The aim of this research is to develop an optimisation tool to support the preliminary design of gas turbine combustors by providing a partial automation of the design process. This tool is to enable better design to be obtained faster, providing a reduction in the development costs and time to market of new engines. The first phase of this work involved the analysis of the combustor design process with the aim of identifying the critical tasks that are suitable for being automated and most importantly identifying the key parameters describing the performance of a combustor. During the second phase of this work an adequate design methodology for this problem was defined. This led to the development of a design optimisation Toolbox based on genetic algorithms, containing the tools required for it's proper integration into the combustor preliminary design environment. For the development of this Toolbox, extensive work was performed on genetic algorithms and derived techniques in order to provide the most efficient and robust optimisation method possible. The optimisation capability of the Toolbox was first validated and metered on analytical problems of known solution, where it demonstrated excellent optimisation performance especially for higher-dimensional problems. In a second step of the testing and validation process the combustor design capability of the Toolbox was demonstrated by applying it to diverse combustor design test cases. There the Toolbox demonstrated its capacity to achieve the required performance targets and to successfully optimise some key combustor parameters such as liner wall cooling flow and NOx emissions. In addition, the Toolbox demonstrated its ability to be applied to different types of engineering problems such as wing profile optimisation.

About ten years ago Volvo Cars could see that car manufactures began to introduce rear wheel arch liners made of non-woven fabrics or some kind of laminate which are mostly common today. Volvo Cars have also seen that competitors now are beginning to develop the front wheel arch liners more and more and expect a development equal to the one for the rear wheel arch liners. This is why we are set to optimize the front wheel arch liner. For development of mechanical products such as car parts, a discursive method is most suitable to follow. For example systematical concept development which we have used in our work. From a technical point of view, our results shows that the penta laminate used for the wheel arch liner on Mercedes Benz S-class is by far the best material. Unfortunately it is rather expensive which of course affects its result in a negative way when cost is taken in to consideration. When including cost, the solid plastic is actually rather economical. After assessment of the result in total we are however convinced that Volvo Cars should concentrate on further research of penta laminate and open negotiations with different suppliers regarding a material of this kind. Regarding the geometry, the tests and studies that Volvo Cars have performed earlier on splash shields clearly shows the usage of the part and further research done by our selves does not point at any problems with a splash shield integrated in the wheel arch liner. / För ungefär tio år sedan kunde Volvo Cars se att biltillverkare började introducera bakre hjulhus tillverkade av ”non-woven” fibrer eller någon form av laminat vilket idag är högst vanligt. Volvo Cars har också sett att konkurrenter nu börjar utveckla främre hjulhus mer och mer och räknar med en utveckling liknande den för bakre hjulhus. Detta är anledningen till att vi har fått uppgiften att optimera det främre hjulhuset. För utveckling av mekaniska produkter så som bildelar, är en diskursiv metod mest lämpad att följa. Till exempel systematisk konceptutveckling som vi har valt att använda i vårt arbete. Sett ur ett tekniskt perspektiv, visar våra resultat att pentalaminatet som används för hjulhusen på Mercedes Benz S-klass, är det överlägset bästa materialet. Tyvärr ar det ganska dyrt vilket naturligtvis påverkar dess resultat negativt när hänsyn tas till kostnader. När vi även ser till kostnaderna, är faktiskt den rena plasten mycket ekonomisk. Efter bedömning av det totala resultatet, är vi helt övertygade om att Volvo Cars borde koncentrera sig på fortsatta undersökningar av pentalaminat och inleda förhandlingar med olika underleverantörer angående material av denna typ. Angående geometrin, visar Volvo Cars’ sedan tidigare genomförda tester och studier att en splash shield fyller en viktig funktion och vidare undersökningar genomförda av oss själva pekar inte på några problem med en i hjulhuset integrerad splash shield.

