Energirelaterad fordonsforskning

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Presentation transcript:

Energirelaterad fordonsforskning Waste Heat Recovery from Combustion Engines Gunnar Latz PhD Student Chalmers University of Technology Energirelaterad fordonsforskning Göteborg 09.10.2014

Project facts Program: Fordonsstrategisk Forskning och Innovation (FFI) Project start/end: 01/2014 – 06/2015 (2. Phase) Project leader: Ingemar Denbratt, Chalmers Budget: 1.195 kSEK per university (2014)

Project organisation The project is performed and coordinated by the three Swedish competence centers in combustion technology CCGEx (KTH) Competence Center for Gas Exchange KCFP (Lund University) Kompetenscentrum Förbränningsprocesser CERC (Chalmers) Combustion Engine Research Center Volvo Car Corporation

Motivation – Energy balance ~21 % Coolant and radiation Fuel Energy (100 %) Mechanical Energy ~42 % 46 % ~11 % ~15 % ~11 % Heat recovery Charge air cooler (200°C) Exhaust gas (250°C) EGR (450°C) Source: GT-Power model for Volvo MD13 engine

Project goals Evaluation of different heat-recovery technologies Identifying gaps in knowledge for the respective technology Creating simulation models and validate them by means of experiments or available experimental data Providing scenarios for the applicability both in light duty and heavy duty vehicles

CCGEx Project: Turbocompound PhD Student: Habib Aghaali (since March 2012, before: Gustav Ericsson) Senior researcher: Hans-Erik Ångström

Fuel consumption improvement [%] Turbocompound + Divided Exhaust Period (DEP) + Externally Divided Exhaust Period (ExDEP)  Potential to decrease fuel consumption up to 4 %

CERC Project: Rankine Cycle PhD Student: Gunnar Latz Senior researcher: Sven Andersson, Karin Munch

Waste heat (e.g. exhaust gas) Simulation models Experiments Design data Waste heat (e.g. exhaust gas) Evaporator Condenser Expansion device Fluid pump Work output Rankine Cycle Validation data  Potential to decrease fuel consumption by 4 – 6 %

KCFP Project: Humid Air Motor (HAM) PhD Student: Prakash Narayanan (since October 2011, before: Mengqin Shen) Senior researcher: Martin Tunér, Per Tunestål

Engine Humidifier Reduced in-cylinder temperatures  Reduction of NOx Benefits of the HAM concept over conventional EGR engine: Lower heat losses “Free” vapor expansion over the turbine Reduction of in-cylinder pumping losses  Potential to decrease fuel consumption upto ~8% (best operating point)

Thank you for your attention!