diff --git a/README.md b/README.md index 1f98c06..855ead2 100644 --- a/README.md +++ b/README.md @@ -4,6 +4,8 @@ GasCompressibility-py is a Python library for calculating the gas compressibility factor, $Z$, based on real gas law. It is designed with practical oil field application in mind, in which the required inputs ($T$, $P$, and $\gamma_{g}$) can be readily obtained from the surface facility. +If you like this package, please consider giving a star :star: on the top right corner! + ## 0. Documentation Have you ever had an experience of finding the package that piques your interest, only to give up a few moments later after finding out that it has an insane learning curve because the documentation sucks? Worry not. **The package comes with extensive documentation support.** If you have any questions or looking for tutorials, just skim through this README introduction or check out the [official documentation](https://aegis4048.github.io/GasCompressibility-py/theories.html). diff --git a/docs/_modules/piper.html b/docs/_modules/piper.html index f272f75..a30ff9f 100644 --- a/docs/_modules/piper.html +++ b/docs/_modules/piper.html @@ -366,9 +366,9 @@

Source code for piper

         self.K = None
         """Stewart-Burkhardt-VOO parameter K, (°R/psia^0.5)"""
         self.Tr = None
-        """pseudo-reduced temperature, Tr (°R)"""
+        """pseudo-reduced temperature, Tr (dimensionless)"""
         self.Pr = None
-        """pseudo-reduced pressure, Pr (psia)"""
+        """pseudo-reduced pressure, Pr (dimensionless)"""
 
         self.ps_props = {
             'Tpc': None,
@@ -542,7 +542,7 @@ 
Source code for piper
 
 
[docs]    def calc_Tr(self, T=None, sg=None, Tpc=None, H2S=None, CO2=None, N2=None, J=None, K=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced temperature, Tr (°R)
+        Calculates pseudo-reduced temperature, Tr (dimensionless)
 
         Parameters
         ----------
@@ -566,7 +566,7 @@ 
Source code for piper
         Returns
         -------
         float
-            pseudo-reduced temperature, Tr (°R)
+            pseudo-reduced temperature, Tr (dimensionless)
 
         """
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
@@ -579,7 +579,7 @@ 
Source code for piper
     """pseudo-reduced pressure (psi)"""
 
[docs]    def calc_Pr(self, P=None, sg=None, Tpc=None, Ppc=None, H2S=None, CO2=None, N2=None, J=None, K=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced pressure, Pr (psia)
+        Calculates pseudo-reduced pressure, Pr (dimensionless)
 
         Parameters
         ----------
@@ -603,7 +603,7 @@ 
Source code for piper
         Returns
         -------
         float
-            pseudo-reduced pressure, Pr (psia)
+            pseudo-reduced pressure, Pr (dimensionless)
         """
 
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
diff --git a/docs/_modules/sutton.html b/docs/_modules/sutton.html
index 10ca8c0..ac771eb 100644
--- a/docs/_modules/sutton.html
+++ b/docs/_modules/sutton.html
@@ -362,9 +362,9 @@ 
Source code for sutton
         self.Ppc_corrected = None
         """corrected pseudo-critical pressure, P'pc (psia)"""
         self.Tr = None
-        """pseudo-reduced temperature, Tr (°R)"""
+        """pseudo-reduced temperature, Tr (dimensionless)"""
         self.Pr = None
-        """pseudo-reduced pressure, Pr (psia)"""
+        """pseudo-reduced pressure, Pr (dimensionless)"""
 
         self.ps_props = {
             'Tpc': None,
@@ -551,7 +551,7 @@ 
Source code for sutton
 
 
[docs]    def calc_Tr(self, T=None, Tpc_corrected=None, sg=None, Tpc=None, e_correction=None, H2S=None, CO2=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced temperature, Tr (°R)
+        Calculates pseudo-reduced temperature, Tr (dimensionless)
 
         Parameters
         ----------
@@ -575,7 +575,7 @@ 
Source code for sutton
         Returns
         -------
         float
-            pseudo-reduced temperature, Tr (°R)
+            pseudo-reduced temperature, Tr (dimensionless)
         """
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
         self._initialize_T(T)
@@ -587,7 +587,7 @@ 
Source code for sutton
     """pseudo-reduced pressure (psi)"""
 
[docs]    def calc_Pr(self, P=None, Ppc_corrected=None, sg=None, Tpc=None, Ppc=None, e_correction=None, Tpc_corrected=None, H2S=None, CO2=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced pressure, Pr (psia)
+        Calculates pseudo-reduced pressure, Pr (dimensionless)
 
