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Littérature scientifique sur le sujet « Densità di energia »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Densità di energia"

Zappalorto, M., F. Berto, and P. Lazzarin. "Densità di energia di deformazione locale e resistenza a fatica di giunti saldati di geometria complessa." Frattura ed Integrità Strutturale 2, no. 3 (2008): 11–17. http://dx.doi.org/10.3221/igf-esis.03.02.

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Lazzarin, Paolo. "Comportamento a fatica dei giunti saldati in funzione della densità di energia di deformazione locale: influenza dei campi di tensione singolari e non singolari." Frattura ed Integrità Strutturale 3, no. 9 (2009): 13–26. http://dx.doi.org/10.3221/igf-esis.09.02.

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Yamali, Fakhrul Rozi, and Fadlan Fadlan. "ANALISIS ENERGI PEMADATAN TANAH DI LABORATORIUM." Jurnal Civronlit Unbari 2, no. 1 (2017): 14. http://dx.doi.org/10.33087/civronlit.v2i1.12.

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The density test for soil in the laboratory can be a mild density test (standard proctor) and a modified density test (modification proctor). Both types of compaction provide different levels of density. This paper aims to analyze the energy produced by both types of compaction. The results show that the compaction modification energy is greater than the standard compaction energy. These results are influenced by the number of layers and the difference of the mass of the pounder on both types of compactionKey words: compaction energy, standard proctor, modified proctor

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Ilhaq, Muhammad Syahgar, and Wildan Syafitri. "ANALISIS DETERMINAN INTENSITAS ENERGI DI INDONESIA." Journal of Development Economic and Social Studies 1, no. 4 (2022): 561–73. http://dx.doi.org/10.21776/jdess.2022.01.4.06.

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This study aims to analyze the factors that influence energy intensity in Indonesia. The method used is quantitative by using Vector Autoregressive (VAR) or Vector Error Correction Model (VECM) analysis to analyze the effect of economic variables on energy intensity. The data used is in the form of time series data, data obtained from the World Bank (2021), the Energy Information Administration (EIA) and the Central Bureau of Statistics (BPS). The data observed in 1981-2021 is 40 years. The results of this study are per capita income and openness trade have a negative effect both long term and

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Safrizal, Safrizal, Haimi Ardiansyah, and Dailami Dailami. "Pemetaan Potensi Pembangkit Listrik Tenaga Bayu di Perairan Indonesia Berdasarkan Data Satelit ASCAT." Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi 7, no. 2 (2021): 126. http://dx.doi.org/10.35308/jmkn.v7i2.4137.

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Kebutuhan energi listrik menjadi isu penting yang dapat mendorong daya saing Indonesia di kancah perekonomian dunia. Saat ini, Indonesia masih menggunakan energi yang bersumber dari fosil. Energi fosil adalah energi yang tidak terbarukan sehingga akan habis pada suatu masa. Kemampuan Indonesia dalam menghasilkan energi listrik terbarukan merupakan solusi dari permasalahan tersebut. Salah satu sumber energi listrik terbarukan berasal dari Pembangkit Listrik Tenaga Bayu (PLTB). Penelitian ini bertujuan memetakan sumber energi PLTB di perairan Indonesia dengan menggunakan data dari satelit ASCAT.

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Muhammad Faza Syaddad Ar-rafi and Nugroho Budi Wibowo. "Analisis Manifestasi Panas Bumi Melalu Fault Fracture Density (FFD) Di Wilayah Kamojang, Kecamatan Samarang, Kabupaten Garut." KURVATEK 10, no. 1 (2025): 73–80. https://doi.org/10.33579/krvtk.v10i1.5571.

