How to change over from vls hfo to uls hfo if fuels are not compatible

How to change over from vls hfo to uls hfo if fuels are not compatible

Switching Between High and Low Sulfur Fuels

Published Mar 9, 2017 12:18 PM by ExxonMobil Insights

In the latest edition of ExxonMobil Insights, technical liason manager John LaRese discusses best practices for changing between high and low sulphur fuels as vessels move in and out of Emission Control Areas.

The fifth and final video in the series tackles the issue of changing between high and low sulphur fuels as vessels move in and out of ECAs.

Fuel Switching When Entering ECA Zones

ECA zones bring two key challenges. First, how to ensure that vessels have compliant fuel on-board. And second, how to ensure fuel is managed and switched correctly so that when ships cross into an ECA they’re consuming the right sulphur level fuel and not cross contaminating.

Key tips for fuel switchover:

To help avoid these issues ExxonMobil has compiled five key fuel switching tips:

— Have a clear switchover procedure – It is important to ensure that the crew is familiar with the process. Ensure this is tested prior to entering crowded and restricted channels where there is a higher risk of grounding or collision.

Outline the best time to switchover – Differing for each vessel, operators must allow sufficient time for the fuel system to be flushed of all non-compliant fuel before arriving at an ECA limit.

— Know the correct temperature and viscosity – The viscosities of heavy fuel oil (HFO), ECA fuels and marine gas oil (MGO) are very different. Major engine manufacturers typically recommend a maximum temperature change of 2°C per minute to help avoid thermal shock.

Understand compatibility – In order to understand if fuels are compatible, an industry-standard spot test can be carried out on-board or a more thorough compatibility test can be requested from a reputable testing laboratory.

Choose the correct lubricant – Cylinder oils need to be sufficiently alkaline to neutralise any corrosive acidic sulphur in the fuel. However, when less sulphur is present, less sulphuric acid is produced. Too much alkalinity in the cylinder oil can lead to liner wear, while too little increases the risk of acid corrosion. When burning low-sulphur fuels in slow-speed engines, it is recommended that a lower base number lubricant is used.

The opinions expressed herein are the author’s and not necessarily those of The Maritime Executive.

билеты. билеты (2). Подготовка и запуск оборудования машинного отделения

Вопросы к экзаменационным билетам за 5 курс ЭСЭУ по теме

« Подготовка и запуск оборудования машинного отделения»

1. Preparation and putting into operation of cooling water system and lubricating oil system for DGs.

2. Preparation and putting into operation of lubricating oil and fuel oil systems for DGs.

3. Preparation and putting into operation of fuel oil, lubricating oil and compressed air systems for DGs.

4. Preparation and putting into operation of compressed air and cooling water systems for DGs.

5. Preparation for starting and starting-up DG №1. Connecting of DG №1 to the bus–bar. Changing over to the Main Cooling pumps. Starting-up the Main consumers.

6. Preparation for starting and starting-up DG №2. Putting DG №2 into parallel operation and connecting it to the bus-bar. Distributing the load between generators. Putting the DGs into automatic operation mode.

7. Preparation for starting the AB from cold condition. Heating-up of HFO.

8.Starting-up the AB from cold condition.

9. Changing over the AB operation from DO to HFO. Manual adjusting of AB exhaust gas oxygen content and smoke level. Putting the AB into automatic operation mode.

10. Preparation for starting and starting-up the HFO purifier.

11. Preparation for starting and starting-up the LO purifier.

12. Preparation for starting and starting-up the DO purifier.

13. Preparation for starting and starting–up the steam turbine cargo pumps. Putting it to the 25% of MCR.

14. Preparation and putting into operation of the ME systems.

15. ME turning over, blowing through and starting trials from Emergency (Local) Control station. ME control changing over from Emergency Control to ECR Remote control.

16. Starting and maneuvering the ME. Loading up the ME up to 85% of MCR.

17. Preparation for starting the TG.

18. Starting-up the TG.

19. Putting TG into parallel operation and connecting it to the bus–bar. Distributing the load between generators. Putting the TG into automatic operation mode and its priority selection.

