Methodology and calculations of CO2 emissions for helicopters

Abstract

This method estimates the equivalent amount of carbon dioxide emitted by a fleet of helicopters during a plurality of missions based on the mass of fuel consumed and the carbon intensity (eCO2) of the fuel used by these helicopters. It involves using a model to calculate mission durations that take into account the actual operating hours of the helicopter engines, a model to define the engine type or type of the helicopters and their associated fuel consumption, and a model used to define a profile of these missions. Figure 2.

Claims

Demands

1. A method for estimating the quantity of carbon dioxide equivalent, hereinafter eCO2, emitted by a fleet of helicopters during a plurality of missions based on the mass of fuel consumed and the carbon intensity in eCO2 of the fuel used by said helicopters, said method comprising: i / the collection and recording, in a database, of data including actual operating hours of the engines of said helicopters, data relating to the engine type and type of said helicopters, data relating to the profiles of said missions including a breakdown into flight phases comprising at least start-up, take-off and climb, cruise, approach and landing, idle and stop, as well as data relating to fuel consumption for each helicopter, the latter being collected by a collection and transmission system,as well as ii / the use of a model to calculate fuel consumption based on actual operating hours, engine type and mission profile, and to multiply said consumption by the carbon intensity of the fuel in order to estimate said quantity eCO2. EMS - H145 - Flight EDR12963 - Duration 48 minutes 38 seconds, including 29 minutes 26 seconds with engines running - Average fuel consumption 218 kg / hour - 106.9 kg of jet fuel consumed on the mission 250.0 ................................................ :......0.0 'T” 1— T— 'B— T— T“ l / h / engine seconds [Fig. 3] [Fig. 4] E - ecc + e! + ep + eid + eE - eace - e - e where E = total emissions from the use of the fuel; ecc emissions from the extraction or cultivation of raw materials; ®i annualized! emissions from carbon stock changes caused by land-use changes; — emissions from Processing; — emissions from transport and distribution; s emissions from the fuel in use; ©ace emission savings from soil sorbon accumulation via improved agricultural management; e = emission savings from CO2 capture and geological storage; and e — emission savings from CO2 capture and replacement. [Fig. 5] Summary of the values ​​retained in gCO2e / MJ for the SAF (E2S UPPA, Jb Jarin) 200 ..... ............................................................................................................................................................................................... 150 » 100 [Fig. 6] Mission duration - EMS profile (47 missions, in min.s) 60.00 50.00 OiOO ......................................................... 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 [Fig. 7] Mission Time - Average |?] Start - Idle, in seconds pÇj Cruise - Mission in seconds | | Idle - Stop in seconds TO - Climb in seconds Q Approach in seconds Fuel Burn - Mission below 10 minutes [71 Fuel Burn Start-Idle (kg) Q Fuel Burn Cruise - Mission (kg) | | Fuel Burn Idle - Stop (kg) Fuel Burn TO - Climb (kg) □ Fuel Burn Approach (kg) [Fig. 8] EMS - H145 - Flight EDR12963 - Durée 48mn38 dont 29mn26 moteurs allumés - Moyenne de 218 kg / heure -106,9 kg de Jet Fuel sur la mission 250,0 l / h / moteur T" T" T“ T“ ’C” Helicopter turboshaftengines: Fuel Flow up to 2000 SHP 0,1200-1 0,1000- 1 0,0800- = 0,0600- 0,0400- 0,0200- 0,0000- ■Tui boshaf : engin* » data i pto20 O0SHP ■Fut 1 Flow ^pprox 2000S HP 200 400 600 800 1000 1200 1400 1600 1800 2000 SHF [Fig. 10] Mission simplifiée, 21mn58, Type EMS [Fig. 12] EMS (H145), Fuel Burn in kg / h detailed by flight phases for 8 detailed Fuel Burn TO-Climb (kg) Fuel Burn Idle - Stop (kg) Fuel Burn Cruise - Mission (kg) 453? >5$ s, >. [Fig. 14] Phase de vol en % £3] Start - Idle Q Approach [Fig. 15]

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