FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2747252028> ?p ?o ?g. }

• W2747252028 abstract "The requirement for efficient power sources for portable electronics and miniature mechanical devices, such as laptops, micro robots or micro aerial vehicles, has led to research on ultra micro gas turbine (UMGT). The ultra micro gas turbine is one of the most promising power sources for small scale applications due to its higher power and energy densities compared to currently used batteries. In order to realise UMGT as a viable power source, its individual components have to be developed, since downscaling introduces new problems for each component. Since the micro combustor is one of the key components of UMGT, it is an obvious area for investigation and improvement. Until now, it has been very difficult for micro combustors to achieve wide flame stability, high combustion efficiency and clean combustion with low pressure loss, due to the associated downscaling problems, such as high heat loss ratio and small residence time. In order to overcome the issues associated with smaller residence time, preheating the reactants was investigated in the present study, both experimentally and numerically. Two different domains were used in the two different methods. The effects of preheating the reactants on the flame stability and combustion characteristics were investigated experimentally on a 46 mm inner diameter quartz-walled flat flame combustor. The preheating was provided with external heaters. The flame shape and behaviour were observed with different air mass flow rates and equivalence ratios. The experimental results showed that preheating widened the flame stability limit. From the experimental results a new correlation was developed between mass flow rate, reactant temperature, air to fuel ratio and the diameter of the micro combustor. With this correlation, it is possible to determine the minimum combustor diameter required for stable flat flame combustion. Also, in order to have a stable flat flame at higher mass flow rates, the correlation enables the calculation of the required reactants temperature, and is a major contribution to the design of micro combustors. Furthermore, it was found that with the flat flame combustor, very clean, that is, almost complete combustion was achieved with both natural gas and methane as fuels. In addition, different flame holder materials were investigated for their pressure loss characteristics and usability for UMGT applications. On the other hand, the effects of preheating on the flame stability and species concentrations were investigated numerically within a 2 mm diameter micro combustor tube, over two-dimensions. The simulations were performed with both adiabatic walls and nonadiabatic walls. At high incoming flow velocities, preheating was shown to widen the flame stability limit. On the other hand, there is no advantage in preheating for low incoming flow velocities or low mass flow rates. A comparison of employing different skeletal and detailed reaction mechanisms was made. Furthermore, in the non-adiabatic case the effect of heat loss through the outer wall via…" @default.
• W2747252028 created "2017-08-31" @default.
• W2747252028 creator A5053188499 @default.
• W2747252028 date "2015-01-01" @default.
• W2747252028 modified "2023-09-27" @default.
• W2747252028 title "Investigation of the effects of preheating on the characteristics of micro combustion" @default.
• W2747252028 hasPublicationYear "2015" @default.
• W2747252028 type Work @default.
• W2747252028 sameAs 2747252028 @default.
• W2747252028 citedByCount "0" @default.
• W2747252028 crossrefType "dissertation" @default.
• W2747252028 hasAuthorship W2747252028A5053188499 @default.
• W2747252028 hasConcept C105923489 @default.
• W2747252028 hasConcept C116915560 @default.
• W2747252028 hasConcept C121332964 @default.
• W2747252028 hasConcept C127413603 @default.
• W2747252028 hasConcept C178790620 @default.
• W2747252028 hasConcept C185592680 @default.
• W2747252028 hasConcept C187320778 @default.
• W2747252028 hasConcept C192562407 @default.
• W2747252028 hasConcept C21880701 @default.
• W2747252028 hasConcept C2775913793 @default.
• W2747252028 hasConcept C57879066 @default.
• W2747252028 hasConcept C78519656 @default.
• W2747252028 hasConcept C83104080 @default.
• W2747252028 hasConceptScore W2747252028C105923489 @default.
• W2747252028 hasConceptScore W2747252028C116915560 @default.
• W2747252028 hasConceptScore W2747252028C121332964 @default.
• W2747252028 hasConceptScore W2747252028C127413603 @default.
• W2747252028 hasConceptScore W2747252028C178790620 @default.
• W2747252028 hasConceptScore W2747252028C185592680 @default.
• W2747252028 hasConceptScore W2747252028C187320778 @default.
• W2747252028 hasConceptScore W2747252028C192562407 @default.
• W2747252028 hasConceptScore W2747252028C21880701 @default.
• W2747252028 hasConceptScore W2747252028C2775913793 @default.
• W2747252028 hasConceptScore W2747252028C57879066 @default.
• W2747252028 hasConceptScore W2747252028C78519656 @default.
• W2747252028 hasConceptScore W2747252028C83104080 @default.
• W2747252028 hasLocation W27472520281 @default.
• W2747252028 hasOpenAccess W2747252028 @default.
• W2747252028 hasPrimaryLocation W27472520281 @default.
• W2747252028 hasRelatedWork W1545632508 @default.
• W2747252028 hasRelatedWork W2023308565 @default.
• W2747252028 hasRelatedWork W2091130685 @default.
• W2747252028 hasRelatedWork W2102448563 @default.
• W2747252028 hasRelatedWork W2349509207 @default.
• W2747252028 hasRelatedWork W2505645522 @default.
• W2747252028 hasRelatedWork W2567189537 @default.
• W2747252028 hasRelatedWork W2724166511 @default.
• W2747252028 hasRelatedWork W2754693847 @default.
• W2747252028 hasRelatedWork W2763675551 @default.
• W2747252028 hasRelatedWork W2795163607 @default.
• W2747252028 hasRelatedWork W2904292010 @default.
• W2747252028 hasRelatedWork W2921218117 @default.
• W2747252028 hasRelatedWork W2976616770 @default.
• W2747252028 hasRelatedWork W3120124832 @default.
• W2747252028 hasRelatedWork W3158848435 @default.
• W2747252028 hasRelatedWork W3192375068 @default.
• W2747252028 hasRelatedWork W626806678 @default.
• W2747252028 hasRelatedWork W2887702820 @default.
• W2747252028 hasRelatedWork W2937122060 @default.
• W2747252028 isParatext "false" @default.
• W2747252028 isRetracted "false" @default.
• W2747252028 magId "2747252028" @default.
• W2747252028 workType "dissertation" @default.