E101 A study of application DME-LPG blended fuel to gas engine for micro cogeneration

Nakazono, Tohru; Raihan, Khandoker Abu; Nshimura, Akihiro

doi:10.1299/jsmepes.2008.13.189

Cited by 3 publications

(4 citation statements)

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“…Ponieważ DME cechuje wysoka liczba cetanowa większość prowadzonych obecnie prac badawczo-rozwojowych i wdrożeniowych dotyczy jego wykorzystania do zasilania silników zS. Mając jednak na uwadze fakt, iż własności fizykochemiczne DME są podobne do LPG, jest on również mieszany z LPG i używany, jako paliwo dla urządzeń grzewczych oraz silników gazowych napędzających generatory i pompy ciepła [1,2]. Łatwość mieszania LPG i DME i wykorzystania tej mieszaniny, jako suplementu lub też zamiast LPG, sprzyja zarówno dywersyfikacji paliw jak i zwiększeniu bezpieczeństwa energetycznego.…”

Section: Wprowadzenieunclassified

“…Due to a high cetane number of DME the main research programs carried out by different centers concentrate on the application of DME in CI engines. However, taking into consideration the fact that physicochemical properties of DME are similar to LPG, it can be blended with LPG and applied as a fuel for heating devices and gas engine based generators and heat pumps [1,2]. The ease of LPG and DME blending and using this mixture either as an additive or substitute for pure LPG opens an opportunity of diversification of the fuel sources together with an increasing energy security.…”

Section: Introductionmentioning

confidence: 99%

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The effects of blending dimethyl ether with LPG on the engine operation and its efficiency

Flekiewicz

Kubica

2013

Combustion Engines

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The paper presents a continuation of a research program related to the activators for gaseous fuels used in modern vehicles. Selected vehicle dynamic parameters obtained by the application of a mixture of LPG and DME for the mass share of 0 to 26% have been presented. The object of the research was a 1.6 SI engine adapted to a combustion ofgase ous fuels. The authors present the results of the energy conversion effciency in a four cylinder SI 1.6 cm3 engine.

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Section: Wprowadzenieunclassified

Section: Introductionmentioning

confidence: 99%

The effects of blending dimethyl ether with LPG on the engine operation and its efficiency

Flekiewicz

Kubica

2013

Combustion Engines

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“…In the case of LPG-DME mixtures Nakazono et al [17] showed that DME can be blended with LPG because characteristics of DME are similar to those of LPG, and may be used as gas fuel for a small gas engine. Moreover, the result of this test showed that the knocking limit using DME-mixture fuel could be improved by retarding ignition timing and A/F ratio under the limit of blend ratio without EGR being less than 30%.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Selected Gaseous Fuels on the Combustion Process in the Si Engine

Flekiewicz¹,

Kubica²

2017

Transport Problems

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This paper presents the results of SI engine tests, carried out for different gaseous fuels. The analysis carried out made it possible to define the correlation between fuel composition and engine operating parameters. The tests covered various gaseous mixtures: methane with hydrogen from 5% to 50% by volume and LPG with DME from 5% to 26% by mass. The first group, considered as low-carbon-content fuels can be characterized by low CO 2 emissions. Flammability of hydrogen added in those mixtures realizes the function of the combustion process activator. Thus, hydrogen addition improves energy conversion by about 3%. The second group of fuels is constituted by LPG and DME mixtures. DME mixes perfectly with LPG, and differently than other hydrocarbon fuels, consisting of oxygen as well, which makes the stoichiometric mixture less oxygen demanding. In the case of this fuel an improvement in engine volumetric and overall engine efficiency has been noticed compared with LPG. For the 11% DME share in the mixture an improvement of 2% in the efficiency has been noticed. During the tests, standard CNG-LPG feeding systems have been used, which underlines the utility value of the research. The stand-test results have been followed by combustion process simulation including exhaust forming and charge exchange.

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“…The use of DME as fuel also in SI engines is becoming more frequently considered. Economic and ecological benefits combined with very favorable physicochemical properties are the direct cause of these interests [5,6]. The most important aspect to mention is the possibility of obtaining DME as a renewable fuel produced from biomass.…”

Section: Introductionmentioning

confidence: 99%

The possibilities of using DME (BioDME), as an additive to conventional gaseous fuels in SI engine

2017

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The results of SI engine fueled with blends of LPG and DME are presented in the paper. The range studies submitted includes measurements at varying engine loads, at selected values of speed. The research was conducted on a chassis dynamometer, specifying the engine load by the degree of throttle opening. Value of the mass fraction of DME in the blend with LPG was determined based on previous analyzes. The selected fuel blends containing from 7 to 17% DME (mass fraction). During the study was also performed a series of comparative measurements with pure LPG. Analyses show that of DME can be used as a partial substitute for LPG in SI engines. Its presence does not a negative impact on performance and emissions of the engine. The obtained results indicate that the amount of addition of DME should be varied depending on the engine load. Moreover, the use of this fuel does not require changes to the design fueling system and storage of LPG.

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E101 A study of application DME-LPG blended fuel to gas engine for micro cogeneration

Cited by 3 publications

References 0 publications

The effects of blending dimethyl ether with LPG on the engine operation and its efficiency

The effects of blending dimethyl ether with LPG on the engine operation and its efficiency

The Influence of Selected Gaseous Fuels on the Combustion Process in the Si Engine

The possibilities of using DME (BioDME), as an additive to conventional gaseous fuels in SI engine

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