AN ANALYSIS OF THE NOISE IN THE ENGINE ROOM � CASE STUDY A MERCHANT SHIP NAVIGATING ON DANUBE

2019 ◽  
Author(s):  
Laurentiu Picu
Keyword(s):  
Engine Room ◽  
Merchant Ship

scholarly journals Fuel economy assessment tool for auxiliary kite propulsion of merchant ship

2018 ◽  
pp. 5-7 ◽  
Author(s):  
Vincent Podeur ◽  
Damien Merdrignac ◽  
Morgan Behrel ◽  
Kostia Roncin ◽  
Caroline Fonti ◽  
...  
Keyword(s):  
Fuel Economy ◽  
Assessment Tool ◽  
Round Trip ◽  
Merchant Ship ◽  
Added Resistance In Waves ◽  
The Mean ◽  
The Impact ◽  
Engine Power

A tool dedicated to assess fuel economy induced by kite propulsion has been developed. To produce reliable results, computations must be performed on a period over several years, for several routes and for several ships. In order to accurately represent the impact of meteorological trends variations on the exploitability of the kite towing concept, a time domain approach of the problem has been used. This tool is based on the weather database provided by the ECMWF. Two sailing strategies can be selected for assessing the performance of the kite system. For a given kite area, the simulation can be run either at constant speed or at constant engine power. A validation has been made, showing that predicted consumption is close from in-situ measurement. It shows an underestimation of 11.9% of the mean fuel consumption mainly due to auxiliary consumption and added resistance in waves that were not taken into account. To conclude, a case study is performed on a 2200 TEU container ship equipped with an 800m² kite on a transatlantic route between Halifax and Le Havre. Round trip simulations, performed over 5 years of navigation, show that the total economy predicted is of around 12% at a speed of 16 knots and around 6.5% at a speed of 19 knots.

scholarly journals Forensic Engineering Investigation Of A Cruise Ship Fire

2001 ◽  
Vol 18 (2) ◽  
Author(s):  
Thomas P. Shefchick
Keyword(s):  
Carbon Dioxide ◽  
Insurance Companies ◽  
Cruise Ship ◽  
Financial Loss ◽  
Engine Room ◽  
Fire Insurance ◽  
Room Fires ◽  
Forensic Engineering ◽  
Engineering Investigation

Each Year There Are Approximately 50 Major Fires Aboard Ships, Which Result In Financial Loss, Personal Injury And Death. Financial Loss At Sea Instigated The Formation Of Insurance Companies Such As Lloyds Of London, Which Now Provide Fire Insurance For Most Assets. Over A Nine-Year Period From 1977 To 1986, The Liverpool Underwriters Association Reported That 33 Percent Of The Fires Originated In Machinery Spaces, 3.6 Percent Originated In Electrical Installations And 0.5 Percent Originated In Stores. Between 1991 And 1993, 54 Percent Of The Fires Originated In Engine Rooms. The Engine Room Fires Were Often Initiated By An Explosion Or The Result From An Uncontrolled Release Of Flammable Vapors Or Fuel Into The Engine Room. 40 Percent Of All Fires In Engine Rooms Are Extinguished Using Portable Appliances While 18 Percent Are Extinguished By Fixed Carbon Dioxide Systems. Portable Appliances Are Most Effective In The First 15 Minutes And Carbon Dioxide In The First 30 Minutes...A Case Study Of The Investigation Of A Fatal Passenger Cruise Ship Fire Will Be Utilized To Show How The Burn Patterns Differ, How To Determine A Fires Area Of Origin And Possible Causes Of The Fire.

VIABILITY OF USING ENGINE ROOM SIMULATORS FOR EVALUATION MACHINERY PERFORMANCE AND ENERGY MANAGEMENT ONBOARD SHIPS

2021 ◽  
Vol 161 (A3) ◽  
Author(s):  
I S Seddiek
Keyword(s):  
Adverse Effects ◽  
Energy Management ◽  
Current Paper ◽  
Fuel Saving ◽  
Saving Energy ◽  
Maritime Education ◽  
Engine Room ◽  
Passenger Ships ◽  
Oil Tanker

The maritime institutions aim at contributing to reducing the adverse effects arising from the ships, machinery operation through the possibilities exit in the engine room simulators. The current paper explains the importance of engine room simulators in maritime education in general and focuses on their use in the field of evaluation and management of machinery within the engine room space. As a case study, an electric powered passenger ship and an oil tanker ship are investigated regarding applying ship energy management onboard. This investigation could be achieved using the possibilities available in TRANSIS ERS 5000. With reference to passenger ships, the results show the possibility of saving energy with a reduction of CO, SOx, CO2 and C emissions by about 7.97, 10.54, 12.36, and 20.11%, respectively. However, regarding tanker ships, the results reveal that a reduction of speed by 10% will achieve fuel saving by about 25%.

scholarly journals Engine Cadets with and Without Additional Training on Training Vessel – Competences Comparison Case Study

