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@JLand0299 wrote:
I was just told by my instructor that this particular problem can not be done in MathCad. Due to the fact that the actual unit for C_l and C_s needs to be Btu/ (lbm*F) or something like that. He just told me to add values without units for just a numerical answer. I do see where I need to add the multiplication to the formula.
I am pretty sure that this problem CAN be done in Mathcad and even in Prime. You just have to use Delta °F instead of just °F. Temperature units are a bit tricky - if you want to be on the simple and safe side you may consider using K throughout.
But there still is a unit mismatch in the first summand - there's missing lb or lbm in the denominator.
I added it the bold way in the following screenshot but you'll have to check the formula or the units assigned:
Can't you see that every of your three summands has different units? You simply can't add quantities of different dimensions!
Furthermore you are missing a multiplication sign between C.l and the parenthesis. Without that multiplication sign Prime assumes a function C.l with T.p-T-m as argument.
I was just told by my instructor that this particular problem can not be done in MathCad. Due to the fact that the actual unit for C_l and C_s needs to be Btu/ (lbm*F) or something like that. He just told me to add values without units for just a numerical answer. I do see where I need to add the multiplication to the formula.
@JLand0299 wrote:
I was just told by my instructor that this particular problem can not be done in MathCad. Due to the fact that the actual unit for C_l and C_s needs to be Btu/ (lbm*F) or something like that. He just told me to add values without units for just a numerical answer. I do see where I need to add the multiplication to the formula.
I am pretty sure that this problem CAN be done in Mathcad and even in Prime. You just have to use Delta °F instead of just °F. Temperature units are a bit tricky - if you want to be on the simple and safe side you may consider using K throughout.
But there still is a unit mismatch in the first summand - there's missing lb or lbm in the denominator.
I added it the bold way in the following screenshot but you'll have to check the formula or the units assigned:
Thank you sir for all your help. I appreciate your knowledge and I will pass along what I had learned.