Bandingkan kaedah

	Perbezaan Suhu Min Logaritma	Kaedah Keberkesanan-NTU
Bidang	Termodinamik	Termodinamik
Keluarga	Process / pipeline	Process / pipeline
Tahun asal	1950	1984
Pengasas	Donald Kern	William Kays and Alvin London
Jenis	Heat transfer correlation	Heat transfer correlation
Sumber perintis	Kern, D. Q. (1950). Process Heat Transfer. McGraw-Hill.	Kays, W. M., & London, A. L. (1984). Compact Heat Exchangers (3rd ed.). McGraw-Hill. ISBN: 978-0070334007
Alias	LMTD, logarithmic mean temperature difference	epsilon-NTU method, effectiveness method
Berkaitan	3	3
Ringkasan	The Log Mean Temperature Difference (LMTD) method is a fundamental tool for calculating heat transfer rates in heat exchangers. It defines the effective temperature difference between two fluids as the logarithmic average of the temperature differences at the inlet and outlet. This method enables engineers to size and analyze heat exchangers systematically using the basic heat transfer equation Q = U A LMTD.	The Effectiveness-NTU method is an alternative approach to heat exchanger analysis that measures thermal performance relative to the theoretical maximum possible heat transfer. It is particularly powerful for design problems where outlet temperatures are unknown. The method uses effectiveness (ratio of actual to maximum possible heat transfer) and NTU (Number of Transfer Units, a dimensionless parameter related to overall heat transfer area) to characterize heat exchanger performance.