         Parameters
         ----------
@@ -615,7 +615,7 @@ 
Source code for sutton
         Returns
         -------
         float
-            pseudo-reduced pressure, Pr (psia)
+            pseudo-reduced pressure, Pr (dimensionless)
         """
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
         self._initialize_P(P)
diff --git a/docs/_modules/z_helper.html b/docs/_modules/z_helper.html
index 7eeac2c..76e8bed 100644
--- a/docs/_modules/z_helper.html
+++ b/docs/_modules/z_helper.html
@@ -505,9 +505,9 @@ 
Source code for z_helper
     N2 : float
         mole fraction of N2 (dimensionless). Available only when ``pmodel='piper'`` (default)
     Pr : float
-        pseudo-reduced pressure, Pr (psia)
+        pseudo-reduced pressure, Pr (dimensionless)
     Tr : float
-        pseudo-reduced temperature, Tr (°R)
+        pseudo-reduced temperature, Tr (dimensionless)
     pmodel : str
         choice of a pseudo-critical model.
         Check :ref:`Theories 1: Pseudo-Critical Property Models <theories:1. Pseudo-Critical Property Models>` for more information.
diff --git a/docs/build/doctrees/calc_z.doctree b/docs/build/doctrees/calc_z.doctree
index a1c9079..48a0a84 100644
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diff --git a/docs/build/doctrees/environment.pickle b/docs/build/doctrees/environment.pickle
index f5a13dd..939569b 100644
Binary files a/docs/build/doctrees/environment.pickle and b/docs/build/doctrees/environment.pickle differ
diff --git a/docs/build/doctrees/functions/piper.Piper.calc_Pr.doctree b/docs/build/doctrees/functions/piper.Piper.calc_Pr.doctree
index 88e6789..b346339 100644
Binary files a/docs/build/doctrees/functions/piper.Piper.calc_Pr.doctree and b/docs/build/doctrees/functions/piper.Piper.calc_Pr.doctree differ
diff --git a/docs/build/doctrees/functions/piper.Piper.calc_Tr.doctree b/docs/build/doctrees/functions/piper.Piper.calc_Tr.doctree
index 726fb71..0f66b98 100644
Binary files a/docs/build/doctrees/functions/piper.Piper.calc_Tr.doctree and b/docs/build/doctrees/functions/piper.Piper.calc_Tr.doctree differ
diff --git a/docs/build/doctrees/functions/sutton.Sutton.calc_Pr.doctree b/docs/build/doctrees/functions/sutton.Sutton.calc_Pr.doctree
index b51116c..5aa252f 100644
Binary files a/docs/build/doctrees/functions/sutton.Sutton.calc_Pr.doctree and b/docs/build/doctrees/functions/sutton.Sutton.calc_Pr.doctree differ
diff --git a/docs/build/doctrees/functions/sutton.Sutton.calc_Tr.doctree b/docs/build/doctrees/functions/sutton.Sutton.calc_Tr.doctree
index 5b85c33..e7852e7 100644
Binary files a/docs/build/doctrees/functions/sutton.Sutton.calc_Tr.doctree and b/docs/build/doctrees/functions/sutton.Sutton.calc_Tr.doctree differ
diff --git a/docs/build/doctrees/piper.doctree b/docs/build/doctrees/piper.doctree
index d3d4b3b..65cd030 100644
Binary files a/docs/build/doctrees/piper.doctree and b/docs/build/doctrees/piper.doctree differ
diff --git a/docs/build/doctrees/sutton.doctree b/docs/build/doctrees/sutton.doctree
index f76d9b0..a0c67e6 100644
Binary files a/docs/build/doctrees/sutton.doctree and b/docs/build/doctrees/sutton.doctree differ
diff --git a/docs/build/html/_modules/piper.html b/docs/build/html/_modules/piper.html
index f272f75..a30ff9f 100644
--- a/docs/build/html/_modules/piper.html
+++ b/docs/build/html/_modules/piper.html
@@ -366,9 +366,9 @@ 
Source code for piper
         self.K = None
         """Stewart-Burkhardt-VOO parameter K, (°R/psia^0.5)"""
         self.Tr = None
-        """pseudo-reduced temperature, Tr (°R)"""
+        """pseudo-reduced temperature, Tr (dimensionless)"""
         self.Pr = None
-        """pseudo-reduced pressure, Pr (psia)"""
+        """pseudo-reduced pressure, Pr (dimensionless)"""
 
         self.ps_props = {
             'Tpc': None,
@@ -542,7 +542,7 @@ 
Source code for piper
 
