A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Auxiliary machinery influence on vessel in slow steaming condition
https://orcid.org/0000-0003-1370-2231
This article describes the basics of power plant construction comprising waste heat recovery system and shaft generator-motor on a large container vessel. Two experiments enclosing fuel consumption and electric load monitoring during vessel acceleration and slowing down in a range of slow steaming speed were presented. Using collected data, approximating functions for relation fuel consumption, main engine speed in vicinity of shaft generator-motor minimum permissible speed, were described. Based on the experimental data, a simulation for hypothetical 4000 NM voyage was carried out. Ship’s total fuel consumption per voyage, for different engine speeds—below and above shaft generator-motor minimum cut-in speed—was elaborated. It was found that during slow steaming, fuel consumed by auxiliary boiler has much higher impact on the total fuel cost per voyage than fuel consumed by diesel generators when shaft generator-motor minimum permissible speed is not reached. Existence of a non-economical speed range just below shaft generator-motor minimum permissible speed was exposed. Evaluation of non-fuel cost of voyage was carried out. The amount of non-fuel cost was estimated to approximately 3.5% of overall variable cost of voyage. The influence of voyage speed on CO2 and NOX emission was elaborated. Ranges of most economical and most ecological (in terms of CO2 and NOX emission) speeds for simulated voyage were determined.
Auxiliary machinery influence on vessel in slow steaming condition
https://orcid.org/0000-0003-1370-2231
This article describes the basics of power plant construction comprising waste heat recovery system and shaft generator-motor on a large container vessel. Two experiments enclosing fuel consumption and electric load monitoring during vessel acceleration and slowing down in a range of slow steaming speed were presented. Using collected data, approximating functions for relation fuel consumption, main engine speed in vicinity of shaft generator-motor minimum permissible speed, were described. Based on the experimental data, a simulation for hypothetical 4000 NM voyage was carried out. Ship’s total fuel consumption per voyage, for different engine speeds—below and above shaft generator-motor minimum cut-in speed—was elaborated. It was found that during slow steaming, fuel consumed by auxiliary boiler has much higher impact on the total fuel cost per voyage than fuel consumed by diesel generators when shaft generator-motor minimum permissible speed is not reached. Existence of a non-economical speed range just below shaft generator-motor minimum permissible speed was exposed. Evaluation of non-fuel cost of voyage was carried out. The amount of non-fuel cost was estimated to approximately 3.5% of overall variable cost of voyage. The influence of voyage speed on CO2 and NOX emission was elaborated. Ranges of most economical and most ecological (in terms of CO2 and NOX emission) speeds for simulated voyage were determined.
Auxiliary machinery influence on vessel in slow steaming condition
https://orcid.org/0000-0003-1370-2231
This article describes the basics of power plant construction comprising waste heat recovery system and shaft generator-motor on a large container vessel. Two experiments enclosing fuel consumption and electric load monitoring during vessel acceleration and slowing down in a range of slow steaming speed were presented. Using collected data, approximating functions for relation fuel consumption, main engine speed in vicinity of shaft generator-motor minimum permissible speed, were described. Based on the experimental data, a simulation for hypothetical 4000 NM voyage was carried out. Ship’s total fuel consumption per voyage, for different engine speeds—below and above shaft generator-motor minimum cut-in speed—was elaborated. It was found that during slow steaming, fuel consumed by auxiliary boiler has much higher impact on the total fuel cost per voyage than fuel consumed by diesel generators when shaft generator-motor minimum permissible speed is not reached. Existence of a non-economical speed range just below shaft generator-motor minimum permissible speed was exposed. Evaluation of non-fuel cost of voyage was carried out. The amount of non-fuel cost was estimated to approximately 3.5% of overall variable cost of voyage. The influence of voyage speed on CO2 and NOX emission was elaborated. Ranges of most economical and most ecological (in terms of CO2 and NOX emission) speeds for simulated voyage were determined.
Auxiliary machinery influence on vessel in slow steaming condition
Kowalak, Przemysław (author)
2019-08-01
11 pages
Article (Journal)
Electronic Resource
English
Synchro-Modality and Slow Steaming: New Business Perspectives in Freight Transportation
| DOAJ | 2017
Investigation of the adverse effects of slow steaming operations for ships
| SAGE Publications | 2022