Analysing the risk of LNG carrier operations

Vanem, Erik; Antão, Pedro; Østvik, Ivan; Comas, Francisco Del Castillo de

doi:10.1016/j.ress.2007.07.007

Cited by 158 publications

(76 citation statements)

References 11 publications

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“…Any steam system is usually very complex because it is assembled from a large number of components [7,8]. Therefore, for the marine steam propulsion systems is necessary to conduct the economic analysis [9] and operation risk assessment [10] in order to minimize possible harmful consequences. Important elements of the steam plants are feed water heaters [11] regardless of the type and operation mode of the steam plant [12,13].…”

Section: Vedran Mrzljak Igor Poljak Vedran Medica-viola Thermodynammentioning

confidence: 99%

Thermodynamical Analysis of High-Pressure Feed Water Heater in Steam Propulsion System During Exploitation

Mrzljak

Poljak²,

Medica-Viola

2017

Brod

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SummaryNowadays diesel engines prevail as ship propulsion. However, steam propulsion is still primary drive for LNG carriers. In the presented paper high-pressure feed water heater was analyzed, as one of the essential components in LNG carrier steam propulsion system. Measurements of all operating parameters (fluid streams) at the analyzed heat exchanger inlets and outlets were performed. Change of the operating parameters was measured at different steam system loads, not at full load as usual. Through these measurements was enabled the insight into the behaviour of the heat exchanger operating parameters during the whole exploitation. The numerical analysis was performed, based on the measured data. The changes in energy and exergy efficiency of the heat exchanger were analyzed. Energetic and exergetic power inputs and outputs were also calculated, which enabled an insight into the change of energetic and exergetic power losses of the heat exchanger at different steam system loads. Change in energetic and exergetic power losses and operating parameters, which have the strongest influence on the highpressure feed water heater losses, were described. Analyzed heat exchanger was compared with similar heat exchangers in the base loaded conventional steam power plants. From the conducted analysis, it is concluded that the adjustment and control modes of these high-pressure heat exchangers are equal, regardless of whether they were mounted in the base loaded conventional steam power plants or marine steam systems, while their operating parameters and behaviour patterns differ greatly.

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Section: Vedran Mrzljak Igor Poljak Vedran Medica-viola Thermodynammentioning

confidence: 99%

Thermodynamical Analysis of High-Pressure Feed Water Heater in Steam Propulsion System During Exploitation

Mrzljak

Poljak²,

Medica-Viola

2017

Brod

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“…또한, 화물창의 안전성 확보 를 위한 구조 강도 평가에 관한 연구는 여러 문헌과 기술 자료 로부터 사례를 찾아 볼 수 있다 (Hwang et al, 2012;Ito et al, 2008;Lee et al, 2011b;Nho et al, 2012). 그럼에도 불구하고 이장현․김윤조․황세윤 멤브레인형 화물창에서 슬로싱 하중 또는 선체 굽힘 하중 등으 로 인하여 단열 시스템에 균열이 발생하고 LNG 유출의 위험을 가지고 있다 (Vanem et al, 2008;Kim and Lee, 2008 (Colson, et al, 2012;GTT, 2014 …”

Section: 서 론unclassified

Numerical Model of Heat Diffusion and Evaporation by LNG Leakage at Membrane Insulation

이¹,

김²,

황³

2014

Journal of Ocean Engineering and Technology

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“…Various studies have been performed on key aspects which contribute cost to accidents which occur in the marine industry [Goulielmos & Giziakis 1998, Talley 1999, Talley 2002, SAFEDOR 2007, Vanem et al 2008, Guarin et al 2009. Wood (1995) identifies four key aspects of marine incident costs to be loss of assets, loss of cargo, loss of lives and pollution to be analysed to establish base values for vessel accident costs.…”

Section: Cost Factors Associated With Marine Accidentsmentioning

confidence: 99%

A model assessing cost of operating marine systems using data obtained from Monte Carlo analysis

McNamara

Cunningham

Jenkinson

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part M:

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This paper presents a methodology for analysing the cost of operating marine systems under varying conditions. Data obtained from a previously developed Monte Carlo analysis is applied to assess the operational costs for various maintenance and inspection policies. The concept of Total Insured Value is also applied to determine the cost attributed to risk. The aim is to show that Monte Carlo analysis can be adapted to provide information on various factors affecting operational costs to be used for decision making to optimise the efficiency of marine systems. A method of modelling the effects of lead times due to un-stocked items has also been included to increase the scope of the analysis.

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Analysing the risk of LNG carrier operations

Cited by 158 publications

References 11 publications

Thermodynamical Analysis of High-Pressure Feed Water Heater in Steam Propulsion System During Exploitation

Thermodynamical Analysis of High-Pressure Feed Water Heater in Steam Propulsion System During Exploitation

Numerical Model of Heat Diffusion and Evaporation by LNG Leakage at Membrane Insulation

A model assessing cost of operating marine systems using data obtained from Monte Carlo analysis

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