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Author:

Wang, Enhua (Wang, Enhua.) | Zhang, Hongguang (Zhang, Hongguang.) (Scholars:张红光) | Fan, Boyuan (Fan, Boyuan.) | Ouyang, Minggao (Ouyang, Minggao.) | Yang, Kai (Yang, Kai.) | Yang, Fuyuan (Yang, Fuyuan.) | Li, Xiaojuan (Li, Xiaojuan.) | Wang, Zhen (Wang, Zhen.)

Indexed by:

EI Scopus SCIE

Abstract:

A fin-and-tube evaporator can be used for an ORC (organic Rankine cycle) to collect waste heat of the exhaust gas of an internal combustion engine. In this paper, the thermal-hydraulic characteristics of an ORC evaporator are analyzed using a CFD method. A 3D numerical model is derived from an engineering diagram of the fin-and-tube evaporator, and the boundary conditions are specified according to the measured data obtained by the engine test. The simulation results show that the exhaust on the shell side flows primarily parallel with the fin layers. Alternating high and low temperatures appear on the middle planes of the adjacent tube rows. The shapes of the front-end and the rear-end parts connecting the main body to the exhaust pipes are important factors on the flow field. The maximum exhaust pressure decrease in the fin-and-tube evaporator is significantly less than the backpressure limit required by the engine exhaust pipe. The simulation results are verified by an engine experiment, and there exists a correlation between the numerical results and the actual heat transfer process. (C) 2015 Elsevier Ltd. All rights reserved.

Keyword:

Heat transfer Fin-and-tube evaporator Waste heat recovery Organic Rankine cycle 3D numerical simulation

Author Community:

  • [ 1 ] [Wang, Enhua]Beijing Univ technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Zhang, Hongguang]Beijing Univ technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Fan, Boyuan]Beijing Univ technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Yang, Kai]Beijing Univ technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Enhua]Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China
  • [ 6 ] [Ouyang, Minggao]Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China
  • [ 7 ] [Yang, Fuyuan]Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China
  • [ 8 ] [Li, Xiaojuan]Beijing Asimco Tianwei Co Ltd, Beijing 100166, Peoples R China
  • [ 9 ] [Wang, Zhen]North Univ China, Sch Mechatron Engn, Taiyuan 030051, Peoples R China

Reprint Author's Address:

  • 张红光

    [Zhang, Hongguang]Beijing Univ technol, Coll Environm & Energy Engn, Pingleyuan 100, Beijing 100124, Peoples R China

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Source :

ENERGY

ISSN: 0360-5442

Year: 2015

Volume: 82

Page: 800-812

9 . 0 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:174

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 16

SCOPUS Cited Count: 20

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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