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Terletak di Cincin Api Pasifik, Indonesia memiliki potensi besar dalam energi panas bumi yang signifikan. Kamojang yang terletak di Kecamatan Samarang ialah salah satu daerah yang menunjukkan potensi ini. Penelitian ini bertujuan untuk mengkaji keberadaan potensi geotermal di Kamojang melalui analisis kepadatan patahan menggunakan metode Fault Fracture Density (FFD). Data yang digunakan berupa pola patahan dari Model Elevasi Digital Nasional (DEMNas) yang kemudian dianalisis untuk menghitung densitas retakan dan disajikan dalam bentuk peta kontur. Nilai FFD yang dihasilkan berkisar antara -0,5

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Dewi, Ulfah Puspita, and Fillah Fithra Dieny. "HUBUNGAN ANTARA DENSITAS ENERGI DAN KUALITAS DIET DENGAN INDEKS MASSA TUBUH (IMT) PADA REMAJA." Journal of Nutrition College 2, no. 4 (2013): 447–57. http://dx.doi.org/10.14710/jnc.v2i4.3726.

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Latar Belakang : Kualitas diet rendah dikaitkan dengan konsumsi makanan berdensitas energi tinggi yang secara langsung berkontribusi dalam peningkatan asupan energi total dan berakibat pada peningkatan Indeks Massa Tubuh (IMT). Penelitian ini bertujuan untuk menganalisis hubungan antara densitas energi dan kualitas diet dengan IMT (Indek Massa Tubuh) pada remaja. Metode : Penelitian observasional dengan pendekatan cross sectional, bertempat di SMA N 9 Semarang dengan jumlah sampel 71 remaja usia 16-18 tahun yang dipilih dengan simple random sampling. Data yang dikumpulkan meliputi identitas sa

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Avihani, Rizka Dyah Ayu, and Muhammad Sulchan. "DENSITAS ENERGI MAKANAN DAN HEREDITAS SEBAGAI FAKTOR RISIKO HIPERTENSI OBESITIK PADA REMAJA AWAL." Journal of Nutrition College 2, no. 1 (2013): 69–75. http://dx.doi.org/10.14710/jnc.v2i1.2103.

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Latar belakang: Prevalensi hipertensi obesitik terus meningkat dengan cepat khususnya pada remaja. Densitas energi makanan dan hereditas merupakan beberapa faktor risiko hipertensi obesitik. Tujuan dari penelitian ini adalah untuk mengetahui besarnya risiko faktor densitas energi makanan dan hereditas terhadap kejadian hipertensi obesitik pada remaja awal. Metode: Penelitian dilakukan di SMP Negeri 3, SMP Negeri 30, SMP Kesatrian 2, dan Madrasah Al-Khoiriyah. Desain penelitian case-control dengan jumlah subyek 72 yang terdiri dari 36 kasus dan 36 kontrol. Subyek yang dipilih adalah yang memenu

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Nuriyati, Nuriyati, Purwanto Purwanto, Heryoso Setiyono, et al. "Potensi Energi Arus Laut Di Perairan Selat Sunda." Indonesian Journal of Oceanography 1, no. 1 (2019): 44–51. http://dx.doi.org/10.14710/ijoce.v1i1.6242.

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Arus Laut merupakan salah satu sumber energi terbarukan yang potensial untuk dikembangkan mengingat banyaknya pulau dan selat yang ada di Indonesia. Selat Sunda yang berada di antara Samudera Hindia dan Laut Jawa yang dipengaruhi oleh massa air dari Samudera Pasifik menjadi salah satu lokasi potensial. Tujuan dari penelitian ini adalah untuk mengetahui karakteristik arus laut beserta potensi energi arus laut yang dihasilkan. Penelitian ini menggunakan metode kuantitatif dan penentuan lokasi dengan metode sampling area. Pengolahan data dibagi menjadi tiga tahap yaitu analisa data arus dan pasan

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Hiron, Nurul, Sutisna Sutisna, and Nouval Hidayat Muchtar. "Model Integrasi PV dan Wind Turbin Sebagai Pembangkit Energi Listrik Baru Terbarukan pada Peternakan Tambak Udang di PT. MOD VANAME INDONESIA." Fuse-teknik Elektro 4, no. 1 (2024): 41–50. https://doi.org/10.52434/jft.v4i1.4034.

