Showing papers on "Volumetric flow rate published in 2022"
TL;DR: In this paper, the influence of parameters such as spacing, EG (expanded graphite) content, battery direction, coolant flow rate and pipe diameter on the cooling performance was analyzed.
53 citations
TL;DR: In this paper , a multi-sub-inlet parallel FFP was proposed at the cathode flow-field plate (FFP) of a polymer electrolyte membrane (PEM) fuel cell to improve the current density homogeneity and overall cell performance.
46 citations
TL;DR: In this paper , the pyrolysis potential of pine needles with the aim to assess the influence of process parameters (namely temperature, heating rate and inert gas flow rate) along with their modeling and optimization through combination of response surface methodology (RSM) and artificial neural network (ANN) technique.
39 citations
TL;DR: In this article, the pyrolysis potential of pine needles with the aim to assess the influence of process parameters (namely temperature, heating rate and inert gas flow rate) along with their modeling and optimization through combination of response surface methodology (RSM) and artificial neural network (ANN) technique.
39 citations
TL;DR: In this article , the authors used the finite element method (FEM) to model the cooling of solar panels using a copper tube, and the results showed that the highest electrical efficiency (EE) with a value of 14.8% occurs at a flow rate of 2.5 lit/min for a tube diameter of 9.53 and presence of 11 loops.
36 citations
TL;DR: In this paper , an F2-type liquid cooling system with an M mode arrangement of cooling plates, which can fully adapt to 1C battery charge-discharge conditions, is proposed.
33 citations
TL;DR: In this paper , the effect of various parameters such as pH, adsorbent amount, flow rate, influent dye concentration, and adsorent bed height on adsorption performance of macroporous monolithic sponge (S100) was studied and modelled using Langmuir/Freundlich isotherms for static operations and Adam-Bohart/Thomas model in packed-bed column experiments.
29 citations
TL;DR: In this article , the effect of cutting parameters (pulse width (PW), spark current (C), pulse interval (PI), and flow rate(F)) on surface roughness (SR) and cutting rate (CR) were studied using argon-mist (mixing of pressurized argon gas and minimum amount of tap-water).
Abstract: Abstract In this research, influences of cryogenically treated Inconel 718 work material in near-dry wire-cut electrical discharge machining (WEDM) characteristics have been studied using argon-mist (mixing of pressurized argon gas and minimum amount of tap-water) and a reusable Molybdenum wire tool. The effect of cutting parameters (pulse width (PW), spark current(C), pulse interval (PI), and flow rate(F)) on surface roughness (SR) and cutting rate (CR) and using Box-Behnken response surface analysis. It was observed that CR and SR are increased by increasing PW, and C; conversely, reduced by increasing PI. The technique for order of preference by similarity to ideal solution (TOPSIS) method has been utilized to estimate the best parameters’ settings for improving both machining characteristics. The optimum CR (9.81 mm 3 min) −1 and SR (1.9 μ m) have been obtained by optimum settings of 4 Ampere spark current, PW of 20 μ s, PI of 72 μ s, and 18 ml min −1 of the flow rate of mixing water using the TOPSIS method. The best settings of cutting parameters obtained from the TOPSIS method were considered to compare the near-dry WEDM performance using cryogenically treated/untreated work materials. It was observed that CR and SR of the cryogenically treated work material are 9.17% increased and 21.58% reduced than the untreated work material due to an increase in electrical and thermal conductivities.
28 citations
TL;DR: In this article, a spray cooled rack system with a server and simulated heaters, operating with near-ambient temperature coolant of approximately 30°C, was developed for data center cooling application.
27 citations
TL;DR: In this paper , multi-criteria decision-making (MCDM) techniques are applied for predicting the automobile radiator performance under 27 different operating conditions using multiwall carbon nanotubes (MWCNTs)-based nanofluid.
26 citations
TL;DR: In this article , the influence of multi-walled carbon nanotubes (MWCNTs) and TiO2 nanoparticles (NPs) on lubricant and fluid flow within natural gas turbine meters was evaluated.
