Regarding some units in Aspen
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This is my first time using Aspen; could you please tell me what these imperial units mean? F, psi, lb/hr, lbmol/hr, Btu/hr, cuft/hr.? Thank you!
F is the Chinese temperature scale； Psi is a unit of pressure, namely pounds per square inch ； lb/hr is a unit of mass flow rate, pounds per hour ； lbmol/hr is the unit for molar flow rate ； BTU/hr is the British thermal unit ； cuft/hr is a unit of volumetric flow rate, cubic feet per hour.
2# lihaosdu Thank you! So how are these units converted into the units we use in our daily lives?
1 psi = 6.895 kPa; 1 lb/hr = 0.4536 kg/h; 1 lbmol/h = 0.454 kmol/h; 1 Btu/h = 0.2931 W; 1 cuft/hr = 0.0283 m3/h
4# lihaosdu Okay, thank you very much!
Don’t you know to change the output unit to the common one? To save trouble.
In the Aspen application, it is important to choose the appropriate unit system; it is better to select SI or metric units. There’s no need for those overseas organizations to master it, in my opinion
http://www.convertworld.com/zh-Hans/ http://www.convertworld.com.sixxs.org/zh-Hans/ (IPv6) You can find information on the relationships between many units on those websites.
Are there web links for all the units? Thank you!