billboards is as a promotion media, as well as information media from various agencies. The method used is the theory of road performance and community responses collected using a questionnaire via google form to the community selected based on the purposive sampling method, obtained 47 respondents in the age range of 22-58 years. The level of service that shows road performance is at the level of service (LOS) A where the value of DS = 0.1 and the average speed on Fatmawati road for the Lebak Bulus direction is 20 km/hour with LOS B, while the Blok M direction is 26 km/hour with LOS B. Likewise the speed on the road M.H. Thamrin the direction of Jl. Jend Sudirman is 5 km/hour with LOS D, and the direction of Jl. Jend. Sudirman is towards Jl. Thamrin 40 km/hour. Respondents consisting 87.2% of these men stated that the existence of billboards in various forms needed to be maintained (53.2%). With LOS C, it is recommended that the installed billboards be reduced in lighting so as not to interfere with the focus of road users who are passing. However, respondents also said that the installation of billboards in the form of billboards with lighting was widely used in Europe and America.
Potential of Bamboo as Car Roof Material D. L. Zariatin; Josep Krisdiandi Sibarani; Dahmir Dahlan; Ralf Förster; Ziani Adriant
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 4 Nomor 2 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.3644

Abstract

An effort to achieve SDGs 12# responsible for consumption and production is by optimizing the application of natural recycled materials, such as bamboo, in the automotive industry. Bamboo is a potential insulating material because it has low thermal conductivity. This study used Gigantochloa Atroviolacea as a thermal insulator projected as a car roof. Experiments were performed to identify the effective thermal conductivity. There were two shapes tested: slab and box. The first specimen is a laminated bamboo slab, and the second is a combined slab of laminated bamboo, glass wool, and aluminum foil. Based on the heat transfer calculation, the effective thermal conductivity is 0.21 W/mK and 0.14 W/mK for the laminated bamboo slab and combined slab, respectively. The thermal flow characteristic was analyzed in two box models with different material arrangements. The first box is laminated bamboo and fiber, and the second is laminated bamboo and glass wool. The results show that the first box can insulate heat better than the second. It was concluded that laminated bamboo and bamboo fiber can be used as a substitute for glass wool material. The bending test of laminated bamboo with three different layers was performed according to ASTM D 790. The maximum load was 616 kg for five layers. The bending test showed that laminated bamboo is insufficient as a car roof. Steel plates are still necessary to comply with the requirements of the FMVSS 216 standard.
Cover and Preface Vol. 4 No. 2, July 2022 Editor
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa dan Inovasi Volume 4 Nomor 2 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Page 2 of 2 | Total Record : 18