TL;DR: In this paper, the performance of MWCNT+Fe3O4/water hybrid nanofluids as the coolant of a plate heat exchanger is experimentally investigated for particle concentrations in the range from 0.05 to 0.3vol % and for coolant flow rate from 3 to 7 lit/min.
TL;DR: In this paper , a spray cooled rack system with a server and simulated heaters, operating with near-ambient temperature coolant of approximately 30 °C, was developed for data center cooling application.
TL;DR: In this article , the performance of MWCNT + Fe 3 O 4 /water hybrid nanofluids as the coolant of a plate heat exchanger is experimentally investigated for particle concentrations in the range from 0.05 to 0.3 vol % and for coolant flow rate from 3 to 7 lit/min.
01 Apr 2022
TL;DR: In this article , a novel design of liquid-cooled battery thermal management system (BTMS) based on gradient channels along the flow direction is developed and applied to a cylindrical lithium-ion battery module.
Abstract: Liquid-cooled battery thermal management system (BTMS) is significant to enhance safety and efficiency of electric vehicles. However, the temperature gradient of the coolant along the flow direction has been a barrier for thermal uniformity improvement of the battery module. In this study, a novel design of BTMS based on gradient channels along the flow direction is developed and applied to a cylindrical lithium-ion battery module. Compared with the uniform channel designs, the gradient channel design (GCD) obviously changes the basic feature of temperature's monotonic rise along the flow direction. The number of segments and the combination of segment lengths are optimized. The results show that the 2-segment gradient channel with combination of the segment lengths of 60 mm/120 mm is the optimal GCD for thermal uniformity improvement. At the inlet flow rate of 360 ml/min, the temperature difference of the optimal GCD decreases by 79.2% and 60.2% than that of the uniform large channel design and the uniform small channel design, respectively. Furthermore, the optimal GCD significantly enhances the thermal uniformity in the whole flow range, especially at low inlet flow rates, which is effective to mitigate external power consumption.
TL;DR: In this article, a combined electrical and ultrasonic sensor is used to simultaneously and non-intrusively acquire online flowing information, including the water fraction estimated by the normalized voltage from a conductance sensor, the gas fraction calculated by locating the gas-liquid interface through a pulse-wave ultrasonic sensors consisting of three transducers.
TL;DR: In this paper , the authors aimed to solve the problem of excessive dust concentration during the tunneling process of continuous mining by using an X-type 2.0-mm nozzle, and the optimal layout was eight nozzles on the upper side of the cutting arm of a continuous miner.
TL;DR: In this article , a parallel-spiral cooling plate is developed for better overall performances on BTMS. But, the performance of the plate is limited by the channel width and the channel height.
TL;DR: In this paper , the authors proposed a research analysis on high-pressure hoses and junctions during technical maintenance, based on the numerical simulations using Navier-Stokes equations and experimental measurement of fluid flow pressure inside high pressure hoses.
Abstract: Reliability and maintenance analysis of transport machines hydraulic drives, basically focused to power units: pumps, cylinders etc., without taking in to account junction elements. Therefore, this paper proposes a research analysis on high-pressure hoses and junctions during technical maintenance. Comparative analysis of fluid behavior and energy efficiency inside non-repaired and repaired high-pressure hoses is presented in this research. Theoretical and experimental research results for hydraulic processes inside high-pressure hose is based on the numerical simulations using Navier–Stokes equations and experimental measurement of fluid flow pressure inside high-pressure hoses. Research of fluid flow dynamics in the hydraulic system was made with main assumptions: system flow rate in the range from 5 to 100 l/min, diameter of the hoses and repairing fitting are 3/8". The pressure drops, power losses, flow coefficients at non-repaired and after maintenance hose was obtained as a result. Simulation results were verified by running physical experiments to measure the pressure losses.
TL;DR: In this paper , the phase-inversion method was used to fabricate nano-particles enhanced high-performance membranes for dye wastewater treatment using direct contact membrane distillation, and a regression equation was developed for estimating the variation of operating parameters to obtain permeate flux.
