Relevant bibliographies by topics / Membrane compressor

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Membrane compressor'

Author: Grafiati
Published: 28 May 2022
Last updated: 30 July 2025

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Journal articles on the topic "Membrane compressor"

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Scheepers, Fabian, Markus Stähler, Andrea Stähler, et al. "Improving the Efficiency of PEM Electrolyzers through Membrane-Specific Pressure Optimization." Energies 13, no. 3 (2020): 612. http://dx.doi.org/10.3390/en13030612.

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Hydrogen produced in a polymer electrolyte membrane (PEM) electrolyzer must be stored under high pressure. It is discussed whether the gas should be compressed in subsequent gas compressors or by the electrolyzer. While gas compressor stages can be reduced in the case of electrochemical compression, safety problems arise for thin membranes due to the undesired permeation of hydrogen across the membrane to the oxygen side, forming an explosive gas. In this study, a PEM system is modeled to evaluate the membrane-specific total system efficiency. The optimum efficiency is given depending on the e
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Zängler, Wibke, Robert Keller, and Matthias Wessling. "Production of Novel Tubular Electrochemical Hydrogen Compressor." ECS Meeting Abstracts MA2023-02, no. 38 (2023): 1850. http://dx.doi.org/10.1149/ma2023-02381850mtgabs.

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For most applications, especially transport, hydrogen needs to be compressed due to its low volumetric density. Conventionally, mechanical compressors are used for hydrogen compression, but they possess disadvantages such as high maintenance due to moving parts and a limited one-stage compression ratio. A promising technology to overcome those obstacles is electrochemical hydrogen compression, in which hydrogen is compressed in an electrochemical membrane reactor. To date, only planar electrochemical reactors for hydrogen compression have been investigated although tubular designs offer advant
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Kee, Benjamin L., David Curran, Huayang Zhu, et al. "Thermodynamic Insights for Electrochemical Hydrogen Compression with Proton-Conducting Membranes." Membranes 9, no. 7 (2019): 77. http://dx.doi.org/10.3390/membranes9070077.

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Membrane electrode assemblies (MEA) based on proton-conducting electrolyte membranes offer opportunities for the electrochemical compression of hydrogen. Mechanical hydrogen compression, which is more-mature technology, can suffer from low reliability, noise, and maintenance costs. Proton-conducting electrolyte membranes may be polymers (e.g., Nafion) or protonic-ceramics (e.g., yttrium-doped barium zirconates). Using a thermodynamics-based analysis, the paper explores technology implications for these two membrane types. The operating temperature has a dominant influence on the technology, wi
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Gong, Myungkeun, Changhyun Jin, and Youngseung Na. "Minimizing Area-Specific Resistance of Electrochemical Hydrogen Compressor under Various Operating Conditions Using Unsteady 3D Single-Channel Model." Membranes 13, no. 6 (2023): 555. http://dx.doi.org/10.3390/membranes13060555.

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Extensive research has been conducted over the past few decades on carbon-free hydrogen energy. Hydrogen, being an abundant energy source, requires high-pressure compression for storage and transportation due to its low volumetric density. Mechanical and electrochemical compression are two common methods used to compress hydrogen under high pressure. Mechanical compressors can potentially cause contamination due to the lubricating oil when compressing hydrogen, whereas electrochemical hydrogen compressors (EHCs) can produce high-purity, high-pressure hydrogen without any moving parts. A study
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Huh, Sun Chul, Han Shik Chung, Hyo Min Jeong, and Byeong Keun Choi. "ASME Code Evaluation on Stress Analysis of Snubber." Key Engineering Materials 326-328 (December 2006): 1339–42. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.1339.

