WORK PACKAGE 5

Tasks

Work Package 5 information

WP 5 leader: Wojciech Stanek/DSc

The comprehensive and systematic analysis of costs, resources management efficiency and environmental benefits resulting from the new boiler solution for power technology is the aim of the WP-5. To measure the global resource and environmental benefits the system thermodynamic analysis has to be applied. The proposed comprehensive approach include the following tools: exergetic cost (ExC), cumulative emissions calculus (CEm), life cycle
assessment (LCA), external environmental cost (EEC), thermo-economic analysis (TEA) and thermo-ecology (TEC). Analysis of the thermodynamic perfection and comparison with other boilers configuration is the aim of the task 5.1. The effectiveness of the boiler will be evaluated using the exergy analysis. The results from boiler modelling let to calculate the partial exergy losses in particular parts of the boiler. It can be the base for the evaluation of correctness of boilers components configurations as well as correctness of the thermodynamic parameters choice. The exergy analysis procedures planned in the project requires the elaboration of new algorithms because in the case of innovative configuration of the boiler the traditional balances are not valid. Task 5.1, based on the results of mathematical modelling performed in WP-4, will be focused directly on the boiler perfection without the analysis of interaction (direct and feedback) between the boiler and power plant components. For this reason the next step of evaluation should be thermo-economics (Task 5.2) and thermo-ecology (Task 5.3). Both analysis will be based on the results of direct exergy analysis obtained in the Task 5.1).
In the Task 5.2 different configuration of plants will be proposed and modelled, using
commercial software, for integration with the boiler. The integrated model of the boiler and the cycle of the plant will be the simulator for multi-variant Thermo-Economic analysis. All components of the analysed plants configurations are characterised by direct (immediate) and induced exergy losses. Such advanced exergy analysis let to evaluate the proposed boiler behaviour from the point of view of the whole power plant system. The developed models for Thermo-Economic analysis let to determine the proper system operational parameters and the proper system configuration from the point of view of rational resources management. The analysis of partial exergy losses also let to allocation of CO2 emissions between components. From the point of view of non-renewable natural resources and from the point of view of ecological aspects the global analysis that take into account the whole life cycle of installation has to be applied. Results of Tasks 5.1 and 5.2 will be then additionally the base for global thermoecological and LCA analysis planned in the Task 5.3.
The global resource and environmental effects have to be investigated from the following
points of view: depletion of constrained non-renewable natural resources (e.g. primary energy of fuels), rejection of waste aggressive products to the natural environment leading to the external losses or emission of green house gasses (GHG).
The method taking into account the global management of resources will be applied. In this field thermo-ecology, that combine cumulative calculus and exergy analysis, is proposed.
This general method can investigate the influence of any production system from the point of view of its influence on the depletion on non-renewable natural resources. Moreover thermoecology takes into account the effects of depletion resulting from emissions of waste products to the environment and the whole life cycle of the plant.
The investigated technology aiming mainly at reduction of GHG emissions influences also
rejection of other aggressive substances to the natural environment, but should not result in excessive increase of these emissions. For this reason the cumulative emissions of other waste products have to be simultaneously controlled. To compare the impacts of different wastes on environment the external cost method will be applied.
The next system environmental assessment will be the investigation of the propose
technology on GHG emissions. The authors of the proposal will apply the method for
determination of cumulative emission of GHG that can be the measure of so called thermoclimatic cost.

The proposed project is devoted to the new power technology. This group of technology is very resource and environmental sensitive. For this reason the direct analysis of the proposed boiler behaviour is not enough.
System exergy and environmental analysis is required. The realisation of the WP5 is strongly connected with the WP4 and additionally is the development of WP4 devoted to the mathematical model for boiler simulation. The results of WP4 obtained by means of modelling are the base for the realisation of all tasks planned in WP5