20. Changing over the ME operation from DO to HFO.

Федеральное государственное бюджетное образовательное учреждение

«Государственный морской университет

имени адмирала Ф.Ф.Ушакова»
Специальность: ЭСЭУ

Дисциплина: Тренажерная подготовка вахтенных механиков с использованием тренажера машинного отделения на английском языке.

«____» __________________ 20___ г.
БИЛЕТ 1

«Государственный морской университет

имени адмирала Ф.Ф.Ушакова»
Специальность: ЭСЭУ

Дисциплина: Тренажерная подготовка вахтенных механиков с использованием тренажера машинного отделения на английском языке.

1. Do the test on the maintenance of the ER equipment.

2. Describe the procedure of preparation and putting into operation DG’s lubricating system.
Начальник кафедры _____________________ Экзаменатор ________________

«____» __________________ 20___ г.

Подготовка и ввод в эксплуатацию системы смазки ДГ–ров.

1. Проверить уровень масла в циркуляционных маслянных цистернах ДГ–ров №№1 и 2

2. Пополнить масло в циркуляционных маслянных цистернах ДГ–ров №№1 и 2 открытием клапанов поплнения

3. Закрыть клапаны поплнения циркуляционных маслянных цистерн ДГ–ров №№1 и 2 при достижении в них уровня масла 4050%

4. Запустить маслопрокачиваюшие насосы ДГ–ров №№1 и 2 – на мнемосхеме.

«Государственный морской университет

имени адмирала Ф.Ф.Ушакова»
Специальность: ЭСЭУ

Дисциплина: Тренажерная подготовка вахтенных механиков с использованием тренажера машинного отделения на английском языке.

1. Do the test on the maintenance of the ER equipment.

2. Describe the procedure of preparation and putting into operation DG’s fuel system.
Начальник кафедры _____________________ Экзаменатор ________________

«____» __________________ 20___ г.

4. Запустить маслопрокачиваюшие насосы ДГ–ров №№1 и 2.
Подготовка и ввод в эксплуатацию системы сжатого воздуха.

(Preparation and put to the operation of compressed air system).

1. Запустить компрессоры пускового воздуха №№1 и 2.

2. Открыть клапаны подачи пускового воздуха на ДГ–ры №№1 и 2.

3. Открыть клапан пополнения сжатого воздуха из баллона пускового воздуха в баллон воздуха хоз.нужд.

4. Открыть клапаны подачи контрольного воздуха (воздуха управления) от балона хоз.нужд на фильтр–осушитель и пневматику АСУ.

Федеральное государственное бюджетное образовательное учреждение

«Государственный морской университет

имени адмирала Ф.Ф.Ушакова»
Специальность: ЭСЭУ

Дисциплина: Тренажерная подготовка вахтенных механиков с использованием тренажера машинного отделения на английском языке.

1. Do the test on the maintenance of the ER equipment.

2. Describe the procedure of preparation and putting into operation compressed air system.

Начальник кафедры _____________________

«____» __________________ 20___ г.

1. Открыть клапан подачи ЗВ на кингстонный фильтр от донного или бортового кингстона.

2. Запустить вспомогательный насос охлаждения ЗВ, вспомогательный насос охлаждения НТК, вспомогательный насос охлаждения ВТК.

3.Открыть клапан подачи ЗВ и отвода ПВ на охладителе ПВ №1 или №2.

Федеральное государственное бюджетное образовательное учреждение

«Государственный морской университет

имени адмирала Ф.Ф.Ушакова»

Дисциплина: Тренажерная подготовка вахтенных механиков с использованием тренажера машинного отделения на английском языке.

1. Do the test on the maintenance of the ER equipment.

2. Describe the procedure of preparation and starting DG#1. Connecting it to the MSB bus-bar. Changing over to the main cooling pumps. Starting of the main consumers.

Начальник кафедры _____________________ Экзаменатор ________________

«____» __________________ 20___ г.

Федеральное государственное бюджетное образовательное учреждение

«Государственный морской университет

имени адмирала Ф.Ф.Ушакова»
Специальность: ЭСЭУ

Дисциплина: Тренажерная подготовка вахтенных механиков с использованием тренажера машинного отделения на английском языке.

