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Exhaust emissions from diesel engines. Effects of starting and operating temperature and fuel; Dieselmoottorien pakokaasupaeaestoet. Kaeynnistys- ja kaeyttoelaempoetilan sekae polttoaineen vaikutukset

Technical Report:

Abstract

The amount and composition of exhaust emissions from diesel engines at cold-start and before reaching the normal running temperature wet determined. Both direct injection and prechamber-type high-speed engines were studied. Experiments wet carried out in the temperature range of +20 - -30 deg C, applying bout constant and cyclic load during a half-an-hour test period. Emission test were also performed with the direct injection engine in accordance with the ECE R-49 regulation by keeping the engine at the running temperature and the ambient temperature lower than normally. All diesel fuels commercially available in Finland and one jet engine fuel suited also for diesel engines were used in the experiment. The measuring results indicated that the exhaust gas emissions from the direct injection engine change more than those from the precombustion chamber engine when the start-up and running temperatures decline. These differences may be due to differences in combustion chamber types. In the direct injection engine the emissions of carbon monoxide (CO) and unburnt hydrocarbons (HC) were increased by the decline in the start-up temperature, while the start-up temperature had only a minor effect on nitrogen oxide (NO{sub x}) emissions. There were only insignificant differences between the tested fuel grades. The  More>>
Authors:
Laurikko, J [1] 
  1. Technical Research Centre of Finland, Espoo (Finland). Lab. of Fuel and Process Technology
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
VTT-JULK-761
Reference Number:
SCA: 330102; 540120; PA: FI-92:003425; SN: 93000918034
Resource Relation:
Other Information: PBD: 1992
Subject:
33 ADVANCED PROPULSION SYSTEMS; 54 ENVIRONMENTAL SCIENCES; DIESEL ENGINES; EMISSION; EXHAUST GASES; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; DIESEL FUELS; FUEL INJECTION SYSTEMS; CARBON MONOXIDE; HYDROCARBONS; NITROGEN OXIDES; 330102; 540120; DIESEL; CHEMICALS MONITORING AND TRANSPORT
OSTI ID:
10111639
Research Organizations:
Technical Research Centre of Finland, Espoo (Finland)
Country of Origin:
Finland
Language:
Finnish
Other Identifying Numbers:
Other: ON: DE93752852; ISBN 951-38-4109-X; TRN: FI9203425
Availability:
OSTI; NTIS
Submitting Site:
FI
Size:
51 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Laurikko, J. Exhaust emissions from diesel engines. Effects of starting and operating temperature and fuel; Dieselmoottorien pakokaasupaeaestoet. Kaeynnistys- ja kaeyttoelaempoetilan sekae polttoaineen vaikutukset. Finland: N. p., 1992. Web.
Laurikko, J. Exhaust emissions from diesel engines. Effects of starting and operating temperature and fuel; Dieselmoottorien pakokaasupaeaestoet. Kaeynnistys- ja kaeyttoelaempoetilan sekae polttoaineen vaikutukset. Finland.
Laurikko, J. 1992. "Exhaust emissions from diesel engines. Effects of starting and operating temperature and fuel; Dieselmoottorien pakokaasupaeaestoet. Kaeynnistys- ja kaeyttoelaempoetilan sekae polttoaineen vaikutukset." Finland.
@misc{etde_10111639,
title = {Exhaust emissions from diesel engines. Effects of starting and operating temperature and fuel; Dieselmoottorien pakokaasupaeaestoet. Kaeynnistys- ja kaeyttoelaempoetilan sekae polttoaineen vaikutukset}
author = {Laurikko, J}
abstractNote = {The amount and composition of exhaust emissions from diesel engines at cold-start and before reaching the normal running temperature wet determined. Both direct injection and prechamber-type high-speed engines were studied. Experiments wet carried out in the temperature range of +20 - -30 deg C, applying bout constant and cyclic load during a half-an-hour test period. Emission test were also performed with the direct injection engine in accordance with the ECE R-49 regulation by keeping the engine at the running temperature and the ambient temperature lower than normally. All diesel fuels commercially available in Finland and one jet engine fuel suited also for diesel engines were used in the experiment. The measuring results indicated that the exhaust gas emissions from the direct injection engine change more than those from the precombustion chamber engine when the start-up and running temperatures decline. These differences may be due to differences in combustion chamber types. In the direct injection engine the emissions of carbon monoxide (CO) and unburnt hydrocarbons (HC) were increased by the decline in the start-up temperature, while the start-up temperature had only a minor effect on nitrogen oxide (NO{sub x}) emissions. There were only insignificant differences between the tested fuel grades. The low ambient temperature also affected the emissions of the warmed-up engine. The CO and HC emissions increased, dependent on the fuel used, to 1.2--1.5-fold compared to those measured at a normal temperature, while the NO{sub x} emissions remained practically unchanged. In the direct injection engine the formation of so-called white smoke was found to be intensive after the cold start-up.}
place = {Finland}
year = {1992}
month = {Dec}
}