Heat Transfer Experiments in an Insulated Diesel

Morel, Thomas; Wahiduzzaman, Syed; Fort, Edward F.

doi:10.4271/880186

Cited by 45 publications

(18 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, the interest for the heat transfer phenomena in reciprocating internal combustion engines has been greatly intensi"ed, because of their major importance, among other aspects, on successful thermodynamic cycle simulations Way, 1969}1970;Woschni and Spindler, 1988;Kouremenos et al, 1989Kouremenos et al, , 1990Rakopoulos, 1991;Rakopoulos et al, 1995a) and investigations of thermal loading at critical places in the combustion chamber components (Keribar and Morel, 1987;Morel et al, 1988;Enomoto and Furuhama, 1989). The complexity of heat transfer in internal combustion engines is greatly involved, since the relevant phenomena are transient, three-dimensional, with complex-shaped moving boundaries, and subject to rapid swings in cylinder gas pressure and temperatures (Alkidas and Myers, 1982;Alkidas and Cole, 1985;Borman and Nishiwaki, 1987;Mure and Rhee, 1989;Han et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Measurements and analysis of load and speed effects on the instantaneous wall heat fluxes in a direct injection air-cooled diesel engine

Rakopoulos¹,

Mavropoulos²,

Hountalas³

2000

Int. J. Energy Res.

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Measurements and analysis of load and speed effects on the instantaneous wall heat fluxes in a direct injection air-cooled diesel engine

Rakopoulos¹,

Mavropoulos²,

Hountalas³

2000

Int. J. Energy Res.

View full text Add to dashboard Cite

“…In this work YSZ is used as coating layer. Table 1 shows the thermal conductivity of cylinder wall materials and insulators [5]. It was showed that in the diesel injection engines which have a high temperature, PSZ and YSZ have a significant effect on the performance [6].…”

Section: Introductionmentioning

confidence: 97%

“…Heat transfer coefficient from hot gas to combustion chamber surfaces greatly rely on a chemical reaction pattern. In 1988, Morel et al [5] used a zirconiabased material to coat a DI single cylinder diesel engine that measured heat flux decrement. This subject that heat transfer rate with combustion chamber's temperature enhancement, increases or not is a controversial question.…”

Section: Introductionmentioning

confidence: 99%

The multi-zone model of the low heat rejection engine for DI diesel injection engines

Ghorbani

Sasan

2015

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

“…There is data in the literature which suggests contradictory results. , and Morel et al (1988) have data and or calculations which suggest that insulated engine components decrease the heat transfer from the combustion chamber, while the data of Woshni et al (1987), Alkidas (1989) and Gatowski (1990) indicate that insulating the combustion chamber results in higher levels of heat transfer. Graduate student Mark , initially under TACOM funding and then under ARO funding, ran a series of experiments on the Cummins single cylinder NH engines that were both insulated and non-insulated in an attempt to understand these apparent contradictions.…”

Section: Basic Combustion Studiesmentioning

confidence: 99%

Center for Advanced Propulsion Systems

Borman¹,

Corradini²,

Farrell³

et al. 1993

View full text Add to dashboard Cite

Public reporting burden for this c011ection of informatio IS estimated to averaage I hour Per response. including the time lot reiew0g mstructions, searching existing data source%.gathern and maintainr th, data needed, and completing and reviewing the collection of information Send comments regarding this burden estimate or any other aspect of this collection Of information, including suggestions for reducing this burden. SUPPLEMENTARY NOTESThe view, opinions and/or findings contained in this report are those of the author(s) and should not be construed as an official Department of the Army position, policy, or decision, unless so designated by other documentation. 12a. DISTRIBUTION / AVAILABIUTY STATEMENT 12b. DISTRIBUTION CODEApproved for public release; distribution unlimited. ABSTRACT (Maximum 200 words)This final report covers a six year period of research conducted by the Engine Research Center. The objectives of the ERC are: 1) to train students in special areas of diesel research of interest to the Army and its industrial suppliers, 2) provide a source of consultation for the Army, 3) provide knowledge and research tools for solution of long range problems of interest to the Army, 4) provide solution methods for problems of immediate interest to the Army, 5) to identify and explore new technologies which have potential value to the Army. A brief account is given of how these objectives were addressed. Subjects covered are; faculty, facilities, publications, and research results. The research topic areas discussed are: engine modeling; canbustion, emissions and fuels; heat transfer; fluid mechanics; diesel sprays; lubrication, mechanical design and materials.14. SUBJECT Comparison between measured and predicted cylinder 36 pressure (left) and wall heat flux (right) for premixedcharge SI engine combustion using heat transfer model with (modified case) and without (original) the effect of compressibility and unsteadiness. Engine speed 1500 rev/min. 7.1.2Comparison between computed (dashed line) and 36 measured (solid line) cylinder pressures (left) and wall heat flux (right) for compression ignited, homogeneous charge engine combustion (engine speed 1200 rev/min, compression ratio 10.5, swirl ratio 1.8, equivalence ratio 0.4). 7.1.3Predicted pressure histories obtained by incorporating the 39 multistep Shell ignition model (Case 2) and the standard one-step Arrhenius kinetics model (Case 1). 7.1.4Intake flow computation using the unstructured grid 40 version of KIVA-3 for stationary valves. 7.1.5Calculated cylinder pressures with and without ignition at 44 100 rpm and initial air temperatures of 241 K and 298 K. Optical window relative position to the combustion 61 chamber(part 2 of 2). 7.2.9The instrumentation system. 62 7.2.10 Flame temperature and soot concentration factor KL at 63 three angular positions for window A (24, 25, 26-3). 7.2.11Flame temperature and soot concentration factor KL at 64 three angular positions for window B (24, 25, 26-3). 7.2.12Flame temperature and soot concentration facto...

show abstract

Heat Transfer Experiments in an Insulated Diesel

Cited by 45 publications

References 15 publications

Measurements and analysis of load and speed effects on the instantaneous wall heat fluxes in a direct injection air-cooled diesel engine

Measurements and analysis of load and speed effects on the instantaneous wall heat fluxes in a direct injection air-cooled diesel engine

The multi-zone model of the low heat rejection engine for DI diesel injection engines

Center for Advanced Propulsion Systems

Contact Info

Product

Resources

About