 
[docs]    def calc_Tr(self, T=None, sg=None, Tpc=None, H2S=None, CO2=None, N2=None, J=None, K=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced temperature, Tr (°R)
+        Calculates pseudo-reduced temperature, Tr (dimensionless)
 
         Parameters
         ----------
@@ -566,7 +566,7 @@ 
Source code for piper
         Returns
         -------
         float
-            pseudo-reduced temperature, Tr (°R)
+            pseudo-reduced temperature, Tr (dimensionless)
 
         """
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
@@ -579,7 +579,7 @@ 
Source code for piper
     """pseudo-reduced pressure (psi)"""
 
[docs]    def calc_Pr(self, P=None, sg=None, Tpc=None, Ppc=None, H2S=None, CO2=None, N2=None, J=None, K=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced pressure, Pr (psia)
+        Calculates pseudo-reduced pressure, Pr (dimensionless)
 
         Parameters
         ----------
@@ -603,7 +603,7 @@ 
Source code for piper
         Returns
         -------
         float
-            pseudo-reduced pressure, Pr (psia)
+            pseudo-reduced pressure, Pr (dimensionless)
         """
 
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
diff --git a/docs/build/html/_modules/sutton.html b/docs/build/html/_modules/sutton.html
index 10ca8c0..ac771eb 100644
--- a/docs/build/html/_modules/sutton.html
+++ b/docs/build/html/_modules/sutton.html
@@ -362,9 +362,9 @@ 
Source code for sutton
         self.Ppc_corrected = None
         """corrected pseudo-critical pressure, P'pc (psia)"""
         self.Tr = None
-        """pseudo-reduced temperature, Tr (°R)"""
+        """pseudo-reduced temperature, Tr (dimensionless)"""
         self.Pr = None
-        """pseudo-reduced pressure, Pr (psia)"""
+        """pseudo-reduced pressure, Pr (dimensionless)"""
 
         self.ps_props = {
             'Tpc': None,
@@ -551,7 +551,7 @@ 
Source code for sutton
 
 
[docs]    def calc_Tr(self, T=None, Tpc_corrected=None, sg=None, Tpc=None, e_correction=None, H2S=None, CO2=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced temperature, Tr (°R)
+        Calculates pseudo-reduced temperature, Tr (dimensionless)
 
         Parameters
         ----------
@@ -575,7 +575,7 @@ 
Source code for sutton
         Returns
         -------
         float
-            pseudo-reduced temperature, Tr (°R)
+            pseudo-reduced temperature, Tr (dimensionless)
         """
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
         self._initialize_T(T)
@@ -587,7 +587,7 @@ 
Source code for sutton
     """pseudo-reduced pressure (psi)"""
 
[docs]    def calc_Pr(self, P=None, Ppc_corrected=None, sg=None, Tpc=None, Ppc=None, e_correction=None, Tpc_corrected=None, H2S=None, CO2=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced pressure, Pr (psia)
+        Calculates pseudo-reduced pressure, Pr (dimensionless)
 
         Parameters
         ----------
@@ -615,7 +615,7 @@ 
Source code for sutton
         Returns
         -------
         float
-            pseudo-reduced pressure, Pr (psia)
+            pseudo-reduced pressure, Pr (dimensionless)
         """
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
         self._initialize_P(P)
diff --git a/docs/build/html/_modules/z_helper.html b/docs/build/html/_modules/z_helper.html
index 7eeac2c..76e8bed 100644
--- a/docs/build/html/_modules/z_helper.html
+++ b/docs/build/html/_modules/z_helper.html
@@ -505,9 +505,9 @@ 
Source code for z_helper
     N2 : float
         mole fraction of N2 (dimensionless). Available only when ``pmodel='piper'`` (default)
     Pr : float
-        pseudo-reduced pressure, Pr (psia)
+        pseudo-reduced pressure, Pr (dimensionless)
     Tr : float
-        pseudo-reduced temperature, Tr (°R)
+        pseudo-reduced temperature, Tr (dimensionless)
     pmodel : str
         choice of a pseudo-critical model.
         Check :ref:`Theories 1: Pseudo-Critical Property Models <theories:1. Pseudo-Critical Property Models>` for more information.
diff --git a/docs/build/html/calc_z.html b/docs/build/html/calc_z.html
index e4e52ae..1fd81cb 100644
--- a/docs/build/html/calc_z.html
+++ b/docs/build/html/calc_z.html
@@ -399,8 +399,8 @@ 
gascompressibility.calc_zfloat) – mole fraction of H2S (dimensionless)

