The measurement of energy on-board railway stock vehicles shows the aggregated load of traction and auxiliaries, which does not allow to identify possible sources of waste of energy in each feature. In this document the energy consumption of auxiliary services for the vehicles Hitachi “Rock” Caravaggio and Stadler RABe 524 “TiLo” are computed to be placed under analysis. By using real measurements of the net energy managed by the locomotives, an electromechanical model is defined in order to find an approximation of the power profile for auxiliaries. Once this information is known the analysis focuses on evaluating the performance of the heating ventilation air-conditioned system (HVAC) which represents the biggest share of the whole auxiliary consumption. The analysis shows possible sources of energy waste during operation with respect to the number of passengers on-board, and another cause of waste during dwell time; both sources of waste can be mitigated by the use of Smart Metering on-board. The advantage of Smart Metering is explained through the proposal of two scenarios of implementation of meters on board in order to increase the efficiency of energy consumption. A review of the literature about the different ways to optimize energy are going to be treated in a global and specific matter as the same is done for metering methods.
La misurazione dell'energia a bordo dei veicoli ferroviari mostra il carico aggregato della trazione e dei servizi ausiliari, il che non consente di identificare le possibili fonti di spreco di energia in ogni caratteristica. In questo documento vengono calcolati i consumi energetici dei servizi ausiliari dei veicoli Hitachi "Rock" Caravaggio e Stadler RABe 524 "TiLo", per essere posti sotto analisi. Utilizzando misure reali dell'energia netta gestita dalle locomotive, viene definito un modello elettromeccanico per trovare un'approssimazione del profilo di potenza dei servizi ausiliari. Una volta note queste informazioni, l'analisi si concentra sulla valutazione delle prestazioni del sistema di riscaldamento, ventilazione e condizionamento (HVAC), che rappresenta la quota maggiore dell'intero consumo ausiliario. L'analisi mostra possibili fonti di spreco energetico durante il funzionamento, in relazione al numero di passeggeri a bordo, e un'altra fonte di spreco durante il tempo di sosta; entrambe le fonti di spreco possono essere mitigate dall'uso di Smart Metering a bordo. I vantaggi di questa implementazione sono spiegati attraverso la proposta di due scenari di misurazione a bordo per aumentare l'efficienza del consumo energetico. Una rassegna dei diversi modi di ottimizzare l'energia verrà trattata in modo globale e specifico e lo stesso verrà fatto per i metodi di misurazione.
Energy measurement on-board railway rolling stock, a smart metering approach
CUBILLOS BELTRAN, CESAR DANILO
2022/2023
Abstract
The measurement of energy on-board railway stock vehicles shows the aggregated load of traction and auxiliaries, which does not allow to identify possible sources of waste of energy in each feature. In this document the energy consumption of auxiliary services for the vehicles Hitachi “Rock” Caravaggio and Stadler RABe 524 “TiLo” are computed to be placed under analysis. By using real measurements of the net energy managed by the locomotives, an electromechanical model is defined in order to find an approximation of the power profile for auxiliaries. Once this information is known the analysis focuses on evaluating the performance of the heating ventilation air-conditioned system (HVAC) which represents the biggest share of the whole auxiliary consumption. The analysis shows possible sources of energy waste during operation with respect to the number of passengers on-board, and another cause of waste during dwell time; both sources of waste can be mitigated by the use of Smart Metering on-board. The advantage of Smart Metering is explained through the proposal of two scenarios of implementation of meters on board in order to increase the efficiency of energy consumption. A review of the literature about the different ways to optimize energy are going to be treated in a global and specific matter as the same is done for metering methods.File | Dimensione | Formato | |
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Energy Measurement On-Board Railway Rolling Stock a Smart Metering Approach.pdf
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Descrizione: Thesis Main Document
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4.02 MB
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Executive Summary Energy Measurement On-Board Railway Rolling Stock, a Smart Metering Approach.pdf
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Descrizione: Executive Summary
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1.23 MB
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1.23 MB | Adobe PDF | Visualizza/Apri |
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https://hdl.handle.net/10589/205296