Temperature optimisation of a diesel engine using exhaust gas heat recovery and thermal energy storage (diesel engine with thermal energy storage)

Pertti Kauranen (Corresponding Author), T. Elonen, Lisa Wikström, Jorma Heikkinen, Juhani Laurikko

Research output: Contribution to journalArticleScientificpeer-review

26 Citations (Scopus)

Abstract

Modern automotive diesel engines are so energy efficient that they are heating up slowly and tend to run rather cold at subzero temperatures. The problem is especially severe in mail delivery operations where the average speed is low and the drive cycle includes plenty of idling. The problem is typically solved by adding a diesel fuelled additional engine heater which is used for the preheating of the engine during cold start and additional heating of the engine if the coolant temperature falls below a thermostat set point during the drive cycle. However, this additional heater may drastically increase the total fuel consumption and exhaust gas emissions of the vehicle. In this study the additional heater was replaced by a combination of exhaust gas heat recovery system and latent heat accumulator for thermal energy storage. The system was evaluated on a laboratory dynamometer using a simulated drive cycle and in field testing in the city of Oulu (65°N), Finland in February 2009.
Original languageEnglish
Pages (from-to)631-638
Number of pages8
JournalApplied Thermal Engineering
Volume30
Issue number6-7
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

Fingerprint

Exhaust systems (engine)
Waste heat utilization
Exhaust gases
Thermal energy
Energy storage
Diesel engines
Engines
Heating
Thermostats
Dynamometers
Preheating
Latent heat
Gas emissions
Fuel consumption
Coolants
Temperature
Testing

Keywords

  • Diesel engine
  • Heat recovery
  • Thermal energy storage
  • Phase change materials
  • Cold start emissions
  • Fuel economy

Cite this

@article{792e4841519b44d5883028fb934810dd,
title = "Temperature optimisation of a diesel engine using exhaust gas heat recovery and thermal energy storage (diesel engine with thermal energy storage)",
abstract = "Modern automotive diesel engines are so energy efficient that they are heating up slowly and tend to run rather cold at subzero temperatures. The problem is especially severe in mail delivery operations where the average speed is low and the drive cycle includes plenty of idling. The problem is typically solved by adding a diesel fuelled additional engine heater which is used for the preheating of the engine during cold start and additional heating of the engine if the coolant temperature falls below a thermostat set point during the drive cycle. However, this additional heater may drastically increase the total fuel consumption and exhaust gas emissions of the vehicle. In this study the additional heater was replaced by a combination of exhaust gas heat recovery system and latent heat accumulator for thermal energy storage. The system was evaluated on a laboratory dynamometer using a simulated drive cycle and in field testing in the city of Oulu (65°N), Finland in February 2009.",
keywords = "Diesel engine, Heat recovery, Thermal energy storage, Phase change materials, Cold start emissions, Fuel economy",
author = "Pertti Kauranen and T. Elonen and Lisa Wikstr{\"o}m and Jorma Heikkinen and Juhani Laurikko",
year = "2010",
doi = "10.1016/j.applthermaleng.2009.11.008",
language = "English",
volume = "30",
pages = "631--638",
journal = "Applied Thermal Engineering",
issn = "1359-4311",
publisher = "Elsevier",
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}

Temperature optimisation of a diesel engine using exhaust gas heat recovery and thermal energy storage (diesel engine with thermal energy storage). / Kauranen, Pertti (Corresponding Author); Elonen, T.; Wikström, Lisa; Heikkinen, Jorma; Laurikko, Juhani.

In: Applied Thermal Engineering, Vol. 30, No. 6-7, 2010, p. 631-638.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Temperature optimisation of a diesel engine using exhaust gas heat recovery and thermal energy storage (diesel engine with thermal energy storage)

AU - Kauranen, Pertti

AU - Elonen, T.

AU - Wikström, Lisa

AU - Heikkinen, Jorma

AU - Laurikko, Juhani

PY - 2010

Y1 - 2010

N2 - Modern automotive diesel engines are so energy efficient that they are heating up slowly and tend to run rather cold at subzero temperatures. The problem is especially severe in mail delivery operations where the average speed is low and the drive cycle includes plenty of idling. The problem is typically solved by adding a diesel fuelled additional engine heater which is used for the preheating of the engine during cold start and additional heating of the engine if the coolant temperature falls below a thermostat set point during the drive cycle. However, this additional heater may drastically increase the total fuel consumption and exhaust gas emissions of the vehicle. In this study the additional heater was replaced by a combination of exhaust gas heat recovery system and latent heat accumulator for thermal energy storage. The system was evaluated on a laboratory dynamometer using a simulated drive cycle and in field testing in the city of Oulu (65°N), Finland in February 2009.

AB - Modern automotive diesel engines are so energy efficient that they are heating up slowly and tend to run rather cold at subzero temperatures. The problem is especially severe in mail delivery operations where the average speed is low and the drive cycle includes plenty of idling. The problem is typically solved by adding a diesel fuelled additional engine heater which is used for the preheating of the engine during cold start and additional heating of the engine if the coolant temperature falls below a thermostat set point during the drive cycle. However, this additional heater may drastically increase the total fuel consumption and exhaust gas emissions of the vehicle. In this study the additional heater was replaced by a combination of exhaust gas heat recovery system and latent heat accumulator for thermal energy storage. The system was evaluated on a laboratory dynamometer using a simulated drive cycle and in field testing in the city of Oulu (65°N), Finland in February 2009.

KW - Diesel engine

KW - Heat recovery

KW - Thermal energy storage

KW - Phase change materials

KW - Cold start emissions

KW - Fuel economy

U2 - 10.1016/j.applthermaleng.2009.11.008

DO - 10.1016/j.applthermaleng.2009.11.008

M3 - Article

VL - 30

SP - 631

EP - 638

JO - Applied Thermal Engineering

JF - Applied Thermal Engineering

SN - 1359-4311

IS - 6-7

ER -