A comprehensive experimental analysis for optimal flow configurations in a triple tube heat exchanger (TTHXr)

Yadav, Devendra; Kushwaha, Akhilesh; Trivedee, Divakar; Upadhyay, Zenis

doi:10.1016/j.icheatmasstransfer.2022.106385

Cited by 9 publications

(1 citation statement)

References 45 publications

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“…There are especially several studies on design and fluid flow performance analysis of three-fluid heat exchangers. 13,[16][17][18][19][20][21][22] The thermodynamic and WHR studies in literature about triple heat exchangers are not more than two-fluid ones. The one of the first studies is by Sorlie 23 about developing a general theory for two temperature effectiveness of parallel and counter flow type three-fluid heat exchangers.…”

Section: Introductionmentioning

confidence: 99%

Waste heat recovery assessment of triple heat-exchanger usage for ship main engine pre-heating and fresh water generation systems

Çolak,

Ölmez,

Saraç

2023

Proceedings of the Institution of Mechanical Engineers, Part M:

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In this study, the applicability, fuel saving and CO2 emission reducing potential of the triple heat-exchanger fed by the diesel generator exhaust gas with and without water steam have been studied for ship’s one and two main engines pre-heating and freshwater generation (FWG) cycles under port conditions with conducting energy and exergy analysis. The performance criteria (PC) and exergy efficiency (ε) values of the main engine pre-heating and freshwater generator systems of the Ro-Ro ship selected for the case study were determined by written Matlab 2021a codes merging CoolProp 6.4.2 database with Python. It was determined that even at the lowest operating load of the diesel generator (25%), the exhaust heat energy would be sufficient to preheat the main engine and generating fresh water with also saving fuel consumption. As a result, during the 12-h port period, each 1 kW heat energy reduction on steam will provide 0.0853 kg/h fuel saving in the boiler. Thus, 273 kg CO2 emission will be reduced for each kW of heat energy to be obtained. Considering the comparatively increased PC and ε values of whole system cycle containing common triple heat-exchanger for two main engines, it can be used conveniently and reliably on ships.

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