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Potensi energi yang ada di kawasan pesisir selatan Jawa Barat sendiri untuk radiasi matahari sebesar 5.05 kWh/m². Potensi energi angin yang ada di pesisir selatan kecepatan angin berkisar 5-8 m/s. PT. MOD VANAME INDONESIA merupakan Tambak Udang terbesar di Kecamatan Cikalong Kabupaten Tasikmalaya. PT. MOD VANAME INDONESIA memiliki luas lahan sekitar 18 hektar yang terbagi menjadi 8 blok, dimana setiap blok memiliki 8 kolam tambak udang. Akan tetapi pada saat ini yang tersedia hanya 4 blok. Berdasarkan hasil dari simulasi HOMER, untuk perencanaan sistem pembangkit listrik hybrid on grid di pant

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Plus de sources

Thèses sur le sujet "Densità di energia"

Colella, Leonardo. "Meccanismi di trasporto dell'energia in astrofisica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25410/.

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I meccanismi di trasporto di energia nell’universo sono un argomento di fondamentale importanza per ricavare più informazioni possibili riguardo i corpi celesti in cui si origina l’energia. I principali meccanismi di trasporto presenti negli interni stellari sono tre: radiazione, convezione e conduzione (quest’ultimo generalmente trascurabile). Studiando il gradiente di temperatura si potrà comprendere quale meccanismo di trasporto domina sugli altri in una determinata regione stellare. Ad esempio, si possono fare distinzioni importanti tra stelle in base alla loro massa: infatti in stelle mas

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PIANTA, NICOLÒ. "Strategies for the optimization and characterization of materials for energy storage." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/382288.

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Sin dalla sua invenzione, la batteria agli ioni di litio ha dominato il mercato dei sistemi di accumulo elettrochimico, grazie alle sue eccezionali proprietà in termini di energia e densità di potenza. Tuttavia, il fatto che questa tecnologia sia indissolubilmente legata a risorse rare e disomogenee distribuite, per lo più litio e cobalto, rende indispensabile avere delle alternative, se non sostituirla completamente almeno per diversificare il mercato e ridurre la dipendenza dai suddetti risorse rare. Due esempi di tali alternative sono la batteria agli ioni di Na e il condensatore elettrochi

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Mauro, Federica. "Cenni al modello del Big Bang, inflazione e materia oscura." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21234/.

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Lo scopo dell'elaborato è quello di fornire una trattazione generale sul modello del Big Bang, sul modello cosmologico e sulla materia oscura. La cosmologia si occupa della struttura e dell'evoluzione del cosmo, cercando di risalirne alle origini e si è cominciata ad imporre come scienza grazie alle scoperte astronomiche del secolo scorso. Partendo dal concetto di redshift, i lavori di Edwin Hubble e Georges Lemaître sulle velocità di recessione delle galassie, hanno portato a parlare di espansione dell'universo. Tra le teorie circa l'origine dell'universo si è affermata quella del Big Bang, c

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Mouafo, Zanguim Idriss. "Dimensionamento del Sistema Propulsivo Elettrico Puro di un Velivolo Cessna 172k." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18702/.

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L'industria automobilistica è in anticipo rispetto all'aviazione per quanto riguarda l’applicazione del sistema di propulsione elettrico puro. Anche se esistono similitudini tra i due settori, differenze come intervalli di temperature operative, limiti di peso e requisiti di sicurezza rendono necessario lo studio in modo separato dello spazio di progettazione del sistema di propulsione. Gli strumenti di progettazione degli aeromobili tradizionali, non sono in grado di spiegare e modellare i significativi cambiamenti inerenti agli aeromobili progettati attorno ai sistemi di propulsione elettric

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Colussi, Marco. "Massive fatigue assessment of welded megastructures by advanced methods." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3421951.

