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Gard: Look out for fuel leaks and unshielded hot spots in engine room

Gard warns shipowners that most fires onboard ships start in the engine room and the frequency of such fires is on the rise as well as gives their recommendations on how to prevent them.

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Norwegian maritime insurance company Gard on Wednesday (15 June) published an insight informing  that the majority of fires onboard ships start in the engine room and the frequency of such fires is on the rise. An excerpt of the article is as follows:

Introduction

Every year fires on board ships lead to loss of lives and severe damage to the ships themselves. Most fires on board ships originate in the engine room where the three ingredients for a fire, namely fuel, oxygen and a source of ignition, exist in abundance. These do not only start the fire but also feed and intensify it further. Fire safety is not only about detecting and fighting a fire, but also about preventing it from igniting in the first place.  

In this article we will focus on how these fires can be prevented. We will touch upon some of the main causes of engine room fires and explore insights from our claims data to understand the frequency of such fires before setting out some recommendations on how to mitigate the risks of these fires occurring.

How do most engine room fires start?

A review of Gard’s hull and machinery (H&M) claims for the years 2017-2021 related to fires and explosions on vessels, shows that nearly 60% of all such fires originated in the engine room. Nearly two thirds of these engine room fires occurred on the main and auxiliary engines or their associated components such as turbochargers. The majority of these incidents were caused by a failure in a flammable oil system, most often in the low-pressure fuel oil piping, allowing spray of oil onto an unprotected hot surface. Below is an example from our claims portfolio.

Case study

A copper pipe that was part of the fuel oil pressure gauge supply pipework for one of the auxiliary engines fractured. Due to a missing metal spray shield the fuel sprayed onto the unprotected hot surfaces of the nearby turbocharger and the exhaust system which had temperatures of more than 400 °C. The fuel ignited causing extensive damage to auxiliary engines and power distribution cables. The vessel was out of service for 40 days to carry out repair works.

Investigation by experts showed that the copper pipe that fractured did not match the original design and had a lower wall thickness. There was no record of any previous repairs carried out to the fuel system pipework. The pipe assembly on the other three auxiliary engines appeared to be of original installation comprising of a steel pipe. The spray shield was removed during maintenance and not re-installed. Insulation was also suspected to be inadequate since exposed sections around the exhaust manifold and turbocharger were noticed on other three auxiliary engines. The investigators concluded that the heat shielding arrangements on the fire damaged auxiliary engine did not meet the relevant SOLAS regulations, II-2/2.2.6.1.

Gard: Look out for fuel leaks and unshielded hot spots in engine room

In the above case, there are two main aspects which need to be highlighted.

First is the leakage of flammable oil; and

Second is the inadequate protection to prevent highly flammable fuel from coming in contact with a source of ignition.

Leakage or spray of fuel due to a failure in the oil system

Below we list some of the most commonly occurring causes of fuel spraying from low pressure piping systems. The list is by no means exhaustive, but a review of past Gard cases has shown that below listed failures occur frequently.

Piping, piping connections and other associated components, such as o-rings, were not original parts or of a type recommended by the manufacturer. In some cases, modifications had been done by the crew under existing management, whilst in others the crew were not aware of such modifications as they had been done under previous ownership or management.

Piping connection had not been tightened to the required torque and with time it loosened due to, for example, vibrations. Another reason may be incorrect assembly after maintenance.

Bolts for flanges or filters breaking due to fatigue caused by overtightening over a period of time. In some cases, securing bolts were also found loose or missing altogether.

Fatigue fracture of pipes. Such pipes are typically not well supported along their entire length, which causes excessive stress due to vibrations. Lack of support may be attributed to the design or failure to reinstall the holding brackets after maintenance.

Fuel oil filter covers coming loose and displacement of the spindle from the top cover for various reasons.

Rupture of rubberized hoses due to degradation caused by the heat generated from nearby machinery.

Oil coming in contact with hot surfaces

Shielding can either be by insulating hot spots with thermal insulation or anti-splashing tapes, and/or by using physical barriers such as spray shields. Some typical issues with insulation which we have seen in our claims portfolio are:

  • the quality may differ from yard to yard,
  • it can deteriorate with age,
  • it may not have been fixed back properly after maintenance, and
  • it can become soaked with oil over a period of time due to minor leakages.

As for physical barriers:

they may not have been part of the original design and therefore not fitted, or where fitted, they may not have been installed back in place after maintenance has been carried out on the oil system, as in our case study, and as time passes may even be misplaced.

Older vessels need more attention

One of the factors which must be considered when assessing fire risks in engine rooms is the age of vessels. The risk of leakages from machinery may increase as ships grow older. We discuss this further below but highlight here some of the main issues that can increase the risk of fire in the engine room on older vessels.

Protection of hot surfaces may degrade, with the quality of insulation may deteriorating thereby increasing the probability of ignition and risk of fires.

Older vessels can face cuts to their maintenance and safety budgets as they near the end of their service life.

