Select fuel type and variant

The data in the biolex database is firstly sorted according to the first level of the CEN/TS 14961 standard classification, which distinguishes between the following fuel types:

  • Woody biomass
  • Herbaceous biomass (e.g. different types of straw)
  • Fruit biomass (e.g. olives)
  • Blends and mixtures.

This selection of “fuel type” takes place in the opening window of the database (se Figure 1).

Figure 1: Screen shot choose fuel type

Figure 1: Screen shot choose fuel type

Hereafter a “fuel variant” must be selected. This distinction must been done to either view analysed samples contained in the biolex database or average data collected by the European consortium in the CEN classification project TC 335. The CEN  data are selected data representing typical values for some solid biomass fuels in Europe and are meant to be used mainly as comparison to the other samples and biomass fuels.

In Figure 2,  “Woody biomass” and “analysed samples” have been chosen and a list of the available species now appears in the left column.
Samples where the type eg. woody biomass is known but the species is not are collected under “Not defined”. In some cases only the type of fuel is known e.g. “Coniferous wood” but the exact specie is unknown.

Figure 2: Screen shot select fuel variant

Figure 2: Screen shot select fuel variant

The specie of interest is chosen by clicking in the circle to the left of the name in the first column.

In the second column “Entries”, the number of entries contained in the database is displayed. In the example there are 5 entries of beech in the database. By selecting which part of plant and/or form of fuel in the dropdown filters, the number of available entries is changed respectively. By clicking the “Submit” button a new screen occurs.

Select type of data to display

Figure 3 shows the control window where you select which type of data that should be displayed. There are 6 different types of data:

  • Main Fuel elements
  • Main Ash Forming Elements
  • Trace Elements
  • Ash Components
  • Water Solubles
  • Ash Melting Temperature
Figure 3: Screen shot select type of data to display

Figure 3: Screen shot select type of data to display

In this example “Ash Melting Temperature” is selected.  By clicking the different radio boxes you are interested and thereafter the button “Update” the different types of data and parameters are displayed.

Display of data

In Figure 4 the screen for displaying data of the type main fuel properties is shown. For explanations on the use of these parameters see information of main parameters of solid biomass fuels. The data is displayed as tables with Min, Max, Mean and Median values of the parameters chosen. For some of the parameters the user can change between the bases d.b., d.a.f. or a.r. using the dropdown boxes.

Figure 4: Screen shot of average data table

Figure 4: Screen shot of average data table “Main fuel properties”

The tables of the other types of data are constructed in a similar way and are shown in Figure 5 to Figure 9.

Figure 5: Screen shot of average data table

Figure 5: Screen shot of average data table “Main Fuel elements”

Figure 6: Screen shot of average data table

Figure 6: Screen shot of average data table “Main Ash Forming Elements”

Figure 7: Screen shot of average data table

Figure 7: Screen shot of average data table “Trace Elements”

Figure 8: Example of average data table

Figure 8: Example of average data table “Ash melting Temp.”

Figure 9: Example of average data table

Figure 9: Example of average data table “Water Solutions”

Show dataset

By ticking the “Show dataset” radio button at the top row of each table, a new table occurs below the original table showing all single samples which are included in the summarized values (see Figure 10).  In this table also the four digit CEN classification number (link) as well as the internal identification number of the samples in the database are displayed. By clicking on the sample numbers in the table, all available information concerning the specific sample is displayed in a new window. This infromation is eg. analyses methods, origin and data of sampling , etc…

Figure 10: Screen shot of table revealing values for single samples in the database

Figure 10: Screen shot of table revealing values for single samples in the database

Show diagram and Compare to other samples

If the radio box “Show Graph” is ticked a diagram with Min, Mean and Max values is showed on the screen below the tables as well. (see Figure 11 at the bottom of this page)

Moreover, by choosing “Compare to” in the dropdown box shown in Figure 3 it is possible to compare the displayed dataset with a dataset of another specie. The resuts are are then summarized in the same table and diagram (if chosen) in comparison to the first selected. In the crenn shot in Figure 11 the originally chosen fuel “Spruce” is compared to “Olive”.

Figure 11: Screen shot of table and diagram using the options

Figure 11: Screen shot of table and diagram using the options “Show graph” and Compare to”