Garuda - Garba Rujukan Digital

Performance of Grid-Connected Rooftop Solar PV System for Households during Covid-19 Pandemic Partaonan Harahap; Faisal Irsan Pasaribu; Chandra Amirsyah Putra Siregar; Benny Oktrialdi
Journal of Electrical Technology UMY Vol 5, No 1 (2021): June
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.v5i1.12089

As we know, the need for electrical energy is increasing along with population growth and technological developments. This increase was also triggered by the growth rate of the energy demand of 6.86% per year. Most of the energy needs come from non-renewable energy, which has limitations and is not environmentally friendly. Despite being affected by Covid, this period is a momentum to start the direction of clean energy policies. The utilization of solar power can be started by utilizing a rooftop solar power system on the roof of a hotel or on the roof of other industrial buildings. As one of the research and development institutions in the housing and settlement infrastructure sector, it tries to provide alternative technology solutions through an innovative technology called PV-roof. The results of the research show that the designed roof off-grid has an average voltage and current on the first day of 13 Volts and a current of 1.8 A, and on the second day, 12.4 Volts and a current of 1.6 A, while on the third day, 12.8 Volts and current of 1.8 A. If the use of 1 battery bears a load of 450 Watts for 2.7 hours, then for users less than 5 hours, the solar charger controller capacity is 12.12 A.

Perancangan Mesin Pengaduk Bumbu Kripik Ubi Untuk Peningkatan Produksi Industri Rumah TanggaDi Desa Sidodadi Ramunia Kecamatan Beringin Affandi Affandi; Khairul Umurani; Chandra Amirsyah Putra Siregar
IHSAN : JURNAL PENGABDIAN MASYARAKAT Vol 2, No 2 (2020): Jurnal Ihsan (Oktober)
Publisher : University of Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/ihsan.v2i2.5324

Program pengabdian masyarakat perancangan mesin pengaduk bumbu kripik ubi untuk peningkatan produksi industri rumah tangga di Desa Sidodadi Ramunia Kecamatan Beringin Kabupaten Deli Serdang berlangsung selama 6 bulan. Program ini dimulai dari bulan November sampai dengan Juni 2020. Kendala yang dihadapi mitra adalah dalam proses pengadukan bumbu kripik ubi yang dilakukan secara manual Proses pengadukan tersebut membutuhkan waktu yang cukup lama serta tidak efisien terhadap waktu. Sehingga juga berimbas terhadap jumlah produksi yang dihasilkan. Tujuan program ini adalah untuk menbuat mesin pengaduk bumbu kripik serta pelatihan dan pendampingan pengoperasian mesin kepada mitra agar mahir dalam teknologi proses mesin. Setelah selesai program pengabdian perancangan mesin pengaduk bumbu kripik ubi ini, maka diharapkan mitra mampu menggunakan mesin pengaduk dan dapat meningkatkan produksi kripik ubi.

Desain Dan Pembuatan Mesin Pengaduk Srikaya Guna Membantu Meningkatkan Produktivitas Usaha Toko Roti di Kota Berastagi Sumatera Utara Ahmad Marabdi Siregar; Chandra Amirsyahputra Siregar; Khairul Umurani; Chairul Arif Gunawan Surbakti
IHSAN : JURNAL PENGABDIAN MASYARAKAT Vol 4, No 1 (2022): Ihsan: Jurnal Pengabdian Masyarakat (April)
Publisher : University of Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/ihsan.v4i1.9970

Sesuai hasil survey di UKM produksi roti di daerah Berastagi, bahwa proses pemasakan dan pengadukan selai srikaya masih secara manual. Hal ini menjadikan proses produksi relatif lama untuk 10 kg butuh waktu 10 jam. Selain itu selai srikaya sering pecah pada saat proses pengadukan berlangsung dan tekstur akhir kurang bagus. Untuk solusinya pada penelitian ini dirancang Mesin Pengaduk Selai Srikaya yang bertujuan untuk membantu proses pembuatan selai srikaya, agar lebih efektif dan efisien. Metode yang akan dilakukan, mesin ini didesain menggunakan software solidwork, pengadukannya menggunakan penggerak motor listrik dan pemanasan kompor LPG. Selain itu untuk mencegah terjadinya kegosongan selai srikaya, tabung pemasakan didesain model double jacket agar tidak bersentuhan langsung dengan api. Hasil uji kinerja mesin pengaduk selai srikaya didapatkan kapasitas produksi 30 kg dalam 8 jam. Hasil kualitas selai srikaya tidak pecah dan teksturnya bagus. Proses pengadukan menggunakan motor listrik sehingga mudah cara pengoperasiannya.

