Check out Koenigsegg's super lightweight electric motor
That's the chunkier setup you see above (apparently the drinks cans are there for scale). It essentially combines two Quark motors with one of Koenigsegg's excellently-named David inverters ...
Stirring and Stirred-Tank Reactors
Abstract. Stirred-tank reactors are used throughout the process industry. They are not only applied in the chemical industry, but also in newer industrial sectors, such as biologics, pharmaceuticals, nanotechnology, and regenerative medicine. Certain features have not changed for many years, but the understanding of the physical processes ...
Process Data Sheet – Agitated Reactor
Agitated Reactors are most widely used reactors in our Chemical Process Industries. We can operate this reactor in batch, semi-batch and continuous mode. When we use this reactor in continuous mode is also know as …
CHARACTERIZING IMPELLER PERFORMANCE IN …
Vessel diameter Operating volume. 0.1 m (4 inches) 1 litre (0.25 gall) 1.8 m (72 inches) 8000 litres (2000 gall) 6.0 m (240 inches) 300000 litres (80000 gall) 18 m (720 inches) 4 million litres (1 million gall) 36 m (1400 inches) 10 million litres (3 million gall)
Engineering characterization of the single-use Xcellerex …
at 37°C. The motor current was recorded from the servo drive of the XDR‑500 system and converted into torque using the torque constant of 2.04 (± 10%) Nm/A (Kollmorgen, Radford, VA, USA). To compensate for the power loss due to friction in the motor and impeller assembly, power was measured during zero load conditions for each tested
(PDF) Optimization of PID control parameters with
The results of this study can provide a model of a continuous stirred tank heater temperature control system with a water room temperature range up to 45ºC using the parameters PI Kp = 83.2 Ti ...
Investigation of the Role of Impeller Structural …
Liquid–liquid mixings in stirred tanks are commonly found in many industries. In this study, we performed computational fluid dynamics (CFD) modeling and simulation to investigate the liquid–liquid mixing behavior. …
Q3. An adiabatic stirred tank is used to heat 100 kg
Transcribed image text: Q3. An adiabatic stirred tank is used to heat 100 kg of a 45 weight percent glycol solution in water (mass heat capacity 3.54 J/g °C). An electrical coil delivers 2.5 kJ/s of power to the tank 88% of the energy delivered by the coil goes into heating the vessel contents. The shaft work of the stirrer is 500 W.
Mixing: Impeller Performance in Stirred Tanks
Impellers in stirred tanks are machines that move fluid; essentially they are pumps. Like pumps, their efficiency can be defined and calculated. The hydraulic efficiency of a …
Measuring Torque on the Impeller Shaft of a Stirred Tank
But the easiest way might be to use a DC electric motor to drive the stirrer, vary the voltage to adjust the RPM, then monitor the motor current which is a very good proxy for motor torque. Likes russ_watters. Sep 15, 2018 #4 jim hardy. ... In the context of a stirred tank, torque is important to measure because it can affect the mixing ...
Measurement of Power Consumption in Stirred Vessels—A …
Clearly, the losses (in bearings, seals and the motor itself) can be higher than that drawn to the fluid. A reliable measurement Figure 1. Power drawn measurements by electrical …
A 20 L electrochemical continuous stirred-tank reactor for …
To avoid heating energy loss, an insulating jacket should be added to the reactor tank, and more efficient heating equipment rather than the water bath is required. Moreover, a more efficient electric motor and mixing impeller should be applied. Finally, the current density needs to be further enhanced and the O 2 crossover problem needs …
[How To] Select a Motor Capacity for Agitator
And coming to Motor capacity, we have to consider approx. 30% excess to the required capacity, so the motor capacity will be 8.6 * 1.3 = 11.18 KW ~11.5 KW = 15.4 HP. ~16 HP. Usually a motor will have an RPM of ~1475, so to match the anchor RPM to 48, Gear box should have an ratio of 1475 / 48 = 30.75.
Energy efficiency of different impellers in stirred tank …
Electric energy consumption is an important parameter for the stirred tank design. It is defined as the amount of the electric energy necessary (in a period of time) to generate the fluid circulation within a tank by means of mechanical agitation [40]. The costs associated with power drawn contribute significantly to the overall operation costs ...
Measurement of Power Consumption in Stirred Vessels—A Review
There are several methods to measure this parameter in stirred tank reactors, as detailed by Ascanio et al. 18 For pilot-plant stirred reactors, the most reliable method measures the shaft torque ...
