The use of the LMTD arises straightforwardly from the analysis of a heat exchanger with constant flow rate and fluid thermal properties. It is a simple method to approximated the temperature diving force in a heat exchanger. The LMTD is a logarithmic average of the temperature difference between the hot and cold streams at each end of the exchanger. The larger the LMTD, the more heat is transferred.
there is no difference differents words but same meaning like acclamated and get used to mean the same thing
in most cases they are the same
Not quite. The log(x/y) = log(x) - log(y) In words, this reads "The log of a quotient is the difference of the log of the numerator and the log of the denominator."
There really is no difference. Some people just say it differently.
When the data is written in the archive log file
When the data is written in the archive log file
0.55
-log [h30+]
I just wonder about the mean metal temp 1. Is it the same LMTD? 2. If 1. is no,How to cal/find the mean metal temp? Thanks for your answer YNM
The term for logging in at a website is "log on to" or "log onto" (there is a slight semantic difference that is practically never observed).
Log in is when you first start your pc and go into an account by entering a password.Whereas log on is when you switch to another account whilst on the net.
To find the Ka of HF at this temperature, you can use the formula pH = pKa + log([A-]/[HA]). Since HF is a weak acid, [A-] is equal to [H+], so you can substitute [H+] for [A-] in the formula. Rearrange the formula to solve for pKa. Then convert pKa to Ka using the relationship: Ka = 10^(-pKa).