PKM PENYULUHAN DAN PENDAMPINGAN PETANI PADI DESA PEMATANG JOHAR KEC. LABUAHAN DELI KAB. DELI SERDANG Muhammad Alqamari; Nana Trisna Mei Br Kabeakan; Chandra Amirsyah Putra Siregar
ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Vol. 2 No. 3 (2021): Oktober
Publisher : CERED Indonesia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53695/jas.v2i3.544

Mitra pada rencana kegiatan PKM ini adalah Kelompok Usaha dibidang pertanian. Kelompok ini berlokasi di Dusun VI Desa Pematang johor Kecamatan Labuahan Deli Percut Sei Tuan Kabupaten Deli Serdang, Sumatera Utara Berdasarkan hasil observasi dan wawancara ditemukan Permasalahan pada mitra meliputi : 1) Kurangnya permodalan dalam menjalankan usaha taninya 2) masih rendahnya produksi padi 3) Terbatasnya pengetahuan petani tentang budidaya padi , Solusi yaitu 1). Melaksanakan pelatihan dan pendampingan kepetani untuk meningkatkan produksi padi sehingga meningkatkan produksi, 2) Pemberian pendidikan dan pelatihan serta pendampingan manajemen usaha dengan mengoptimalkan fungsi Kelompok Tani Mitra, meliputi pembuatan bisnis plan dan penyusunan laporan keuangan. 3). Memberikan modul dan pelatihan pendampingan pemanfaatan limbah kotoran ternak menjadi pupuk. Metode yang dilakukan dalam mewujudkan hal tersebut diatas tim menyusun program dalam bentuk transfer ilmu dan pendampingan yang berkelanjutan. target Pertama di targetkan dalam program yaitu: praktik, pelatihan dan pendampingan peningkatan produksi padi dan pendampingan permodalan usaha tani. Luaran dari program antara lain : 1). Panduan Metode pembuatan budidaya tanaman padai 2). Medapatkan permodalan usaha tani.

The Effect of Adding Aluminum Scrap to Motor Vehicle Mufflers to Reduce the Danger of Exhaust Emissions Ahmad Marabdi Siregar; Chandra Amirsyahputra Siregar; Khairul Umurani; Mulyadi Mulyadi; Tony Siagian; ML Teguh Samudra; Aufa Afika
Jurnal POLIMESIN Vol 21, No 1 (2023): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i1.3263

Air pollution due to motor vehicle exhaust emissions is increased. Polluted air harms human health dan the environment. Consequently, it is essential to make a sustained effort to reduce air pollution. The purpose of this research is to investigate the effect of adding aluminum scrap to the exhaust system of a motor vehicle on gas emissions composition. The motor vehicle exhaust system was modified to accommodate aluminum scrap placement. A gas analyzer was utilized to observe exhaust gas composition, such as carbon dioxide, hydrocarbon, and carbon monoxide. Aluminum scrap with different masses was wrapped around the exhaust's inner tube in 50 gr, 70 gr and 90 gr. The engine speed was maintained at 500 rpm throughout the testing process. It was found that the temperature of the outer exhaust tube is in a range of 40 degrees Celsius to 50 degrees Celsius. The results revealed that the most appropriate amount of aluminum scrap was 90 gr n to reduce carbon monoxide, hydrocarbon, and carbon dioxide in an exhausts gas. The surprising outcome was 76.78 % of carbon monoxide content declined, and furthermore hydrocarbon, and carbon dioxide content were deteriorated by 61.63% and 78.37%, respectively

