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All Journal Astonjadro JTTM: Jurnal Terapan Teknik Mesin
Srihanto
Institut Teknologi Budi Utomo, Jakarta, Indonesia
Aerospace Engineering Civil Engineering, Building, Construction & Architecture 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.
Air conditioning system analysis for two floors electronic industrial building size 40 X 25 X 10 meters at PT. CI. in Jakarta Srihanto Srihanto; Indra Widarmadi; Sahidul Anam; Parman Sinaga; Sigit Yulianto
ASTONJADRO Vol. 12 No. 1 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i1.8626

Abstract

Air fresheners or AC (Air Conditioning) systems are increasingly becoming a necessity for urban communities and the industrial world in Jakarta. AC functions to cool industrial rooms, offices and homes. The PT CI Electronic Industry Building, has not yet installed an air conditioning system so that the production room is not comfortable for its employees. The purpose of installing air conditioning in the industrial building is to increase employee comfort and productivity. In installing an air conditioning (AC) system in the industrial building, design data and cooling load analysis are required. Therefore it is necessary to study the design of industrial air conditioners at PT CI by calculating the cooling load, calculating the required electrical power in order to determine the size and type of air conditioner needed. The research methodology starts from determining industrial building data, such as what tools and machines are in the room, the area of the room and the room wall materials, then analyzing the cooling load, determining the power of the cooling machine and determining the cooling system used. From the results of the cooling load analysis in the Electronics Industry building at PT CI, the total load on floors 1 and 2 was 709 kW, or 201,6 TR, including sensible load: 705.83 kW and Latin load: 3.03 kW. The refrigerant used by the AC R 134a engine. The compressor power is 356 HP. Medium large COP 2.8. The cooling system chosen is the central air conditioning system.
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
Co-Authors Indra Widarmadi Moch Sugiri Parman Sinaga Parman Sinaga Prio Sejati Ricky Perdana Handono Sahidul Anam Sigit Yulianto Sigit Yulianto