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Small snubber of hydrogen compressor do duty as buffer pulsation of compressed hydrogen. Snubber is a kind of internal pressure vessel and design optimum of snubber very important problem. In this paper, we will estimation results of elastic finite element structural analysis using the commercial program such as ANSYS for comparison to the limits in ASME Code Sec. Ⅷ that are related to membrane and bending stresses. In case of membrane stress in a circular cylindrical due to internal pressure or to distributed live loads. Bending stress in the central portion of flat head due to pressure. In a
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Jeхenov M.K.,, Ismagilov F.R.,, Akhmetov S.M.,, Diarov M., та Bektay Y.K.,. "UTILIZATION OF HYDROGEN SULFIDE-CONTAINING REFINERY FLARE GASЕS". SERIES CHEMISTRY AND TECHNOLOGY 5, № 443 (2020): 64–70. http://dx.doi.org/10.32014/2020.2518-1491.81.

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Modern oil refinery flare does not provide the beneficial use of discharged hydrocarbon gases and vapors, which does not allow to reduce the volume of hydrocarbon gas burned in flare candles and reduce atmospheric pollution. To ensure a stable and trouble-free operation of the flare plant and to increase the efficiency of waste gas utilization, their preliminary compression using mechanical or jet compressors and the construction of gas treatment plants are required. A low-cost method of utilizing hydrogen sulfide-containing refinery gas is proposed, including two-stage gas compression by a li
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Sun, Jian, Bin Peng, and Bingguo Zhu. "Performance Analysis and Test Research of PEMFC Oil-Free Positive Displacement Compressor for Vehicle." Energies 14, no. 21 (2021): 7329. http://dx.doi.org/10.3390/en14217329.

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In order to study the matching characteristics of the positive displacement air compressor and the PEMFC (proton exchange membrane fuel cells), air supply subsystem, the basic operating performance parameters of the scroll and single-screw air compressors were analyzed with the focus on the oil-free double-wrap scroll compressor. According to the thermodynamic model and three-dimensional unsteady-state numerical simulation, the variation of the temperature, pressure, and velocity was obtained. Besides, under the rated operating condition of the compressor, the inlet and outlet mass flow rate o
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Klütsch, Johannes, and Stefan Pischinger. "Systematic Design of Cathode Air Supply Systems for PEM Fuel Cells." Energies 17, no. 14 (2024): 3534. http://dx.doi.org/10.3390/en17143534.

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To increase system efficiency and power density, the cathode air path of Polymer Electrolyte Membrane Fuel Cells (PEM FCs) is supercharged using electrically driven air bearing centrifugal compressors. To maximize system efficiency, the cathode air supply system must be designed to optimally fulfill the requirements of the PEM FC system while obeying the design constraints imposed by the electric compressor drive and the air bearing system. This article proposes a dedicated design process for PEM FC cathode air compressors. Using physically based component models, the impact of varying cathode
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Kim, Changhyun, Myungkeun Gong, Jaewon Lee, and Youngseung Na. "Minimizing Specific Energy Consumption of Electrochemical Hydrogen Compressor at Various Operating Conditions Using Pseudo-2D Model Simulation." Membranes 12, no. 12 (2022): 1214. http://dx.doi.org/10.3390/membranes12121214.

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With the increased usage of hydrocarbon-based fossil fuels, air pollution and global warming have accelerated. To solve this problem, renewable energy, such as hydrogen technology, has gained global attention. Hydrogen has a low volumetric density and thus requires compression technologies at high pressures to reduce storage and transportation costs. Techniques for compressing hydrogen include using mechanical and electrochemical hydrogen compressors. Mechanical compressors require higher specific energy consumption than electrochemical hydrogen compressors. Here, we used an electrochemical hy
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Liu, Mingkun, Chuang Wang, Yanpeng Li, Yuchen Li, Lixin Liu, and Ziwen Xing. "Experimental Investigation on the Effect of Water Cooling on a Dry Twin-Screw Air Compressor for Proton Exchange Membrane Fuel Cells." Applied Sciences 14, no. 6 (2024): 2537. http://dx.doi.org/10.3390/app14062537.

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Due to the lack of oil injection cooling, it is usually necessary for dry twin-screw compressors to design cooling jackets to carry away the heat generated during operation. In order to investigate to what extent a cooling jacket can improve the performance of screw compressors, this study set up an experimental platform for a dry twin-screw compressor applied in fuel cell vehicles and used water as the working liquid in the cooling jacket. Then, the performance parameters of the screw compressor under different rotating speeds, discharge pressures, and cooling water flow rates were measured.
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Dissertations / Theses on the topic "Membrane compressor"

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Олійник, Я. О. "Проєктування стаціонарної азотно-мембранної компресорної станції". Master's thesis, Сумський державний університет, 2021. https://essuir.sumdu.edu.ua/handle/123456789/86611.

