Academic literature on the topic 'Thermical range'

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Journal articles on the topic "Thermical range"

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KROKHALEV, A. V., D. R. CHERNIKOV, D. V. ROSSEIN, et al. "USE OF EXPLOSION PRESSING AND THERMICAL PROCESSING FOR THE PRODUCTION OF MATERIALS ON THE BASIS OF METASTABLE PHASE TI2FE." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 11(294) (November 2024): 57–65. https://doi.org/10.35211/1990-5297-2024-11-294-57-65.

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The basic regularities of formation of structure and phase composition of materials of Fe-Ti system at compaction by explosion of powder mixtures of titanium and iron are considered. The influence of the mechanism of plastic deformation of powder particles on the process of formation of metastable intermetallic phase Ti2Fe with increased hydrogen capacity has been found out. It is shown that an effective method of obtaining materials based on Ti2Fe is the combination of explosive pressing of a mixture of Fe and Ti powders with subsequent thermal treatment in the intercritical temperature range
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Schuster, Jean Jonathan, Cristiano Henrique Schuster, Eduardo Stüker, Áttila Leães Rodrigues, Luiz Eduardo Medeiros, and Felipe Denardin Costa. "OCORRÊNCIA DE INTERMITÊNCIA NA TRANSIÇÃO LAMINAR-TURBULENTA EM UM ESCOAMENTO DE COUETTE PLANO." Ciência e Natura 38 (July 20, 2016): 354. http://dx.doi.org/10.5902/2179460x20258.

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The transition from laminar-turbulent flow regime is important in most of the fluid mechanics application areas. In the planetary boundary layer (PBL), the flow is predominantly turbulent. However, shortly after sunset, the incidence of solar radiation ceases and the surface begins to lose heat through the emission of long-wave, yielding in a thermical stratified stable boundary layer (SBL), where turbulence can be suppressed in almost all scales. Under these conditions the production of turbulence is predominantly mechanical, and at nights with strong stratification, the turbulent activity is
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Garcia, Maria B., Carlos Díaz, and Raúl Hoffrén. "Past and present long-term refugia for biodiversity in mountains." ARPHA Conference Abstracts 8 (May 28, 2025): e156554. https://doi.org/10.3897/aca.8.e156554.

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Biodiversity loss is one of the main consequences of the two major current drivers of global change: land cover change and climate change. While climate warming is a universal driver, changes in land use are expected to be lower in protected areas. However, land cover changes could be important if protection leads to vegetation recovery following the abandonment of intensive traditional land uses. Our studies in the Ordesa y Monte Perdido National Park (central Spanish Pyrenees) aim to identify areas that have been most resistant to land cover change in the long-term past, and areas that will
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Abed, Nabeel, Imran Afgan, Andrea Cioncolini, Hector Iacovides, and Adel Nasser. "Assessment and Evaluation of the Thermal Performance of Various Working Fluids in Parabolic Trough Collectors of Solar Thermal Power Plants under Non-Uniform Heat Flux Distribution Conditions." Energies 13, no. 15 (2020): 3776. http://dx.doi.org/10.3390/en13153776.

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Changing the heat transfer fluid (HTF) is a viable approach to study the corresponding effect on the thermal and hydraulic performances of parabolic trough collectors (PTC). Three categorized-types of pure fluids are used in this study; water, Therminol® VP-1 and molten salt. The parametric comparison between pure fluids is also studied considering the effect of various inlet fluid temperatures and different Reynolds ( R e ) numbers on the thermal performance. Two low-Reynolds turbulence models are used; Launder and Sharma (LS) k-epsilon and Shear Stress Transport (SST) k-omega models. In orde
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Fernandez, Pablo, Jerome Delva, Celestin Ott, Philipp Maier, and Quentin Gallas. "Experimental Measurement Benchmark for Compressible Fluidic Unsteady Jet." Actuators 7, no. 3 (2018): 58. http://dx.doi.org/10.3390/act7030058.

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A benchmark of different measurement techniques is presented to characterize the dynamic response of a synthetic jet actuator working in compressible regime. The setup involves a piston-based synthetic jet, as well as the benchmarked measurements are hot-wire, cold-wire, Laser Doppler Anemometry, pressure transducer, and Schlieren visualization. Measured flow temperatures range from 20 °C to 150 °C, pressure ranges from 0.5 atm to 4 atm, and velocity are up to 300 m/s. The extreme values of these ranges are reached in an oscillating fashion at a frequency ranging from 30 to 100 Hz. The measure
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Tai, Le Duc, Kunal Sandip Garud, and Moo-Yeon Lee. "Experimental Study on Thermal Management of 5S7P Battery Module with Immersion Cooling Under High Charging/Discharging C-Rates." Batteries 11, no. 2 (2025): 59. https://doi.org/10.3390/batteries11020059.

