How to simulate steam production
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This post was last edited by dsliang168 on 2021-2-10 07:50. As shown in the figure, assuming that the inlet and outlet temperatures, flow rates, and composition of the gas entering the waste heat boiler are known, as well as the temperature of the soft water fed into the waste heat boiler, determine how to simulate the amount of steam that can be produced at 10 atm(g) In theory, it should be possible to calculate it, but I’ve tried hard for ages yet still don’t know how to carry out the simulation (I asked others and they said it’s just a matter of doing some calculations and then checking the gas fraction in the outlet stream). Please give me some advice; thanks! ! !
I can calculate the steam production using HTFS+ software, but I can’t simulate it in Aspen :'(
It’s done; just specify it directly in the utilities section
Calculated using latent heat, in practice, 500 kcal of heat is required to produce 1 kg of steam. Calculate the steam volume based on the waste heat.
ASPEN uses a sequential calculation method; when you draw the inlet flow streams for the boiler, it is necessary to specify their flow rates, otherwise it cannot operate. The steam production can be calculated using a simple heat exchanger, by defining certain parameters for the inlet water and steam within the utility items. Of course, sensitivity analysis can also be used for calculation, but it’s more complicated.
It’s quite simple to do manually; I’m learning the Aspen software on my own