Les noyaux de galaxies présentent souvent des raies en émission ; ils ont été classés en plusieurs catégories sur la base des rapports d'intensité de quelques raies dans le visible : galaxies de Seyfert 1 et 2, LINERs et régions HII ; ces catégories correspondent à des conditions d'excitation différentes. Mais un certain nombre d'objets ont des rapports de raies intermédiaires qui ne permettent pas de les classer sans ambiguité dans l'une ou l'autre de ces catégories. <br /><br />Nous nous sommes efforcés de clarifier la nature de ces objets à "spectre de transition". Pour ce faire, nous avons effectué des observations spectroscopiques dans le visible d'un grand nombre d'entre eux ; la plupart des observations ont été faites à l'aide du spectrographe CARELEC monté au foyer Cassegrain du télescope de 1,93~m de l'Observatoire de Haute-Provence. Ce sont les résultats de ces travaux qui constituent l'essentiel de ce manuscrit. <br /><br />Nos observations de 61 objets à "spectre de transition" ont montré qu'ils rentrent dans un schéma de classification simple. En effet il s'agit, pour la plupart, d'objets dont le spectre résulte de la présence simultanée sur la fente du spectrographe de deux régions émissives différentes (en général une region HII et un nuage du type Seyfert) - c'est ce que l'on appelle des "spectres composites". Ainsi, aucun mécanisme d'excitation "intermédiaire", ni scénario évolutif, n'est nécessaire pour expliquer leurs caractéristiques.<br /><br />Parmi les objets à spectre composite étudiés deux, particulièrement intéressants, ont attiré notre attention et sont présentés séparément : il s'agit de NGC 5252 et de KUG 1031+398. <br /><br />Notre étude de NGC 5252 est basée sur des observations effectuées avec le télescope spatial Hubble et avec le télescope de 1,93~m de l'Observatoire de Haute-Provence ; elles ont dévoilé la présence simultanée, dans cet objet, d'un LINER et d'un nuage du type Seyfert. Cela suggère que, dans cette galaxie tout au moins, l'émission du type LINER pourrait être due à une source ionisante d'origine non-stellaire. Néanmoins, les LINERs constituent une classe d'objets très mal connus : Véritables AGNs ou galaxies dont l'émission ne serait pas due à un moteur central, mais entièrement d'origine stellaire ? Le débat est toujours ouvert. <br /><br />KUG 1031+398 est une galaxie de Seyfert de type 1 à raies étroites pour laquelle une région d'émission intermédiaire entre la BLR (Broad Line Region) et la NLR (Narrow Line Region) a été signalée. Nos observations ne confirment pas la présence d'une région intermédiaire dans cette galaxie, la seule pour laquelle une détection "ferme" a été publiée. L'existence d'une telle région d'émission reste, donc, à prouver.

The relining of deteriorated gravity flow and pressure pipes with polymeric liners is now popular practice. In the water industry, health concerns and challenges associated with re-opening water services in a lined small diameter pipe have limited the use of liners. Sanexen Environmental Services Inc. in Montreal, Canada, manufactures a cured-in-place liner system which can restore water service connections after lining from within the pipe, using a remote controlled robot. The installation of the liner within cast iron water pipes can result in the formation of geometric imperfections (wrinkles) as the external diameter of the liner often exceeds the internal diameter of the host pipe. Previous studies have suggested that the wrinkles have a detrimental effect on the structural performance of the liner. In this study, experimental and analytical investigations were conducted to evaluate further the effect of the wrinkles on the circumferential (hoop) strength of the liner. The experimental investigation involved testing 33-25 mm wide ring samples of the liner with and without wrinkles, using the split-disk test method which is defined by ASTM Standard D2290. The laboratory tests were conducted to examine the effects on the response of the liner of loading rate, cyclic loading, and presence of different wrinkle configurations. A series of two-tailed Mann-Whitney statistical tests were conducted on the obtained test data. The analytical investigation examined the behavior of two of the three types of wrinkles observed in the liner using finite element models. The results from the models were evaluated using the experimental results. This study confirmed that the wrinkles were a source of weakness in the liner as failure was initiated at the wrinkle in all the test samples. It also showed that their presence may or may not result in a reduction in the ultimate hoop tensile capacity of the liner depending on wrinkle pattern. The loading rate had no significant effect on the first cracking load of the resin within the wrinkle. However, lower ultimate hoop tensile capacities were observed at very slow loading rates. Under the 50-year cyclic loading, the resin within the wrinkle was susceptible to cracking while the jackets of the wrinkle remained intact. / Thesis (Master, Civil Engineering) -- Queen's University, 2008-09-16 22:38:10.234

