Upgrades to Improve Efficiency for HVAC Providing air conditioning in the summer and heating in the winter, HVAC (Heating, Ventilation, dan Air-Conditioning) is an essential part of any building. Heat or cold air is supplied to the different rooms or offices by ducting and is normally thermostatically controlled. The following sections examine some modern methods […]
What is humidification process? Cooling and humidification What is Humidification Process? The process in which the moisture or water vapor or humidity is added to the air without changing its dry bulb (DB) temperature is called as humidification process. This process is represented by a straight vertical line on the psychrometric chart starting from the […]
Basic causes of corrosion on ships The ship has never been spared from corrosion. Generally, those affected by corrosion on ships are ship hull plates, ship propellers and ship steering because they come into direct contact with sea water. Understanding corrosion is a redox reaction between metals and various substances in their environment so as to produce […]
Steel Ship Corrosion Corrosion of steel vessels for small vessels, medium ships and large vessels will result in reduced strength and lifetime of the ship, so as to reduce the safety of the cargo and passenger safety of the ship. To avoid greater losses due to seawater corrosion, corrosion protection is required for the ship’s plates […]
Corrosion causing factors on ship If we observe the construction of ships, the type of rust that is often found is the type of rust caused by biological factors, namely rust caused by bacteria or marine animals attached to the hull (fouling). Fouling attached to the hull of this ship will one day be released due […]
Marine corrosion Corrosion is a subject that concerns various disciplines, or in other words, it connects the elements of physics, chemistry, metallurgy, electronics and recording. Most of those involved are those who have a background in one of these sciences but not all of them. So an electrochemist does not have to explore the corrosion aspects in […]
Types of buoys on ships A life jacket is a device designed to help the user, consciously or subconsciously, stay afloat with the mouth and nose on the surface of the water or while in the water. Devices designed and approved by the authorities in this case the Indonesian classification bureau for use by civilians in […]
10 Pelabuhan Terkenal di Indonesia Melihat geografis Indonesia yang merupakan negara kepulauan, tak heran jika Indonesia memiliki banyak pelabuhan. Berikut 10 pelabuhan terkenal yang dimiliki Indonesia 1. Pelabuhan Tanjung Priok Tanjung Priok yang merupakan pelabuhan di sebelah Utara Provinsi DKI Jakarta ini merupakan pelabuhan tersibuk di Indonesia. Tidak hanya mengangkut penumpang, aktivitas di pelabuhan ini […]
Repair of bronze rudders and propellers by resurfacing for ship The repair of bronze rudders and propellers normally requires the boat to be pulled up onto a slipway, lifted out of the water to the quayside or dry-docked. The resurfacing and machining of the rudder can be carried out by an experienced DIY person. However […]
Bronze rudder and propeller resurfacing techniques Most boat rudders and propellers are cast from good quality alloys in an attempt to reduce corrosion and other wear from immersion and operation in seawater. Depending on the design and requirements of the boat, a boat’s rudder can be fitted outboard, being hung aft, or inboard hung under […]