JTT (Jurnal Teknologi Terapan)
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Rancang Bangun Prototype Deteksi Emergency Kondisi Pasien Penyakit Jantung Berbasis Sistem Benam
Full text linkVital signs can be seen human health than body temperature, breathing, blood pressure, and pulse. In this study, designed a prototype monitoring the health condition of the human heart Microcontroller-based devices using GPRS connection to be made in the form of a small box that consists of two measurement points. The steps taken to design a monitoring system jatung human health is to design a system of hardware and software. The sensor used is Pulse Sensor and IC-LM35 spread across two measurement points. These sensors as detection of heart rate, and changes in body temperature, and heart rate measurement results and the temperature will be read and processed in the microcontroller-based Arduino and the measurement results will be stored in SDcard to log data. If there is a weakening of the heart rate in humans this device will send an emergency signal to the server that is the hospital, then the hospital will conduct an emergency response to pasienya. The results of the measurement of body temperature has an error rate of 0.73% and heart rate measurement with ECG sensor error rate of 3% and with manual measurement error of 2%
KAJIAN KENYAMANAN RUANG KULIAH TN II JURUSAN TEKNIK FISIKA UNIVERSITAS GADJAH MADA (UGM) DITINJAU DARI ASPEK TERMAL DAN POLA ALIRAN UDARA MENGGUNAKAN FLUENT
Full text linkTemperature and air circulation is an important factor in a building since it is closely related to health comfort. Therefore, the design of a building should be carry out precisely in getting a clean, healthy and comfortable air circulation in accordance to the requirement of the room.In order to carried out a good building designing, a research was needed to understand temperature distribution, the pattern of air flow and its velocity. In this research, a Classroom of TN II JTF UGM. This classroom have 1030 cm length, 790 cm of width, and 330 cm of height. The size of the windows is 100 x 100 cm and place 1m from the floor. The size of the doors is 140 x 210 cm. The windows are assumed to be widely open, the door always opened. The researched begins with geometric modeling of the model by using Gambit 2.2.30 and continued with model testing using Fluent 6.2.16. The test is carried out by giving three velocity variation of free air flowing i.e.: from 1.3 m/s, 3.61 m/s and 5.92 m/s, two direction variation of open air flowing and two variation temperature of free air i.e.: 21.50C and 27.650C.The standard of comfortable air velocity used in the room is 0.15 < V < 0.25 m/s, The standard of comfortable temperature used in the room is 20.50C and 27.10C. The air velocity and air temperature variation created comfort area and non comfort area in the room .The direction circulation of air variation created the different pattern air circulation in the room
Pengaruh Pemasangan Kapasitor terhadap Cop (Coefficient Of Performance) Air Conditioning
Full text linkNon linear load harmonics cause, Air Conditioning is one of the main types of inverters that generate non linear load harmonics. Harmonics on the Air Conditioning so that the reduction must not interfere with the quality of power on the system and network. The ability of an Air Conditioning unit to cool a room can be known as Coefficient Of Performance (COP). This can be seen from the comparison between the heat energy required to cool the room with the electric energy used on the unit. In this case you will know the impact caused by the reduction of the harmonics of the COP. Reduction of harmonics used in this study using 16 F capacitor which also serves as a power factor improvement. The results obtained after using the capacitor found impairment harmonic currents (IHDi). After the measurement of the COP also increased from 2,740 becomes 3,176. This proves that the capacitor also function besides improving the power factor can reduce the harmonics an improve the COP
Kekerasan Material Pasangan Elektroda (Cu) dan Lembaran plat (Fe) Pra Proses Spot Welding
Full text linkLas titik (spot welding) termasuk las tahanan listrik. Jenis ini merupakan metode yang paling banyak digunakan dan paling sederhana. Hasil proses pengelasan spot welding perlu diketahui secara detail karena akan berdampak pada kekuatan geser dan kekerasan hasil pengelasan, secara mekanik pasangan elektroda dan lembaran plat perlu diperhatikan tekanan elektroda pada lembaran plat, hal ini perlu reference sifat fisik kekerasan permukaan elektroda terhadap lembaran plat dan sebagai acuan awal pada pemilihan material pasangan elektroda dan lembaran plat dengan ketebalan 0,8 mm, maka perlu diketahui komposisi elektroda dan lembaran plat. Hasil uji pasangan material elektroda (Cu) dan lembaran plat (Fe), setelah dilakukan eksperimen uji spectrometric diperoleh bahwa elektroda memiliki kandungan Cu yang balance dan Lembaran plat memiliki kandungan Fe yang mendominasi namun memiliki Carbon kurang dari 0,25%, maka hal tersebut lembaran plat memiliki kategori karbon rendah, dan dari hasil uji kekerasan menunjukkan Elektroda memiliki nilai kekasaran 130 HV, hal ini menunjukkan bahwa elektroda kategori class 2 [10] dan lembaran plat memiliki kekasaran 128 HV, kecenderungan nilai kekasaran material elektroda lebih besar dari lembaran plat
ANALISA PERFORMANSI HEAT PUMP MENGGUNAKAN COUNTER FLOW HEAT EXCHANGERS
Full text linkHeat pump is a device that can be make heat and cool , which is functions as a cooling evaporator can be replaced to be a heating condenser. With adding a heat exchanger in the heat pump can provide better effect of heating and cooling. In this experiment, the heat pump using type hydrocarbon refrigerantand type friendly refrigerant to the environment, one of refrigerant isR-290. From the results that obtained value Coefficient Of Performance (COP) in the heat pump that uses a counter flow heat exchanger is 4.8 while the heat pump that does not use a counterflow heat exchanger obtained COP of 4.1. Efficiencies increase in the heat pump without using counter flow heat exchanger is 74%, otherwise the efficiency decrease of the heat pump using heat pump is 85%
Pengkondisian Udara Secara Otomatis Pada Proses Pasteurisasi Kumbung Jamur Merang Menggunakan ATMEGA8535
Full text linkIn this research designed an air conditioning system that is capable of reaching temperatures needed in the pasteurization process in miniature kumbung. The temperature required is approximately 70-80oC. The temperature was maintained for 4 hours. To maintain at that temperature control system designed 'on-off' by using a microcontroller ATMega 8535. This system works by shutting down the system when the temperature has been reached and revive the system when the temperature has dropped to the lower limit temperature setpoint. The results of this research in terms of the time required for the pasteurization process kumbung automatic mushroom faster at less than 5 hours compared kumbung regular mushrooms is 7-8 hours
PENURUNAN TIMBULAN LIMBAH DENGAN MODIFIKASI SISTEM AIR STARTING MESIN MAIN BOOSTER PUMP
Full text linkHazardous and toxic waste (LB3) is one of the environmental impacts that must be managed in the Republic of Indonesia in accordance with Indonesian Law No. 32 / 2009 on the Protection and Environmental Management Article 58. B3 is the residue of a business and / or activities that contain hazardous and toxic. Hazardous and Toxic waste generated shall be reduced in accordance with Article 10 of Indonesian Regulation No. 101 / 2014 on the Management of Hazardous and Toxic Waste. One sector that has a real contribution in donating B3 waste generation is the energy sector. PT Pertamina, which is engaged in the energy sector undertake efforts to reduce hazardous waste generation on the activities of pumping the fuel at the Balongan Fuel Terminal. The case studies conducted in Balongan. Starter activities that were previously used accumulator pose as hazardous waste to be modified. Reduced waste generation by Fuel Terminal Balongan by modifying the diesel engine starter system method with compressed air