A vessel may have changed ownership and management a number of times during its life, and this can have a direct impact on the consistency of maintenance in the engine room.

Typical hotspots in the engine room

Based on previous fire incidents handled by Gard, we have found that the below listed areas acted as a source of ignition in most cases. The temperature of these areas can easily exceed 500 °C which may be well above the oil’s auto ignition temperature.

  • Exhaust manifold, pipes and associated flanges
  • Exposed areas of boilers
  • Turbochargers
  • Indicator valves on cylinders
  • Heater for purifier units
  • Electrical wires/components and switchboards. Melting or smoldering of cables can also contribute to the transmission of heat 

Data insights – do the numbers tell their own story?

In Gard, when analyzing trends, we, just like Cefor (The Nordic Association of Marine Insurers), follow closely the frequency trends of incidents over a given time period. This way we are also able to account for the growth in our portfolio from one year to the next. Over the five-year period, from 2017 – 2021, the frequency for the various Hull and Machinery (H&M) claims areas is showing a downward trend except for fires in engine room. This rise is largely due to fires occurring either on main engines or auxiliary engines which, as mentioned earlier, make up majority of all engine room fires.

Gard: Look out for fuel leaks and unshielded hot spots in engine room

Frequency of engine fires (GARD H&M data)

For the period 2017 - 2021, the average annual frequency of engine room fires is 0.13%, which means out of every 10,000 vessels, 13 vessels have had one such fire incident each year. This may not seem like a high number, but the consequences of such fires can be serious for human life, environment, and property causing significant business losses.

One of the main concerns is that the frequency of both main and auxiliary engine fires shows a rising trend. The highest frequency of fires on main and auxiliary engines is seen on passenger and container ships. It is almost twice the Gard 5-year average. Within the container ship segment, the frequency is the highest for feeders (<3,000 teu).

Cefor in its most recent ‘Fire Trend Analysis’ publication has made similar conclusions.

Note: The full Gard insight article written by the following authors can be found here

Authors: 

  • Siddharth Mahajan, Senior Loss Prevention Executive, Singapore
  • Svend Leo Larsen, Senior Claims Adviser, Bergen
  • Kim Watle, Senior Business Analyst, Oslo

 

Photo credit and source: Gard
Published: 24 June, 2022

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Bunker Fuel

Singapore: Bunker fuel sales down by 9.1% on year in January 2025

4.46 million mt of various marine fuel grades were delivered at the world’s largest bunkering port in January, a drop from 4.91 million mt recorded during the similar month in 2024, according to MPA data.

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Singapore: Bunker fuel sales down by 9.1% on year in January 2025

Sales of marine fuel at Singapore port decreased by 9.1% on year in January 2025, according to Maritime and Port Authority of Singapore (MPA) data.

In total, 4.46 million metric tonnes (mt) (exact 4,461,710 mt) of various marine fuel grades were delivered at the world’s largest bunkering port in January, a drop from 4.91 million mt (4,906,100 mt) recorded during the similar month in 2024.

Deliveries of marine fuel oil, low sulphur fuel oil, ultra low sulphur fuel oil, marine gas oil and marine diesel oil in January (against on year) recorded respectively 1.66 million mt (zero from 1.66 million mt), 2.43 million mt (-15% from 2.86 million mt), 900 (+100% from zero), 3,100 mt (-77% from 13,500 mt) and zero (from zero).

Singapore: Bunker fuel sales down by 9.1% on year in January 2025

Bio-blended variants of marine fuel oil, low sulphur fuel oil, ultra low sulphur fuel oil, marine gas oil and marine diesel oil in January (against on year) recorded respectively 16,000 (+100% from zero), 92,000 mt (+103% from 45,300 mt), zero (from zero), zero (from zero) and zero (from zero).

LNG and methanol sales were posted respectively at 6,600 mt (-36.5% from 10,400) and zero (from zero).

A complete series of articles on Singapore bunker volumes by Manifold Times in 2024 can be found below:

Related: Singapore: Bunker fuel sales down by 5.2% on year in December 2024
Related: Singapore: Bunker fuel sales gain by 4.6% on year in November 2024
Related: Singapore: Bunker fuel sales gain by 10.8% on year in October 2024
Related: Singapore: Bunker fuel sales continue to increase by 2.8% on year in September 2024
Related: Singapore: Bunker fuel sales increase by 7.2% on year in August 2024
Related: Singapore: Bunker fuel sales up by 3.3% on year in July 2024
Related: Singapore: Bunker fuel sales gain 8.7% in June 2024
Related: Singapore: Bunker fuel sales increase by 6.7% in May 2024
Related: Singapore: Bunker fuel sales down by 0.6% on year in April 2024
Related: Singapore: Bunker fuel sales increase by 6.4% on year in March 2024
Related: Singapore: Bunker fuel sales up by 18.8% on year in February 2024
Related: Singapore: Bunker fuel sales up by 12.1% on year in January 2024

 

Photo credit: Maritime and Port Authority of Singapore
Published: 14 February, 2025

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Bunker Fuel

Singapore-based Straits Bio-LNG aims to deliver 250,000 mt of bio-LNG bunker fuel per year

Firm is currently in advanced stage of testing breaking down Empty Fruit Bunch through an established biological process with high enzyme concentration in its R&D facility in Malaysia to produce bio-LNG.

