What is a HFO power plant?
Heavy Fuel Oil (HFO) is a general term used to describe a range of fuel oils made from the heavier parts of crude oil after the lighter parts are removed to produce petrol, diesel and other light products. The most common technologies used to generate power from HFO are reciprocating engines and gas turbines.
What is HFO storage tank?
– Fuel oil transfer system – This system receives and stores fuel and delivers it to settling tanks. Fuel oils are loaded through deck fill connections that have sample connections provided to permit the fuel to be sampled as it is taken aboard. HFO is loaded in storage tanks fitted with heating coils.
What is the difference between HFO and diesel?
Marine diesel is similar to diesel fuel, but has a higher density. Unlike heavy fuel oil (HFO), marine diesel oil does not have to be heated during storage. In the strict sense, the term marine diesel oil mainly refers to blends with a very small proportion of heavy fuel oil.
What is HFO and LDO?
Light Diesel Oil (LDO) is used for initial start up while heavy fuel oil (HFO) is used for flame stabilization, mill change over and during low load operation of boilers.
How do HFO power plants work?
How Power Plants Work. The first stage in a power plant’s operation is loading the HFO into the plant. A giant furnace will then begin heating this fuel until heat energy is released. This heat energy is used in a boiler – cold water sitting in pipes is heated up until the water is boiled into steam.
How efficient are oil power plants?
Typical thermal efficiency for utility-scale electrical generators is around 37% for coal and oil-fired plants, and 56 – 60% (LEV) for combined-cycle gas-fired plants. Plants designed to achieve peak efficiency while operating at capacity will be less efficient when operating off-design (i.e. temperatures too low.)
How do HFO engines work?
HFO or heavy fuel oil is the most widely used type of fuels for commercial vessels. The fuel oil releases energy to rotate the ship propeller or the alternator by burning fuel inside the combustion chamber of the engine or to generate steam inside the boiler.
Why is HFO used as main fuel?
Since the middle of the 19th century, HFO has been used primarily by the shipping industry due to its low cost compared with all other fuel oils, being up to 30% less expensive, as well as the historically lax regulatory requirements for emissions of nitrogen oxides (NOx) and sulfur dioxide (SO2) by the IMO.
Is HFO a diesel?
Heavy fuel oils are mainly used as marine fuel, and HFO is the most widely used marine fuel at this time; virtually all medium and low-speed marine diesel engines are designed for heavy fuel oil….Heavy Fuel Oil (HFO)
| Marine fuel | Max. sulfur content |
|---|---|
| Ultra low sulfur fuel oil (ULSFO) | 0.1% |
Why do ships use HFO?
Where is LDO used?
Light diesel oil, or LDO, is a blend of components from the distillation process of crude. It is used in engines with an rpm less than 750, such as boilers and furnaces. LDO is also referred to as distillate fuel or marked oil.
What is the meaning of HFO?
Heavy Fuel Oil
Heavy Fuel Oil (HFO) is a category of fuel oils of a tar-like consistency. Also known as bunker fuel, or residual fuel oil, HFO is the result or remnant from the distillation and cracking process of petroleum.
What kind of fuel is used in a HFO plant?
Light Fuel oil (LFO) is used as back-up fuel. The feeder unit feeds HFO and LFO from the fuel tanks to the fuel circulation system. The feeder unit has separate lines for HFO and LFO.
Where does the suction come from in a HFO plant?
HFO Feeding and Boosting System The suction from HFO day tanks or LFO day tank as selected by the change over valve (vo1) and delivers to fuel Feeder unit. Feeder units are fitted with an inter-connection valve for emergency use.
Which is the main function of the HFO system?
HFO Feeding and Boosting System The main function of Feeder and Booster unit is to provide the engine (s) with fuel oil of correct flow, pressure, viscosity and degree of purity. Our power plant is designed for using Heavy Fuel Oil (HFO) as the main fuel.
How are HFO and LFO fed into the circulation system?
The feeder unit feeds HFO and LFO from the fuel tanks to the fuel circulation system. The feeder unit has separate lines for HFO and LFO. The unit includes two feed pumps for HFO and Two feed pump for LFO. One of the HFO pumps is normally in operation, while the other one is on standby.