Speed spreadsheet

Use a spreadsheet program to determine the location of a ground isopleth for a plume. The spreadsheet should have specific cell inputs for release rate (g/s), release height (m), spatial increment (m), wind speed (m/s), molecular weight of the released material, temperature (K), pressure (atm), and isopleth concentration (ppm). 

Fig. 4.14 Time-dependent, nondimensional, solution of Eq. 4.104, with the fluid initially at rest. The inner rod suddenly begins to rotate at a constant angular speed 2. The solution illustrated is for f /Ar = 0.25. The velocity profiles w(r) are shown at several instants in nondimensional time i. The solution was done in a spreadsheet with 16 uniformly spaced nodes and a nondimensional timestep of dt = 0.0005.

The second set-up concept from Microinnova, the Lab Experiment Toolbox , has some minor differences from the first concept. It was designed to speed up process development and reduce the time to market of chemicals or compounding products (Figure 4.25) [77]. A modular toolbox has been developed for laboratory-scale experiments. Small tube connections are used to connect various unit operation devices to each other. Process control and user interface are based on Fieldpoint and LabView or Microinnova Process Control. The integration of the sensors into the system is different to the previous concept. The Fieldpoint unit has a front panel, where sensors can be added on a plug-and-play basis. All experimental data are stored in spreadsheets, which can be transferred to common spreadsheet... 

All review sessions should be recorded using a personal computer (PC). Word processing software should be used for the report narrative write-up. A computer software spreadsheet, prepared for process safety reviews, should be used for all HAZOP and What-If reviews. It facilitates speed, ease of use and maintains exact consistency in format. 

The maximum column length Excel 95 can handle is 214 = 16384 entries for Excel 97 it is 216 = 65536 entries. In either case, a spreadsheet with several such long columns may calculate very slowly, depending on the speed of the processor used and on the amount of available memory. For our purpose little is gained by using such long columns, while much time is lost. Therefore keep the column lengths reasonably short. 

Kf4 = 0.074 M-1, and Ks() = 1.2 X 10 16 M2. Furthermore, calculate the numerical values of K3 and IQ. Computing these here, once, rather than on every row of the spreadsheet, will speed up the calculation. Whether or not this has a noticeable effect will, of course, depend on the hardware used. 

The first chapter introduces the reader to the software it can be speed-read or skipped by those already familiar with Windows- or Mac-based spreadsheets. The last chapter discusses macros, which can convert a spreadsheet into a powerful computing tool. Sandwiched between these are the four main parts of this book statistics and related methods, chemical equilibrium, instrumental methods, and mathematical analysis. These parts can be used independently, although some aspects introduced in chapters 2 and 3 are used in subsequent chapters, and the spreadsheet instructions tend to become somewhat less detailed as the text progresses. 

Equations (9.11) to (9.13) must be solved iteratively. An equation solver (or spreadsheet) provides a convenient way to do this. Eirst, a Lightnin A-320 impeller is selected. (A 45° PBT could also have been a reasonable first choice.) Choose D = 28 in. so that DIT 0.4. The height of liquid is 72 in. and the volume including the elliptical head is 1162 USG. A single impeller is selected, since the HIT is 1.0. Assume a speed determine the Re and the crossover point for transitional flow (Equation (9.15)) and the mixing time 699. The trial-and-error solution using a spreadsheet is shown in Table 9.3. 

The data were collected by Brookfield EZ-Yield software as shown in Figs. 8 and 9. The test parameters were as follows Spindle - 72, Immersion - Secondary, Zero Speed - 0.1 rpm. Wait Time - 30 s. Run Speeds - 0.05/0.5 rpm. The tests were carried out to either 105 % or 100 % torque reduction. Those tests carried out to 105 % torque reduction were trimmed down to include only those data points leading to and including the peak value of measured shear stress. The test data were exported as a Microsoft Excel spreadsheet. The data from the spreadsheet were then copied into a template developed by David Moonay to calculate the viscoelastic properties of the material. 

There is little to no preparation time involved in a UV-Vis spectroscopic measurement. The amount of time required to conduct the experiment is minimal and mostly determined by the time required for the lamp to warm up. Sampling time itself will vary depending on the speed and range of the scan but generally takes no more than a few minutes. Analysis time is similarly expedient, requiring no more than a few minutes to plot the data in a spreadsheet program. 

In the Hame box, type Gallons Per Mile. Next, in the X Values box, dick on the little spreadsheet icon, then sdect cells A3 through A14, and press the Enter key. Then, in the Y Values box, click on the litde spreadsheet icon, select cells B3 through B14 and press the Enter key. Because Gallons Per Mile values are relatively small, they will be displayed close to the Speed axis, as shown. 

Create a table that shows the windchill temperatures for the range of ambient air temperature —30°C < r, < 10 C and wind speed of 20 km/h < y< 80 km/h as shown in the accompanying spreadsheet. 

---