Valve Train Halves Idle to Full Load Time

Posted by George Backwell
Tuesday, February 25, 2014

One of the  new tools that engine builders are using these days to reduce fuel consumption and greenhouse gas emissions is Valve Control Management (VCM), ABB’s variable valve train system, more so since duel-fuel engines become an increasingly popular choice by shipowners.
Initially introduced in the shore-based gas plant sector, Christoph Rofka, Senior General Manager for New Business at ABB conjectured at that time and with an eye to the future:  “A technology like this speaks to the increasing trend to explore dual-fuel options and create solutions for gas. These engines are also very similar to what you find on many ships, and we believe that VCM will very soon be highly relevant for and effective in the marine industry.”
Basically the technology helps a turbocharger to manage air actively and is particularly effective for high-performance engines in which large operating ranges or rapid load responses are required such as tugboats, icebreakers, pump drives, compressor drives and power generators.
The manufacturers explain that generally, most valve train systems must be set for a particular engine load and they are matched to a particular operating condition, consequently they cannot switch flexibly from one load to another and so compromise on fully leveraging the engine’s full potential. Running an engine with this type of valve train system at a load other than what it was originally set to results in lower efficiency, smoke, and greater thermal load on the engine.
To ameliorate, VCM was specifically designed as an intelligent valve train system that responds adaptively to change the timing in an engine’s valves so that it always receives an ideal amount of air. This technology thus manages transient behaviour, i.e. changes in engine speed, load or both, so that engines can accelerate more rapidly from one load point to another. VCM optimizes the configuration of the engine for every load, allowing the engine to work as efficiently as possible. A turbocharging solution equipped with VCM can take an engine that is idling to full load in half the time that it normally takes, in some cases even more quickly.

Posted by George Backwell @ www.maritimepropulsion.com

(As published in the February 2014 edition of Maritime Reporter & Engineering News - www.marinelink.com)
 

Maritime Reporter July 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Report: Ports Lack Maintenance Support

The latest Barometer Report from Trelleborg has revealed a huge gap in the maintenance requirements of port owners and operators, and the support that suppliers are able to provide.

Smart-Ship 'Quantum of the Seas' Readies

Tech-savvy modern travelers will be wowed by Royal Caribbean International's newest ship, 'Quantum of the Seas', which incorporates unprecedented levels of technology

Port of Long Beach Chooses APS Crane OCR System

APS Technology Group, a member of the ABB Group and a leading provider of optical character recognition (OCR) and process automation technology solutions for marine and intermodal container terminals,

Shipbuilding

SBI Offshore Negotiating Contract for Rig Builds

SBI Offshore Limited has announced that the Middle East-Chinese consortium, which recently awarded its subsidiary a contract to provide design and engineering services for a jack-up drilling rig,

Brazilian PSVs Get Rolls-Royce Offshore Cranes

Rolls-Royce signed a contract with Detroit Chile SA to supply offshore cranes to nine Platform Supply Vessels (PSVs) presently under construction at Detroit Brasil Ltda.

ABS to Class First Self-elevating Unit Built in Qatar

ABS, a provider of classification services to the global offshore industry, was selected by Nakilat-Keppel Offshore & Marine (N-KOM) to class its LB310S liftboat,

Environmental

Legislation Signed for Ports Upgrades

Today, Governor Brown signed AB 2395 Legislation. The bill was co-authored by Bonnie Lowenthal chair of the Assembly Transportation Committee and the Select Committee

Northern Sea Route Opens Earlier than Last Year

Northern Sea Route (NSR) eastern passage opens two weeks earlier than last year; Global Ice Center predicts NSR to remain open for six weeks The Global Ice Center at Weathernews Inc.

Pine Galaxy to Arrive SF Bay Wednesday

The disabled mixed-products tanker Pine Galaxy is expected to arrive in San Francisco Wednesday morning. The ship is being towed by commercial tug to San Francisco Bay.

Marine Power

CMR Debuts Engine Supervision and Management Software

CMR Group has introduced a new Integrated Alarm Monitoring and Control System (IAMCS) for marine and naval engine applications which it said provides technologically-advanced

Pine Galaxy to Arrive SF Bay Wednesday

The disabled mixed-products tanker Pine Galaxy is expected to arrive in San Francisco Wednesday morning. The ship is being towed by commercial tug to San Francisco Bay.

Last Call for Netherlands Marine Propulsion Course

The Marine Propulsion Course this autumn is almost sold out. In this course you will be trained to understand the specific characteristics of ships, engines, transmission systems,

News

CMR Debuts Engine Supervision and Management Software

CMR Group has introduced a new Integrated Alarm Monitoring and Control System (IAMCS) for marine and naval engine applications which it said provides technologically-advanced

Legislation Signed for Ports Upgrades

Today, Governor Brown signed AB 2395 Legislation. The bill was co-authored by Bonnie Lowenthal chair of the Assembly Transportation Committee and the Select Committee

Report: Ports Lack Maintenance Support

The latest Barometer Report from Trelleborg has revealed a huge gap in the maintenance requirements of port owners and operators, and the support that suppliers are able to provide.

Marine Equipment

CMR Debuts Engine Supervision and Management Software

CMR Group has introduced a new Integrated Alarm Monitoring and Control System (IAMCS) for marine and naval engine applications which it said provides technologically-advanced

Report: Ports Lack Maintenance Support

The latest Barometer Report from Trelleborg has revealed a huge gap in the maintenance requirements of port owners and operators, and the support that suppliers are able to provide.

Brazilian PSVs Get Rolls-Royce Offshore Cranes

Rolls-Royce signed a contract with Detroit Chile SA to supply offshore cranes to nine Platform Supply Vessels (PSVs) presently under construction at Detroit Brasil Ltda.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Offshore Oil Port Authority Salvage Ship Repair Ship Simulators Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1931 sec (5 req/sec)