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У роботі виконано розрахунок стаціонарної азотної мембранної станції, а саме підбір та розрахунок гвинтових компресорів, сепаратора та фільтра. Потім виконано розрахунок потреби в стисненому азоті по трьом гілкам, які відрізняються чистотою кінцевого продукту. В результаті аналізу використання різної кількості компресорів для потреб стиснення азоту, виконано вибір найбільш оптимального варіанту. У розділі охорони праці виконано аналіз шкідливих та небезпечних факторів при експлуатації гвинтових компресорів.<br>В работе выполнен расчет стационарной азотной мембранной станции, а именно подбор и
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Silva, Thiago Freitas da. "Contribuição das armaduras de compressão em chapas de concreto armado." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3144/tde-13062013-165847/.

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Este trabalho apresenta métodos de dimensionamento analíticos de armaduras de compressão para chapas de concreto com malha de armadura ortogonal. É feita uma revisão bibliográfica mostrando a evolução do estudo das chapas e citando os métodos analíticos de dimensionamento propostos. Estes métodos, em geral, definem como quantificar a armadura necessária para equilibrar os esforços de tração e verificar se a compressão no concreto atende ao limite de resistência. Para os casos em que a compressão na chapa é excessiva, uma das soluções possíveis seria a adoção de armaduras que funcionam comprim
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Smith, Benjamin D. "Sweeping gas membrane evaporative cooling for the enhanced performance of vapour compression refrigeration." Thesis, University of Ottawa (Canada), 2010. http://hdl.handle.net/10393/28809.

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A sweeping gas membrane evaporative (SGME) cooling system was developed to remove heat from the condenser of a vapour compression chiller. The chiller was designed for hot environments and could only achieve a coefficient of performance (COP) of 1.0 using an air-cooled condenser. In this work, the condenser was modified to have circulating water absorb heat, which was then cooled in membrane modules by evaporation across a hydrophobic membrane into an air stream. Steady-state operation of the chiller was achieved with the SGME system. Increasing either air flow or water circulation rate increa
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Пчелінцев, Віктор Олександрович, Виктор Александрович Пчелинцев, Viktor Oleksandrovych Pchelintsev та ін. "Конструкционная прочность материала мембран компрессорных машин". Thesis, Издательство СумГУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/21684.

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Рассматриваются особенности конструктивного исполнения мембранного компрессора и действие эксплуатационных факторов на долговечность и надежность мембраны из тонколистового материала из мартенситностареющей стали 09Х15Н8Ю. Показано, что с целью повышения эксплуатационной надежности мембран, необходимо использовать ленту, в структуре которой содержится определенное количество наклепанного остаточного аустенита. Это позволяет претерпевать дополнительное мартенситное превращение при действии пиковых нагрузок в локальных участках и повышает конструкционную прочность. При цитировании документа, ис
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Carneiro, Eric Brandão. "Aplicação de absorvedores tipo membrana em cavidades e filtros acústicos." Florianópolis, SC, 2008. http://repositorio.ufsc.br/xmlui/handle/123456789/91861.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológio. Programa de Pós-Graduação em Engenharia Mecânica.<br>Made available in DSpace on 2012-10-24T03:17:51Z (GMT). No. of bitstreams: 1 249540.pdf: 3030430 bytes, checksum: 34d94927d79af29cc646e0b294e0c28d (MD5)<br>Os absorvedores tipo membrana são absorvedores acústicos compostos de uma cavidade, cujo interior é parcialmente preenchido com material poroso, e por uma membrana flexível (no topo da cavidade) que vibra sob a ação de uma onda acústica. As perdas estruturais da membrana e as perdas proporcionadas pelo mat
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Rhandi, Maha. "Modélisation de procédés électrochimiques de type PEM (Proton Electrolyte Membrane) pour le développement du vecteur Hydrogène." Thesis, Université Grenoble Alpes, 2021. http://www.theses.fr/2021GRALI008.

