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Chelsea Technologies Group Limited

Telephone:

+44 (0)2084 819 000

Fax:

+44 (0)2089 419 319

Address:

55 Central Avenue
West Molesey
Surrey
KT8 2QZ
United Kingdom

Keywords:

Exhaust Cleaning, Low Sulphur Fuels, Turbidity, Greenship, Ferrybox, Environmental Monitoring, Salinity, Oil Spills, Fluorometers, Ballast Water Monitoring, Towed Oceanographic Platforms, Oceanographic Instrumentation, Hydrocarbon Detection, Oil Spill Monitoring, Algae Detection, ISO, Conductivity, Temperature, Depth, Plankton Sampler, Acoustics Transducers & Hydrophones, Sonar Evaluation Systems, Naval Oceanography Survey

Contact Name:

Loren Hiller

Contact Position:

Marine Sales Manager

Summary:

Design, development and manufacture of oceanographic sensors and systems. Applications include environmental monitoring, sonar, military oceanographic systems, ballast water monitoring and exhaust gas scrubbing instrumentation

Description:

A team of engineers and scientists are engaged in the design and manufacture of a range of sensors and systems for the marine, environmental, defence, homeland security, industrial process control and life science markets.  

For 50 years, customers have been using our high quality sensors and systems in a wide range of applications -  submariners are using  them to understand the environment they pass through, water authorities are using them to test water supplies to guard against chemical attack by terrorists. Scientists are using our sensors to monitor oceanic algae to tackle climate change and shipping companies have installed state of the art in-line sensors to monitor their exhaust gas cleaning systems and ballast water in order to prevent contamination of seas. Oil companies are using our sensors to detect subsea pipeline leaks and monitor oil spills. Demand for the Chelsea sensors and systems  has also come from the food and automobile industries. 

 

PRODUCTS/SERVICES

Sea Sentry – DNV GL Compliant Wash Water Monitor for Ship Exhaust Gas Cleaning Systems

Ship exhaust gas emissions from marine diesel engines release harmful gases and particulate matter into the atmosphere. Of particular concern are emissions comprising of NOX, SOx and hydrocarbon particulates, together with CO2, which are detrimental to human health and the environment.  To make ships greener and prevent pollution, the IMO has established a number of new regulations to reduce emissions.   One method of doing this is to clean emissions before release using an exhaust gas cleaning system. All varieties of wet scrubber systems use wash water which must be monitored at all times to avoid discharges that may exceed regulations & damage the environment.   CTG's Sea Sentry provides a wash water monitoring system - it monitors both the sensor inlet and outlet of wet exhaust gas scrubber systems. It is a turnkey solution which measures Polycyclic Aromatic Hydrocarbon, Turbidity (to ISO 7027: 1999), Temperature and pH. It incorporates an integral pump, de-bubbler, pressure relief valves and a flow meter.

FastBallast Portable Ballast Water Compliance Monitor

Chelsea Technologies Group’s FastBallast Portable Ballast Water Compliance Monitor is capable of determining the phytoplankton cell density of ballast water at the IMO D2 & USCG Discharge Standards (10 to 50 um range). The Compliance Monitor is available as a portable dual function discrete and flow-through analysis system, solely as a portable discrete sampling system or as a fully integrated system for continual flow-through analysis.   FastBallast is available in 3 separate solutions; a Discrete Sample Compliance Monitor, a Dual Function Compliance Monitor and as an Integrated Compliance Monitor. FastBallast’s cutting edge design enables such a rapid and detailed analysis that it is the only technology that can operate in flow-through mode, providing a continuous, real time update on discharge compliance. Therefore is can dramatically increase the volume of water analysed, producing a more representative sample.  FastBallast is fully automated, so all that is required is to pour a sample in to the chamber and press ‘run test’, FastBallast then displays results using a simple Pass/Fail outcome at the IMO D2 & USCG Discharge Standards (10 to 50 um range). It also displays a cell density number so that whoever is testing can see how close to the regulation boundary the sample is.

FastBallast Integrated Ballast Water Compliance Monitor

Chelsea Technologies Group’s FastBallast Integrated Ballast Water  Compliance Monitor is an ultra-sensitive solution for continually monitoring large volumes of inlet and outlet water of a ballast water treatment system at the D2 (10 to 50 µm) regulatory limit. High sampling rates, made possible by incorporating a Single Turnover One Pulse (STOP) detection method, makes FastBallast better suited to analysing low densities of phytoplankton cells at the D2 threshold than more common (Multiple Turnover) PAM methods. FastBallast’s cutting edge design enables such a rapid and detailed analysis that it is the only technology that can operate in flow-through mode, providing a continuous, real time update on discharge compliance. Therefore is can dramatically increase the volume of water analysed, producing a more representative sample.

Oil Spill detection and monitoring

A proven range of in-situ sensors optimised for monitoring crude and refined oil from coastal margins to deep ocean. Originally designed for military use these highly reliable, robust, high sensitivity fluorometers are in use around the world. There has been an unprecedented demand for these sensors following the oil spill in the Gulf of Mexico.

