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Bahan Bakar Padat dari Biomassa Bambu dengan Proses Torefaksi dan Densifikasi Azhar; Heri Rustamaji
Jurnal Rekayasa Proses Vol 3, No 2 (2009)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Bambu sebagai biomassa dapat dijadikan sebagai bahan bakar padat dengan metode torefaksi dan dengan proses pemadatan (densification). Bambu dipotong-potong kemudian dilakukan proses torefaksi di dalam furnace. Bambu hasil proses torefaksi kemudian digiling atau ditumbuk hingga halus. Serbuk bambu itu kemudian diambil dan dipres sampai menghasilkan briket. Briket kemudian ditentukan nilai bakarnya (calorific value), dilakukan analisis proksimat, analisis ultimate serta laju keterbakaran. Proses torefaksi berhasil dilakukan pada suhu 200-300°C dan diperoleh produk arang yang, memiliki sifat getas, hidrofobik dan kandungan air yang menurun. Densitas briket bambu berpengaruh terhadap nilai bakarnya. Briket bambu dengan densitas lebih besar memiliki nilai bakar lebih tinggi. Laju keterbakaran briket dari bambu hasil torefaksi dipengaruhi oleh densitas. Briket dengan densitas lebih tinggi laju keterbakarannya lebih kecil. Proses torefaksi dan densifikasi dapat meningkatkan persentase kandungan karbon dan nilai bakar bambu sekitar 19-20% pada suhu 200-300°C. Kata kunci: bahan bakar padat, biomassa, bambu, torefaksi, densifikasi Bamboo can be utililized as biomass through torrefaction and densification processes and be used as solid fuel. In the present work, bamboo was cut into pieces followed by torrefaction process in a furnace. The product of the torrefaction process was then milled or ground to produce smooth powder which was then pressed to form briquettes. The resulting briquettes were characterized by determining their calorific value, proximate analysis, ultimate analysis and burning rate. The torrefaction process was successfully carried out in a temperature range of 200-300°C to obtain charcoal that had following properties: brittle, hydrophobic with decreasing moisture content. The experimental results showed that the calorific value was influenced by bamboo briquette density. Greater the density higher the calorific value of the resulting brequettes. In addition, the rate of burning was also determined by the density. The briquettes that had higher density had lower burning rate. The results showed that torrefaction and densification processes could increase carbon content and calorific value of the bamboo brequttes by 19-20% in a temperature range of 200 – 300°C. Key words: solid fuels, biomass, bamboo, torrefaction, densification Abstrak

Bahan Bakar Padat dari Biomassa Bambu dengan Proses Torefaksi dan Densifikasi Azhar; Heri Rustamaji
Jurnal Rekayasa Proses Vol 3, No 2 (2009)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.563

Bambu sebagai biomassa dapat dijadikan sebagai bahan bakar padat dengan metode torefaksi dan dengan proses pemadatan (densification). Bambu dipotong-potong kemudian dilakukan proses torefaksi di dalam furnace. Bambu hasil proses torefaksi kemudian digiling atau ditumbuk hingga halus. Serbuk bambu itu kemudian diambil dan dipres sampai menghasilkan briket. Briket kemudian ditentukan nilai bakarnya (calorific value), dilakukan analisis proksimat, analisis ultimate serta laju keterbakaran. Proses torefaksi berhasil dilakukan pada suhu 200-300°C dan diperoleh produk arang yang, memiliki sifat getas, hidrofobik dan kandungan air yang menurun. Densitas briket bambu berpengaruh terhadap nilai bakarnya. Briket bambu dengan densitas lebih besar memiliki nilai bakar lebih tinggi. Laju keterbakaran briket dari bambu hasil torefaksi dipengaruhi oleh densitas. Briket dengan densitas lebih tinggi laju keterbakarannya lebih kecil. Proses torefaksi dan densifikasi dapat meningkatkan persentase kandungan karbon dan nilai bakar bambu sekitar 19-20% pada suhu 200-300°C. Kata kunci: bahan bakar padat, biomassa, bambu, torefaksi, densifikasi Bamboo can be utililized as biomass through torrefaction and densification processes and be used as solid fuel. In the present work, bamboo was cut into pieces followed by torrefaction process in a furnace. The product of the torrefaction process was then milled or ground to produce smooth powder which was then pressed to form briquettes. The resulting briquettes were characterized by determining their calorific value, proximate analysis, ultimate analysis and burning rate. The torrefaction process was successfully carried out in a temperature range of 200-300°C to obtain charcoal that had following properties: brittle, hydrophobic with decreasing moisture content. The experimental results showed that the calorific value was influenced by bamboo briquette density. Greater the density higher the calorific value of the resulting brequettes. In addition, the rate of burning was also determined by the density. The briquettes that had higher density had lower burning rate. The results showed that torrefaction and densification processes could increase carbon content and calorific value of the bamboo brequttes by 19-20% in a temperature range of 200 – 300°C. Key words: solid fuels, biomass, bamboo, torrefaction, densification Abstrak