 
  • CO2 (float) – mole fraction of CO2 (dimensionless)
    • 
 
  • N2 (float) – mole fraction of N2 (dimensionless). Available only when pmodel='piper' (default)
    • 
-
  • Pr (float) – pseudo-reduced pressure, Pr (psia)
    • 
-
  • Tr (float) – pseudo-reduced temperature, Tr (°R)
    • 
+
  • Pr (float) – pseudo-reduced pressure, Pr (dimensionless)
    • 
+
  • Tr (float) – pseudo-reduced temperature, Tr (dimensionless)
    • 
 
  • pmodel (str) – 
    choice of a pseudo-critical model.
 Check Theories 1: Pseudo-Critical Property Models for more information.
 Accepted inputs: 'sutton' | 'piper'
    
diff --git a/docs/build/html/functions/piper.Piper.calc_Pr.html b/docs/build/html/functions/piper.Piper.calc_Pr.html
index 41c526f..5a166a9 100644
--- a/docs/build/html/functions/piper.Piper.calc_Pr.html
+++ b/docs/build/html/functions/piper.Piper.calc_Pr.html
@@ -369,7 +369,7 @@
 
    
 
    
 Piper.calc_Pr(P=None, sg=None, Tpc=None, Ppc=None, H2S=None, CO2=None, N2=None, J=None, K=None, ignore_conflict=False)[source]#
    
-
    Calculates pseudo-reduced pressure, Pr (psia)
    
+
    Calculates pseudo-reduced pressure, Pr (dimensionless)
    
 
    
 
    Parameters:
    
 
      
@@ -384,7 +384,7 @@
 
    
 
    
 
    Returns:
    
-
    pseudo-reduced pressure, Pr (psia)
    
+
    pseudo-reduced pressure, Pr (dimensionless)
    
 
    
 
    Return type:
    
 
    float
    
diff --git a/docs/build/html/functions/piper.Piper.calc_Tr.html b/docs/build/html/functions/piper.Piper.calc_Tr.html
index 9b71bcf..735c874 100644
--- a/docs/build/html/functions/piper.Piper.calc_Tr.html
+++ b/docs/build/html/functions/piper.Piper.calc_Tr.html
@@ -369,7 +369,7 @@
 
    
 
    
 Piper.calc_Tr(T=None, sg=None, Tpc=None, H2S=None, CO2=None, N2=None, J=None, K=None, ignore_conflict=False)[source]#
    
-
    Calculates pseudo-reduced temperature, Tr (°R)
    
+
    Calculates pseudo-reduced temperature, Tr (dimensionless)
    
 
    
 
    Parameters:
    
 
      
@@ -384,7 +384,7 @@
 
    
 
    
 
    Returns:
    
-
    pseudo-reduced temperature, Tr (°R)
    
+
    pseudo-reduced temperature, Tr (dimensionless)
    
 
    
 
    Return type:
    
 
    float
    
diff --git a/docs/build/html/functions/sutton.Sutton.calc_Pr.html b/docs/build/html/functions/sutton.Sutton.calc_Pr.html
index 3baba45..4e1089c 100644
--- a/docs/build/html/functions/sutton.Sutton.calc_Pr.html
+++ b/docs/build/html/functions/sutton.Sutton.calc_Pr.html
@@ -369,7 +369,7 @@
 
    
 
    
 Sutton.calc_Pr(P=None, Ppc_corrected=None, sg=None, Tpc=None, Ppc=None, e_correction=None, Tpc_corrected=None, H2S=None, CO2=None, ignore_conflict=False)[source]#
    
-
    Calculates pseudo-reduced pressure, Pr (psia)
    
+
    Calculates pseudo-reduced pressure, Pr (dimensionless)
    
 
    
 
    Parameters:
    
 
      
@@ -386,7 +386,7 @@
 
    
 
    
 
    Returns:
    
-
    pseudo-reduced pressure, Pr (psia)
    
+
    pseudo-reduced pressure, Pr (dimensionless)
    
 
    
 
    Return type:
    
 
    float
    
diff --git a/docs/build/html/functions/sutton.Sutton.calc_Tr.html b/docs/build/html/functions/sutton.Sutton.calc_Tr.html
index 1a73a03..efc3219 100644
--- a/docs/build/html/functions/sutton.Sutton.calc_Tr.html
+++ b/docs/build/html/functions/sutton.Sutton.calc_Tr.html
@@ -369,7 +369,7 @@
 
    
 
    
 Sutton.calc_Tr(T=None, Tpc_corrected=None, sg=None, Tpc=None, e_correction=None, H2S=None, CO2=None, ignore_conflict=False)[source]#
    
-
    Calculates pseudo-reduced temperature, Tr (°R)
    
