scholarly journals Gas Turbines in the Royal Navy, 1965–1969

Author(s):  
S. G. Morgan ◽  
A. W. Lamport ◽  
A. J. R. Smith

This paper deals with the Royal Navy’s experience with marine gas turbines during the past four years. The Royal Navy now has a large number of semi-industrial type gas turbines at sea and is currently engaged upon the development and sea trials of aircraft type turbines for major warship propulsion, drawing on its experience with the engines of the “Brave” class fast patrol boats, which have had to be overcome on the various engines and in the ship installations are discussed.

Author(s):  
R. C. Bonner

Aircraft-type gas turbines have been used by Consumers Power Co. to provide power for the injection of natural gas into underground storage for the past five years. Special controls, auxiliary and driven equipment are required for this unique application. Operating experience has prompted numerous refinements as well as providing information for maintenance and economic planning. The paper describes the basic design of the engine-compressor units for a remotely controlled, unmanned compressor station as well as highlights from the operating experience with this application.


Author(s):  
T. R. Shaw

Olympus TM3B and Tyne RM1A marine gas turbines have entered service in ships of the Royal Navy. Development work on these engines, and on the uprated Tyne RM1C, over the past four years is described, together with associated work on demisters, silencers and ducting. The Royal Navy approach to gas turbine logistic support is also discussed.


1994 ◽  
Vol 80 (1) ◽  
pp. 17-21
Author(s):  
L B Cannon

AbstractPassive smoking is an emotive issue and one which has received considerable coverage in the past few years from both the scientific community and the media. The arguments for and against links between passive smoking and disease are as fiercely contested among members of the Royal Navy as among civilians. This article aims to present the current evidence in favour of such a link and also the views on the matter as expressed by the ship’s company of a Type 22 frigate. Their views will be compared to the result of a similar survey carried out among civilian workforces. Finally, based on the evidence and results presented, strategies for tackling this problem will be discussed.


2015 ◽  
Vol 101 (1) ◽  
pp. 7-12 ◽  
Author(s):  
M Osborne ◽  
JE Smith

AbstractOver the past century trauma care within the Royal Navy (RN) has evolved; wartime experiences and military medical research have combined to allow signifi cant improvement in the care of casualties. This article describes the key maritime and amphibious operations that have seen the Royal Navy Medical Service (RNMS) deliver high levels of support to wherever the Naval Service has deployed in the last 100 years. Key advancements in which progress has led to improved outcomes for injured personnel are highlighted – the control and treatment of blood loss, wound care, and the prevention and management of organ failure with optimal resuscitation.Historians often point out how slowly military medicine progressed for the fi rst few thousand years of its recorded history, and how quickly it has progressed in the last century. This refl ective article will show how the RNMS has been an integral part of that story, and how the lessons learnt by our predecessors have shaped our modern day doctrine surrounding trauma care.


Author(s):  
Mustapha Chaker ◽  
Cyrus B. Meher-Homji ◽  
Thomas Mee

The inlet fogging of gas turbine engines for power augmentation has seen increasing application over the past decade yet not a single technical paper treating the physics and engineering of the fogging process, droplet size measurement, droplet kinetics, or the duct behavior of droplets, from a gas turbine perspective, is available. This paper provides the results of extensive experimental and theoretical studies conducted over several years, coupled with practical aspects learned in the implementation of nearly 500 inlet fogging systems on gas turbines ranging in power from 5 to 250 MW. Part B of the paper treats the practical aspects of fog nozzle droplet sizing, measurement and testing presenting the information from a gas turbine fogging perspective. This paper describes the different measurement techniques available, covers design aspects of nozzles, provides experimental data on different nozzles and provides recommendations for a standardized nozzle testing method for gas turbine inlet air fogging.


Author(s):  
R. E. Stauffer

Existing gas pipeline facilities in Western Canada are outlined. The paper points out the trend away from industrial type gas turbines, and points out the advantages to using aircraft type gas turbines. The expansion of pipeline facilities to the Canadian Arctic and Alaska could prove to be a market for the new high efficiency aircraft type gas turbines. The fuel gas savings can be a significant factor when constructing the new line.


Author(s):  
Bin Zhou

According to FM Global proprietary data, power-gen gas turbine losses have consistently represented a dominant share of the overall equipment-based loss value over the past decade. Effective assessment of loss exposure or risk related to gas turbines has become and will continue to be a critical but challenging task for property insurers and their clients. Such systematic gas turbine risk assessment is a necessary step to develop strategies for turbine risk mitigation and loss prevention. This paper presents a study of outage data from the Generating Availability Data System (GADS) by the North American Electric Reliability Corporation (NERC). The risk of forced outages in turbines was evaluated in terms of outage days and number of outages per unit-year. In order to understand the drivers of the forced outages, the influence of variables including turbine age, capacity, type, loading characteristic, and event cause codes were analyzed by grouping the outage events based on the chosen values (or ranges of values) of these variables. A list of major findings related to the effect of these variables on the risk of forced outage is discussed.


Author(s):  
Graeme L. Merrington

Reliable methods for diagnosing faults and detecting degraded performance in gas turbine engines are continually being sought. In this paper, a model-based technique is applied to the problem of detecting degraded performance in a military turbofan engine from take-off acceleration type transients. In the past, difficulty has been experienced in isolating effects of some of the physical processes involved. One such effect is the influence of the bulk metal temperature on the measured engine parameters during large power excursions. It will be shown that the model-based technique provides a simple and convenient way of separating this effect from the faster dynamic components. The important conclusion from this work is that good fault coverage can be gleaned from the resultant pseudo steady-state gain estimates derived in this way.


Author(s):  
N. J. F. V. Harry

In common with all responsible equipment operators the Royal Navy continues to seek ways to reduce ownership costs. In the particular case of gas turbines, over the last few years, this has taken the form of investment to achieve improvements in fuel efficiency. This route now ceases to offer large scope for improvement. The Royal Navy has therefore carried out an Investment Appraisal into the likely cost benefits which would result from improved life and reliability. The result of this study was to demonstrate a net present value cost advantage from entering into a joint venture development programme with Rolls-Royce to uprate and improve the Marine Spey SMIA.


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