Sistem Pakar Diagnosa Hipertensi Dengan Algoritma Naive Bayes Azhar
Jurnal Elektro dan Informatika Vol 2 No 2 (2021): September 2021
Publisher : LPPM-UNIKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5201/jet.v2i2.265

Many factors that affect public health such as smoking, rarely exercise, consume foods that contain lots of salt and so forth. So human blood becomes abnormal and can cause death. This high blood disease is suffered in pregnant women and adults over 30 years. This disease should be frequently consulted by a doctor to be able to cope with sudden blood ascending from normal blood. So people who suffer from this disease should be more often in checking high blood presure based on the above problems then built a system of expert diagnosis of hypertensive disease that can diagnose early to overcome the disease. Expert system method used is naive bayes. This system is built to overcome certainty and uncertain on the intensity of different symptoms - different on each disease, so users can know the type of disease suffered by the user and treatment to overcome the disease. Based on the calculation, obtained the percentage of disease success in the expert system that is equal to 84.61% and the unsuccessful of 15.38% of the 13 data that have been tested on the expert system.

Sistem Informasi Antrian Periksa Dokter Di Rumah Sakit Umum Pidie Jaya Menggunakan Metode FIFO Berbasis Android Azhar
Jurnal Elektro dan Informatika Vol 2 No 1 (2021): Maret 2021
Publisher : LPPM-UNIKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5201/jet.v2i1.268

The Pidie Jaya Regional Public Hospital is a health service institution that organizes individual health services in a comprehensive manner that provides inpatient, outpatient and emergency services. The queue for outpatient often accumulate when queuing to get the queue number for Doctor's services and get medicines at the Pharmacy. Design and created The Information System of the queue for Doctor's examination in Pidie Jaya Regional Public Hospital Using the Android-Based FIFO Method has has aim to find out how long are the queue can be minimized and help patients to obtain the online queue number. To design, created and implement The Information System of the queue for Doctor's examination in Pidie Jaya Regional Public Hospital Using the Android-Based FIFO Method. This research uses two queuing models, there are a single channel multiple phase and multiple phase single channel. FIFO (First-In First-Out) Method was applied based on the patient who registers for the first time will get the first service and finished the first service or patient who registers for the first time will get a queue number. Based on the results of testing the queue information system, it can make it easier for outpatients to get the doctor's check queue number and queue at the pharmacy online, and can improve the patient service system at Pidie Jaya General Hospital. The result of this research is an android application that is used by hospital officers and patients seeking treatment at the Pidie Jaya public hospital in obtaining queue information and prescriptions, this application is also equipped with a realtime database to facilitate the process of exchanging information between users directly at system.