+
    Calculates pseudo-reduced temperature, Tr (dimensionless)
    
 
    
 
    Parameters:
    
 
      
@@ -384,7 +384,7 @@
 
    
 
    
 
    Returns:
    
-
    pseudo-reduced temperature, Tr (°R)
    
+
    pseudo-reduced temperature, Tr (dimensionless)
    
 
    
 
    Return type:
    
 
    float
    
diff --git a/docs/build/html/piper.html b/docs/build/html/piper.html
index e208bcd..8ebe102 100644
--- a/docs/build/html/piper.html
+++ b/docs/build/html/piper.html
@@ -495,10 +495,10 @@ 
    Methods
    calc_Tr
    
-
    Calculates pseudo-reduced temperature, Tr (°R)
    
+
    Calculates pseudo-reduced temperature, Tr (dimensionless)
    
 
 
    calc_Pr
    
-
    Calculates pseudo-reduced pressure, Pr (psia)
    
+
    Calculates pseudo-reduced pressure, Pr (dimensionless)
    
 
 
 
@@ -545,10 +545,10 @@ 
    Attributes
    Tr
    
-
    pseudo-reduced temperature, Tr (°R)
    
+
    pseudo-reduced temperature, Tr (dimensionless)
    
 
 
    Pr
    
-
    pseudo-reduced pressure, Pr (psia)
    
+
    pseudo-reduced pressure, Pr (dimensionless)
    
 
 
    ps_props
    
 
    dictionary of pseudo-critical properties.
    
diff --git a/docs/build/html/searchindex.js b/docs/build/html/searchindex.js
index 41bfece..8217308 100644
--- a/docs/build/html/searchindex.js
+++ b/docs/build/html/searchindex.js
@@ -1 +1 @@
-Search.setIndex({"docnames": ["calc_z", "discussion", "functions/piper.Piper.calc_J", "functions/piper.Piper.calc_K", "functions/piper.Piper.calc_Ppc", "functions/piper.Piper.calc_Pr", "functions/piper.Piper.calc_Tpc", "functions/piper.Piper.calc_Tr", "functions/sutton.Sutton.calc_Ppc", "functions/sutton.Sutton.calc_Ppc_corrected", "functions/sutton.Sutton.calc_Pr", "functions/sutton.Sutton.calc_Tpc", "functions/sutton.Sutton.calc_Tpc_corrected", "functions/sutton.Sutton.calc_Tr", "functions/sutton.Sutton.calc_e_correction", "index", "modules", "piper", "pseudocritical", "quickstart", "sutton", "theories"], "filenames": ["calc_z.rst", "discussion.rst", "functions\\piper.Piper.calc_J.rst", "functions\\piper.Piper.calc_K.rst", "functions\\piper.Piper.calc_Ppc.rst", "functions\\piper.Piper.calc_Pr.rst", "functions\\piper.Piper.calc_Tpc.rst", "functions\\piper.Piper.calc_Tr.rst", "functions\\sutton.Sutton.calc_Ppc.rst", "functions\\sutton.Sutton.calc_Ppc_corrected.rst", 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\ No newline at end of file
diff --git a/docs/build/html/sutton.html b/docs/build/html/sutton.html
index 1cbb4c8..70df7c8 100644
--- a/docs/build/html/sutton.html
+++ b/docs/build/html/sutton.html
@@ -507,10 +507,10 @@ 
    Methods
    calc_Tr
    
-
    Calculates pseudo-reduced temperature, Tr (°R)
    
+
    Calculates pseudo-reduced temperature, Tr (dimensionless)
    
 
 
    calc_Pr
    
-
    Calculates pseudo-reduced pressure, Pr (psia)
    
+
    Calculates pseudo-reduced pressure, Pr (dimensionless)
    
 
 
 
@@ -554,10 +554,10 @@ 
    Attributes
    Tr
    
-
    pseudo-reduced temperature, Tr (°R)
    
+
    pseudo-reduced temperature, Tr (dimensionless)
    
 
 
    Pr
    
-
    pseudo-reduced pressure, Pr (psia)
    
+
    pseudo-reduced pressure, Pr (dimensionless)
    
 
 
    ps_props
    
 
    dictionary of pseudo-critical properties.
    
diff --git a/docs/calc_z.html b/docs/calc_z.html
index e4e52ae..1fd81cb 100644
--- a/docs/calc_z.html
+++ b/docs/calc_z.html
@@ -399,8 +399,8 @@ 
    gascompressibility.calc_zfloat) – mole fraction of H2S (dimensionless)
    • 
 