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In steel megastructures welding is a widely used and accepted joining technique. However, welds are geometrical discontinuities, resulting in severe local stress gradients, which strongly affect the fatigue strength of components. Advanced fatigue assessments are usually based on the local stress and strain state in the close neighborhood of such stress raisers. Despite this, current standards are lacking in giving a real guidance on how to perform a reliable fatigue assessment. Still, most of them do not refer to any local concept and lead to the nominal stress method. Even so, no recommendat

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Afshar, Hosseinabadi Reza. "Stress analysis of periodic notches by using the strain energy density approach." Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3423526.

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This research focuses on the stress analysis of periodic notches by using the strain energy density approach. Bolts, screws and rotary-shouldered connections, as examples of periodic notched components, play an important role in the performance of the machinery. The contents are related to two-dimensional (2D), as well as three-dimensional (3D) modeling of periodic notches both in the case of round and sharp notches. The analyses are based on the numerical modeling of periodic notches with linear elastic assumption of the material. The simple analytical expressions for the notch stress intensi

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Zappalorto, Michele. "Nocht mechanics under elastic and elastic-plastic conditions." Doctoral thesis, Università degli studi di Padova, 2009. http://hdl.handle.net/11577/3425636.

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Deliberately created or inadvertently induced, notches and defects unavoidably exist in engineering components. Then, fatigue strength assessments often need linear and nonlinear stresses and strains at the notch root or in the close neighbourhood of it. Whilst there is a large body of work on notch root stresses under tensile loading, in the previous literature there has been relatively little attention paid to torsional loading of prismatic shafts. Nevertheless, the engineering use of torque carrying shafts is extensive and they are susceptible to crack formation at notches and grooves und

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Rigon, Daniele. "Development and assessment of energy methods for structural durability." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3423171.

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Fatigue life assessment is the key task of the design of mechanical components subjected to service loads for avoiding failure occurring in the form of incipient cracks which may cause damages to the entire mechanical system or even worse to people. The nowadays industrial applications increasingly require mechanical components having complex geometry subjected to complex loading conditions. Considering the guidelines of the fatigue design of welded joints as an example, the standards report several stress-based fatigue design curves each one related to the most common welded structural deta

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Ruini, Mattia. "Modellazione di un sistema per la dissipazione delle vibrazioni generate dall'installazione delle fondazioni delle turbine eoliche." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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L’infissione nel fondale marino di pali in acciaio di grandi dimensioni costituenti la sottostruttura delle turbine eoliche provoca la nascita e la propagazione di un campo di vibrazioni inquinanti. Tali vibrazioni, le quali possono raggiungere elevate distanze, se al di sopra di particolari soglie di intensità, possono causare danni temporanei o permanenti, di natura fisiologica o comportamentale, alle forme di vita acquatiche circostanti il sito di collocamento dell’elemento strutturale. Tuttavia, diverse soluzioni sono state ideate per ridurne gli effetti nocivi: una di queste è il sistema

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Gallo, Pasquale. "Local approaches for the fatigue design of components subjected to high temperature." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424322.

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The present document summarized the aims and the results obtained by the candidate, during the Ph.D. programme. The research activity consisted in the investigation of the high temperature fatigue behaviour, considering the effect of the temperature combined with creep. After a preliminary analysis, the investigation of different notches reproducing the geometry of real components was considered a key topic in the present research activity. These geometries, indeed, are completely neglected in the past and recent literature, despite their important role played in industrial applications. Moreo

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Livres sur le sujet "Densità di energia"

Yuliani. Bertaruh keselamatan: Bahaya industri migas di kawasan padat huni. Jaringan Advokasi Tambang, 2008.

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Chapitres de livres sur le sujet "Densità di energia"

Montagnani, Giovanni Ludovico. "Development of a 3” LaBr3 SiPM-Based Detection Module for High Resolution Gamma Ray Spectroscopy and Imaging." In Special Topics in Information Technology. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62476-7_7.

