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    Steam and Water



Delta Mobrey helps marine avoid contamination

Market Overview 

The Marine Market is exceptionally diverse ranging from the military to  holiday cruises, container shipping and smaller pleasure craft.  The common denominator between them is the commercial need to keep the internal engineering and processes working to their optimal; so that their primary function, be that delivery, leisure or security can be maintained without interference. 

The marine market is anticipated to rise to a value of $188.57 billion by 2028.*  It is an industry that reflects the strength of the global economy, the more industrialised or consumer based a country is, the greater the need for delivered goods; the growth of the marine industry ebbs and flows with the economic changes within the world. The growth for 2028 is based on the greater industrialisation of countries, particularly those of China and India.  

Marine and Green

For the moving of goods, the marine market is one of the greener options, however as an industry the marine vessel market is still looking to reduce its level of C02 emissions by 40%. Within the UK there are requests to the government from Marine UK for an investment of up to £1 billion to enable the UK to reach its carbon zero targets by 2050.  

Whilst this may or may not be attainable, it is imperative that the engines and systems on board both current and future vessels, remain fully functional and reduce possible pollutants and contamination.  This is where the world of process instrumentation can assist the marine industry. 

Marine Boilers – Oil in Water Solution 

There are products specifically designed to detect oil in water.  An example is the Delta Mobrey 442SD and the Delta Mobrey 402SD combined with the Delta Mobrey MCU200 Controller. The combination of these products creates an electronic system to protect marine boilers, by ensuring the boiler feedwater is not contaminated with oil. This type of contamination frequently occurs as condensing steam runs through the ship’s system before being returned to the boiler. 

Any leaks may cause oil to enter the circulating condensate and can result in serious boiler damage by overheating and could result in reduced water flow and heat transfer. To prevent this the Delta Mobrey 442SD sensors are installed across the feed-water pipelines; while Delta Mobrey 402SD sensors are designed for installation within the vessels’ tanks; connected to the feed-water pipework. The sensors detect the presence of the oil and signal an alarm via the Mobrey MCU200 Controller. A ship’s crew is then aware of the problem and can investigate before any substantial damage is done. 

Ballast – Oil and Water 

Another example of where Delta Mobrey can assist the marine industry in being green is to provide a method of determining the mixture of Oil and Water within a tank.  Ballast water can be discharged into the sea, but it’s imperative to ensure that this water is not contaminated with oil, if it is it cannot be emptied directly into the sea. No marine vessel is allowed to empty directly into the sea closer than 50 nautical miles from land and in a depth of 200 metres minimum, for vessels which are out on the open water the preference is for 200 nautical miles from land.  

So, when in the correct placement, the ship’s dirty ballast water or oil contaminated water may be discharged by gravity below the water line, on the provision that enough time has elapsed to allow proper oil/water separation. Interface detectors are used to examine the ballast water before the discharge, to ensure the height of the interface is safe enough to avoid oil being discharged during this process. The Delta Mobrey 402SD sensors are used in these applications with a Delta Mobrey MCU200 Controller to detect this interface. 

Ballast Exchange 

Ballast tanks need to be emptied and filled depending upon their location, the amount of cargo and the amount of fuel on board.  Ballast has been used in shipping for centuries, but since the use of steel hulled vessels the use of water is used to the control the amount of ballast.   

Ballast water reduces stresses on the vessel’s hull, it compensates for the weight loss due to consumption of water and fuel, improves the maneuverability with sufficient vessel draft and ship propeller immersion, and helps in improving living conditions of the crew aboard by reducing vibrations and uncontrolled vessel’s movements.  

The level of ballast water needs to be measured and monitored to ensure it is at the levels needed to assist the vessel’s required function.  The range of Delta Mobrey 9700 tank mounted or submersible transmitters, are designed to provide precise and reliable level measurement of in-tank liquids.  They continue to perform in extreme conditions, offer high performance with long term stability and are virtually maintenance free.  These transmitters will provide the Ballast Water Management Officer with the data needed to ensure the correct levels are maintained for good ballast exchange. 

These are just few of the examples of how process instrumentation assists the marine industry to stay afloat.  The smooth running of vessels allows organisations to focus on their primary function, that of delivering goods where they are needed. If you would like to understand just how Delta Mobrey can help you and the marine industry, then contact us on: 01252 729140 or sales@delta-mobrey.com

* data from https://www.fortunebusinessinsights.com/marine-vessel-market-102699 


About Delta Mobrey

For more than 100 years, Delta Mobrey Limited has been a world-leading specialist in the design and manufacture of quality process instrumentation for the measurement and control of fluids and gases in all industrial plant and equipment.

Trusted quality – proven value: quality and reliability have always formed the cornerstone of our success, recognised by industry with international approvals covering every aspect of our manufacturing and product portfolio, together with certifications spanning all areas of hazardous and regulated environments.

Global team – local support: as a global organisation, Delta Mobrey is totally committed to delivering the best possible customer service and technical support, ensuring a lifetime value of ownership, together with a flexible and responsive approach to meet our customers’ individual demands.

About Delta Mobrey