Experimental study on charge air heat utilization of large-scale reciprocating engines by means of Organic Rankine Cycle

Antti Uusitalo (Corresponding Author), Juha Honkatukia, Jari Backman, Sami Nyyssönen

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Abstract

Power systems based on Organic Rankine Cycle (ORC) technology have been recognized as one of the most promising solutions in converting low- and medium-temperature heat into electricity. In this paper, experimental results of the utilization of charge air heat by means of ORC are presented. The experimental setup consists of a 1.6 MWe diesel engine and an ORC process utilizing charge air heat in which the turbine-generator has been replaced with an expansion valve. Thus, no mechanical or electrical power was extracted from the system and the primary focus of the experiments was to study the performance of the evaporator acting as a charge air cooler. The studied working fluids were R245fa and isopentane. The test runs were carried out at full engine load and at engine part loads. In addition, transient tests were carried out. Based on the measured values the ORC utilizing charge air heat was evaluated to be capable to increase the power output of the test engine by 2%.
Original languageEnglish
Pages (from-to)209-219
JournalApplied Thermal Engineering
Volume89
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

Fingerprint

Rankine cycle
Engines
Air
Turbogenerators
Evaporators
Diesel engines
Electricity
Fluids
Hot Temperature
Experiments
Temperature

Keywords

  • charge air
  • organic fluid
  • organic Rankine cycle
  • waste heat recovery

Cite this

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title = "Experimental study on charge air heat utilization of large-scale reciprocating engines by means of Organic Rankine Cycle",
abstract = "Power systems based on Organic Rankine Cycle (ORC) technology have been recognized as one of the most promising solutions in converting low- and medium-temperature heat into electricity. In this paper, experimental results of the utilization of charge air heat by means of ORC are presented. The experimental setup consists of a 1.6 MWe diesel engine and an ORC process utilizing charge air heat in which the turbine-generator has been replaced with an expansion valve. Thus, no mechanical or electrical power was extracted from the system and the primary focus of the experiments was to study the performance of the evaporator acting as a charge air cooler. The studied working fluids were R245fa and isopentane. The test runs were carried out at full engine load and at engine part loads. In addition, transient tests were carried out. Based on the measured values the ORC utilizing charge air heat was evaluated to be capable to increase the power output of the test engine by 2{\%}.",
keywords = "charge air, organic fluid, organic Rankine cycle, waste heat recovery",
author = "Antti Uusitalo and Juha Honkatukia and Jari Backman and Sami Nyyss{\"o}nen",
year = "2015",
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pages = "209--219",
journal = "Applied Thermal Engineering",
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}

Experimental study on charge air heat utilization of large-scale reciprocating engines by means of Organic Rankine Cycle. / Uusitalo, Antti (Corresponding Author); Honkatukia, Juha; Backman, Jari; Nyyssönen, Sami.

In: Applied Thermal Engineering, Vol. 89, 2015, p. 209-219.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Uusitalo, Antti

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AB - Power systems based on Organic Rankine Cycle (ORC) technology have been recognized as one of the most promising solutions in converting low- and medium-temperature heat into electricity. In this paper, experimental results of the utilization of charge air heat by means of ORC are presented. The experimental setup consists of a 1.6 MWe diesel engine and an ORC process utilizing charge air heat in which the turbine-generator has been replaced with an expansion valve. Thus, no mechanical or electrical power was extracted from the system and the primary focus of the experiments was to study the performance of the evaporator acting as a charge air cooler. The studied working fluids were R245fa and isopentane. The test runs were carried out at full engine load and at engine part loads. In addition, transient tests were carried out. Based on the measured values the ORC utilizing charge air heat was evaluated to be capable to increase the power output of the test engine by 2%.

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