The effect of calcium uptake by hydration and diffusion from an adjacent calcium-rich soil on the performance of a geosynthetic clay liner (GCL) is examined for three cases. In Case 1 the GCL rested directly on a soil with a high calcium (1800 mg/l) concentration in the pore water (called “calcium rich soil” herein). Case 2 involved a GCL resting on 300 mm of soil with a low (200 - 300 mg/l) calcium concentration in the pore water (“foundation soil”) overlying the calcium rich soil. In the third (“control case”), the GCL only rested on the foundation soil. The overburden pressure was 15 kPa. The moisture content of GCL increased to 96%, 86% and 108% in the first 279 days for Cases 1, 2 and 3 respectively. Under isothermal conditions, the GCL moisture content decreased to 80% and 67% for Cases 1 and 2 respectively and increased to 113% for Case 3. After 1100 days, the hydraulic conductivity (k) of the GCL was 4×10-11 m/s for Case 3 but had increased up to about 7×10-11 m/s and 2×10-10 m/s for cases with and without the foundation layer respectively. The results are used to calibrate finite element models. A good correlation was found between k the bulk void ratio (eB) of GCL. Leakage and contaminant transport through 10 mm diameter hole in a geomembrane in a composite liner involving a GCL is examined at a stress of 100 kPa for hydraulic heads of 0.3 or 1 m. When permeated with distilled water, the interface transmissivity (θ) was about 2.3 × 10 11 m2/s. After 800 days of permeation with 0.14M NaCl there was only about 3% increase in the flow despite an order of magnitude increase in GCL permeability near the hole because θ decreased from 2.3×10-11 m2/s to 1.1×10-11 m2/s and controlled the leakage despite the increase in GCL permeability. Numerical modeling demonstrated reasonable agreement with the observed transport. / Thesis (Ph.D, Civil Engineering) -- Queen's University, 2010-09-09 12:20:42.298

With sufficient time, a high density polyethylene geomembrane will degrade and lose its engineering properties until ruptures signal the end of its service-life. This thesis examines the longevity of nine different geomembranes; five of them were of different thickness manufactured from the same resin. The degradation of properties and time to failure are investigated for geomembranes: in immersion tests; as a part of a landfill composite liner; and, exposed to the elements. The different thermal and stress histories associated with manufacturing geomembranes of different thickness are shown to affect their morphological structure; consequently, their stress crack resistance. When immersed in synthetic leachate, it was found that: (a) thicker geomembranes have a longer antioxidants depletion time but the effect of thickness decreases with temperature and is less than expected; (b) inferences of geomembrane’s longevity based on its initial properties may be misleading because a geomembrane may chemically degrade (as manifested by the change in melt index) despite the presence of a significant amount of stabilizers (as manifested by the measured high pressure oxidative induction time); and, (c) stress crack resistance may change before antioxidant depletion or chemical degradation takes place, likely, due to changes in geomembrane morphological structure with the maximum decrease being observed at 55oC. Reductions also were measured for geomembrane immersed in air and water at 55oC. The geomembrane aged in a simulated landfill liner at 85oC is shown to have service-life as little as three years with 30,000 to >2.0 million ruptures/hectare at failure. For exposed geomembranes in Alumbrera (Argentina), samples were exhumed from two mine facilities after ~16 years of exposure. The antioxidants in exposed samples depleted to residual and the stress crack resistance had dropped to as low as 70 hours. Samples were exhumed from a different exposed geomembrane in a test site in Godfrey (Canada) after six years of exposure. The antioxidants were partially depleted, with depletion to residual projected to take at least 20 years; however, despite no evidence of chemical ageing, the stress crack resistance had decreased from 330 to 190 hours, likely due to changes in the morphological structure of the geomembrane. / Thesis (Ph.D, Civil Engineering) -- Queen's University, 2014-02-28 04:59:20.834

