Waste Heat Recovery from Multiple Heat Sources in a HD Truck Diesel Engine Using a Rankine Cycle - A Theoretical Evaluation Lund University

Format:

Conference/Event

Author/Creator:

Arunachalam, Arunachalam, author.

Contributor:

Shen, Mengqin

Thern, Marcus

Tuner, Martin

Tunestal, Per

Conference Name:

SAE 2012 International Powertrains, Fuels & Lubricants Meeting (2012-09-18 : Malmo, Sweden)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

Few previous publications investigate the possibility ofcombining multiple waste heat sources in a combustion engine wasteheat recovery system. A waste heat recovery system for a HD truckdiesel engine is evaluated for utilizing multiple heat sourcesfound in a conventional HD diesel engine. In this type of enginemore than 50% of heat energy goes futile. The majority of the heatenergy is lost through engine exhaust and cooling devices such asEGRC (Exhaust gas recirculation cooler), CAC (Charge air cooler)and engine cooling. In this paper, the potential of usable heatrecuperation from these devices using thermodynamic analysis wasstudied, and also an effort is made to recuperate most of theavailable heat energy that would otherwise be lost.A well-known way of recuperating this heat energy is byemploying a Rankine cycle circuit with these devices as heatsources (single loop or dual loop), and thus this study is focusedon using a Rankine cycle for the heat recovery system. Furthermore,this paper investigates the possibilities and challenges involvedin coupling these different sources in a single Rankine cycle andthe selection of suitable working fluid for this Rankine cycle. Thestudy shows that with recuperation from these multiple sources itis possible to recover 5-10% of the otherwise wasted heat energy,which results in ~5% power increase.REFPROP was used for studying fluid properties, and thecommercial software IPSEpro is used to build and simulate theRankine cycle

Notes:

Vendor supplied data

Publisher Number:

2012-01-1602

Access Restriction:

Restricted for use by site license