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Enhancing EGR Engine Performance: Turbocharging Impact and Data Delivery Insights

This presentation explores the turbocharging of EGR (Exhaust Gas Recirculation) engines, detailing the performance consequences and the status of data delivery systems. Key topics include the control of actuators, sensor integration, new engine running modes, and the implications of increasing heat load on combustion chambers. It highlights performance comparisons with Tier 2 engines, the role of EGR blower power, and optimization methods for future Tier 3 systems. The presentation also discusses market influences on variant development and introduces the upcoming 'EGR.Calc' tool.

debra-brady
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Enhancing EGR Engine Performance: Turbocharging Impact and Data Delivery Insights

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Presentation Transcript

  1. EGR Performance in 20 Minutes Agenda: Turbocharging of EGR Engines Performance Consequences Status for Data Delivery (LDF)

  2. ’Understanding’ Turbocharging (LDF)

  3. TC Cut Out Matching (LDF)

  4. Bypass Matching (LDF)

  5. Consequences • ECS: • Control of all actuators and sensors • New Engine Running Mode functionality • New Running Modes • Combustion Chamber: • Heat load increases to WHR level • Exhaust Gas Temperatures: • Not lower than Tier 2  • Engine Types: • MC/MCC not available (LDF)

  6. SFOC Compared to Tier 2 HL (g/kWh excl EGR Blower & WTS) EGR Blower Power ½-1% of SMCR shaft power (LDF)

  7. SFOC Compared to Tier 2 HL (g/kWh excl EGR Blower & WTS) Standard Tier 2 Engine WHR Tier 2 Engine EGR Blower Power ½-1% of SMCR shaft power (LDF)

  8. SFOC Compared to Tier 2 HL (g/kWh excl EGR Blower & WTS) EGR Blower Power ½-1% of SMCR shaft power (LDF)

  9. Consequences concerning Optimisation Methods • Points to remember…. • Today, we have no optimisation methods for Tier 3 mode • Today’s WHR systems have low potential in Tier 3 • Today’s WHR systems have unchanged potential in Tier 2 • ‘Market’ must help us decide which variants we should add (LDF)

  10. The Different CEAS Approaches CEAS EGR Calc INTERNET LEE CEAS Ammendments EGR Calc (LDF)

  11. EGR Performance in 20 Minutes Summary • Turbocharging of EGR Engines • EGR Cooler changes the energy system • ‘TC Cut Out’ and ‘Bypass’ Matching • Performance Consequences • New SFOC Figures • SFOC Optimisations integrated as standard • Market input will affect development of variants • Status for Data Delivery • ‘EGR Calc’ available within March • New CEAS approach is being developed (LDF)

  12. G80 Results Part 1: 7G80ME-C9.2 (HHI January) L1 was not possible due to specified MCR Two atomizers became relevant Best Possible SFOC Required more Piston Shims SFOC & NOx within tolerances Piston temperatures relatively high Due to shims, exhaust valve lift height must be modified Part 2: 6G80ME-C9.2 (HHI March) L1 Rating Possible Heat load will be verified Heavy running will be tested (LDF)

  13. SFOC Compared to Tier 2 HL (g/kWh excl EGR Blower & WTS) EGR Blower Power <1% of SMCR shaft power at 100% (LDF)

  14. Status for Data Deliveries (CEAS) User Input EGR Calc LDF Design Input CEAS Data DS Data (LDF)

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