PENATAAN KURIKULUM DALAM PEMBENTUKAN MORAL SISWA Azhar
FITRAH: International Islamic Education Journal Vol 4 No 1 (2022): Fitrah: International Islamic Education Journal
Publisher : FITRAH was published by the Center for Research and Community Service (LP2M) Ar-Raniry Islamic State University Banda Aceh

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

The curriculum is a set of educational guidelines, but has not responded to the moral formation in the curriculum components. The formation of human moral quality as a basic element of personality needs to be restructured spiritual competence in the curriculum. Jackson and Geckeis in their idea of a curriculum have not included the measurement of spiritual competence. This fact can be found in schools. This paper aims to describe the arrangement of the curriculum in the moral formation of students. Quantitative data is presented in the form of tabulations and graphs to measure curriculum competence. Based on the study and analysis found three main topics. First, the urgency of structuring the curriculum, second, morals in the discussion, third, forming the morale of students, and fourth, strategic steps for structuring the curriculum and integrated solutions. This study is considered new because it uses curriculum structuring in responding to student morale. These findings can be used to strengthen the relevance of the curriculum to the moral decadence of the global era. A curriculum that is not well organized will produce graduates with low affective abilities.

Analysis of Infrastructure for Covid-19 Patient Satisfaction at RSDI Banjarbaru City Rahimul Yakin; Ichsan Rizany; Robiatul Adawiyah; M.Khairul Fikri; Azhar
Dunia Keperawatan: Jurnal Keperawatan dan Kesehatan Vol 9 No 3 (2021): Jurnal Dunia Keperawatan
Publisher : School of Nursing, Faculty of Medicine, Lambung Mangkurat University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.065 KB)

Patient satisfaction is a condition of fulfilling the wishes, expectations and needs of patients. Bases on datafrom March 2020 to March 2021, there was an increase in patients returning home at their own request by3% and the lack of fulfillement of patient satisfaction values which were still below 90%. The aim of thisstudy is to evaluate Infrastructure and compliance of covid-19 patients. The study desing used was crosssectional, whit a consecutive sampling and a sample size of 120 covid-19 patients. Data were analyzed usingthe spearman rank rest. Data collection was carried out from June 2021 to August 2021. The result of thestudy found that there was a relationship between phycsical facility and satisfaction with p value 0,001 and r0,498. The better infrastructure provide, the higher pastient satisfaction

Implementasi Akad Mudharabah Muqayyadah Off Balance Sheet Pada Bank Syariah Indonesia KCP Stabat Augia Sukma Humaira Amri Augia; Azhar
Jurnal Ekonomi dan Keuangan Syariah Vol. 1 No. 2 (2022): Edisi Desember 2022
Publisher : Peduli Riset dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (879.244 KB)

One of the Islamic operational principles applied in raising public funds is the mudharabah muqayyadah principle. Mudharabah as a collaboration, but the recording of transactions is done in Off Balance Sheet because the bank does not record it in the Bank's balance sheet, but only records it in the administrative account. Called mudharabah because of the profit sharing scheme, muqayyadah because there are restrictions. This study draws several problems including: how is the implementation of off balance sheet mudharabah muqayyadah contracts at Bank Syariah Indonesia KCP Stabat, how is the risk of financing to customer failure to repay their obligations and the level of health that supports the implementation of off balance sheet mudharabah muqayyadah contracts at Bank Syariah Indonesia KCP Stabat. This research is a field research (field research). The data of this research were obtained from Bank Syariah Indonesia KCP Stabat which became the object of research. Data collection techniques were carried out by observing, interviewing, and enriching with library data. Studying, understanding books, journals, and scholarly writings related to the object of research, the sample was taken as many as 4 people consisting of 4 employees at the bank. Based on the results of the study, that the implementation of off balance sheet mudharabah muqayyadah contracts at Bank Syariah Indonesia KCP Stabat was caused by a lack of funds to open a desired business. By fulfilling the conditions set by Bank Syariah Indonesia KCP Stabat, the bank will first consider whether or not the customer has to borrow the funds. Risk is a threat or action that has an impact on financing.

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