Made available in DSpace on 2014-06-11T19:28:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2003-02-21Bitstream added on 2014-06-13T19:37:38Z : No. of bitstreams: 1 batista_aud_me_arafo.pdf: 1233122 bytes, checksum: 1fb35dc92b6cd4a34a7b7bb1cad4d1ab (MD5) / O objetivo deste estudo foi avaliar a resistência de união à tração e dureza Shore A de dois materiais reembasadores macios (Eversoft e Molloplast-B), processados juntamente com três resinas acrílicas de base de dentadura (SR Triplex, Lucitone 550 e Acron MC), polimerizadas com diferentes ciclos de polimerização. As amostras para o ensaio de tração eram divididas em dois segmentos de resina acrílica, cada um com 60 x 10 x 10 mm, e um segmento central de material reembasador macio, com 3 x 10 x 10 mm. Dez espécimes foram confeccionados para cada combinação resina acrílica/material reembasador, polimerizados por três ciclos diferentes de polimerização, como segue: SR Triplex - 2 horas a 100ºC; Lucitone 550 - 90 minutos a 73ºC, seguido de 2 horas a 100ºC, e Acron MC - energia por microondas por 10 minutos a 850W. As amostras foram testadas em uma máquina de ensaios universais MTS-810, a uma velocidade de 5 mm/min. Os valores médios de resistência de união foram calculados e expressos em megapascals (MPa), e o tipo de falha foi avaliado e anotado como coesiva, adesiva ou mista. As amostras para a avaliação da dureza Shore A consistiam de corpos-de-prova com dimensões de 36 x 7 x 6 mm preparados com os dois materiais macios de reembasamento. Dez amostras de cada material também foram polimerizadas pelos ciclos de polimerização já apresentados e a dureza foi determinada em um durômetro Shore A, de acordo com as normas D-2240 da ASTM. Os dados de ambos os testes foram analisados pela análise de variância e teste de Tukey permitindo concluir que: a) o maior valor de resistência de união foi apresentado pelo material Molloplast-B, quando processado com as resinas acrílicas Lucitone 550 (1,41 +0,15 MPa) e SR Triplex (1,40 + 0,10 MPa),... / The purpose of this study was to evaluate the tensile bond strength and Shore A hardness of two soft denture liners (Eversoft and Molloplast-B), processed against three heat-cured denture base acrylic resins (SR Triplex, Lucitone 550 and Acron MC), and polymerized by different curing cycles (water bath and microwave energy). Tensile specimens consisted of two segments of acrylic resin, each 60 x 10 x 10 mm, and a central segment of soft liner, 3 x 10 x 10 mm. Ten specimens were prepared by each liner/resin combination, and were cured by three different curing cycles, as follows: SR Triplex - boiling water for 2 hours; Lucitone 550 - 73ºC for 90 minutes, plus 2 hours at 100ºC; and Acron MC - microwave activation at 850W for 10 minutes. Specimens were tested in an MTS-810 Universal Testing Machine, at a crosshead speed of 5 mm/min. Mean bond strength was calculated and expressed in megapascals (MPa), and the type of failure was assessed and recorded as being cohesive, adhesive, or mixed. Shore A specimens consisted of 36 x 7 x 6 mm samples prepared with the two soft liners. Ten samples of each liner were polymerized by the curing cycles early presented. Hardness was determined in a Shore A durometer, according the ASTM D-2240 specification. Data from both tests were analyzed by ANOVA and Tukey test, showing that: a) the highest bond strength was presented by Molloplast-B, when processed against Lucitone 550 (1.41 +0.15 MPa) and SR Triplex (1.40 + 0.10 MPa) acrylic resins, and the lowest values were observed for Eversoft, when processed against Acron MC resin (0.38 + 0.06 MPa), b) when polymerized by microwave energy, both Molloplast-B and Eversoft presented their lowest bond strength values, when compared with the groups cured in water bath (p< .05), and c)...(Complete abstract, click electronic access below)

