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Log Mean Temperature DifferenceAll functions are free

Log Mean Temperature Difference

estimates LMTD and heat transfer based on the temperature at the four ends of the counterflow.

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Steady counterflow, constant U; does not include complex flow pattern correction coefficients.

Log Mean Temperature Difference: uses and methods

estimates LMTD and heat transfer based on the temperature at the four ends of the counterflow.

Applicable scope and calculation boundary

Steady counterflow, constant U; does not include complex flow pattern correction coefficients.

model and reference method

ΔTlm=(ΔT1−ΔT2)/ln(ΔT1/ΔT2)

model version: 1.1.0. The results are used for scientific research, exploration and teaching, please interpret according to the model conditions.

input parameters

hot side inlet(°C)
Value range: -100 – 2000
hot side outlet(°C)
Value range: -100 – 2000
cold side inlet(°C)
Value range: -100 – 2000
cold side outlet(°C)
Value range: -100 – 2000
total heat transfer coefficient(W/(m²·K))
Value range: 0.001 – 100000
heat transfer area(m²)
Value range: 0.001 – 1000000

How to use

  1. Load the example or enter data that matches the field description.
  2. Confirm units and models, run calculations and check diagnostics.
  3. Export charts, tables or results packages and record model versions.

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commercial application case

Industry Application · Independent Reproduction Example

Log Mean Temperature Difference

heat exchanger selection team compares the temperature difference driving force with the required area.

Public industry reference: MIT · Department of Chemical Engineering

The institution’s public research directions include: Reaction engineering, separation, thermodynamics and process systems. This link serves as a portal for field background and extended learning.

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on this site

  1. Load the default example of Log Mean Temperature Difference and check hot side inlet、hot side outlet、cold side inlet and its units.
  2. is calculated using ΔTlm=(ΔT1−ΔT2)/ln(ΔT1/ΔT2), and the results are compared after adjusting a single parameter.
  3. checks applicable conditions and diagnostics, and exports numerical tables, charts, and model versions for review.

Deliverables

estimates LMTD and heat transfer based on the temperature at the four ends of the counterflow. delivers parameter records, calculation charts, and reproducible JSON result packages.

needs to be checked before landing

Steady counterflow, constant U; does not include complex flow pattern correction coefficients.。

case is compiled for public industry purposes, and the reproduction steps are independent examples of this site; it does not mean that the above-mentioned institutions use or endorse this site, nor does it cite customer benefits that have not been publicly verified. The

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recommended by universities and research institutions

Chemical Engineering

The following is the recommended reading order of this website organized by direction relevance, public research resources and learning portals. The number is the serial number recommended by the editor, not QS, THE or paper measurement ranking; it does not represent the overall strength of the institution.

  1. 01

    MIT · Department of Chemical Engineering

    United States The

    Reaction engineering, separation, thermodynamics and process systems。

    official website link accessibility check: 2026-10-03
  2. 02

    Imperial College London · Department of Chemical Engineering

    United Kingdom

    Separation, process systems, biochemicals and energy。

    official website link accessibility check: 2026-10-03
  3. 03

    University of Minnesota · CEMS

    United States The

    Chemical Thermodynamics, Transfer and Reaction Engineering。

    official website entrance; please refer to the current public page of the institution.

catalog compiled on 2026-10-03. Link accessibility does not equate to verification of the latest papers, admissions, or program status; please check the institution's official website for specific research teams and opportunities.

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