UniLux Fluorometer

Single parameter fluorometer which can detect one of Chlorophyll a, Phycocyanin, Phycoerythrin for algae monitoring and Rhodamine or fluorescein for dye tracing applications. It is also available as a nephelometer for turbidity monitoring.

TriLux Fluorometer

Multi-wavelength, digital fluorometer.  Applications include in-situ chlorophyll a & algae class studies, environmental monitoring, dye tracing, particulate studies, cell culture monitoring and process control.

UviLux Fluorometer

The UviLux is a family of sensitive, low cost, digital in-situ UV fluorometers designed for real-time monitoring of concentrations of refined & crude hydrocarbons, Coloured Dissolved Organic Matter (CDOM) and Tryptophan, a surrogate marker for Biological Oxygen Demand (BOD), optical brighteners and bacterial contamination in waste, recycled and natural water supplies.

TurbiLux Fluorometer

Sensitive, low cost digital IR turbidity sensor designed for compliancy with ISO 7027:1999 standard. TurbiLux can be deployed in a wide range of applications including flow-through systems for process monitoring and in-situ deployments in rivers, lakes and oceans.  

MiniPack CTD-F

MiniPack is a low cost, compact, robust and fully integrated CTD-F sensor suite designed to meet the demands of open ocean, estuarine and fresh water environmental monitoring, incorporating a 24 channel data logger.  MiniPack is designed to be a multi-parameter sensor data logger that can be deployed individually or as the core of a larger multi-parameter system.  

Plankton Sampler

In situ zooplankton sampler, design for use in towed vehicles, on mooring and in ferrybox systems.

GlowTracka Bioluminescence Sensor

A submersible bioluminescence sensor which monitors the visible emissions from bioluminescent organisms in seawater. It is ideally suited to measure bioluminescence for toxic blooms and biomass studies to continental shelf depths.

Acoustic Transducers

CTG manufactures a range of underwater acoustic transducers including hydrophones, projectors, pingers and sidescan sonar arrays plus a wide range of state of the art equipment and systems for calibration, test & general performance evaluation of airborne, surface ship and submarine sonars.

Submarine Systems

CTG is the design authority for the Sonar 2115 military oceanographic system. Under a first-line supply contract Chelsea has supplied Sonar 2115 systems for installation onboard the fourth Astute Class submarine HMS AUDACIOUS and the Shore Based Integration Facility. Chelsea has previously delivered oceanographic systems for the first three Astute class submarines

Naval Ship Systems

Chelsea Technologies provides the UK Ministry of Defence with a customized FerryBox system for its Ice Patrol Vessel HMS PROTECTOR. The FerryBox system is designed to gather continuous real-time data of the surface waters through which the vessel travels. Also supplies towed vehicle systems for the RN Ocean Survey Vessels.

Pipeline Leak Detection System

The system finds leaks in sub-sea pipelines by sensing the fluorescence signal of leaking dye introduced during pipeline commissioning and operations.

Systems can also be provided to detect leaking hydrocarbons in operating pipelines, and for detecting leaks in control lines. The systems are designed to be easily fitted to an ROV for rapid deployment, and can also be supplied as a handheld system for diver operations

ERAS (Echo Repeat Acoustic Source) System

Echo Repeater Acoustics Source (ERAS) is a compact and versatile system for the performance evaluation of a wide range of active and passive sonar. It has been designed to be hand-deployed from small vessels with few facilities - the transducer assembly is a small lightweight unit containing both projector and hydrophone. At the surface, the system includes a rugged, portable, power amplifier unit and a controlling computer.

VASS (Versatile Acoustic Source System)

The Versatile Acoustic Source System (VASS) has been designed and developed by Chelsea Technologies Group to evaluate the performance of a wide range of active and passive sonar. It produces complex, calibrated transmissions in addition to echo repeating, transponding and acting as a calibrated receiver.

VASS provides a highly versatile and flexible sonar test system, which is configured by simple mouse or keyboard selections. In addition to instant configuration changes, via its Windows XP interface, VASS allows desktop set-up of complete trials programs in advance, hence avoiding costly errors in signal definition during calibration trials.

Oceanographic Towed Vehicle Systems

Chelsea Technologies Group is the world's leading designer & manufacturer of towed oceanographic platforms. We can offer small portable systems for use from small research vessels or ships of opportunity to large, dedicated systems that are permanently installed on ocean going research vessel.

FastOcean Systems

FastOcean is a family of multi-wavelength Fast Repetition Rate Fluorometer systems for in situ and laboratory studies of phytoplankton photosynthesis and gross primary productivity. These high performance systems are suitable for use in a wide range of applications from the assessment of primary production within the world's oceans to environmental monitoring within reservoirs and rivers.   

UV AquaTracka

A submersible fluorometer to monitor the concentration of refined hydrocarbons (360nm) or crude hydrocarbons (440nm) in a wide range of oceanographic applications. In support of this, it has been designed to be deployed from undulating vehicles, moored or profiling systems. The instrument is rated to 6000m.

AquaTracka III

A compact, lightweight, submersible fluorometer for the detection of chlorophyll a, dye tracing or turbidity. Manufactured in titanium, it is rated to 6000m. For deck and laboratory applications a flow through cowling is available.

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