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."
-log [h30+]
0.55
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
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
it is equal to the negative log of H+ ions. Ph=-log[H+]
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).
pH = pKa + log([A-]/[HA])