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Actuellement, l'hydrogène est considéré comme un vecteur d'énergie prometteur. Cependant, il est préalablement produit par une électrolyse, une photo-catalyse, ou des procédés thermochimiques, biologiques. En suit une étape de stockage/conditionnement se réalisant par une compression, une liquéfaction, une physisorption ou une chimisorption. Enfin, la conversion quand elle est électrochimique et a lieu dans les piles à combustible. L'hydrogène remplit les principales caractéristiques pour atteindre les performances requises comme vecteur énergétique efficace, mais sa faible densité volumique r
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Vogel, Troy J. "Dynamic Behavior of Self-Assembled Langmuir Films Composed of Soluble Surfactants and Insoluble Amphiphiles." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1312333896.

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Chassagne, Fanette. "Étude biomécanique de l’action des bandes de compression sur le membre inférieur." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEM015/document.

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Les bandes de compression, couramment utilisées pour le traitement de l’insuffisance veineuse, appliquent une pression sur la jambe, appelée pression d’interface, qui est le principe actif du traitement. L'objectif était de mieux comprendre les mécanismes influençant la pression exercée par une bande de compression sur le membre inférieur.En lien avec des médecins et un industriel, l’approche biomécanique proposée était composée d’une part expérimentale (mesures de pression d'interface) et d'une part numérique (modélisation éléments-finis de la pose d'une bande). Deux études préliminaires, exp
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Merlini, Claudia. "Desenvolvimento de membranas eletrofiadas de poli (fluoreto de vinilideno) com polipirrol para aplicação em sensores de compressão." reponame:Repositório Institucional da UFSC, 2014. https://repositorio.ufsc.br/xmlui/handle/123456789/129114.

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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2014<br>Made available in DSpace on 2015-02-05T20:42:46Z (GMT). No. of bitstreams: 1 330207.pdf: 5594071 bytes, checksum: 8162450fab4f15c41e2eb26484183784 (MD5) Previous issue date: 2014<br>Nesta tese foram desenvolvidas membranas eletrofiadas constituídas de poli (fluoreto de vinilideno) (PVDF) e polipirrol (PPy) com propriedades eletromecânicas para utilização como materiais eletroativos em sensores de compressão. As membranas eletrof
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Rohan, Christian Pierre-Yves. "Etude biomécanique de l’action des Bas Médicaux de Compression sur les parois veineuses du membre inférieur." Thesis, Saint-Etienne, EMSE, 2013. http://www.theses.fr/2013EMSE0721/document.

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La compression élastique est la thérapeutique conservatrice la plus efficace pour la prise en charge de l'insuffisance veineuse et pour le traitement de la maladie veineuse chronique et de ses complications. Malheureusement, en pratique, les objectifs thérapeutiques ne sont pas toujours atteints ce qui souligne le manque de connaissance actuel concernant les mécanismes qui permettent aux Bas Médicaux de Compression (BMC) d'apporter les bienfaits thérapeutiques. Pour apporter des éléments de réponse, une étude numérique de l’action des BMC sur les veines a été réalisée. Dans un premier temps, u
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Book chapters on the topic "Membrane compressor"

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Sanalp Menekse, Tugba. "Extracorporeal Membrane Oxygenation (Ecmo) and Assistant Tools in Resuscitation." In Special Circumstances in Resuscitation. Nobel Tip Kitabevleri, 2024. http://dx.doi.org/10.69860/nobel.9786053358923.9.

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Extracorporeal membrane oxygenation (ECMO) provides blood flow and extracorpore al gas exchange by resting the heart and lungs in patients who develop respiratory and circulatory failure or are waiting for a heart-lung organ transplant. It is a temporary method that can provide short-term mechanical support to the heart and/or lungs in life-threatening situations. ECMO is a smaller, closed and portable version of the standard cardiopulmonary bypass device. There are 2 types of ECMO: Veno-venous (V-V) and Veno-arterial (V-A). Veno-venous (V-V) ECMO provides oxygenation in respiratory failure th
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Slomka, N., and A. Gefen. "Membrane Loads in a Compressed Skeletal Muscle Cell Computed Using a Cell-Specific Finite Element Model." In IFMBE Proceedings. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03900-3_30.