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AbstractGamma radiation detection finds many applications in different fields, including astrophysics, nuclear physics and medical diagnostics. Nowadays large Lanthanum Bromide crystals coupled to Photomultiplier Tubes (PMTs) represent the state of the art for gamma detection modules, in particular for spectroscopic measurements. Nevertheless, there is an interest in substituting photomultiplier tubes with solid state photodetectors like Silicon Photomultipliers (SiPMs), owing to the latter’s significant advantages. These include insensitivity to magnetic fields, low bias voltage, compactness,

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Antoinette Ann Delgado, Alexis, Alan Humason, and Elfi Kraka. "Pancake Bonding Seen through the Eyes of Spectroscopy." In Density Functional Theory - Recent Advances, New Perspectives and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99747.

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From local mode stretching force constants and topological electron density analysis, computed at either the UM06/6-311G(d,p), UM06/SDD, or UM05-2X/6–31++G(d,p) level of theory, we elucidate on the nature/strength of the parallel π-stacking interactions (i.e. pancake bonding) of the 1,2-dithia-3,5-diazolyl dimer, 1,2-diselena-3,5-diazolyl dimer, 1,2-tellura-3,5-diazolyl dimer, phenalenyl dimer, 2,5,8-tri-methylphenalenyl dimer, and the 2,5,8-tri-t-butylphenalenyl dimer. We use local mode stretching force constants to derive an aromaticity delocalization index (AI) for the phenalenyl-based dime

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Gurung, Dinesh, Md Shafinur Murad, Nivedhan Ravi, et al. "Sulfonated PEEK Fiber Reinforced Composites for Increased Thermal and Mechanical Properties." In Proceedings of the 2023 International IEMS Conference, March 5-7, 2023. Wichita State University, 2023. http://dx.doi.org/10.62704/10057/26124.

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Polyetheretherketone (PEEK) is a special set of thermoplastic polymers that possess fascinating mechanical, chemical, and electrical properties for various industries, such as aircraft, biomedical, automotive, satellite, energy, and defense. Recently, sulfonated PEEK (SPEEK)-based fiber-reinforced composites have been designed and fabricated for the same purposes. However, manufacturing PEEK fiber composites is considerably difficult because of the inertness and high melting point of PEEK; thus, the sulfonation process is a necessary step to make the PEEK composites in many cases. About 5 wt%

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Actes de conférences sur le sujet "Densità di energia"

Paul, Titan C., A. K. M. M. Morshed, Elise B. Fox, Ann E. Visser, Nicholas J. Bridges, and Jamil A. Khan. "Natural Convection of Heat Transfer Fluid (Therminol VP-1) in Square Cavity Heated From Below." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17462.

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Heat transfer fluid (HTF) plays an important role in the efficiency and cost effectiveness of solar thermal collector. From several choices, Therminol VP-1 (eutectic mixture of diphenyl oxide and biphenyl) are successfully used as heat transfer fluid in the collector field of parabolic trough plants. This paper experimentally analyzes the buoyancy driven heat transfer performance of Therminol VP-1 in a square enclosure with uniformed heating from below and for a Rayleigh number up to 1.11×108. Thermophysical properties such as density, viscosity, and thermal conductivity of Therminol VP-1 were

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Boretti, Alberto. "Improving Efficiency and Power Density of Hydrogen Engines of Positive Ignition Single-Fuel and Compression Ignition Dual-Fuel designs." In FISITA World Congress 2021. FISITA, 2021. http://dx.doi.org/10.46720/f2020-caf-001.

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The latest advances in power density and efficiency of internal combustion engines (ICEs), both diesel direct injection (DI) compression ignition (CI), and gasoline positive ignition (PI), DI and jet ignition (JI), ICEs, are transferrable to single fuel or dual fuel hydrogen engines (H2-ICEs). H2-ICEs have the potential to deliver peak efficiency about 50%, peak power efficiency above 46%, and cycle average efficiency above 35% when fitted to hybrid powertrains. The major hurdles to achieve these performances are the development of hydrogen injection system. Dual fuel DI diesel-hydrogen CI ICE

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Yadav, Tripti, Shivangi Yadav, and Anupam Sahu. "Performance Analysis of Perovskite/CIGS Based Thin Film Solar Cell using BaSi2 as BSF Layer." In International Conference on Frontiers in Desalination, Energy, Environment and Material Sciences for Sustainable Development & Annual Congress of InDA. AIJR Publisher, 2023. http://dx.doi.org/10.21467/proceedings.161.2.