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Singapore-based Straits Bio-LNG aims to deliver 250,000 mt of bio-LNG bunker fuel per year

Straits Bio-LNG, a privately owned supplier of bio-LNG, is aiming to deliver 250,000 metric tonnes (mt) of bio-LNG per year in Singapore, according to SEA-LNG on Thursday (13 February).

The Singapore-based company, led by SK Tan as CEO, is doing so in response to the growing demand for LNG. LNG bunkering volumes have grown significantly in key bunkering hubs as more LNG-fuelled vessels have entered into operation. 

The Maritime and Port Authority of Singapore (MPA) saw a dramatic four-fold increase in 2024 to almost 340,000 mt, SEA-LNG said in a statement announcing Straits Bio-LNG joining the coalition. 

Headquartered in Singapore, the company boasts a growing team led by SK Tan as CEO.  

Yiyong He, Director at Straits Bio-LNG, said: “We’re firmly convinced in the viability of the LNG pathway to decarbonise the shipping industry. With its very low carbon intensity and improving commerciality, liquified biomethane will be a critical piece of the puzzle for decarbonising the sector.”

“By joining SEA-LNG, we’re proud to be part of a collection of first movers making real strides to make the LNG pathway a tangible reality today.”

Straits Bio-LNG aims to reach its bio-LNG supply goal by using pioneering methods. It is currently in the advanced stage of testing breaking down Empty Fruit Bunch (EFB) through an established biological process with high enzyme concentration in its R&D facility in Malaysia. 

Both Palm Oil Mill Effluent (POME) and EFB are sustainable biomass resources listed in the “List of Materials Eligible for ISCC EU Certification” and are therefore compliant with the European Union’s Renewable Energy Directive (RED).

Peter Keller, chairman of SEA-LNG, added: “The Port of Singapore is the largest global bunkering hub. As seen in our View from the Bridge report, 2024 saw record growth in LNG and liquified biomethane bunkering, but we need more fuel to meet upcoming demand.”

“The use of liquefied biomethane as a marine fuel can reduce GHG emissions by up to 80% compared to marine diesel on a full well-to-wake basis. When produced from the anaerobic digestion of waste materials, such as manure, POME or EFB, methane that would otherwise be released into the atmosphere is captured, resulting in negative emissions of up to -190% compared with diesel."

An independent study by the Maritime Energy and Sustainable Development Centre of Excellence at Nanyang Technical University in Singapore found that pure bio-LNG could cover up to 13% of the total energy demand for shipping fuels in 2050, rising to 63% for a 20% blending ratio. 

SEA-LNG added MPA has firmly established itself as a leader in the LNG pathway, with suppliers such as Straits Bio-LNG reinforcing this position. 

Recently, the port launched an Expression of Interest (EOI) to explore scalable solutions for sea-based LNG reloading to complement the existing onshore LNG bunkering storage and jetty capacities and the supply of e/bio-methane as marine fuel in the Port of Singapore.

“Straits Bio-LNG will play a critical role in furthering the expansion of liquified biomethane at scale to meet the demand and continuing to showcase the LNG pathway as a practical and realistic solution for shipowners to decarbonise their operations, starting today,” it said. 

Related: Singapore: MPA launches EOI to expand LNG bunkering services amid growing demand

 

Photo credit: Straits Bio-LNG
Published: 14 February, 2025

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Winding up

Singapore: Final meetings scheduled for Gagarmayang Maritime and related companies

Other companies involved are Pramoni Maritime Pte Ltd, Wulansari Maritime Pte Ltd, Anjasmoro Maritime Pte Ltd and Indradi Maritime Pte Ltd.

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The final meetings of members of Gagarmayang Maritime Pte Ltd and related companies, has been scheduled to take place on 12 March, according to the company’s liquidators on a notice posted on Wednesday (12 February) on the Government Gazette.

The other companies involved in the matter are Pramoni Maritime Pte Ltd, Wulansari Maritime Pte Ltd, Anjasmoro Maritime Pte Ltd and Indradi Maritime Pte Ltd.

The meetings will be held by way of electronic means at 11am for the purpose of having an account laid before the members showing the manner in which the winding up has been conducted and the property of the company disposed of and of hearing any explanation that may be given by the liquidators.

The details of the liquidators are as follows:

Hamish Alexander Christie
c/o H.A. Christie & Co
20 Collyer Quay, #11-05
Singapore 049319

Related: Singapore: Wulansari Maritime Pte Ltd and related companies to be wound up voluntarily
Related: Creditors meeting for Anjasmoro Maritime and affiliated sister firms to be held in Oct

 

Photo credit: Benjamin-child
Published: 14 February, 2025

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