David zastrau (15 risultati)

Hardcover, 21 cm. Condizione: Wie neu. XVI, 123 pp., 38 b/w ill., 15 coloured ill., 17 b/w tables. A very good and clean copy, as new. - Summary: Currently, a new generation of fuel-efficient ships, which use wind force in addition to conventional propulsion technology, is being developed. This study describes a mathematical method for a probabilistic estimate of the wind propulsion force on a ship route. The method is based on quantile regression, which makes it suitable for various ship routes with variable weather conditions. Furthermore, the author takes different macro weather situations into account for the calculation of the statistical distributions. He validates the results for a multi-purpose carrier, a ship route in the North Atlantic Ocean and archived weather forecasts. It showed that the wind force can be estimated more accurately if the macro weather situation is taken into account properly. - Contents: 1. Introduction -- 1.1. Uncertainty in wind energy predictions -- 1.2. Approaches from the literature -- 2. Uncertainty in Wind Power Generation and Weather Routing -- 2.1. Weather prediction uncertainty in wind power generation (WPG) -- 2.2. Prediction uncertainty in weather routing -- 2.3. Wind power generation versus weather routing -- 2.4. Weather forecasting -- 3. Statistical Patterns of Uncertainty in Weather Predictions -- 3.1. Prediction error metrics -- 3.2. Predictions for the North Atlantic Ocean -- 3.3. Predictions for the North and Baltic Seas -- 4. Estimation of Prediction Uncertainty -- 4.1. Theoretical and empirical models -- 4.2. Ensemble prediction systems -- 4.3. Statistical methods -- 5. The Quantile Regression Model -- 5.1. Linear quantile regression (QR) -- 5.2. Regressors for the QR model -- 6. Implementation -- 6.1. Database with historical weather predictions -- 6.2. A* route optimization -- 6.3. Route optimization with uncertainty -- 6.4. Quantile regression -- 7. Evaluation and Results -- 7.1. Evaluation of prediction intervals -- 7.2. Application to wind-assisted sailing propulsion -- 7.3. Prediction intervals for ship propulsion energy -- 7.4. Prediction intervals for travel time -- 7.5. Uncertainty in weather routing with WaSP -- 7.6. Prediction interval benchmarks -- 7.7. Runtime discussion -- 7.8. Annual cost savings for a multi-purpose carrier -- 8. Conclusions and Outlook -- 8.1. New approach and scientific contribution -- 8.2. Outlook -- Bibliography -- List of Figures -- List of Tables -- A. Parameters of Wind Propulsion Systems -- B. Parameters of the wind and wave resistance models -- C. UML diagrams of the Java implementation -- D. The Global Sea Model (GSM). ISBN 9783631718858 Sprache: Englisch Gewicht in Gramm: 279.…

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Hardback. Condizione: New. Currently, a new generation of fuel-efficient ships, which use wind force in addition to conventional propulsion technology, is being developed. This study describes a mathematical method for a probabilistic estimate of the wind propulsion force on a ship route. The method is based on quantile regression, which makes it suitable for various ship routes with variable weather conditions. Furthermore, the author takes different macro weather situations into account for the calculation of the statistical distributions. He validates the results for a multi-purpose carrier, a ship route in the North Atlantic Ocean and archived weather forecasts. It showed that the wind force can be estimated more accurately if the macro weather situation is taken into account properly.…

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Condizione: New. In English.

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Condizione: New. 2017. New edition. Hardcover. . . . . . Books ship from the US and Ireland.

Buch. Condizione: Neu. Druck auf Anfrage Neuware - Printed after ordering - Currently, a new generation of fuel-efficient ships, which use wind force in addition to conventional propulsion technology, is being developed. This study describes a mathematical method for a probabilistic estimate of the wind propulsion force on a ship route. The method is based on quantile regression, which makes it suitable for various ship routes with variable weather conditions. Furthermore, the author takes different macro weather situations into account for the calculation of the statistical distributions. He validates the results for a multi-purpose carrier, a ship route in the North Atlantic Ocean and archived weather forecasts. It showed that the wind force can be estimated more accurately if the macro weather situation is taken into account properly.; Dissertationsschrift.…

Condizione: New. 2017. New edition. Hardcover. . . . . .

Hardback. Condizione: New. Currently, a new generation of fuel-efficient ships, which use wind force in addition to conventional propulsion technology, is being developed. This study describes a mathematical method for a probabilistic estimate of the wind propulsion force on a ship route. The method is based on quantile regression, which makes it suitable for various ship routes with variable weather conditions. Furthermore, the author takes different macro weather situations into account for the calculation of the statistical distributions. He validates the results for a multi-purpose carrier, a ship route in the North Atlantic Ocean and archived weather forecasts. It showed that the wind force can be estimated more accurately if the macro weather situation is taken into account properly.…

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Currently, a new generation of fuel-efficient ships, which use wind force in addition to conventional propulsion technology, is being developed. This study describes a mathematical method for a probabilistic estimate of the wind propulsion force on a ship route. The method is based on quantile regression, which makes it suitable for various ship routes with variable weather conditions. Furthermore, the author takes different macro weather situations into account for the calculation of the statistical distributions. He validates the results for a multi-purpose carrier, a ship route in the North Atlantic Ocean and archived weather forecasts. It showed that the wind force can be estimated more accurately if the macro weather situation is taken into account properly. 140 pp. Englisch.…

Gebunden. Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Wind drives in combination with weather routing can lower the fuel consumption of cargo ships significantly. For this reason, the author describes a mathematical method based on quantile regression for a probabilistic estimate of the wind propulsion force o.…

Buch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Currently, a new generation of fuel-efficient ships, which use wind force in addition to conventional propulsion technology, is being developed. This study describes a mathematical method for a probabilistic estimate of the wind propulsion force on a ship route. The method is based on quantile regression, which makes it suitable for various ship routes with variable weather conditions. Furthermore, the author takes different macro weather situations into account for the calculation of the statistical distributions. He validates the results for a multi-purpose carrier, a ship route in the North Atlantic Ocean and archived weather forecasts. It showed that the wind force can be estimated more accurately if the macro weather situation is taken into account properly. 140 pp. Englisch.…