O presente trabalho avaliou o comportamento hidráulico e reativo de um solo argiloso compactado na energia proctor modificada, com adição de cimento Portland, para fins de aplicação em barreiras impermeáveis de fundo em aterros de resíduos sólidos industriais e de mineração, quando submetido à ação de carga estática de resíduos e em contato com lixiviado ácido enriquecido com os metais cádmio e chumbo. Um Latossolo argiloso residual da cidade de Passo Fundo - RS foi utilizado para moldagem de corpos de prova. A adição de cimento nas proporções de 0% a 2% teve como objetivo melhorar as condições reativas da barreira. Para verificação do comportamento hidráulico foram executados ensaios de condutividade hidráulica. O comportamento reativo foi avaliado por meio de ensaios de difusão, os quais foram realizados com aplicação de carga estática variável (0 kPa a 500 kPa). Soluções contaminantes contendo respectivamente 10 mg/L de cádmio e 10 mg/L de chumbo foram elaboradas com pH variando na faixa de 1 a 6. A partir de ensaio de difusão foram determinados o fator de retardamento (Rd), o coeficiente de distribuição (Kd) e o coeficiente de difusão efetiva (D*), para cada combinação de pH, % cimento e carga estática aplicada. Os resultados obtidos para a mistura compactada investigada indicaram um baixo coeficiente de condutividade hidráulica (<10-9 m/s) e valores que sofreram redução com o acréscimo de cimento. Em relação ao comportamento reativo, os valores de Rd e Kd sofreram incrementos, principalmente com o aumento do pH da solução contaminante, evidenciando o aumento da retenção dos metais. O D* não sofreu influência para os ensaios com Cd e sofreu redução devido à intensa precipitação química em solução que ocorreu devido ao acréscimo de cimento nos ensaios com Pb. A ação conjunta do aumento do pH e da adição de cimento à barreira ocasionou a maior ocorrência de reações de precipitação na barreira, do que reações de adsorção, o que não foi favorável porque possibilita que o contaminante permaneça em solução e possa ser solubilizado em presença de meio ácido. Nesse sentido, a condição que se apresentou mais favorável para o projeto de uma barreira impermeável e reativa foi de 0% de cimento para Pb e 1% de cimento para Cd, as quais desencadearam maiores os valores de Rd e Kd, considerando o contaminante na sua condição mais ácida (pH 1). Em relação à magnitude dos parâmetros Rd e Kd, Pb apresentou maiores valores do que Cd, indicando menor mobilidade. / This study evaluated the hydraulic and reactive behavior of a clayey soil compacted at modified energy proctor, with and without the addition of Portland cement, aiming at its use as containment barriers for industrial and mining solid waste disposal facilities, when subjected to the action of a static load simulating the solid waste mass and to an acid leachate enriched with metals cadmium and lead. A clayey residual Oxisol from Passo Fundo - RS was used for molding specimens. The cement addition in the proportions of 0% to 2% aimed to improve the reactive potential of barrier. Tests of hydraulic conductivity were performed to investigate the hydraulic behavior. The reactive behavior was evaluated through diffusion tests which were conducted with variable static load (0 kPa to 500 kPa). Contaminant solutions were prepared with pH varying from 1 to 6 and 10 mg/L, for both cadmium and lead. The retardation factor (Rd), the distribution coefficient (Kd) and the effective diffusion coefficient (D*) were determined for each combination of pH, % cement and static load. The results obtained showed a low hydraulic conductivity coefficient (<10-9 m/s) and values that decreased with the increasing cement content. Regarding the reactive behavior, the values of Kd and Rd increased mainly with the pH solution increment, causing the increase of metals retention. D* was not affected in the tests with Cd, but was reduced in the tests with Pb, probably by the intense chemical precipitation that occurred due to the cement addition. The combined action of increasing both the pH and the cement addition caused a higher level of precipitation reactions, which allows the contaminant to remain in solution and be solubilized in acid environment. In this sense, the condition which was most favorable for the design of an reactive and impermeable barrier was 0% cement for Pb and 1% cement for Cd, which provided the highest Rd and Kd values, considering the contaminant at its most acidic condition. Regarding the parameters Rd and Kd magnitudes, Pb showed higher values than Cd, indicating less mobility.

