Failure analysis of AISI 310S plate in an inert gas generator used in off-shore oil platform

2011 ◽  
Vol 18 (6) ◽  
pp. 1435-1444 ◽  
Author(s):  
J.M. Pardal ◽  
S.S. Carvalho ◽  
C. Barbosa ◽  
T.R. Montenegro ◽  
S.S.M. Tavares
Keyword(s):  
Failure Analysis ◽  
Inert Gas ◽  
Gas Generator

Performance tests of two inert gas generator concepts for airplane fuel tank inerting

1983 ◽  
Author(s):  
C. ANDERSON ◽  
A. GRENICH ◽  
F. TOLLE ◽  
W. YAGLE ◽  
G. GANDEE
Keyword(s):  
Fuel Tank ◽  
Inert Gas ◽  
Performance Tests ◽  
Gas Generator

An inert gas generator

1970 ◽  
Author(s):  
J. HALEY ◽  
L. WILLIAMS
Keyword(s):  
Inert Gas ◽  
Gas Generator

Experimental Investigation of an Inert Gas Generator for Fire Suppressing

2001 ◽  
Author(s):  
SooYong Kim ◽  
A. Slitenko
Keyword(s):  
Experimental Investigation ◽  
Gas Turbine ◽  
Mass Flow Rate ◽  
Oxygen Content ◽  
Flow Rate ◽  
Gas Turbine Engine ◽  
Inert Gas ◽  
Gas Generator ◽  
Turbine Engine ◽  
Exit Nozzle

Present study deals with experimental and theoretical performance analysis of an inert gas generator(IGG) which can be used as an effective mean to suppress the fire. The system consists of a gas turbine engine and afterburning system with injection of water, exit nozzle to produce the inert gas. It is generally known that the degree of oxygen content in the product of combustion depends on both inlet and outlet temperature of a combustor. Less the oxygen content in the combustion product higher will be the effectiveness of fire suppression. Injection of water brings additional advantages of suffocating and cooling effects which are both indespensable factors for fire suppressing. The special test rig was manufactured and experimental investigation of IGG system has been carried out. The automatic control system ensured stable operation of gas turbine engine and afterburner, water injection, fuel control and others. During the investigation the main parameters of gas turbine engine and auxiliarly systems were measured: gas temperature and pressure at gas turbine and afterburner exit, fuel flow rate, water mass flow rate, inlet air temperature, water temperature in the cooling chamber, mass flow rate, temperature and velocity of exhaust gas-steam mixture in the exit nozzle, oxygen content in the exit jet. The experimental investigation shows that developed IGG system can work very well for indoor fires but need some modifications in application to outdoor fire suppressing.

STUDI KASUS PROSES INERTING TANKI MUATAN PADA KAPAL MT. GAS WALIO DALAM RANGKA PERSIAPAN DOCKING

2021 ◽  
Vol 12 (2) ◽  
pp. 80
Author(s):  
Teguh Purnomo ◽  
Nazarudin Sinaga ◽  
Nafi Almuzani
Keyword(s):  
Theory And Practice ◽  
Dew Point ◽  
Inert Gases ◽  
Inert Gas ◽  
Repair System ◽  
Gas Generator ◽  
Maintenance And Repair ◽  
Gas Generators ◽  
Special Process

In handling cargo, some types of ships have different ways. On gas tankers containing LPG, a special process is required in avoiding explosions in cargo tanks and avoiding the waste of cargo into the atmosphere. The process of handling the payload is the inerting porses on the payload tank. This process includes inert gas with oxygen levels of less than 8% to prevent the formation of fire triangles in the payload tank so as to avoid explosions. Inert gas is produced by an engine in the form of an Inert Gas Generator. Inert gas generators have several components, the process of which is interconnected with each other to produce inert gases. Inert gas generators require a good and correct maintenance and repair system considering the purpose of inserting inert gas into the payload tank is significant in terms of safety and security on board. Case study on board MT. Walio gas observes the activities of the inerting process that is disrupted by the waste of inert gas into the atmosphere and has a high dew point value so that inert gas does not enter the tank load. From the results of the case study intended that the components on the gas generator inert do not function properly, some analysis is done by observing the continuity of the process and written data so that it is expected that the case study has the benefit in theory and practice in handling the continuity of the inerting process.