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In this study, the efficiency of an immersion cooling system for controlling the temperature of 5S7P battery modules at high charge and discharge C-rates was experimentally evaluated. The study was conducted in three main stages including the evaluation of different coolant oils followed by the proposition of an optimal volume flow rate (VFR) and cooling performance evaluation under high charging/discharging C-rates. In the first stage, three coolant oils, including Therminol D-12, Pitherm 150B, and BOT 2100, were compared. The Therminol D-12 achieved superior cooling performance, with the hig
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Kalidoss, P., S. Venkatachalapathy, and S. Suresh. "Optical and Thermal Properties of Therminol 55-TiO2 Nanofluids for Solar Energy Storage." International Journal of Photoenergy 2020 (January 22, 2020): 1–9. http://dx.doi.org/10.1155/2020/7085497.

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The present experimental study focuses on the energy storage performance of Therminol 55-TiO2 nanofluids for the absorption of solar energy. Photothermal conversion efficiency is enhanced using Fresnel lens and secondary reflectors with a glass-type evacuated absorber tube. The focal length of the Fresnel lens is 150 mm, and that of the secondary reflector is 70 mm. The optical absorbance, extinction coefficient, and thermal conductivity of nanofluids at 100, 250, 350, and 500 ppm are reported. The optical path length of the energy storage medium is 1 cm. The optical performance of the nanoflu
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Sabás, Ibor, Alexandre Miró, Jaume Piera, et al. "Factors of surface thermal variation in high-mountain lakes of the Pyrenees." PLOS ONE 16, no. 8 (2021): e0254702. http://dx.doi.org/10.1371/journal.pone.0254702.

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Thermal variables are crucial drivers of biological processes in lakes and ponds. In the current context of climate change, determining which factors better constrain their variation within lake districts become of paramount importance for understanding species distribution and their conservation. In this study, we describe the regional and short-term interannual variability in surface water temperature of high mountain lakes and ponds of the Pyrenees. And, we use mixed regression models to identify key environmental factors and to infer mean and maximum summer temperature, accumulated degree-
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Ilic-Popova, Srebra. "Climatic specifications of Ohrid area of vineyards." Journal of Agricultural Sciences, Belgrade 48, no. 2 (2003): 143–48. http://dx.doi.org/10.2298/jas0302143i.

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The purpose of the research is the examination of the climatic characteristics, indexes and coefficients in the Ohrid area of vineyards. In the region under study the average annual air temperature was 11.5?C, and the vegetative air temperature had a value of 16.7?C. The annual temperature sum was 4198?C, and ranged from 4033?C to 4524?C. The vegetative sum had a value of 3570?C, and it ranged from 3326?C to 3754?C. The annual rain sum was 665 mm, and ranged from 483 mm to 927 mm. The vegetative rain sum had a value of 342 mm, and ranged from 200 mm to 541mm. On the basis of the values of effe
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Khan, Muhammad Sajid, Muhammad Abid, Khuram Pervez Amber, Hafiz Muhammad Ali, Mi Yan, and Samina Javed. "Numerical Performance Investigation of Parabolic Dish Solar-Assisted Cogeneration Plant Using Different Heat Transfer Fluids." International Journal of Photoenergy 2021 (April 28, 2021): 1–15. http://dx.doi.org/10.1155/2021/5512679.

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Parabolic dish solar collectors gain higher solar to thermal conversion efficiency due to their maximum concentration ratio. The present research focuses by integrating the parabolic dish solar collector to the steam cycle producing power and rate of process heating. Pressurized water, therminol VP1, and supercritical carbon dioxide are the examined working fluids in the parabolic dish solar collector. The aim of the current research is to observe the optimal operating conditions for each heat transfer fluid by varying inlet temperature and flow rate of the working fluid in the parabolic dish
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Conference papers on the topic "Thermical range"

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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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Bouillot, E., B. Legrand, and R. Labayrade. "A NEW BRDF MODEL FOR IN-SITU OPTICAL AND THERMICAL MATERIAL CHARACTERIZATION." In CIE 2023 Conference. International Commission on Illumination, CIE, 2023. http://dx.doi.org/10.25039/x50.2023.po088.

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The optical and thermal characterization of materials (i.e. radiometric characterization in the visible and infrared ranges) is an important way to reduce energy consumption in buildings. Characterizing the properties of building surfaces in situ prior to rehabilitation will make possible the selection of rehabilitation materials that achieve the best compromise between summer and winter comfort, while significantly reducing energy consumption. In this paper, we present a new data driven BRDF model with two parts: a diffuse part and a specular part. Most of literature BRDF models have a consta
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Miclaus, Simona, George Mihai, Paul Bechet, Ioan I. Ardelean, Jolanta Karpowicz, and Cristina Moisescu. "The thermic response of biogenic magnetite suspensions to frequencies in the (0.1-3) GHz range." In 2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med). IEEE, 2018. http://dx.doi.org/10.23919/emf-med.2018.8526078.