  • CO2 (float) – mole fraction of CO2 (dimensionless)
    • 
 
  • N2 (float) – mole fraction of N2 (dimensionless). Available only when pmodel='piper' (default)
    • 
-
  • Pr (float) – pseudo-reduced pressure, Pr (psia)
    • 
-
  • Tr (float) – pseudo-reduced temperature, Tr (°R)
    • 
+
  • Pr (float) – pseudo-reduced pressure, Pr (dimensionless)
    • 
+
  • Tr (float) – pseudo-reduced temperature, Tr (dimensionless)
    • 
 
  • pmodel (str) – 
    choice of a pseudo-critical model.
 Check Theories 1: Pseudo-Critical Property Models for more information.
 Accepted inputs: 'sutton' | 'piper'
    
diff --git a/docs/doc-publish-script.py b/docs/doc-publish-script.py
index 75c1bfb..e8d94f8 100644
--- a/docs/doc-publish-script.py
+++ b/docs/doc-publish-script.py
@@ -7,6 +7,4 @@
 
 # run this script before publishing to documentation page
 
-# git rm --cached GasCompressibiltiy-py-docs -r
-# git submodule add https://github.com/aegis4048/GasCompressibiltiy-py-docs.git GasCompressibiltiy-py-docs
 
diff --git a/docs/functions/piper.Piper.calc_Pr.html b/docs/functions/piper.Piper.calc_Pr.html
index 41c526f..5a166a9 100644
--- a/docs/functions/piper.Piper.calc_Pr.html
+++ b/docs/functions/piper.Piper.calc_Pr.html
@@ -369,7 +369,7 @@
 
    
 
    
 Piper.calc_Pr(P=None, sg=None, Tpc=None, Ppc=None, H2S=None, CO2=None, N2=None, J=None, K=None, ignore_conflict=False)[source]#
    
-
    Calculates pseudo-reduced pressure, Pr (psia)
    
+
    Calculates pseudo-reduced pressure, Pr (dimensionless)
    
 
    
 
    Parameters:
    
 
      
@@ -384,7 +384,7 @@
 
    
 
    
 
    Returns:
    
-
    pseudo-reduced pressure, Pr (psia)
    
+
    pseudo-reduced pressure, Pr (dimensionless)
    
 
    
 
    Return type:
    
 
    float
    
diff --git a/docs/functions/piper.Piper.calc_Tr.html b/docs/functions/piper.Piper.calc_Tr.html
index 9b71bcf..735c874 100644
--- a/docs/functions/piper.Piper.calc_Tr.html
+++ b/docs/functions/piper.Piper.calc_Tr.html
@@ -369,7 +369,7 @@
 
    
 
    
 Piper.calc_Tr(T=None, sg=None, Tpc=None, H2S=None, CO2=None, N2=None, J=None, K=None, ignore_conflict=False)[source]#
    
-
    Calculates pseudo-reduced temperature, Tr (°R)
    
+
    Calculates pseudo-reduced temperature, Tr (dimensionless)
    
 
    
 
    Parameters:
    
 
      
@@ -384,7 +384,7 @@
 
    
 
    
 
    Returns:
    
-
    pseudo-reduced temperature, Tr (°R)
    
+
    pseudo-reduced temperature, Tr (dimensionless)
    
 
    
 
    Return type:
    
 
    float
    
diff --git a/docs/functions/sutton.Sutton.calc_Pr.html b/docs/functions/sutton.Sutton.calc_Pr.html
index 3baba45..4e1089c 100644
--- a/docs/functions/sutton.Sutton.calc_Pr.html
+++ b/docs/functions/sutton.Sutton.calc_Pr.html
@@ -369,7 +369,7 @@
 
    
 
    
 Sutton.calc_Pr(P=None, Ppc_corrected=None, sg=None, Tpc=None, Ppc=None, e_correction=None, Tpc_corrected=None, H2S=None, CO2=None, ignore_conflict=False)[source]#
    
-
    Calculates pseudo-reduced pressure, Pr (psia)
    
+
    Calculates pseudo-reduced pressure, Pr (dimensionless)
    
 
    
 
    Parameters:
    
 
      
@@ -386,7 +386,7 @@
 
    
 
    
 
    Returns:
    
-
    pseudo-reduced pressure, Pr (psia)
    
+
    pseudo-reduced pressure, Pr (dimensionless)
    
 
    
 
    Return type:
    
 
    float
    
diff --git a/docs/functions/sutton.Sutton.calc_Tr.html b/docs/functions/sutton.Sutton.calc_Tr.html
index 1a73a03..efc3219 100644
--- a/docs/functions/sutton.Sutton.calc_Tr.html
+++ b/docs/functions/sutton.Sutton.calc_Tr.html
@@ -369,7 +369,7 @@
 