Analisa beban static pada tabung Apar tepung biji durian menggunakan Metode CAE (Computer Aided Engineering) Harahap, Roby Alfiah; Siregar, Chandra Amirsyah Putra
Jurnal VORTEKS Vol. 4 No. 2 (2023): Oktober 2023
Publisher : Program Studi Teknik mesin, Fakultas Teknik, Universitas Al Azhar Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54123/vorteks.v4i2.308

With the increasing science of technology, especially in the industrial world, currently experiencing increasingly rapid progress will bring consequences and influences to the continued need for various tools to facilitate and expedite work in various fields both as complements and main products. This is what drives us to design, build and analyze an APAR (Light Fire Extinguisher) using the basic ingredients of durian seed flour and Nitrogen (N). The material used in making this apar is carbon steel with a length of 530 mm, diameter: 150 mm and tube thickness of 6 mm. Because of the static fluid in the apar, the analysis carried out is load static analysis on durian seed flour apar tubes using the CAE (Computer Aided Engineering) method, which includes stress, strain and changes in shape / displacement on each element of the durian seed flour fire extinghuisher tube with normal pressure variables of at least 16 bar and a maximum of 18 bar. The results of this analysis showed a stress of 0.607 N/m and experienced an ESTRN strain of 2.817e – 06 then underwent a change in shape / displacement of 1,000e – 30 mm at a normal pressure variable of at least 16 bar. Then with a normal pressure variable of a maximum of 18 bar get a stress result of 0.545 N/m and experience an ESTRN strain of 2.817e – 06 then experience a change in shape / displacement of 1,000-30 mm.

Eksperimental Kekerasan Dan Struktur Mikro Pada Produk Foot Step Berbahan Limbah Alumunium Hasil Pengecoran Cetakan Pasir Silika Berpengikat Bentonit S, Dendi; Siregar, Ahmad Marabdi; Siregar, Chandra Amirsyah Putra; Nasution, Arya Rudi; Mahjudin, Mahyunirsyah
Rekayasa Material, Manufaktur dan Energi Vol 5, No 1: Maret 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i1.10266

This study aims to determine the results of the hardness values of castings using silica sand molds on market products and the microstructure contained in the results of various mold castings. Aluminum is often used as a material for making automotive components, machinery, art objects, and household appliances. Aluminum is a lightweight metal that is corrosion resistant. The foundry industry has now developed a lot from metal casting to non-metal casting. One of the metal casting technologies known today is metal casting technology with sand casting, the casting carried out in this study uses sand molds. The materials used in this study include silica sand, bentonite, water, aluminum waste, and the tools used include patterns, melting furnaces, scales, sand paper. In this research, testing, hardness test and microstructure test were carried out. The results of the hardness test on the standard specimen have an average value of 76.33 BHN, the first mold variation specimen has an average value of 63.69 BHN, and the second mold variation specimen has an average value of 63.84 BHN. In the microstructure test, the first variation of the castings had good aluminum dispersion, a high level of porosity, and for the second variation specimen the castings had good aluminum dispersion and low porosity. After seeing the results of the hardness and microstructure tests, it can be explained that the market product has a better value for the test results, this is because the results of the castings use permanent molds, and it can also be seen that the results of the microstructure affect a hardness value of the two results of the bentonite-binding silica sand mold castings.

PENGARUH PARAFFIN WAX SEBAGAI LAPISAN TANKI PADA AIR CONDITIONER WATER HEATER (ACWH) Siregar, Chandra Amirsyah Putra; Siregar, A M; Lubis, R D W; Rudi, Arya; Rosyadi, Irham
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1677

Currently air conditioner (AC) has been widely developed, one of which is the development of functions into two functions, namely air conditioning and providing hot water for bathing needs. The method is to utilize the high temperature and pressure of the front coming from the compressor, which is diverted into the water tank (air conditioner water heater (ACWH). So that when it passes through the water tank, heat transfer occurs into the water itself. The problem that arises is that when the AC is not operating, there is no heat source to maintain the water temperature in the tank. So an isolation method is really needed. This research will add phase change material such as paraffin wax as a tank lining. The aim is to lengthen the heat transfer process from inside the tank to the environment. Apart from that, this research also aims to analyze the effect of adding paraffin wax as a tank layer on AC performance. This research was carried out experimentally with a test duration of 7 hours, and cooling without time limit until the water temperature in the tank approached ambient temperature. As a result, it was found that adding a layer of paraffin wax as a tank layer was able to lengthen the heat transfer process from inside the tank to the environment. The time difference found was up to 15 hours. Meanwhile, AC performance decreased compared to tank without a paraffin wax coating.