Intensification of chaotic mixing in a stirred tank with a …
The time-varying motion of the impeller can be achieved through a chaotic motor, which is controlled by an electric programmable logic controller (PLC). ... laminar mixing process. The mixing performances of non-Newtonian carboxyl methyl cellulose (CMC) solution in a stirred tank with a rigid impeller, a rigid impeller coupled with a …
Power Input Measurements in Stirred Bioreactors at …
(1) In order to account for losses occurring in the agitation (in bearings, seals and the motor itself), the effective torque (T eff) should be determined as the …
Continuous Stirred Tank Reactors (CSTR)
Nano-Mag Technologies is a manufacturer of Continuous Stirred Tank Reactor (CSTR, or stirred tank reactor STR) with design pressure range from full vacuum to 350 bar (5000 psi) and temperature range up to 600°C. ... Motor Rating (HP) 0.25: 0.5: 1: 1.5: Motor Type Standard: Flame proof AC motor for Group IIA & IIB gases: ... Electric Ceramic ...
Impeller shape-optimization of stirred-tank reactor: CFD …
In the DC electric motors, input power is not equal the output power since there is different power loss due to frictional losses, electrical power losses, etc. ... The weight factors or w i can be satisfied as: (9b) ... The stirred-tank reactor equipped with 6-blade Rushton turbine was investigated experimentally in the different operating ...
Chapter 11 The Stirred Tank: Mixing Time and Power …
11 The Stirred Tank: Mixing Time and Power Requirement 121. 11.1 Applying the Correlations ... With the small impeller it took a 100 W motor 13 min to obtainthedesired degreeofmixing.Supposeweuse alarger impeller (d¼3m). What mixing time and power would be needed? 2. Fructose is very useful in today's kitchens; however, it is a …
I. Stirred Tank Reactor
FIGURE 4: Power number as a function of Reynolds number for baffled and unbaffled stirred tanks. fully baffled unbaffled Np 100 10 0 0.1 1 10 100 1,000 10,000 105 106 Re Np Critical Reynolds number for transition from laminar to turbulent mixing is ill defined and lies in the range 10 < Rec < 100 Power at start up ≈ 15 power at steady state ...
Analysis of immiscible liquid-liquid mixing in stirred tanks …
DOI: 10.1016/j.ces.2020.115898 Corpus ID: 224984471; Analysis of immiscible liquid-liquid mixing in stirred tanks by Electrical Resistance Tomography @article{Maluta2020AnalysisOI, title={Analysis of immiscible liquid-liquid mixing in stirred tanks by Electrical Resistance Tomography}, author={Francesco Maluta and …
Intensification of chaotic mixing in a stirred tank with a …
Section snippets Experimental apparatus. A schematic of the experimental apparatus is shown in Fig. 1. Experiments were carried out in a transparent cylindrical tank of diameter (T) 0.48 m.The flat-bottomed tank was fitted with four equally spaced flat baffles, each with a width equal to T/10.A rigid impeller (Fig. 2a), a rigid-flexible impeller …
Measurement of Power Consumption in Stirred Vessels—A …
This paper reviews the literature of the last 35 years on the methods for measuring power draw in stirred tanks and fermentors (during actual cultures) of sizes …
Measurement of Power Consumption in Stirred Vessels—A …
There are several methods to measure this parameter in stirred tank reactors, as detailed by Ascanio et al. 18 For pilot-plant stirred reactors, the most …
Assessment of air entrainment in stirred tanks using
In addition, for this system, the motor closer to the tank causes relatively greater influences on the measurement results. In consequence, both the motor and the stirred tank are placed in the grounded shielding boxes. 4. Results and discussion4.1. The changes of capacitance in an empty tank
40-ton Electric Drive Main Battle Tank (E.D.M.B.T.)
As part of the evaluation of trends in future vehicles, a commission looked into the potential for electric drive systems for a 40-ton (36.3 tonne) (tank) and 19.5-ton (17.7 tonne) (/IFV) platform. The US Army's Tank Automotive Command (TACOM) issued a contract to General Dynamics Land Systems for this project – to evaluate …
Enhancement of solid-liquid mixing state quality in a …
The intermittent jet phenomenon which has large vortex core entrainment force and strong penetrating power in continuous stirred tank reactor was studied for the first time by Houcine et al. (1999) (Houcine et al., 1999). The influence of different impulse frequencies on the mixing performance was studied by Kong et al. (2019) (Kong et al., …
Fundamentals of continuous stirred tank reactors …
A CSTR is just one type of continuous chemical processing equipment, and just one type of reactor. Even so, they see extensive use in the chemical processing industry due to their simplicity and versatility. …