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Hung, A., and K. Mithraratne. "Investigate the Use of Membrane-Solid Coupling for Simulating Deformation of Heterogeneous Soft Tissue under Compression." In IFMBE Proceedings. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14515-5_262.

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Grimsrud, Lars, and Michael Wenske. "A Novel Hydrogen Production Unit Producing Hydrogen Under Pressure Without the Use of a Hydrogen Compressor or Asbestos Membranes." In Hydrogen Power: Theoretical and Engineering Solutions. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-015-9054-9_18.

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PINEDA-POSADAS, Jorge Alberto, Elsa ORTIZ-RODRÍGUEZ, and Lilia ORTIZ-RODRÍGUEZ. "Campos Eléctricos Pulsados." In Handbook Tecnologías Emergentes Aplicadas en Alimentos. ECORFAN, 2022. http://dx.doi.org/10.35429/h.2022.1.53.61.

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Pulsed Electric Fields in food is an emerging technology that began to be studied in the 1960s and its purpose is to preserve food, guaranteeing its nutritional value as it is a non-thermal treatment. It is based on the inactivation of microorganisms by the application of electrical pulses that cause the deformation or destruction of the cell membrane, and is due to the accumulation of charges that attract each other, causing the compression of the membrane, reducing its thickness and forming pores. Inactivation may be reversible or irreversible, depending on the intensity or duration of treat
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Hart, Andrew. "Pathophysiology." In Oxford Textbook of Plastic and Reconstructive Surgery. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780199682874.003.0044.

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Compression neuropathy is the commonest form of peripheral nerve injury and refers to the symptoms and clinicopathological findings that arise when a peripheral nerve is subjected to acute or chronic external compression or impingement of sufficient magnitude to impair its microcirculation. As aerobic glycolysis fails, membrane potential regulation is impaired, and action potential transmission fails. The differential susceptibility of the various fibre types, which subserve different functions, results in a typical progression of symptoms from impaired fine touch and proprioception, through p
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"Flux effects on cake compression in membrane filtration." In Particulate and Organic Matter Fouling of Seawater Reverse Osmosis Systems. CRC Press, 2011. http://dx.doi.org/10.1201/b11609-7.

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Porter, Alyx B. "Neoplastic Diseases." In Mayo Clinic Internal Medicine Board Review, 12th ed., edited by Christopher M. Wittich, Thomas J. Beckman, Sara L. Bonnes, et al. Oxford University PressNew York, 2019. http://dx.doi.org/10.1093/med/9780190938369.003.0060.

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Abstract Neoplastic diseases include tumors in the brain and central nervous system, primary central nervous system lymphoma, and systemic cancer. Brain metastases are the most common brain tumors. Epidural spinal cord compression is the most common cause of spinal cord dysfunction in patients with cancer and is frequently preceded by vertebral metastasis. Paraneoplastic disorders are associated with increased levels of circulating antibodies that are directed against neoplastic cells and attack membrane ion channels or intracellular proteins in neurons. Treatment of cancer with chemotherapeut
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Dharmalingam, Babu, Ramakrishna Reddy Ramireddy, Santhoshkumar Annamalai, Malinee Sriariyanun, Deepakkumar Rajagopal, and Venkata Ramana Katla. "Zero Emission Hydrogen Fuelled Fuel Cell Vehicle and Advanced Strategy on Internal Combustion Engine: A Review." In Diesel Engines and Biodiesel Engines Technologies [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.102057.

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Global energy consumption has gradually increased as a result of population growth, industrialization, economic development, and rising living standards. Furthermore, as global warming and pollution worsen, the development of renewable energy sources is becoming more essential. Hydrogen is one of the most promising clean and sustainable energy carriers because it emits only water as a byproduct without carbon emission and has the highest energy efficiency. Hydrogen can be produced from a variety of raw resources, including water and biomass. Water electrolysis is one of many hydrogen productio
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"Compression of nonlinear elastic membranes between rigid surfaces." In Shell Structures: Theory and Applications (Vol. 2). CRC Press, 2009. http://dx.doi.org/10.1201/9780203859766-18.