STUDI EKSPERIMENTAL PENGARUH EFEKTIFITAS ACWH TERHADAP PANJANG PIPA KAPILER SEBAGAI PENGHANTAR PANAS Siregar, Chandra Amirsyah Putra; Siregar, AM; Affandi, Affandi
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 11, No 2 (2020): JURNAL SIMETRIS VOLUME 11 NO 2 TAHUN 2020
Publisher : Fakultas Teknik Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/simet.v11i2.5053

ACWH (Air Conditioner Water Heater) merupakan aplikasi rekayasa teknologi AC yang memanfaatkan panas buang dari kompresor. Pemanfaatannya dengan menambahkan alat penukar kalor (APK) yang bertujuan untuk memanaskan air didalam tanki, sehingga dapat memenuhi kebutuhan air panas untuk mandi. Dalam penelitia ini, APK yang digunakan adalah pipa kapiler berbahan tembaga. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh panjang pipa kapiler terhadap kinerja ACWH. Variasi panjang pipa kapiler yakni 8 m (1/2 dari ukuran tinggi tanki) dengan 15 lilitan dan pipa dengan panjang 16m dengan 30 lilitan (setinggi tanki). Diameter lilitan sebesar 150 mm. Variable yang akan diuji dan diamati adalah hasil temperature pemanasan air, temperature refrigerant keluar kompresor, dan juga temperature refrigerant masuk kondensor pada waktu 60 menit. Pengujian dilakukan terhadap 3 temperatur evaporator yang berbeda yakni 16 0C, 18 0C, dan 20 0C. Hasil pengujian menunjukkan bahwa alat penukar kalor dengan panjang pipa kapiler 16 m lebih efektif untuk memanaskan air dibandingkan dengan alat penukar kalor dengan panjang pipa kapiler 8 m. Temperatur air dalam tanki dengan pengujian temperatur evaporator 16 0C sebesar 53.81°C dengan panjang pipa kapiler 16m. Sedangkan panjang pipa 8m, diperoleh temperatur air dalam tanki sebesar 53, 69 0C. Untuk pengujian dengan temperatur evaporator 18 0C dan 20 0C dengan menggunakan panjang pipa kapiler 16 m hasilnya masing-masing sebesar 51°C dan 46.81°C. Sedangkan menggunakan pipa kapiler 8m hasilnya masing-masing sebesar 49.94 0C dan 49.06 0C

PENGARUH PARAFFIN WAX SEBAGAI LAPISAN TANKI PADA AIR CONDITIONER WATER HEATER (ACWH) Siregar, Chandra Amirsyah Putra; Siregar, A M; Lubis, R D W; Rudi, Arya; Rosyadi, Irham
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1677

Currently air conditioner (AC) has been widely developed, one of which is the development of functions into two functions, namely air conditioning and providing hot water for bathing needs. The method is to utilize the high temperature and pressure of the front coming from the compressor, which is diverted into the water tank (air conditioner water heater (ACWH). So that when it passes through the water tank, heat transfer occurs into the water itself. The problem that arises is that when the AC is not operating, there is no heat source to maintain the water temperature in the tank. So an isolation method is really needed. This research will add phase change material such as paraffin wax as a tank lining. The aim is to lengthen the heat transfer process from inside the tank to the environment. Apart from that, this research also aims to analyze the effect of adding paraffin wax as a tank layer on AC performance. This research was carried out experimentally with a test duration of 7 hours, and cooling without time limit until the water temperature in the tank approached ambient temperature. As a result, it was found that adding a layer of paraffin wax as a tank layer was able to lengthen the heat transfer process from inside the tank to the environment. The time difference found was up to 15 hours. Meanwhile, AC performance decreased compared to tank without a paraffin wax coating.

Title

Found 11 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 11 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 11 Documents
Search