Envelope 2007is a chemical engineer's tool for estimating feasability of future equipment or estimating the efficiency of existing equipment. Change the way you perform "back-of-the-envelope" calculations. With this envelope, you can perform flow checks, pump specification, relief valve sizing, verify sensible heat transfer, calculate stage equilibriums, estimate physical properties, and more. Most calculations do not require elaborate process simulators to get a rough answer and can be completed in the palm of your hand. Download product and use 15 day trial period to verify results and learn about all features. Create chemical components and save their physical properties as individual files to use for heat transfer or equilibrium calculations. Also, create heat exchanger or stage files and store them on your handheld. So many features for less than the cost of most professional technical books.
Flow calculation details:
Estimate liquid pipe velocity and pressure drop
Estimate RV area and diameter
Calculate pump head, NPSHA, and discharge pressure
Ideal gas form for calculating P,V,T,n, or Z
Determine gas isentropic choked pressure, area and mass flow
Determine max. length and outlet or inlet conditions of adiabatic gas fow
Determine max. length and outlet or inlet conditions of isothermal gas flow
Determine pressure drop and final pressure of two phase flow
Use diameter and fittings forms for quick results with improved accuracy
Heat calculation details:
Specify U,A,F-flow factor, and stream properties with help on the specification form
Calculate temperatures of the inlet or exiting streams
Calculate the mass flow rate of either the hot or cold stream
Calculate A, U or F-flow factor
Calculate the heat transfer Q
Save or Open files representing a heat exchanger
Stage calculation details:
Specific the number and physical properties of components.
Specific the number of theoretical stages
Specify streams - Feed, Distillate, Reflux, Boilup, and Bottoms
Run calculations and obtain equilibrium results broken down by stream and components
Save or Open files representing a single stage or column
Physical Properties calculation details:
Calculate critical properties by bond method
Calculate critical properties and ideal gas properties by group method
Calculate liquid heat capacity by group method
Utility details:
Converter form for conversions
Temperature form for temperatures
Diameter form for pipes
Fittings form for pipe fittings
Periodic table form
Molecular Weight form
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Supported operating systems:
Windows Mobile 5.0, Windows Mobile 6 Classic, Windows Mobile 6 Professional
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