    
 
    
 Sutton.calc_Tr(T=None, Tpc_corrected=None, sg=None, Tpc=None, e_correction=None, H2S=None, CO2=None, ignore_conflict=False)[source]#
    
-
    Calculates pseudo-reduced temperature, Tr (°R)
    
+
    Calculates pseudo-reduced temperature, Tr (dimensionless)
    
 
    
 
    Parameters:
    
 
      
@@ -384,7 +384,7 @@
 
    
 
    
 
    Returns:
    
-
    pseudo-reduced temperature, Tr (°R)
    
+
    pseudo-reduced temperature, Tr (dimensionless)
    
 
    
 
    Return type:
    
 
    float
    
diff --git a/docs/piper.html b/docs/piper.html
index e208bcd..8ebe102 100644
--- a/docs/piper.html
+++ b/docs/piper.html
@@ -495,10 +495,10 @@ 
    Methods
    calc_Tr
    
-
    Calculates pseudo-reduced temperature, Tr (°R)
    
+
    Calculates pseudo-reduced temperature, Tr (dimensionless)
    
 
 
    calc_Pr
    
-
    Calculates pseudo-reduced pressure, Pr (psia)
    
+
    Calculates pseudo-reduced pressure, Pr (dimensionless)
    
 
 
 
@@ -545,10 +545,10 @@ 
    Attributes
    Tr
    
-
    pseudo-reduced temperature, Tr (°R)
    
+
    pseudo-reduced temperature, Tr (dimensionless)
    
 
 
    Pr
    
-
    pseudo-reduced pressure, Pr (psia)
    
+
    pseudo-reduced pressure, Pr (dimensionless)
    
 
 
    ps_props
    
 
    dictionary of pseudo-critical properties.
    
diff --git a/docs/searchindex.js b/docs/searchindex.js
index 41bfece..8217308 100644
--- a/docs/searchindex.js
+++ b/docs/searchindex.js
@@ -1 +1 @@
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\ No newline at end of file
diff --git a/docs/sutton.html b/docs/sutton.html
index 1cbb4c8..70df7c8 100644
--- a/docs/sutton.html
+++ b/docs/sutton.html
@@ -507,10 +507,10 @@ 
    Methods
    calc_Tr
    
-
    Calculates pseudo-reduced temperature, Tr (°R)
    
+
    Calculates pseudo-reduced temperature, Tr (dimensionless)
    
 
 
    calc_Pr
    
-
    Calculates pseudo-reduced pressure, Pr (psia)
    
+
    Calculates pseudo-reduced pressure, Pr (dimensionless)
    
 
 
 
@@ -554,10 +554,10 @@ 
    Attributes
    Tr
    
-
    pseudo-reduced temperature, Tr (°R)
    
+
    pseudo-reduced temperature, Tr (dimensionless)
    
 
 
    Pr
    
-
    pseudo-reduced pressure, Pr (psia)
    
+
    pseudo-reduced pressure, Pr (dimensionless)
    
 
 
    ps_props
    
 
    dictionary of pseudo-critical properties.
    
diff --git a/gascompressibility/pseudocritical/piper.py b/gascompressibility/pseudocritical/piper.py
index 76f46d3..edbc2f5 100644
--- a/gascompressibility/pseudocritical/piper.py
+++ b/gascompressibility/pseudocritical/piper.py
@@ -48,9 +48,9 @@ def __init__(self):
         self.K = None
         """Stewart-Burkhardt-VOO parameter K, (°R/psia^0.5)"""
         self.Tr = None
-        """pseudo-reduced temperature, Tr (°R)"""
+        """pseudo-reduced temperature, Tr (dimensionless)"""
         self.Pr = None
-        """pseudo-reduced pressure, Pr (psia)"""
+        """pseudo-reduced pressure, Pr (dimensionless)"""
 
         self.ps_props = {
             'Tpc': None,
@@ -224,7 +224,7 @@ def calc_Ppc(self, sg=None, H2S=None, CO2=None, N2=None, J=None, K=None, Tpc=Non
 
     def calc_Tr(self, T=None, sg=None, Tpc=None, H2S=None, CO2=None, N2=None, J=None, K=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced temperature, Tr (°R)
+        Calculates pseudo-reduced temperature, Tr (dimensionless)
 
         Parameters
         ----------
@@ -248,7 +248,7 @@ def calc_Tr(self, T=None, sg=None, Tpc=None, H2S=None, CO2=None, N2=None, J=None
         Returns
         -------
         float
-            pseudo-reduced temperature, Tr (°R)
+            pseudo-reduced temperature, Tr (dimensionless)
 