2019 ◽  
Vol 26 (3) ◽  
pp. 61-68
Author(s):  
Piotr Kamiński ◽  
Adam Charchalis
Keyword(s):  
Training Program ◽  
Professional Practice ◽  
General Idea ◽  
Final Test ◽  
Professional Career ◽  
Engine Room ◽  
Ship Owner ◽  
Operational Level ◽  
Written Test

Abstract In the last decade evolution of the requirements for training and professional competences of ship’s crewmembers, including ship engineers can be observed. Despite the implementation of training programs according to IMO requirements in maritime training centres, a different level of competence of young people beginning their professional career on ships in the engine department is observed. The article discusses general conventions, goals, and effects of the “BS Cadet Program” training program, introduced by one of the larger German ship-owner to improve the competencies of crewmembers at the operational level, who will take duties of the watch engineer in the ship engine room soon. General idea of this training program is reducing the time of the path career what is a standard in most shipping companies. Such idea in this program is utilised by directly merging theoretical knowledge with professional practice on special prepared training vessel. The work present also comparison of the acquired knowledge verification results of training participants with the results of engine cadets from last semester of the UMG Faculty of Engineering. The comparison includes computer exercises of Marine equipment and machineries (UNITEST Company – CBT) also genera ship and engine room knowledge checked by written test called “Final Test” carried out on the end of 3 months training.

scholarly journals Effect of Design Engine Room Layout on Self-Righting System-Case Study: Fast Boat

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Muhammad Badrus Zaman ◽  
Achmad Baidowi ◽  
Achmad Ishlahul Fanany
Keyword(s):  
Engine Room

scholarly journals Estimating the Risk of Outbreaks of COVID-19 Associated with Shore Leave by Merchant Ship Crews: Simulation Studies for a Case Country

2020 ◽  
Author(s):  
Nick Wilson ◽  
Tony Blakely ◽  
Michael Baker ◽  
Martin Eichner
Keyword(s):  
Median Time ◽  
Destination Country ◽  
Control Measures ◽  
Contact Tracing ◽  
Simulation Studies ◽  
Stochastic Version ◽  
Scenario Analyses ◽  
Merchant Ship ◽  
Combined Use

Aim: We aimed to estimate the risk of COVID-19 outbreaks in a case study COVID-free destination country, associated with shore leave for merchant ship crews. Methods: A stochastic version of the SEIR model CovidSIM v1.1, designed specifically for COVID-19 was utilised. It was populated with parameters for SARS-CoV-2 transmission, shipping characteristics, and plausible control measures. Results: When no control interventions were in place, an outbreak of COVID-19 in our case study destination country (New Zealand; NZ) was estimated to occur after a median time of 23 days (assuming a global average for source country incidence of 2.66 new infections per 1000 population per week, a crew of 20, a voyage length of 10 days, 1 day of shore leave both in NZ and abroad, and 108 port visits by international merchant ships per week). For this example the uncertainty around when outbreaks occur is wide (an outbreak occurs with 95% probability between 1 and 124 days). The combined use of a PCR test on arrival, self-reporting of symptoms with contact tracing, and mask use during shore leave, increased this median time to 1.0 year (14 days to 5.4 years). Scenario analyses found that onboard infection chains could persist for well over 4 weeks even with crews of only 5 members. Conclusion: Introduction of SARS-CoV-2 through shore leave from international shipping crews is likely, even after long voyages. The risk can be substantially mitigated by control measures such as PCR testing and mask use.

Viability of Using Engine Room Simulators for Evaluation Machinery Performance and Energy Management Onboard Ships

2019 ◽  
Vol 161 (A3) ◽  
Keyword(s):  
Adverse Effects ◽  
Energy Management ◽  
Current Paper ◽  
Fuel Saving ◽  
Saving Energy ◽  
Maritime Education ◽  
Engine Room ◽  
Passenger Ships ◽  
Oil Tanker

The maritime institutions aim at contributing to reducing the adverse effects arising from the ships, machinery operation through the possibilities exit in the engine room simulators. The current paper explains the importance of engine room simulators in maritime education in general and focuses on their use in the field of evaluation and management of machinery within the engine room space. As a case study, an electric powered passenger ship and an oil tanker ship are investigated regarding applying ship energy management onboard. This investigation could be achieved using the possibilities available in TRANSIS ERS 5000. With reference to passenger ships, the results show the possibility of saving energy with a reduction of CO, SOx, CO2 and C emissions by about 7.97, 10.54, 12.36, and 20.11%, respectively. However, regarding tanker ships, the results reveal that a reduction of speed by 10% will achieve fuel saving by about 25%.

The Genesis and Internal Dynamics of El Salvador's People's Revolutionary Army, 1970–1976

2014 ◽  
Vol 38 (01) ◽  
pp. 102-129
Author(s):  
ALBERTO MARTÍN ÁLVAREZ ◽  
EUDALD CORTINA ORERO
Keyword(s):  
Latin America ◽  
El Salvador ◽  
Early Years ◽  
Left Wing ◽  
Internal Dynamics ◽  
Internal Coherence ◽  
The 1960S

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.

Culture and the plasticity of perception

2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann
Keyword(s):  
Cultural Context ◽  
Sensory Experience ◽  
Cultural Learning ◽  
The World

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.

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