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Online Calculators
Efunda
This online site provides some calculators that may be of interest to chemical engineers.  Calculators include unit conversions, gage calculator, hardness approximation, Reynolds number, pipe friction, and venturi flowmeter.
Industrial Filtration Calculators
Need help selecting equipment for an industrial filtration?  How about some help with a sedimentation velocity calculation?  This site contains online calculators to help with these tasks.  Also included is a tool to estimate the specific resistance to filtration from a particle size distribution provided by the user.
Equipment Costing
Online equipment cost estimating from Matches.  This Java powered online calculator provides cost estimates for a wide variety of process equipment.  The correlations are not discussed, so judging the accuracy is difficult.  Costs are expressed in year 2000 U.S. dollars.
LMNO Engineering
Online calculators including hydraulics of open channels, tank discharges, pipe friction factors and head losses, and groundwater calculations.  Some calculations are free while other require a $20 registration fee.
McCabe-Thiele Calculator
Calculate the number of theoretical trays needed for your distillation column via the McCabe-Thiele method.
FreeCalc.com
A ton of online calculator covering: general engineering, liquid and gas flow, HVAC, pumps, heat transfer, vessels and tanks, valves and piping, and separation equipment.  Calculators are thorough, referenced, and illustrated.  Many more online calculator are in development.
Fired Heater Design
This online calculator not only performs the calculations for you, but helps you gain a better understanding of the design procedure at the same time.   Design and learn about nearly every aspect of a fired heater at this great website.
Jehar Associates Online
You've seen Jehar Associates offer visitors to the Resource Page software discounts, but now you can tap in their experience and expertise from the internet.   This site contains too many calculators to mention, but here are just a few:   variety of fluid flow calculators, pyschrometric calculator, tubes in a shell and tube exchanger, heat loss from an insulated pipe, acid dewpoint of flue gas, and many more!  This site is certainly a bookmark!
Thermal Calculators
The Thermal Wizard from MAYA heat transfer includes unit conversions, material properties, conduction, convection, radiation, and head loss calculations.
Process Associates
You'll be sure to find something you can use here!  How about fluid flow and hydraulics, heat transfer, physical properties, and rotating equipment.  Not enough?   How about tools to help you calculation optimum sizes for separation equipment and process vessels!
Steam Table
Find those handy little steam table online.  No more reaching for you old reference books and no more interpolating.
Find more useful tools in our online store...

 


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