1. Do the test on the maintenance of the ER equipment.

2. Describe the procedure of preparation and starting DG#2. Engaging it into parallel operation and connecting to the MSB bus-bar. Distribution of load between DGs. Putting into automatic operating mode.

Начальник кафедры _____________________ Экзаменатор ________________

«____» __________________ 20___ г.

Подготовка к пуску и пуск ДГ №2. Ввод ДГ №2 в параллельную работу и подключение его к шинам. Распределение нагрузки между генераторами. Постановка ДГ–ров в автоматический режим работы.

1. Произвести запуск ДГ №1 с помощью подачи пускового воздуха на цилиндры.

2. После запуска ДГ №1 перевести управление масляным насосом на режим «AUTO» и остановить маслопрокачивающий насос – на мнемосхеме.

3. Перевести ДГ №1 на дистанционное управление «REMOTE» Ручной ввод ДГ №2 в параллельную работу и подключение его к шинам ГРЩ:

4. Включить возбуждение электрогенератора №2 нажатием кнопки «ON» – на секции ГРЩ «DIESEL GENERATOR №2».

5. Подстроить регулятор частоты вращения органом регулирования таким образом, чтобы частота тока генератора №2 была немного выше 60 Гц Выставить возбуждение электрогенератора №2 потенциометром, тем самым добиться напряжения на клеммах генератора 440 В.

6. Выставить переключатель на секции синхронизации ГРЩ в положение генератора №2 «DG2» вводимого в параллель.

7. Подстроить регулятор частоты вращения ДГ№2 органом регулирования таким образом, чтобы частота генератора была немного выше частоты тока сети. В этом случае синхронизирующее световое колесо синхроноскопа будет медленно вращаться по часовой стрелке.

8. Подсоединить электрогенератор №2 к сети нажатием кнопки «CONN», когда синхронизирующий свет находится в одной или двух позициях перед верхним центральным индикатором.

9. C помощью лампы индикации «IN» убедится в том, что генератор №2 подсоединился к судовой сети.

10. Выставить переключатель на секции синхронизации ГРЩ в положение «OFF».

11. Увеличить нагрузку электрогенератора введённого в параллельную работу воздействием на задания регуляторов частоты вращения обоих генераторов уменьшая на ДГ№1 «LOWER» и увеличивая на ДГ№2 «RAISE» одновременно.

12. Перевести работу ДГ–ров в режим работы «AUTO» с пульта управления «POWER CHIEF», установить им приоритет «PRIOR1» или «PRIOR2» и выбрать им режим работы САЭЭУ (равная нагрузка «EQUAL LOAD»; оптимальная нагрузка «OPTIMAL LOAD»; циклическая нагрузка «CYCLE LOAD»)
Федеральное государственное бюджетное образовательное учреждение

«Государственный морской университет

имени адмирала Ф.Ф.Ушакова»
Специальность: ЭСЭУ

Дисциплина: Тренажерная подготовка вахтенных механиков с использованием тренажера машинного отделения на английском языке.

1. Do the test on the maintenance of the ER equipment.

2. Describe the procedure of preparation and starting-up the auxiliary boiler (AB) from cold condition. Heating up the HFO.

Начальник кафедры _____________________ Экзаменатор ________________

«____» __________________ 20___ г.

Подготовка к пуску ВК с холодного состояния. Подогрев ТТ.

1. Открыть клапан сообщения парогенератора с атмосферой «STGEN VENT VALVE».

2. Открыть клапан подачи ЗВ охлаждения на вакуумный конденсатор.

3. Запустить вакуумный насос.

4. Запустить главный конденсатный насос.

5. Запустить главный питательный насос вторичного контура

8. Открыть трехходовой клапан «DO/HFO SELECT» на подачу ДТ к ВК.

9. Запустить насос дизельного топлива «DO PUMP».

10. Запустить котельный вентилятор «COMBUSTION AIR FAN».
Федеральное государственное бюджетное образовательное учреждение

«Государственный морской университет

имени адмирала Ф.Ф.Ушакова»
Специальность: ЭСЭУ

Дисциплина: Тренажерная подготовка вахтенных механиков с использованием тренажера машинного отделения на английском языке.