Numerical Study of Heat and Aerodynamic Processes in Regenerators of an Inert Gas Generator (IGG)

2005 ◽  
Author(s):  
SooYong Kim ◽  
Valeri P. Kovalevski ◽  
V. Goldenberg
Keyword(s):  
Numerical Study ◽  
Aerodynamic Resistance ◽  
Extensive Study ◽  
Inert Gas ◽  
Gas Generator ◽  
Regenerative Heat ◽  
Turbine Engine ◽  
One Dimensional ◽  
Study Results ◽  
Integral Scheme

The cooling scheme for inert gas exhausting from a small gas turbine engine is presented and its performance, including the gas injector and regenerator, are investigated. A distributed, nonlinear mathematical model used to study the processes in regenerative heat exchangers is also described. An integral scheme of a conjugated problem of a non-stationary heat exchange of both one-dimensional streams and a two-dimensional matrix wall are presented. Comparison of test calculations made using the developed program with experimental data of different authors has shown satisfactory agreement. The extensive study results of quasistationary, dynamic heat and aerodynamic processes in regenerators with four types of matrices are introduced: ceramic matrix with straight rectangular cross-sectioned channels and three types of packings — granite full-spheres, Raschig rings and meshes of stainless steel. For each type of matrix, optimum range of rotation speeds ensures the maximum effectiveness while allowing the minimum aerodynamic resistance to be determined.

scholarly journals Th e Possibility of the Inert Gas Generator Environmental Operation Mode Utilization on Long Range 2 Oil Tankers During Discharge Operation

Naše more ◽  
2021 ◽  
Vol 68 (2) ◽  
pp. 131-136
Author(s):  
Marko Milković ◽  
◽  
Ivica Krmek ◽  
Miho Kristić ◽  
Miljen Sirotić
Keyword(s):  
Long Range ◽  
Operation Mode ◽  
Environmentally Friendly ◽  
Petroleum Products ◽  
Inert Gas ◽  
Gas Generator ◽  
Fuel Savings ◽  
Analysis And Synthesis ◽  
Discharge Operation ◽  
Minimal Modification

Long Range 2 tankers are the largest ships used for the transportation of petroleum products. Although more than 400 Long Range 2 tankers are navigating the world’s sea, many of the terminals, at which these ships discharge their cargo, do not utilize their discharging capacity to the full extent. This is due to the technological obsolescence of the terminal and the fact that these terminals are primarily designed to accommodate smaller tankers, such as Medium Range and Long Range 1 tankers. The reduced discharge capacity leads to longer ship stay in the port and increased air pollution due to the release of inert gas into the atmosphere since terminals unnecessarily insist on the continuous operation of the inert gas generator. This paper explains a possible solution to this problem by using environmentally friendly START/STOP operation mode of an inert gas generator using methods of analysis and synthesis, comparative methods and elements of the mathematical method. Environmentally friendly operation mode requires minimal modification of the software program and it is very easy to perform. This mode has a positive effect on reducing overall gas emissions and significant fuel savings.

Failure Analysis With the Scanning Electron Microscope

1972 ◽  
Vol 30 ◽  
pp. 482-483
Author(s):  
John R. Devaney
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Integrated Circuits ◽  
Failure Analysis ◽  
High Reliability ◽  
Military Applications ◽  
Small Structure ◽  
Useful Life ◽  
Insight Into ◽  
Scanning Electron

Occasionally in history, an event may occur which has a profound influence on a technology. Such an event occurred when the scanning electron microscope became commercially available to industry in the mid 60's. Semiconductors were being increasingly used in high-reliability space and military applications both because of their small volume but, also, because of their inherent reliability. However, they did fail, both early in life and sometimes in middle or old age. Why they failed and how to prevent failure or prolong “useful life” was a worry which resulted in a blossoming of sophisticated failure analysis laboratories across the country. By 1966, the ability to build small structure integrated circuits was forging well ahead of techniques available to dissect and analyze these same failures. The arrival of the scanning electron microscope gave these analysts a new insight into failure mechanisms.

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