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The goal of this research is to analyse conversion efficiency (CE) of proposed copper indium gallium di-selenide (CIGS) thin film solar cell (TFSC) by incorporating perovskite along with CIGS. The performance enhancement is done by introducing a back surface field (BSF) and employing molybdenum (Mo) as a back contact. The possible effects on photovoltaic constraints of the perovskite/CIGS TFSC along with BSF have been examined by SCAPS-1D. The proposed (BaSi2/CIGS/Cs2AgBiBr6/TiO2/FTO/Mo/ Substrate) perovskite/CIGS thin film solar cell shows CE of 28.94 %. The parameters of thin film solar cell

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Wang, Yiqing, Riccardo Scarcelli, Diego Bestel, Sinan Demir, and Aleš Srna. "Multi-Dimensional Modeling of Mixture Formation in a Hydrogen-Fueled Heavy-Duty Optical Engine With Direct Injection." In ASME 2024 ICE Forward Conference. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/icef2024-140413.

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Abstract Hydrogen (H2), as a carbon-free fuel, is considered as one of the most promising solutions to reduce the carbon footprint of hard-to-decarbonize energy and transportation sectors. As such, hydrogen-fueled internal combustion engines (H2 ICEs) have recently been receiving increasing attention, particularly in applications such as on-road/off-road heavy-duty transport and combined heat and power. The direct injection (DI) of gaseous hydrogen into the combustion chamber offers great potential for achieving high power density and high engine efficiency, while mitigating the risk of backfi

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Paul, Titan C., A. K. M. M. Morshed, Dale A. McCants, and Jamil A. Khan. "Buoyancy Driven Heat Transfer Behavior of Zinc Oxide (ZnO)–Water Nanofluids." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17483.

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The systematic experiments were performed for buoyancy driven heat transfer of zinc oxide (ZnO)-water nanofluids with volume fraction 0.5%, 1%, and 2% in rectangular (50×50×75mm) cavity heated from below. In addition to determining the convective heat transfer coefficients, this study also included experimental determination of density, effective thermal conductivity, and rheological behavior of nanofluids. For all the properties and natural convection behavior De-Ionized (DI) water was used as the baseline data. The results show that density measurements agree well with predicted values by eq

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Min, Chan ki, Seung Woo Lee, and Hong-Kil Baek. "Development of Ammonia Direct Injection 4-Cylinder Spark-Ignition Engine." In WCX SAE World Congress Experience. SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2818.

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<div class="section abstract"><div class="htmlview paragraph">As the carbon neutrality to reduce greenhouse gas emissions has become a global movement, the development of power sources using carbon-free fuels is an essential task for the industry. Accordingly, many companies in various fields that need carbon reduction are striving to develop power sources and build energy value chains using carbon-free or carbon-neutral fuels such as hydrogen and E-fuel. Ammonia, which is also a carbon-free fuel, stands as an efficient energy vector delivering high energy density and flexibility i

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Hon, Kar Cherng, Chun Yang, and Seow Chay Low. "Electrokinetic Power Generation by Forward Osmosis." In ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/mnhmt2012-75008.

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In this paper, an innovative direct power generation technique from salinity gradient is proposed and demonstrated. The basis of this novel method encompasses forward osmosis (FO) and electrokinetic (EK) principles. Tapping the concentration difference between seawater and river fresh water, forward osmosis (FO) is utilized to allow for spontaneously transporting water across a semi-permeable membrane. The flow of water is then directed towards array of microchannels in the form of porous medium where power is produced from the electrokinetical streaming potential. Experimentally, NaCl solutio

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Pasini, Gianluca, Stefano Frigo, Marco Antonelli, and Maria Berardi. "Numerical Investigation on LNG Injection in a SI-ICE." In ASME 2018 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icef2018-9532.