         """
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
@@ -261,7 +261,7 @@ def calc_Tr(self, T=None, sg=None, Tpc=None, H2S=None, CO2=None, N2=None, J=None
     """pseudo-reduced pressure (psi)"""
     def calc_Pr(self, P=None, sg=None, Tpc=None, Ppc=None, H2S=None, CO2=None, N2=None, J=None, K=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced pressure, Pr (psia)
+        Calculates pseudo-reduced pressure, Pr (dimensionless)
 
         Parameters
         ----------
@@ -285,7 +285,7 @@ def calc_Pr(self, P=None, sg=None, Tpc=None, Ppc=None, H2S=None, CO2=None, N2=No
         Returns
         -------
         float
-            pseudo-reduced pressure, Pr (psia)
+            pseudo-reduced pressure, Pr (dimensionless)
         """
 
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
diff --git a/gascompressibility/pseudocritical/sutton.py b/gascompressibility/pseudocritical/sutton.py
index 228a584..35f7a3c 100644
--- a/gascompressibility/pseudocritical/sutton.py
+++ b/gascompressibility/pseudocritical/sutton.py
@@ -44,9 +44,9 @@ def __init__(self):
         self.Ppc_corrected = None
         """corrected pseudo-critical pressure, P'pc (psia)"""
         self.Tr = None
-        """pseudo-reduced temperature, Tr (°R)"""
+        """pseudo-reduced temperature, Tr (dimensionless)"""
         self.Pr = None
-        """pseudo-reduced pressure, Pr (psia)"""
+        """pseudo-reduced pressure, Pr (dimensionless)"""
 
         self.ps_props = {
             'Tpc': None,
@@ -233,7 +233,7 @@ def calc_Ppc_corrected(self, sg=None, Tpc=None, Ppc=None, e_correction=None, Tpc
 
     def calc_Tr(self, T=None, Tpc_corrected=None, sg=None, Tpc=None, e_correction=None, H2S=None, CO2=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced temperature, Tr (°R)
+        Calculates pseudo-reduced temperature, Tr (dimensionless)
 
         Parameters
         ----------
@@ -257,7 +257,7 @@ def calc_Tr(self, T=None, Tpc_corrected=None, sg=None, Tpc=None, e_correction=No
         Returns
         -------
         float
-            pseudo-reduced temperature, Tr (°R)
+            pseudo-reduced temperature, Tr (dimensionless)
         """
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
         self._initialize_T(T)
@@ -269,7 +269,7 @@ def calc_Tr(self, T=None, Tpc_corrected=None, sg=None, Tpc=None, e_correction=No
     """pseudo-reduced pressure (psi)"""
     def calc_Pr(self, P=None, Ppc_corrected=None, sg=None, Tpc=None, Ppc=None, e_correction=None, Tpc_corrected=None, H2S=None, CO2=None, ignore_conflict=False):
         """
-        Calculates pseudo-reduced pressure, Pr (psia)
+        Calculates pseudo-reduced pressure, Pr (dimensionless)
 
         Parameters
         ----------
@@ -297,7 +297,7 @@ def calc_Pr(self, P=None, Ppc_corrected=None, sg=None, Tpc=None, Ppc=None, e_cor
         Returns
         -------
         float
-            pseudo-reduced pressure, Pr (psia)
+            pseudo-reduced pressure, Pr (dimensionless)
         """
         self._set_first_caller_attributes(inspect.stack()[0][3], locals())
         self._initialize_P(P)
diff --git a/gascompressibility/z_correlation/z_helper.py b/gascompressibility/z_correlation/z_helper.py
index fe0be4a..a5848b9 100644
--- a/gascompressibility/z_correlation/z_helper.py
+++ b/gascompressibility/z_correlation/z_helper.py
@@ -187,9 +187,9 @@ def calc_z(sg=None, P=None, T=None, H2S=None, CO2=None, N2=None, Pr=None, Tr=Non
     N2 : float
         mole fraction of N2 (dimensionless). Available only when ``pmodel='piper'`` (default)
     Pr : float
-        pseudo-reduced pressure, Pr (psia)
+        pseudo-reduced pressure, Pr (dimensionless)
     Tr : float
-        pseudo-reduced temperature, Tr (°R)
+        pseudo-reduced temperature, Tr (dimensionless)
     pmodel : str
         choice of a pseudo-critical model.
         Check :ref:`Theories 1: Pseudo-Critical Property Models ` for more information.