1. Do the test on the maintenance of the ER equipment.

2. Describe the procedure of changing over the AB operation from DO to HFO. Manual adjustment the AB exhaust gas oxygen content and smoke level. Putting into automatic operating mode (ч.2).

Начальник кафедры _____________________ Экзаменатор ________________

«____» __________________ 20___ г.

MARPOL Annex I. Oil Record Book.

Модераторы: Breeze, TakeR

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How to change over from vls hfo to uls hfo if fuels are not compatible. Смотреть фото How to change over from vls hfo to uls hfo if fuels are not compatible. Смотреть картинку How to change over from vls hfo to uls hfo if fuels are not compatible. Картинка про How to change over from vls hfo to uls hfo if fuels are not compatible. Фото How to change over from vls hfo to uls hfo if fuels are not compatible

How to change over from vls hfo to uls hfo if fuels are not compatible. Смотреть фото How to change over from vls hfo to uls hfo if fuels are not compatible. Смотреть картинку How to change over from vls hfo to uls hfo if fuels are not compatible. Картинка про How to change over from vls hfo to uls hfo if fuels are not compatible. Фото How to change over from vls hfo to uls hfo if fuels are not compatible

kurt gedel
Смотрите
GUIDANCE FOR THE RECORDING OF OPERATIONS IN THE OIL RECORD BOOK
PART I – MACHINERY SPACE OPERATIONS (ALL SHIPS)

(MEPC.1/Circ.736/Rev.2 6 October 2011)

Example #22
Code I
De-bunkering of Fuel oil

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Code I
De-bunkering of Fuel oil

Да, How to change over from vls hfo to uls hfo if fuels are not compatible. Смотреть фото How to change over from vls hfo to uls hfo if fuels are not compatible. Смотреть картинку How to change over from vls hfo to uls hfo if fuels are not compatible. Картинка про How to change over from vls hfo to uls hfo if fuels are not compatible. Фото How to change over from vls hfo to uls hfo if fuels are not compatible, конечно под кодом «I»

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Доброе утро,уважаемые коллеги.Предстоит выдать на берег остатки топливо с повышенным содержанием серы.Могут принять как сладж.(по документам)Кто нибудь уже имел подобный опыт в плане грамотного оформления документов.Как выдача бункера?как выдача сладжа? Под литером H или C в журнал нефтяных операций заносится подобное. (Ведь все операции по сладжу расписаны, танки, объемы и прочие)Выдача будет производится из топливных танков топливными насосами)Может были какие циркуляры от компаний?

Если топливо выгружаешь на берег то нужно оформлять как debunkering Под литерой I. Пример есть резолюции IMO 736 (MEPC.1/Circ.736/Rev.1 Annex, page 8 ). Скачайте с интернета набирая в поисковике то что в скобках
Пример:
Example #22

De-bunkering of Fuel oil
Date Code Item No. Record of operations/signature of officer in charge
dd/mm/yyyy I xxxx MT of ISO-xxxxx HFO x.x % S de-bunkered from tanks:
xxxx MT removed from [Tank Name & Designation] now containing xxx MT
De-bunkered to «identity or name of receiver i.e. barge, tank truck or shore facility» in «Name of Port»
Start dd/mm/yyyy; hh:mm Stop dd/mm/yyyy; hh:mm
signed: (Officer-in-charge, Name & Rank) dd-MONTH-yyyy

Note: Include receipt & certificate from receiver for amount & type of fuel oil de-bunkered.

Вот резолюция в PDF формате. Скачайте.

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Доброе утро,уважаемые коллеги.Предстоит выдать на берег остатки топливо с повышенным содержанием серы.Могут принять как сладж.(по документам)Кто нибудь уже имел подобный опыт в плане грамотного оформления документов.Как выдача бункера?как выдача сладжа? Под литером H или C в журнал нефтяных операций заносится подобное. (Ведь все операции по сладжу расписаны, танки, объемы и прочие)Выдача будет производится из топливных танков топливными насосами)Может были какие циркуляры от компаний?