Made available in DSpace on 2014-06-11T19:35:02Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-03-09Bitstream added on 2014-06-13T20:06:10Z : No. of bitstreams: 1 pavan_s_dr_arafo.pdf: 435748 bytes, checksum: 5a6c6e78f1013d64f0b3a157c96c5554 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Universidade Estadual Paulista (UNESP) / O objetivo deste estudo foi avaliar a efetividade da desinfecção utilizando energia por microondas sobre os materiais reembasadores macios Mollopast-B e Ufi Gel P contaminados com os microorganismos C. albicans, S. aureus, B. subtilis e P. aeruginosa. Além disso, foi analisado o efeito desta técnica na dureza dos materiais reembasadores macios. Para avaliar a efetividade da desinfecção, foram confeccionados 200 corpos-de-prova de cada material sobre bases de resinas termopolimerizadas seguindo as instruções dos fabricantes. Os corpos-de-prova foram imersos meio de cultura TSB inoculados com os microrganismos C. albicans, S. aureus, B. subtilis e P. aeruginosa e submetidos à desinfecção em microondas pelos tempos de 3, 4, 5 e 6 minutos a potência de 650W. Alíquotas da suspensão resultante das diluições seriadas de 10-2-10 -5 foram semeadas em placas de petri e após 48 h de incubação o número de colônias foi calculado (ufc/mL). Para a avaliação do efeito da desinfecção com energia por microondas sobre a dureza dos materiais, 40 corpos-de-prova de cada reembasador macio foram submetidos aos diferentes tempos de desinfecção em microondas (3, 4, 5 e 6 min). As mediadas de dureza foram realizadas com um durômetro shore A em diferentes períodos: imediatamente após a confecção dos corpos, 24, 48 h e após 7 dias. Os dados obtidos foram submetidos à Análise de Variância e ao teste de Tukey (p<0,01). Os resultados obtidos mostraram que: a - os tempos de 4, 5 e 6 minutos de irradiação com energia por microondas esterilizou os corpos-de-prova dos materiais Molloplast B e Ufi Gel P; b - 3 minutos de irradiação promoveu a desinfecção dos corpos-de-prova do material Molloplast B contaminados com B. subtilis, S. aureus e P. aeruginosa; c - a dureza apresentou maiores alterações nos tempos de desinfecção 5 e 6 min. / The aim of this study was to evaluate the effectiveness of different times of exposure in microwave to disinfect two long-term soft lining materials (Molloplast B and Ufi Gel P) and the effects of this method on the hardness of these materials. Specimens of soft liners were made on an acrylic denture base resin and individually inoculated with C. albicans, S. aureus, B. subtilis and P. aeruginosa. After 24 hours at 37º C, 160 specimens of each material were individually submitted to microwave irradiation at 650 W for 3, 4, 5 and 6 minutes. Forty specimens were used as positive controls. Replicated specimens were plated on selective media appropriate for each microorganism. After incubation at 37ºC for 48 hours, colonies counts were quantified for each plated specimens (ufc/mL). To evaluate the effects of disinfection with microwave energy at different times of exposure on the hardness, fifty rectangular specimens (36 x 7 x 6 mm in thickness) were made for each material. Ten samples of each material were immersed in 200 mL of distilled water and disinfected in a microwave oven for 3, 4, 5 and 6 minutes at 650 W. The specimens were microwaved twice and hardness values were obtained with a Shore A durometer at different times: immediately after specimen fabrication and after 24, 48 hours and 7 days. Control specimens of each material were not disinfected and were maintained in distilled water during the role experimental period. Data were submitted to ANOVA and Tukey's test (p<0.01). The results showed that: a- sterilization was obtained at 6, 5 and 4 minutes of microwave irradiation for all specimens relined with Ufi Gel P and Molloplast B contaminated with all microorganisms; b- the specimens relined with Molloplast B contaminated with B. subtilis, S. aureus and P. aeruginosa and irradiated for 3 minutes demonstrated growth after incubation; c- the 6 minutes of microwave disinfection promoted the lower shore A hardness mean values for Molloplast.

The aim of this research is to develop an optimisation tool to support the preliminary design of gas turbine combustors by providing a partial automation of the design process. This tool is to enable better design to be obtained faster, providing a reduction in the development costs and time to market of new engines. The first phase of this work involved the analysis of the combustor design process with the aim of identifying the critical tasks that are suitable for being automated and most importantly identifying the key parameters describing the performance of a combustor. During the second phase of this work an adequate design methodology for this problem was defined. This led to the development of a design optimisation Toolbox based on genetic algorithms, containing the tools required for it's proper integration into the combustor preliminary design environment. For the development of this Toolbox, extensive work was performed on genetic algorithms and derived techniques in order to provide the most efficient and robust optimisation method possible. The optimisation capability of the Toolbox was first validated and metered on analytical problems of known solution, where it demonstrated excellent optimisation performance especially for higher-dimensional problems. In a second step of the testing and validation process the combustor design capability of the Toolbox was demonstrated by applying it to diverse combustor design test cases. There the Toolbox demonstrated its capacity to achieve the required performance targets and to successfully optimise some key combustor parameters such as liner wall cooling flow and NOx emissions. In addition, the Toolbox demonstrated its ability to be applied to different types of engineering problems such as wing profile optimisation.