Process engineering design of pathological waste incinerator with an integrated combustion gases treatment unit

2007 ◽  
Vol 145 (1-2) ◽  
pp. 195-202 ◽  
Author(s):  
A.F. Shaaban
Author(s):  
W Ernst Eder

Students learning design engineering at times need a good example of procedure for novel design engineering. The systematic heuristic-strategic use of a theory to guide the design process – Engineering Design Science – and the methodical design process followed in this case study is only necessary in limited situations. The full procedure should be learned, such that the student can select appropriate parts for other applications. Creativity is usually characterized by a wide search for solutions, especially those that are innovative. The search can be helped by this systematic and methodical approach. This case example is presented to show application of the recommended method, and the expected scope of the output, with emphasis on the stages of conceptualizing. The case follows a novel design problem of a mechanism to open and close the bow thruster covers for the Caravan Stage Barge.


Author(s):  
Abubakar M. Ali ◽  
Mohd A. Abu-Hassan ◽  
Raja R.K. Ibrahim ◽  
Muhammad A. A. Zaini ◽  
Bala I. Abdulkarim ◽  
...  

Thermal plasma technique is becoming prominent in the treatment of variety of waste ranging from municipal solid waste, incinerator residue, hospital waste, electronics waste and industrial sludge. Application of the new treatment technology to petroleum sludge requires information on the nature and characteristics of the sludge that will be use to optimize the treatment system. In this investigation, petroleum sludge obtained from Petronas Melaka was characterized for its physical and chemical features. Proximate and ultimate analysis as well as determination of elemental composition were carried out. The sludge was found to contain high moisture (78.91%), low ash (5.06%), low volatiles (5.52%) and high fixed carbon (10.51%). The sludge has a TOC of 54.48% and HHV of 23.599MJ/kg. Despite the high moisture content, the higher heating value (HHV) is high when compared to literature values. The high value of HHV may be associated with the high fixed carbon, low ash content and high value of TOC. The apparent density of the sludge is slightly lower. Fourteen heavy metals are detected in significant quantities. Proper waste management that will safely dispose the sludge is required. The waste disposal technique should take into cognizant the possibility of leaching of heavy metals into ground water on one hand and the gasification of lighter ones on the other.


Author(s):  
W. Ernst Eder

Students learning design engineering at times need a good example of procedure for novel design engineering. The systematic heuristic-strategic use of a theory to guide the design process – Engineering Design Science – and the methodical design process followed in this case study is only necessary in limited situations. The full procedure should be learned, such that the studentcan select appropriate parts for other applications.This case example is presented to show application of the recommended method, and the expected scope of the output, with emphasis on the stages of conceptualizing. The case follows a novel design problem of a gangway for ship-shore transfer for the Caravan Stage Barge.


2021 ◽  
Vol 11 (23) ◽  
pp. 116-126
Author(s):  
Letícia Vasconcelos Morais Garcez ◽  
Ana Lya Moya Ferrari ◽  
Isabela Sousa Guimarães ◽  
Galdenoro Botura Jr

O presente estudo aborda questões metodológicas de projeto de design em que o usuário atua de maneira mais participativa, na etapa de teste. O objetivo dessa reflexão é apresentar uma experiência projetual de um aplicativo para smartphones que partiu de um exercício proposto em uma disciplina do Programa de Pós-Graduação em Design da Faculdade de Arquitetura, Artes e Comunicação e Design da Universidade Estadual Paulista, durante o primeiro semestre de 2019. A problemática levantada no presente estudo foi a gestão e o desperdício de alimentos em âmbito doméstico. Para o desenvolvimento do APP, utilizou-se em seu processo o Método das múltiplas convergências proposto por Barcellos (2020), que é uma adaptação e combinação ordenada entre o Design Process, Engineering Design Process, Double Diamond e Design Thinking. A metodologia direciona-se para o projeto-inovação, como uma ferramenta de avaliação e identificação de problemas e interação. Com isso, foram realizados durante o processo dois testes avaliativos diretamente com os usuários. Através dos feedbacks recebidos identificou-se algumas problemáticas e, requisitos projetuais foram alterados para atender com efetividade às diretrizes de UX. As mudanças realizadas puderam ser resolvidas antes do protótipo final do produto. Com relação a inovação do produto apresentado, (87,5%) participantes consideraram o produto muito inovador ou totalmente inovador, demonstrando boa adequação do produto proposto ao conceito e a problemática inicial do projeto. Entretanto, identifica-se que uma metodologia que apresente a etapa de criatividade, a entrega da ideia e o processo de testagem em pequenas partes, que são adicionadas e avaliadas de maneira frequente, acomodaria melhor o escopo do projeto em futuras etapas programáveis, se mostrando favorável para o aprofundamento desta pesquisa e de próximos estudos de caso.


2013 ◽  
Vol 57 (1) ◽  
pp. 86-95
Author(s):  
Mihai Lungu ◽  
Raluca Giugiulan ◽  
Antoanetta Lungu ◽  
Madalin Bunoiu ◽  
Adrian Neculae

Abstract This paper investigates the possibility to improve the filtering process of flue gas by separation of suspended nanoparticle using dielectrophoresis. The study focuses on the particles having an average radius of about 50-150 nm, that cannot be filtrated by classical techniques but have a harmful effect for environment and human health. The size distribution nanoparticles collected from the flue gas filters of a hazardous waste incinerator plant were evaluated. Based on obtained experimental data and a proposed mathematical model, the concentration distribution of nanoparticle suspended in flue gas inside a microfluidic separation device was analyzed by numerical simulations, using the finite element method. The performances of the device were described in terms of three new specific quantities related to the separation process, namely Recovery, Purity and Separation Efficiency. The simulations could provide the optimal values of control parameters for separation process, and aim to be a useful tool in designing microfluidic devices for separating nanoparticle from combustion gases.


Sign in / Sign up

Export Citation Format

Share Document