Я своим написал следующее

Pls note that copy of BDN, and receipt from receiver to be added to Oil Record book.

2. Bunker sample and ECA/SECA fuel change over record book
— normally we have to do record in Column marked by 1 date when fuel were consumed;
— in this case pls make remarks in Column marked by 2 » 155 mt of HFO 3,5 % were de-bunkered to «Name of bunker barge».
— signature in column 3 as usual;

3. Engine Log Book:
— record about de-bunkering of 155 mt of HFO 3,5 %;
— pls 155 mt should be deleted from your ROB;

Regulations for Vessel Air Emissions: Fuel Oil Change-Over Operations SSB No.: 04/2015

Ship Safety Bulletins (SSB)

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We issue Ship Safety Bulletins for the marine community. Visit our Website at www.tc.gc.ca/ssb-bsn to view existing bulletins and to sign up to receive e-mail notices of new ones.

Purpose

This bulletin advises stakeholders of the potential consequences of:

Background

During combustion, sulphur oxides form from the sulphur in the vessel’s fuel. This is why we now control the sulphur content in fuel. For vessels using emission control technology, the controls use an equivalent sulphur dioxide to carbon dioxide ratio.

The Regulations set air emission standards, including sulphur content limits in marine fuel, within the North American Emission Control Area (NA-ECA). These Regulations can be accessed through the Laws of Canada website managed by the Department of Justice Canada. Transport Canada will enforce these Regulations as set out in the Policy on Compliance and Enforcement of the Canada Shipping Act, 2001— TP 13585.

Main engines, auxiliary engines and boilers switching over to low sulphur fuels will create many challenges to vessels operating in the NA-ECA. As of January 1st, 2015, all vessels operating in the NA-ECA must use fuel that does not exceed 0.10% sulphur content.

Most marine diesel engines and boilers are designed to operate on HFO. If the operator does not make sure fuel switching is done carefully during the transition from HFO to LSFO (with a sulphur content of 0.1%), this can put a vessel’s machinery at risk and jeopardize the safety of the vessel, passengers and crew. This is why MARPOL Annex VI, Regulation 14.6, requires vessels using separate fuel oils, to carry a written procedure for the fuel oil change-over.

Challenges

Since changing from high to low sulphur fuels during operations may lead to several challenges, the vessel operator must take into account the different operating temperatures of the two fuels. If they don’t do this, the vessel risks propulsion failure, black out, and/or damage to the machinery.

HFO and LSFO have quite different operating temperatures. This means that a change-over operation not being done correctly may lead to a rapid fall or rise in temperature with increased chances of thermal shock to the equipment. Fuel systems also have to account for their difference in viscosity to avoid fuel pump failures, leaks, and clogged filters. The fact that HFO and LSFO are mixed in different ratios during the change-over procedure increases the risk of the fuels becoming incompatible; which may cause the engine to shut down.

Vessel-owners and operators need to take a measured, well informed and well documented approach to fuel switching. They should post these required procedures in the engine control room and the wheel house for easy reference.

The procedure must outline the time required for the fuel oil service system to be fully flushed of all fuel oil exceeding the applicable sulphur content specified by MARPOL, or authorized by permit according to vessel documents, before entering the NA- ECA.

Information a ship operator must record in a ship’s official log book as prescribed by the vessel’s Administration includes:

Assistance from Engine Manufacturer or Classification Society

Vessel owners may ask their engine manufacturer or classification society as appropriate to verify their change-over procedures and documents.

Hazardous Situations

Vessel owners/operators should do compliant fuel change-overs well in advance to avoid problems during the transiting passages, in proximity to shore or in narrow channels. Transport Canada has received reports of main engine shutdowns and blackouts, resulting in exposing the vessel to hazardous situations.

Owners/operators must also ensure vessels can access all available power of its engines it needs to maneuver in ice or in strong winds and currents. The engine manufacturer or classification society should be consulted as appropriate.