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Conference papers on the topic "Membrane compressor"

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Keppler, Mark A., Ines Abrahamsson, Gleb P. Tolstykh, Benjamin M. Kasukonis, Vladislav V. Yakovlev, and Joel N. Bixler. "Visualization of cellular membrane charging induced by MHz compressed trains of nanosecond pulsed electric fields." In Optical Interactions with Tissue and Cells XXXV, edited by Joel N. Bixler, Norbert Linz, and Alex J. Walsh. SPIE, 2024. https://doi.org/10.1117/12.3021425.

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Kain, Robert M., Brian Weber, and Wayne L. Adamson. "Localized and General Corrosion Resistance of Candidate Metallic Materials for RO-Membrane Cartridges." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95268.

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Abstract A series of crevice corrosion tests has been performed to determine the localized corrosion behavior of stainless steels and 70/30 CuNi in three aqueous environments associated with an advanced reverse osmosis (RO) water treatment system. These tests were performed to identify the resistance of candidate RO-membrane cartridge materials to crevice corrosion in the 2nd-pass brine and 3rd-pass (boiler-quality) permeate in the RO system. Because of its inherent resistance to general and localized corrosion in ambient temperature seawater and related brines, titanium has been identified as
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Han, Yen-Lin, and E. P. Muntz. "Investigation of Temperature Driven Gas Flows in 4 nm Channels for Applications of Micro-Scale Compressors at Above Atmospheric Pressure." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68170.

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Based on the rarefied flow phenomenon of thermal creep (or thermal transpiration), the Knudsen Compressor is an unconventional micro/meso-scale compressor or pump. Optimization studies have shown that a Knudsen Compressor operates most efficiently when its membrane’s flow channels are at the transitional flow regime, between continuum and molecular flows; simultaneously it provides a desired mass flow and pressure ratio. At higher pressures (&amp;gt; 1 atm), to maintain membrane channel Knudsen numbers in the transitional regime (Kn ∼ 1), the corresponding membrane channel size needs to be les
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Han, Yen-Lin. "Performance Model for Optically Driven Micropumps With Carbon Opacified Aerogel Membranes." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-62197.

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Aerogel, a highly porous material with less than several percent of solids, has been utilized in applications requiring high precision thermal managements due to its extremely low thermal conductivity. Combining the advantages of high porosities and low thermal conductivities, aerogels were used as thermal creep membranes in Knudsen Compressors, micro/meso-scale pumps/compressors with no moving parts. Heating one side of the thermal creep membrane to create a temperature gradient, a Knudsen Compressor is operated based on the rarefied gas phenomenon of thermal creep to create flows and to indu
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Han, Yen-Lin. "Computational Studies on the Effects of Non-Linear Temperature Functions in Thermal Creep Membranes of Radiantly Driven Knudsen Compressors." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51813.

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Employing rarefied gas phenomenon of thermal creep (also known as thermal transpiration), Knudsen Compressor is a micro/meso-scale gas compressor/pump without moving parts. Driven by a temperature difference, gas molecules moved from the cold side of the thermal creep channel, which has a size less than the molecular mean free path, to the hot side of the channel. To utilize its low thermal conductivity and nanometer range size pores, carbon opacified aerogel membranes, treated as a bundle of thermal creep channels, were used in prior experimental studies of radiantly driven Knudsen Compressor
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Young, M., Y. L. Han, E. P. Muntz, and G. Shiflett. "Characterization of a Radiantly Driven Multistage Knudsen Compressor." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41486.

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Knudsen Compressors are meso/micro scale gas compressors/pumps based on thermal transpiration or thermal creep. The design of radiantly driven Knudsen Compressors is discussed, along with a model that was developed to understand their performance. Experimental pumping performances for Knudsen Compressors with one, two, five, and fifteen stage, radiantly driven cascades are also discussed. Temperature measurements across the transpiration membranes, for various pressures of Nitrogen, were obtained and compared to those predicted by the performance model. The results agree with the model to with
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Aziz, Majid, Utsav Raj Aryal, and Ajay K. Prasad. "Computational Model for an Electrochemical Hydrogen Compressor." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-70418.