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Since the beginning of this century, Liquefied Natural Gas (LNG) has been attracting more and more attention as a cleaner energy alternative to other fossil fuels, mainly due to the possibility to transport it over longer distances than natural gas in pipelines and lower environmental impact than other liquid fuels. It is expected that this trend in the use of LNG will lead to steady increases in demand over the next few decades. At present, in the automotive sector, natural gas is employed as fuel in spark-ignited (SI) engines in the gas phase (CNG) adopting port-fuel injection system (PFI) i

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Sciacovelli, Adriano, Vittorio Verda, Cristina Amelio, Carlo Repetto, and Gustavo Diaz. "Performance Improvement of a Circular MCFC Through Optimal Design of the Fluid Distribution System." In ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology collocated with ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/fuelcell2011-54436.

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In this paper, the prototype of a circular Molten Carbonate Fuel Cell (MCFC) built in the laboratories of FN SpA Nuove Tecnologie e Servizi Avanzati is analyzed using a tridimensional computational fluid dynamic (CFD) model. The prototype is the result of FN and Politecnico di Torino activities developed for the Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) within the framework of Ministry of Economic Development, MSE-ENEA. This model considers heat, mass and current transfer as well as chemical and electrochemical reactions. The results show

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Valasara, Vira, Sri Rezeki, and Syahrul Khairi. "Pengaruh Temperatur Kalsinasi Optimum terhadap Pembentukan Kalsium Oksida dari Cangkang Telur Bebek Sebagai Katalis pada Sintesis Minyak Kelapa Menjadi Biodiesel." In Seminar Nasional Penerapan Ilmu Pengetahuan dan Teknologi : kampus merdeka meningkatkan kecerdasan sumberdaya manusia melalui interdispliner ilmu pengetahuan dan teknologi : Pontianak, 24 Agustus 2021. Untan Press, 2021. http://dx.doi.org/10.26418/pipt.2021.24.

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Cadangan minyak bumi dunia semakin lama semakin berkurang, sehingga perlu energi alternatif untuk menggantikan posisi minyak bumi, di antaranya adalah penggunaan biodiesel. Biodiesel dapat diproduksi dari berbagai macam minyak nabati, salah satunya minyak kelapa. Pembuatan biodiesel memerlukan katalis, katalis yang banyak dikembangkan saat ini adalah katalis heterogen CaO. CaO dapat diperoleh dari CaCO3 yang dikalsinasi. Salah satu sumber yang mengandung CaCO3 yang tinggi adalah cangkang telur bebek. Penelitian ini bertujuan untuk mengetahui pengaruh variasi suhu kalisnasi cangkang telur bebek

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Rapports d'organisations sur le sujet "Densità di energia"

Tadi, Massimo. New Lynn – Auckland IMM Case Study. Unitec ePress, 2017. http://dx.doi.org/10.34074/book.062.

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Integrated Modification Methodology (IMM) has already been applied in established metropolitan contexts, such as Porto Maravilha in Rio de Janeiro, the neighbourhood of Shahrak-e Golestan in Tehran, and Block 39 in New Belgrade. When Unitec Institute of Technology’s Associate Professor of Urban Design Dushko Bogunovich came up with the idea of a comparative analysis of two sprawling metropolitan contexts – Auckland and Milan – he and Massimo Tadi, Director of the IMMdesignlab in Milan and Associate Professor at the School of Architectural Engineering at the Politecnico di Milano, decided to ap

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Miller, Michael E. A Density Functional Theory (DFT) Study of the Proposed Insensitive High Energy Density Material (IHEDM) 2-(Nitroaminomethylene)-4,5-Dinitrocyclopenta-3,5-Di-Nitroamine (NDDN). Defense Technical Information Center, 2011. http://dx.doi.org/10.21236/ada551809.

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