Other Considerations

Transport Canada further notes and agrees with the following recommendations for vessel owners and operators from the US Coast Guard Marine Safety Alert 2-15 on the subject:

Inspection and Reporting

A vessel experiencing loss of power, or a significant reduction in power which may result in a dangerous occurrence when navigating in ice or in other difficult sea conditions are to report the occurrence to Transport Canada Marine Safety and Security, by way of the nearest Marine Communications and Traffic Services Centre (MCTS) via the ECAREG or RMIC on the East and West Coasts respectively. The owner/operator must also make arrangements with their flag Administration or the Recognized Organization acting on its behalf as appropriate, to inspect the vessel and report their findings to Transport Canada.

Fuel changeover procedure from HFO to DO-Vice Versa

Fuel changeover procedure from HFO to DO has been discussed in this article in detail. With Strict Regulations for emission control coming in control, fuel changeover to cleaner fuel is mandatory. Here in this article we discuss about the fuel changeover on commercial ships.

Why Fuel Changeover is Needed

As per the direction by the International Maritime Organization, Emission control areas will be having sulphur content in the fuel used for running the engines on ship, should not be more 0.1 %. Following are the emission control areas:

3) United States and Canada

4) Caribbean Islands

So, in order to bring down the Sulphur content, we have to use the less Sulphur content fuel oil in order to comply with the standards set by the international body.
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Note: After 1 January 20200.50% m/m cap on Sulphur all over the world except ECA where 0.1 % limit will always exist and

1) Major Work on Main Engine

2) Before Coming to Dry Dock

3) Survey of boiler and no heating available for fuel

Before Fuel Changeover

Considering that the engine and other machinery are running on heavy fuel oil. Calculate the rough time needed for the system to have DO inside and HFO completely out of the system. It can be easily calculated by the program provided by the ship owner or charterer.

1) Top up the Low Sulphur Fuel Oil Tank Service Tank

2) Discuss with the engine crew about changeover procedure.

3) Changeover at least 1 generator on DO before the commencement of fuel changeover.
How to change over from vls hfo to uls hfo if fuels are not compatible. Смотреть фото How to change over from vls hfo to uls hfo if fuels are not compatible. Смотреть картинку How to change over from vls hfo to uls hfo if fuels are not compatible. Картинка про How to change over from vls hfo to uls hfo if fuels are not compatible. Фото How to change over from vls hfo to uls hfo if fuels are not compatible

4) Keep the clean filters in spare.

5) Stop the purifier and changeover them to purify DO is required.

6) Keep the drawing for the fuel oil lines ready and study them.

Fuel Changeover

Procedure given below is general and might differ little bit.
1) Reduce the load on the main engine to somewhere around 30 percent.

2) Close the heating to fuel oil heaters and let the fuel temperature to approximately 100 degree Celsius. Viscosity will also drop.

3) Keep the valve from the DO to the main fuel oil line open. Still crossover valve is closed which will feed DO to main system.

4) Open the DO valve and Close the HFO. This should be done gradually and slowly. Keep an eye on the fuel oil pressure.

5) Note the time and location of the vessel. And same needs to be entered in the logbook.

6) Now monitor the temperatures and viscosity of the fuel.

7) Open the cooler for MGO or DO. This is needed to maintain the viscosity and not to let it go below 2-3 CST. Low viscosity means serious issue with fuel pump barrel and plunger lubrication.

8) Lubrication of the main engine to be set as per the instructions given by the maker.

9) Shut off all the trace heating for fuel line heating.

10) Keep an eye on all the filters like auto back flush filter, duplex filters, generator filters.

11) Shut of the return valve to the settling tanks. You don’t want diesel oil to go back there. It will be wasted.

12) Check all around the engine room for any kind of leaks and uneven noise coming.

13) Check the temperature of each unit.

After Changeover Is Done

Following things to be checked after fuel changeover is completed:

1) Check the HFO settling tank level should not increase. If it is increasing that mean there entrance HFO in the line.

2) Back flushing filter timing can be changed to 12 hours or even more as now DO or MGO is in use.

3) Noise level from the pumps

4) Drain Tank Level

5) Write the down the time and location of ship and note it down in the official log book.

Note: Changeover to HFO is much easier as compare to DO. Only thing to take care is the heating part.

So this was the whole process to be followed while doing fuel changeover. If you have anything to share, please comment below.

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