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Abstract One of the main challenges in developing the hydrogen infrastructure is the distribution and storage of hydrogen. A common method to store hydrogen is as a compressed gas. Electrochemical compression (ECC) is a promising technology that can sidestep some of the disadvantages present in conventional mechanical compressors. ECC is an externally powered device that employs an electrochemical cell containing a polymer electrolyte membrane (PEM) to compress the gas. This work presents a detailed 2D ECC model developed using COMSOL Multiphysics 5.6, that considers the important phenomenon o
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Han, Y. L., M. Young, and E. P. Muntz. "Performance of Micro/Meso-Scale Thermal Transpiration Pumps at Low Pressures." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61807.

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The Knudsen Compressor is a solid-state micro/meso-scale gas roughing pump based on the rarefied gas phenomena of thermal transpiration. Knudsen Compressors operate by imposing a temperature gradient across a high porosity, low thermal conductivity transpiration membrane, typically a silicon aerogel membrane. Previous optimization studies have concluded that significant reductions of both energy consumption and device volume per unit throughput and pressure difference for a given pressure ratio can be achieved when each stage of the cascade operates with a Knudsen number based on the mean pore
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Arsie, Ivan, Alfonso Di Domenico, Luca Pappalardo, Cesare Pianese, and Marco Sorrentino. "Steady-State Analysis and Energetic Comparison of Air Compressors for PEM Fuel Cell Systems." In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97223.

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The aim of the work is to perform a comparative study of the compression system for a polymer electrolyte membrane (PEM) fuel cell. This study wishes also to address some key-features on the suitability of different compressors with respect to the main system design issues (e.g. energy balance, system performance and control). According to the technologies currently considered as being able to meet fuel cell system requirements, sliding vane, twin-screw and centrifugal compressors have been studied. The analysis has been performed making use of a modeling approach based on both thermodynamic d
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Young, M., G. Shiflett, E. P. Muntz, and S. Vargo. "Thermal Transpiration As a Co-Located Micro-Scale Source of High Pressure Gas for MEMS Devices." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/mems-23889.

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Abstract Applications of the Knudsen Compressor, a thermal transpiration pump, as a co-located source of high-pressure gas (greater than 1 atm.) for MEMS valves, actuators, and fluid flow devices has been investigated. Relying only on existing materials and technologies, it is shown that it should be possible to construct MEMS Knudsen Compressors to provide compressed gas up to pressures of about 10 atm while making use of ambient gases as the working medium. The theoretical performance of Knudsen Compressors operating from 1 atm up to 10 atm is evaluated with a previously developed rarefied g
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Reports on the topic "Membrane compressor"

1

Kalman, Joseph, and Maryam Haddad. Wastewater-derived Ammonia for a Green Transportation Fuel. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2021.2041.

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The energy-water nexus (i.e., availability of potable water and clean energy) is among the most important problems currently facing society. Ammonia is a carbon-free fuel that has the potential to reduce the carbon footprint in combustion related vehicles. However, ammonia production processes typically have their own carbon footprint and do not necessarily come from sustainable sources. This research examines wastewater filtration processes to harvest ammonia for transportation processes. The research team studied mock wastewater solutions and was able to achieve ammonia concentrations above
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2

Kalman, Joseph, and Maryam Haddad. Wastewater-derived Ammonia for a Green Transportation Fuel. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2022.2041.

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Abstract:
The energy-water nexus (i.e., availability of potable water and clean energy) is among the most important problems currently facing society. Ammonia is a carbon-free fuel that has the potential to reduce the carbon footprint in combustion related vehicles. However, ammonia production processes typically have their own carbon footprint and do not necessarily come from sustainable sources. This research examines wastewater filtration processes to harvest ammonia for transportation processes. The research team studied mock wastewater solutions and was able to achieve ammonia concentrations above
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