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All Journal JTTM: Jurnal Terapan Teknik Mesin
Srihanto
Institut Teknologi Budi Utomo, Jakarta, Indonesia
Aerospace Engineering Control & Systems Engineering Engineering Mechanical Engineering

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PERENCANAAN SISTEM PENDINGIN UDARA MENGGUNAKAN CEILING DUCT DENGAN PENGATURAN SISTEM VRV/F PADA GEDUNG PERKANTORAN 3 LANTAI Srihanto; Moch Sugiri
JTTM : Jurnal Terapan Teknik Mesin Vol 2 No 1 (2021): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v2i1.81

Abstract

In tropical countries, there is a need for air conditioning systems, especially for high-rise buildings to provide comfort for their residents. For this reason, it is necessary to plan an air conditioning system using a ceiling duct with a VRV / F (Variable Refrigerant Volume / FLOW) system setting so that the load and capacity are appropriate and more efficient. In calculating the cooling load, starting from the sensible load and the load, and calculating the size of the ducting. The research method used to plan an air conditioning system using a ceiling duct with VRV / F system settings is the observation method by taking the required data. Perform calculations and analysis with the data obtained. So that after planning the total load on the 5th floor = 270,752.79 Btu / hr (79.3498kW), the 6th floor = 280,568.37 Btu / hr (82,227 kW), and the 7th floor = 229,690.66 Btu / hr (67.3157kW). The size of the ducting supply used is: Height = 75mm-450mm, Width = 75mm - 450mm and the size of the ducting return used is Height = 75mm-450mm, Width = 75mm-450mm. From the planning results, it is determined that the air conditioning system uses a ceiling duct system with VRV / VRF system settings. The advantages are Easy Maintenance, high reliability, large capacity use, space-saving design, different indoor units in one system, and using R410 type refrigerant.
Kajian sistem pendingin udara ditinjau dari kerusakan evaporator pada kendaraan ringan merk ‘x’ Srihanto; Parman Sinaga; Sigit Yulianto; Ricky Perdana Handono
JTTM : Jurnal Terapan Teknik Mesin Vol 4 No 1 (2023): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v4i1.451

Abstract

Pada sebuah kendaraan merk ‘X’ ditemukan masalah pada sistem AC dengan gejala AC tidak dingin. Oleh karenanya diperlukan analisis dengan tujuan untuk mengetahui akar penyebab AC tidak dingin. Metode penelitian yang digunakan untuk mendukung analisis yakni metode kuantitatif. Dari hasil penelitian pengukuran tekanan tinggi 10 bar, tekanan tinggi normal 12-14 (bar). Tekanan rendah hasil pengukuran 1,6 bar, tekanan rendah normal 2-4 (bar). Kebocoran evaporator yang mengalami benturan benda padat asing dan akumulasi kotoran yang tidak tersaring ketika udara dihembuskan oleh blower, oleh karenanya tekanan hasil pengukuran dibawah standar yang mengindikasikan jumlah refrigerant di dalam sistem AC berkurang. Dari hasil perbaikan dan penambahan saringan udara, sistem AC mengalami peningkatan kinerja. Hal ini ditandai oleh turunnya nilai kerja kompresor dari 40 kJ/kg menjadi 29 kJ/kg, naiknya nilai efisiensi refrigerasi dari 72% menjadi 75%, dan temperatur kabin dari 320C dengan RH 86% menjadi 250C dengan RH 72%.
Analysis of the air system of the 2-floor electronics industry building PT. CI Srihanto; Moch.Sugiri; Parman Sinaga; Prio Sejati
JTTM : Jurnal Terapan Teknik Mesin Vol 4 No 2 (2023): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v4i2.619

Abstract

For urban areas and Jakarta's industrial sector, air freshener systems and air conditioners are becoming increasingly necessary. At the electronics-focused PT. CI Jakarta, the air conditioner cools the space. The goal of this research is to raise staff comfort levels and productivity levels in order to enhance output. Planning information and a cooling load analysis are needed in order to implement the cooling system in the industrial building. To determine how much AC (Air Conditioner) is required, it is important to analyze the calculation of the design of the AC (Air Conditioner) in the industrial room at PT. CI. The first step in the planning process is to identify the industrial building data, which includes the room's area and wall material as well as its contents. Analyze cooling load to calculate engine power. Choosing a cooling system and cooling. The cooling load analysis at the electronics industry building produced 712 kW of results, including a sensible load of 705.83 kW and a Latent load of 3.03 kW. The machine uses R134a as its refrigerant. 355.5 HP for the compressor. COP 2.77 is of a medium size. The central AC system was chosen as the cooling system
Design of cold storage as a storage space for animal vaccines at PT. XYZ Sigit Yulianto; Srihanto; Hariyanto; Bantu Hotsan S; Dwi Yulianto
JTTM : Jurnal Terapan Teknik Mesin Vol 5 No 2 (2024): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v5i2.1212

Abstract

A refrigeration system is a system used to cool a room or an industrial product in the food, pharmaceutical, beverage, vegetable, fruit, and other industries to maintain product quality. One of its uses is as storage for various kinds of pharmaceutical needs, including vaccines for both animals and humans. The problem with cold storage is that existing vaccine storage has been in operation for a long time so it is necessary to study whether it is still able to maintain the vaccine storage temperature, namely -80C. The aim of designing cold storage is to maintain a stable vaccine storage temperature. Because vaccines consist of various kinds of microorganisms that are easy to activate. To maintain the quality of the vaccine, cold storage is needed. The research methodology for writing this thesis is to collect design data from one of the vaccine storage industry companies, and literature studies, then analysis of cooling load planning studies, vaccine storage capacity in cold storage measuring 10 x 10 x m 3 meters and determine the power of the cooling machine using a system. standard vapor compression cooler. The results of the analysis of the refrigeration system planning study showed that the indoor vaccine capacity was 30,600 bottles or 2056,701 lbs (822,680 kg), storage temperature -80C, cooling load 308,133 Btu/hr, or 90,283 W, this system uses R 134 A refrigeration. Using refrigerant, power compressor 23.32 kW, or 32 HP, COP 3.9.
Co-Authors Bantu Hotsan S Dwi Yulianto Hariyanto Moch Sugiri Parman Sinaga Prio Sejati Ricky Perdana Handono Sigit Yulianto Sigit Yulianto