biogas (version 1.61)

comp2: Methane Content of Biogas

Description

Methane content (biogas composition) measurements from 15 batch reactors.

Usage

data("comp2")

Format

A data frame with 360 observations on the following 3 variables.

bottle

identification code, a unique value for each reactor in the dataset. A factor with levels 1_1, 1_2, 1_3, 2_1, 2_2, 2_2, ... through 5_3. The first number indicates the sample, the second the replicate.

days

elapsed time of mass measurements (from reactor setup) in days, a numeric vector.

CH4.conc

biogas methane content as a mole fraction, excluding water and all other gases other than carbon dioxide, a numeric vector

Details

These data are meant to be example data for multiple functions, e.g., interp, cumBg, or summBg. Reactors were 500 mL or 1000 mL glass serum bottles with butyl rubber septa and screw caps. Methane and carbon dioxide contents were determined by gas chromatography using a thermal conductivity detector and normalised so methane and carbon dioxide sum to 1.0. Data in vol2, comp2, and setup2 are from the same reactors.

Examples

data(comp2)