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Sorli, Massimo, and Laura Gastaldi. "Thermic Influence on the Dynamics of Pneumatic Servosystems." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95545.

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The gains values that can be imposed in pneumatic systems controllers are bounded to the restricted actuator bandwidth. That limitation, with low damping and stiffness, due to the air compressibility, seriously affects accuracy and repeatability when varying payload or supply pressures. For modelling and control intent a correct characterisation of the pneumatic actuator natural frequency is indispensable. The aim of this paper is to evaluate how heat exchange process affects the proper characteristics of pneumatic drivers, and in particular their hydraulic stiffness. To this purpose dynamic s
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Mwesigye, Aggrey, and Josua P. Meyer. "Heat Transfer Performance of a Parabolic Trough Receiver Using SWCNTs-Therminol®VP-1 Nanofluids." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71213.

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In this paper, the potential for improved thermal performance of a high concentration ratio parabolic trough solar energy system working with high thermal conductivity single-walled carbon nanotubes (SWCNTs) and Therminol®VP-1 nanofluid is numerically investigated. In the numerical analysis, the practical heat flux profiles expected for parabolic trough receivers were obtained using Monte-Carlo ray tracing and coupled with a computational fluid dynamics tool using user defined functions to investigate the thermal performance of the parabolic trough solar energy system. A parabolic trough syste
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Gandhre, P., V. Shrotri, and L. Muhmood. "Calcium based ternary nitrate salts for concentrating solar power applications." In 12th International Conference of Molten Slags, Fluxes and Salts (MOLTEN 2024) Proceedings. Australasian Institute of Mining and Metallurgy (AusIMM), 2024. http://dx.doi.org/10.62053/vghv1884.

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The current work deals with the measurement of some thermophysical properties of Ca(NO3)2 based ternary nitrate molten salts as HTF (heat transfer fluid) / TES (Thermal Energy Storage) material for CSP (Concentrating solar power) plants. The density and viscosity of different compositions of the ternary salt mixture containing Ca(NO3)2, NaNO3 and KNO3 close to the liquidus has been experimentally measured. An attempt has also been made to measure the melting point of the salt using the cooling curve technique as well as Differential Scanning Calorimetry (DSC). Thermogravimetric analysis has al
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Simons, Anthony, and Solomon Nunoo. "Assessment of Heat Transfer Effectiveness: Application to Shell Bitumen Plant, Takoradi, Ghana." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56407.

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At Shell Bitumen Plant, Takoradi, Beverley Thermal Fluid Heater (BTFH) generates heat energy to heat thermal fluid (Thermia B) which flows through heat exchanger and then heats bitumen which is to be maintained at temperature range of 140 °C to 160 °C before it is discharged. High rate of heat losses have been observed and in order to maintain the temperature range of bitumen at (140 °C to 160 °C), a lot of heat energy is needed to be generated which means higher fuel consumption for BTFH. Industrial fuel oil is used to fuel the BTFH. This paper assesses the existing insulation system on the p
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Branchini, Lisa, Cesar Celis, Sebastian Ruiz, Rene Aguilar, Andrea De Pascale, and Francesco Melino. "On the Design of an ORC Axial Turbine Based Expander Working As a Mechanical Driver in Gas Compressor Stations." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-01559.

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Abstract In this work, the feasibility of increasing the capacity of a natural gas compressor station by means of an Organic Rankine Cycle (ORC) is studied. In the proposed configuration, the ORC recovers natural gas compressor drivers’ wasted heat and converts it into mechanical energy. Thus, as innovative approach, the ORC generated mechanical power will be used to drag an additional gas compressor. A case study representative of a medium-size on-shore facility is taken as reference. The mechanical drivers’ arrangement is composed of four recuperated GTs of PGT5 R type (three units continuou
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Dmitriev, Serge A., Olga K. Karlina, Vsevolod L. Klimov, Micheal I. Ojovan, Galina Yu Pavlova, and Andrew Yu Yurchenko. "Retention Properties of Carbide-Corundum Ceramics Containing Carbon-14, Caesium-137, and Strontium-90." In ASME 2003 9th International Conference on Radioactive Waste Management and Environmental Remediation. ASMEDC, 2003. http://dx.doi.org/10.1115/icem2003-4567.

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The system C–Al–TiO2 is of considerable interest for the processing of irradiated reactor graphite waste with the retention of biologic hazardous carbon-14. Investigations of this system were conducted both theoretically and experimentally. Previously, the thermodynamic calculations of the phase composition of resulting end product were performed for a wide variety of components content in the system being investigated. These simulation results have been supported by XRD-analysis of produced specimens. The experimental processing of reactor graphite was conducted by the use of self-sustaining
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