Abstract: The most common problem with hydrophobic membrane distillation membrane is the deposition of foreign particles on the surface. This study aimed to fabricate nano-particles enhanced high-performance membranes using the phase-inversion method and tested for dye wastewater treatment using direct contact membrane distillation. The PVDF-PEG200 (M1) & PVDF-PEG200-TiO 2 (M2) membranes are prepared, and Taguchi L9 orthogonal array is developed and examined at three different operating parameters at three levels, namely, feed temperature (45 °C, 55 °C, 65 °C), feed concentration (75 ppm, 100 ppm, 125 ppm) and flowrate (0.6 LPM, 0.7 LPM, 0.8 LPM). Using the Taguchi approach, optimum conditions (feed temperature: 65 °C, feed concentration: 75 ppm, flowrate: 0.8 LPM) are found, and optimum permeate flux is calculated at these conditions with both the membranes. A regression equation is developed for estimating the variation of operating parameters to obtain permeate flux. The effect of TiO 2 on the membrane performance is examined, and it showed that modified membrane (flux: 6.22 ± 0.12 kg/m 2 h) exhibited 21.96% more permeate flux than unmodified membrane (flux: 5.10 ± 0.10 kg/m 2 h). Both the membranes, M1 and M2, showed 100% color rejection. The effect of operating parameters (feed temperature, feed concentration, & flow rate) on permeate flux has also been investigated. Different membrane characterization analysis methods like SEM, FTIR, and XRD are performed to identify the fouling resistance of both membranes. A long run test has also been examined to determine the performance of the M2 membrane. M2 membrane showed high stability in long run test, making it suitable for industrial-scale applications. Lastly, the self-cleaning ability of the membrane is also experimentally examined. • Introduces the nanoparticle enhanced anti-fouling membrane for wastewater treatment. • A lab-scale facility for wastewater treatment was used to study the effect of nanoparticles on membrane performance. • Nanoparticle incorporated membrane shows a higher flux than the unmodified membrane. • An algorithm was created to identify the best operating parameter combination that gives a maximum flux.
TL;DR: In this paper, an unconfined step T-junction microdevice was specially designed and fabricated to systematically investigate the droplet formation mechanism, and a new flow named pseudo-squeezing flow was defined.
TL;DR: In this article, a gas diffusion electrode (GDE) accompanied by a proton-conducting solid electrolyte is used to improve the oxygen transfer efficiency for drinking water purification.
TL;DR: In this paper , a model-scale transformer oil-immersed battery thermal management system was proposed to investigate the feasibility of the cyclic transformer oil fluid on cooling the battery, and the TO fluid with a flow rate of 15 mL/min (Reynolds number = 0.59) was suggested as the optimal choice.
TL;DR: In this paper , a two-phase flow in hydrate sediment is simulated by controlling the water-gas flow rate, and the effect of effective sectional velocity on hydrate re-formation characteristics is analyzed.
TL;DR: In this article , a co-pyrolysis of microalgae Chlorella vulgaris and municipal sewage sludge (MSS) was performed in a fixed-bed reactor to explore the influence of temperature (400-600 °C), mixing ratio (MCV/MSS = 0-1), and Argon flow rate of 0.20 to 0.80 L/min.
TL;DR: In this paper , the effect of structural properties of metal foam on the performance of a proton exchange membrane fuel cell was studied and an artificial neural network was used to predict three criteria, i.e., maximum temperature, temperature uniformity index, and pressure drop, together with genetic algorithm for system optimization.
TL;DR: In this paper , the authors used a high-speed camera and turbine flowmeter to record the primary cavitation flow rate, shedding period of the cavitation cloud, and flow direction length of solutions with different pH values.
TL;DR: In this article , a gas diffusion electrode (GDE) accompanied by a proton-conducting solid electrolyte is used to improve the oxygen transfer efficiency for drinking water purification.
TL;DR: Li et al. as discussed by the authors used roll-bonded liquid cooling plate for thermal management of 100Ah lithium-ion batteries. But, the performance of the roll bond was not evaluated.
TL;DR: In this paper , the effect of various process parameters was studied for different operating conditions (mass flow rate, vacuum pressure, inlet feed temperature, dye concentration) to remove methyl orange (MO) from synthetic wastewater in the vacuum membrane distillation (VMD) process.