In this paper, an application for the calculation of
energy prices and product energy costs in the pulp and
paper industry by using the Xi Plus expert system is
presented. The use of expert systems in the energy field
and also the Xi Plus expert system and its general
features are also discussed.
The application has been made after collecting data from
several sources. It runs in an IBM AT compatible
microcomputer therefore being easily used in mills. The
name of the application is PRODUCT ENERGY COST. It has a
three level structure: the mill level, the department
level and the main equipment level. Currently, the mill
level and, in the energy production area, the department
level (power plant) and the equipment level (boilers,
turbines) are used.
The application consists of four knowledge base groups.
Altogether there are 52 separate knowledge bases having
534 rules or demons. The knowledge base groups are: BASIC
DATA, ENERGY USE, ENERGY PRODUCTION and ENERGY COSTS.
The application can be used for various heat and
electrical energy price calculations or for energy cost
calculations for different pulp and paper products.
In this study, the energy prices for kraft pulp, TMP,
newsprint and fine paper in different operating
conditions and the associated energy costs of the
products are calculated. Also, in some cases a
sensitivity analysis is done.
The expert system is quite suitable for this type of
calculation and the method could be further developed for
specific industrial needs, e.g. to enhance the energy
|Place of Publication||Espoo|
|Publisher||VTT Technical Research Centre of Finland|
|Number of pages||56|
|Publication status||Published - 1991|
|MoE publication type||Not Eligible|
|Series||Valtion teknillinen tutkimuskeskus. Tiedotteita|
- pulping industry
- paper industry
- energy expenses
- energy production
- energy consumption
- expert systems