Maximum injection rate

Modylen 2-5134) - Typical thermoplastic injection molding machines are suitable. Melt temperature 220-230°C Mold temperature 50-80°C Injection pressure 650 bar Injection rate maximum Ram pressure 100-350 bar Extrusion... 

The test commences with a heat extraction of about 1 kW (duration 45 h), subsequently this extraction rate was increased to 1.35 kW. After a total time of 60 h, a short recovery period (10 h) was allowed. During this period the heat pump was reversed and started storing heat in the buffer tank. Subsequently a heat injection of about 1 kW was started, after which there is a transient power injection with a maximum power injection rate of about 3.4 kW. The experiment settings have to be adjusted manually, therefore some control problems are obvious in the graph. For instance, when changing to... 

On-site aquifer testing has also been performed in several phases. Typically, pumping tests are performed on newly installed injection and recovery wells to collect data used to determine optimum pumping or maximum injection rates. Monitoring wells are also tested to determine the location or feasibility of injection and recovery wells. 

Fig. 7. Oxidation conversion of n-C8 with t.BHP to ketones and alcohols at 298 K and 0.1 MPa. With FePcY 0.5 g catalyst (lFePc/77 supercages), 200 mmol n-C8, 100ml acetone and a t.BHP injection rate of 21.9 mmol.h is used. With FePcVPI-5 0.1 g catalyst (0.021 per unit cell), 50 mmol n-C8, 50ml acetone and a t.BHP injection rate of 8.76 mmol.h 1 is used. The straight line represents the maximum possible conversion when only ketones are formed and t.BHP conversion is complete.

Figure 13.13 shows such a distribution measured by Menges and Wiibken (30) for amorphous PS. They measured the shrinkage of microtomed molded samples at elevated temperatures. Figure 13.13(a) shows the longitudinal (flow direction) orientation distribution at two injection rates. The characteristic features of the orientation distribution are a maximum orientation at the wall that vanishes at the center with a local maximum near the wall. In Fig. 13.13(b), the longitudinal orientation at the wall and secondary maximum orientation are in close proximity, and the transverse orientation drops continuously from a maximum value at the surface. 

As gas mixes with oil in the tubing, the column lightens and the well starts producing. The gas injection rate does not fulfill the welFs need. Therefore, the pressure in the casing drops and production reaches a maximum. 

It should be noted from Figure 9.12 that the magnetic permeability increases as the effective aspect ratio increases. Conductive thermoplastics, which contain carbon fiber, have a maximum injection rate above which electric conductivity will not increase. These composites also depend on fiber orientation which increases the... 

The injection velocity should mainly depend on reservoir injectivity and allowable injection pressure. Some simulation results, however, show that higher injection velocity increased the ultimate recovery factor a little bit (maximum 2%). A recommended injection velocity range in Daqing is 0.1 to 0.16 PV per year (Niu et al., 2006). However, injection rates several times higher have been seen in practical cases in the Chinese literature. 

Parameters v and o- in eqns (2.7) represent the substrate injection rate and the maximum rate of the enzyme reaction, divided by constant... 

The oscillations of fig. 2.14 correspond to a periodic variation of the enzyme activity, which passes from less than 1% to some 75% of the maximum reaction rate (fig. 2.15). This range is comparable to that observed in the course of glycolytic oscillations in yeast for the periodic variation in PFK activity (Hess et al, 1969). As indicated in table 2.2, the mean value and the maximum reached by the enzyme activity during oscillations depend on the value of the substrate injection rate. 

Effect of the substrate injection rate and of the maximum enzyme activity... 

Fig. 2.16. Variation of the period (T) and amplitude of the oscillations as a function of the substrate injection rate. The bifurcation diagram shows the envelope of the product oscillations as a function of the substrate injection rate v sohd lines denote the stable steady state (yo) or the maximum (%j) and minimum (y ) of the product in the course of limit cycle oscillations the deushed line denotes the unstable steady state. The curves have been established by numerical integration of eqns (2.7), function

Fig. 2.21. Dependence of limit cycle oscillations and product nullcline on the number n of subunits of the allosteric enzyme. The dashed curves are obtained by numerical integration of eqns (2.7) for the values n = 3, 4,6 and 8. In each case, the dashed curve represents the limit cycle of maximum amplitude determined as a function of the substrate injection rate (Venieratos Goldbeter, 1979).

For each value of n, the minimum and maximum values of the normalized substrate injection rate v bounding the instability domain are indicated, as well as the extent of this domain measured by the ratio of these quantities. Venieratos Goldbeter, 1979. 

In the above equations, a, /3 and y denote the (dimensionless) normalized concentrations of S, Pj and P2, respectively and L2 are the allosteric constants of enzymes Ej and Ej, while o-j and 02 are the normalized maximum rates (in s ) of these two enzymes v and (both in s ) denote the substrate injection rate and the apparent first-order rate constant for the removal of the final product in a reaction catalysed by a Michaelian enzyme far from saturation by its substrate. 

Fig. 4.9 Increasing the injection rate (c has the fastest rate) or volume (c has the greatest volume) results in a greater maximum enhancement...

Further information about the operation of the plant has been provided by Gammon (7). Since the major shutdown in September 1998, the average monthly injection rates for secondary materials and dross have varied largely because of fiimace problems. However, as much as 1360 t/m of secondary materials and 1630 t/m of pump sump ( ss have been injected. At the maximum rate, about 7% of the zinc in the fiimace charge has been injected. 

Injection units are specified by shot size, maximum injection pressure, plasticating capacity and recovery rate, maximum injection velocity, and other less important factors. The shot size is the maximum weight or volume of plastic that can be injected in one shot. Injection... 

The makeup water at 100 F will be available from three pumps with a total available flow of approximately 3000 gallons per minute (2,38 x 10 Ib/lir). is water passes through a preheater before entering the primary loop. The maximum Injection rate, not preheated, would result In lowering the reactor Inlet temperature 10 F. This produces a reactivity variation of approximately +1.2 mk for fuel with an average exposure of 700 MWB/T. Such a nominal reactivity Increase would present no safety problem. 

LPSI system pressure - means the water pressure delivered by the LPSI system to the reactor. Normally, LPSI head pressure at the rated LPSI pump flowrate should be entered. For other systems of low pressure safety injection, the maximum attainable pressure of water being injected by LPSI to the core should be entered. The appropriate value should be expressed in MPa. 

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