What is ht?
ht is open-source software for engineers and technicians working in the fields of chemical or mechanical engineering. It includes modules for various heat transfer functions.
Among the tasks this library can be used for are:
Sizing a Shell & Tube heat exchanger using any of the Zukauskas, ESDU 73031, or Bell methods
Calculating pressure drop in a Hairpin heat exchanger
Calculating heat loss of objects, including insulated objects
Calculating heat loss from buried pipe
Performing radiative heat transfer calculations
Conderser and Reboiler rating
Detailed heat exchanger evaluation; finding fouling factors
Heat transfer in packed beds
Sizing a Plate and Frame heat exchanger
Modeling an Air Cooler
Supercritical CO2 or water heat transfer
The ht library depends on the SciPy library to provide numerical constants, interpolation, integration, and numerical solving functionality. ht runs on all operating systems which support Python, is quick to install, and is free of charge. ht is designed to be easy to use while still providing powerful functionality. If you need to perform some heat transfer calculations, give ht a try.
Installation
Get the latest version of ht from https://pypi.python.org/pypi/ht/
If you have an installation of Python with pip, simple install it with:
$ pip install ht
Alternatively, if you are using conda as your package management, you can simply install ht in your environment from conda-forge channel with:
$ conda install -c conda-forge ht
To get the git version, run:
$ git clone git://github.com/CalebBell/ht.git
Documentation
ht’s documentation is available on the web:
Latest source code
The latest development version of ht’s sources can be obtained at
Bug reports
To report bugs, please use the ht’s Bug Tracker at:
License information
ht is MIT licensed. See LICENSE.txt for information on the terms & conditions for usage of this software, and a DISCLAIMER OF ALL WARRANTIES.
Although not required by the ht license, if it is convenient for you, please cite ht if used in your work. Please also consider contributing any changes you make back, such that they may be incorporated into the main library and all of us will benefit from them.
Citation
To cite ht in publications use:
Caleb Bell and Contributors (2016-2025). ht: Heat transfer component of Chemical Engineering Design Library (ChEDL) https://github.com/CalebBell/ht.
1 maintainer
Metadata
1 maintainer
Release files for ht 1.2.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| ht-1.2.0.tar.gz | 886.3 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| ht-1.2.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 1.7 MB
Release files / ht-1.2.0.tar.gz
| Download URL | ht-1.2.0.tar.gz |
|---|---|
| Size | 886.3 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
ae117387c4e99a1860d78afd391d24b1a4217cb7495250cd480606e2b7fa2ff5
|
|
BLAKE2b-256 checksum How to use checksums |
8652ecd3cfb1d4fcca3563c34b9090a7e78b8b79d8c66f4d715f5f0cdadf5219
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 26, 2025.
Transparency logRelease files / ht-1.2.0-py3-none-any.whl
| Download URL | ht-1.2.0-py3-none-any.whl |
|---|---|
| Size | 805.2 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
a4716bc3c8a9ef5e3dfff68d552232ba6f05c0edd3caa07fb72bee2306975ace
|
|
BLAKE2b-256 checksum How to use checksums |
4fb884e47b2d80bffa75ce1aa63a9b2ef8d05bc602b57d212fbb5802666f3027
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 26, 2025.
Transparency log
