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All Journal Marine Science and Technology Journal
Suyanto Suyanto
Universitas IVET Semarang, Indonesia
Engineering

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Journal : Marine Science and Technology Journal

 1 
Pengkondisian Udara Rumah Tinggal di Semarang Suyanto Suyanto; Sri Pramono
Marine Science and Technology Journal Vol 1 No 1 (2020): Marine Science and Technology Journal
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/maristec.v1i1.1282

Abstract

The air condition in residential or office buildings needs to be sought so that the conditions are fresh and comfortable for the residents. Indonesia with a tropical climate has hot temperatures and high humidity levels. For this reason, the application of air conditioning systems is needed. The study was conducted by survey to record the size of the house, the area of ventilation, the number and size of air conditioners used, the temperature of the use of air conditioners, and the monthly electricity bill. Data is processed to obtain specific data on the adequacy of ventilation, the level of ACusage, the temperature of AC usage, and the level of AC electricity usage. The results of this study are that 77% of residential houses have ventilation areas that meet minimum requirements. Houses that use AC as much as 60%. Almost all air conditioners are used in sleeping rooms. AC users mostly choose cool comfortable temperatures, which is 55%. As for whochose the temperature of the use of air conditioners in optimal comfortable conditions by 35%. While those who choose warm temperatures to comfort in the use of AC as much as 10%. The average electricity bill due to the use of AC is 34% of the total residential electricity bill.
Penentuan Kebutuhan Pompa Air Bersih Fakultas Kemaritiman UNISVET Suyanto Suyanto
Marine Science and Technology Journal Vol 2 No 1 (2021): Marine Science and Technology Journal
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/maristec.v2i1.1783

Abstract

Determining the need for clean water needs to be planned properly. In determining the need for clean water, it is necessary to estimate the number of occupants or building users on average every day. On this basis, it is necessary to calculate the average daily water requirement. The determination of the size of the pipes and water pumps also needs to be taken into account based on the consideration of the initial information on the need for water supply. The piping installation and the determination of the pump supplying clean water in the Faculty of Maritime Affairs have not been based on the calculation of the need for clean water at the Faculty of Maritime Affairs. For this reason, this article will be presented calculation of the need for clean water in the Maritime Faculty building, and the specifications of the pump that will need to be used. With the calculation and analysis of the existing data, it is obtained that the average clean water requirement is 3.36 m3/hour in peak conditions of 6.72 m3/hour. The pipe used is PVC with a diameter of 1.5 inches. The pump used is 750Watt of electricity, 6m of suction power and 12m of thrust, and a capacity of 240 lt/min.
Perencanaan Kebutuhan Pendinginan Udara Auditorium Universitas Ivet Suyanto Suyanto; Riyanto Wibowo
Marine Science and Technology Journal Vol 1 No 1 (2020): Marine Science and Technology Journal
Publisher : Universitas Ivet

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

Abstract

The need for air cooling is currently considered important, especially for cooling meeting rooms and auditoriums. Thus the cool and comfortable air conditions can be presented. This research was conducted to determine the air cooling load in the Ivet University Auditorium. The method used is to calculate the amount of heat that comes from outdoors and indoors. The amount of heat from the room is the heat from the sun's heat that propagates through walls, roofs, glass windows and doors. The heat that comes from inside the room is sourced from humans as occupants, lights, and other electronic equipment. From the results of data analysis it can be determined that the cooling load of Ivet University Auditorium is 11,1100 Watts or equivalent to 379073 Btu / hr. The total AC power needed to cool the room is 42 PK.
Pengaruh Variasi Evaporator Terhadap Unjuk Kerja Mesin Pendingin Menggunakan Refrigerant R134a Suyanto Suyanto; Ari Setiawan
Marine Science and Technology Journal Vol 3 No 1 (2022): Marine Science and Technology Journal
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/maristec.v3i1.2245

Abstract

Cooling machines are currently equipment that cannot be separated from human life. For this reason, a lot of research on cooling machines has been carried out to further optimize the work of the machine. This research was conducted to determine the effect of variations in the length of the evaporator pipe on the performance of the cooling machine. Evaporator pipes are varied with a length of 1 meter, 2 meters, and 3 meters. Other parameters are the length of the condenser pipe of 10 meters, the length of the capillary tube of 1.6 meters, and the freon pressure of 10Psi. Based on the results of measurements and calculations of 3 types of evaporator pipe variations, it can be concluded that variations with 1 meter long evaporator pipe get the best results, namely with an average low temperature of 0,920C, a refrigeration effect of 113.53 kJ/kg, and a COP of 2.62.
Co-Authors ARI SETIAWAN Riyanto Wibowo Sri Pramono