The Second Generation Turbosteamer

Freymann, Raymond; Ringler, Jürgen; Seifert, Marco; Horst, Tilmann

doi:10.1365/s38313-012-0138-1

Cited by 43 publications

(31 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This waste heat recovery system is composed of two Rankine cycles used to recover waste heat from the coolant and from the exhaust gases. In the following years, that system evolved and used only one Rankine cycle [15]. This last version of the turbosteamer produced electricity with a small impulsion turbine of maximum 2 kW and a target of 10% of improvement in the fuel consumption seemed conceivable.…”

Section: Waste Heat Recovery Technologies: Complete State Of the Artmentioning

confidence: 99%

See 1 more Smart Citation

Comparison and Impact of Waste Heat Recovery Technologies on Passenger Car Fuel Consumption in a Normalized Driving Cycle

et al. 2014

View full text Add to dashboard Cite

Abstract:The purpose of this article was to compare different waste heat recovery system technologies designed for automotive applications. A complete literature review is done and results in two comparative graphs. In the second part, simulation models are built and calibrated in order to assess the fuel consumption reduction that can be achieved on a real driving cycle. The strength of this article is that the models are calibrated using actual data. Finally, those simulations results are analyzed and the Rankine cycle and turbocompound are the two most profitable solutions. However the simulations of the turbocompound shows its limitations because the impact on the exhaust pressure drop is not taken into account in the assessment of the car fuel consumption. Fuel reduction of up to 6% could be achieved, depending on the driving cycle and the waste heat recovery technology.

show abstract

Section: Waste Heat Recovery Technologies: Complete State Of the Artmentioning

confidence: 99%

“…However, the choice of the technology cannot be based on that only factor. [15,27,30,33,39,40]. Adapted from [15,27,30,33,39,40].…”

Section: Waste Heat Recovery Technologies: Complete State Of the Artmentioning

confidence: 99%

Comparison and Impact of Waste Heat Recovery Technologies on Passenger Car Fuel Consumption in a Normalized Driving Cycle

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Preheating processes are mostly coupled with air-conditioning systems of the passenger cabin [27][28][29]. Recovered mechanical energy could be coupled directly into the engine's crankshaft, used to run compressors for charging purposes, or used to run generators for production of electrical energy [12,16,[19][20][21][22]. As storable types of energy, either heat [30] or electrical energy is taken into account [23].…”

Section: Characteristics Of Internal Combustion Enginesmentioning

confidence: 99%

“…The basic target of the work is to improve the efficiency and flexibility of heavy-truck-based automotive heat recovery cycles [18][19][20]. In the area of passenger cars only one implemented waste heat recovery application with a relativly big engine is known [21,22]. A further field of research in reducing waste heat is direct recovery of electrical energy in so-called thermoelectrical devices.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Waste Heat Recovery Options in Passenger Car Applications by Various Rankine Cycles

Heidrich

Krisch

2014

Heat Transfer Engineering

View full text Add to dashboard Cite

In power plant applications it is state of the art to recover waste heat in combined-cycle power plants. Hence, overall efficiencies are increased from 35% to more than 45%. Actually, in marine applications as well as in commercial vehicle applications, similar technologies are developed to recover waste heat. The common basis of all these applications is running only or mostly at steady-state conditions. With passenger cars the operation conditions are completely different, as passenger cars are operated under highly transient conditions. In the work presented, the characteristics of a passenger car-based internal combustion engine are analyzed. From exhaust gas temperatures and exhaust gas mass flows, the characteristic of available waste heat over load and speed is estimated. Based on this characteristic an ideal, a water-based Rankine cycle is designed and compared with different organic Rankine cycles. Finally, the expected waste heat recovery at typical passenger car operation conditions is determined by weighting the waste heat recovery characteristics with the operation conditions of the new European driving cycle (NEDC). Based on NEDC scenario, only about 0.2 kW of power could be recovered. By moving toward range extender conditions, between 2.5 and 4.0 kW would be recoverable.

show abstract

“…To mention a few examples, BMW ( [1], [2]), Honda ( [3], [4]) and Ford [5] have recently 1 P. Tona, J. Peralez and A. Sciarretta are with the Control, Signal and System Department at IFP Energies Nouvelles, France {paolino.tona, johan.peralez, antonio.sciarretta}@ifpen.fr worked on this topic for cars, Cummins [6], Caterpillar [7], Daimler Trucks [8] and Volvo [9] for trucks. The interest of manufacturers is justified by announced reductions in fuel consumption ranging from 5 to 10%, depending on the system and the driving cycle.…”

Section: Introductionmentioning

confidence: 99%

Supervision and control prototyping for an engine exhaust gas heat recovery system based on a steam Rankine cycle

Tona

Peralez

Sciarretta

2012

2012 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)

View full text Add to dashboard Cite

Abstract-Rankine-cycle waste heat recovery systems for automotive applications have been the focus of intensive research in recent years, as they seem to offer considerable potential for fuel consumption reduction. Because of the highly transient conditions they are subject to, control plays a fundamental role to enable viability and efficiency of those systems. Yet, surprising little research has been devoted to this topic. This paper illustrates the design of a practical supervision and control system for a pilot Rankine steam process for exhaust gas heat recovery from a spark-ignition engine. The proposed control strategy for power production focuses more on ensuring continuity of operation than on the pursuit of optimality. The resulting decentralized control system is implemented via two anti-wind up controllers with feedforward action.Performance has been assessed in simulation on a motorway driving cycle using real engine exhaust data. Despite very transient exhaust gas conditions, we show that the expander can produce power throughout the cycle, avoiding start-stop procedures, which would greatly reduce the global efficiency.

show abstract

The Second Generation Turbosteamer

Cited by 43 publications

References 1 publication

Comparison and Impact of Waste Heat Recovery Technologies on Passenger Car Fuel Consumption in a Normalized Driving Cycle

Comparison and Impact of Waste Heat Recovery Technologies on Passenger Car Fuel Consumption in a Normalized Driving Cycle

Assessment of Waste Heat Recovery Options in Passenger Car Applications by Various Rankine Cycles

Supervision and control prototyping for an engine exhaust gas heat recovery system based on a steam Rankine cycle

Contact Info

Product

Resources

About