| Client/Year | Project description |
| Dalkia Łódź 2010 |
Feasibility study of the
construction of heat accumulator tanks at Dalkia Łódź EC-3
(200MWe/830MWt CHP) and EC-4 (210MWe/860MWt CHP) . Technical
possibilities were analysed of applying heat accumulators at the
existing DH connection systems of EC-3 and EC-4, and the cooperation of
heat sources in Łodz DH system including heat accumulation facilities
(heat allocation). Optimum capacity of the heat accumulators was
determined in the range of 10 000 m3 to 30 000 m3. A technical and economic model of Łódź DH system was prepared, taking into account relation between the operation of EC-3, EC-4 and the heat accumulator. Economic analysis was made for various alternatives of heat accumulators’ operation and the cooperation of both CHP plants in ŁOdz DH system. |
| EC Białystok S.A.(E.On Group) 2007 |
Technical and economic concept for
DH supply, including construction of DH part and heat accumulator tank. The objective of the study was to analyse several technical alternatives for modernization of internal DH part at EC Białystok. Analyses of the pumping system and DH water piping were made. The influence of heat accumulator tank on levelling daily heat demand amplitude was analysed, as well as the reduction of costs of participation in balancing market and the impact of introducing varied power prices at different times of day. Heat accumulator capacities analysed were from 5000 m3 to 20000 m3 , with the indication of 12000m3 as the best choice. Rebuilding of the pumping station is realised in 2008. Heat accumulator is under construction. |
| Vattenfall Heat Poland 2005 |
Feasibility study of installing
heat accumulator tank at Żerań CHP Plant, Warsaw. The study investigated the possibilities of incorporating a heat accumulator in the existing DH system at Żerań CHP Plant. Selection of optimal heat accumulator capacity was done in range of 10 000-40 000 m3. Economic analysis was made for a number of operation modes. |
| Vattenfall Heat Poland 2005 |
Feasibility study of installing
heat accumulator tank at Siekierki CHP Plant, Warsaw. The study investigated the possibilities of incorporating a heat accumulator in the existing DH system at Siekierki CHP Plant. Analysed heat accumulator capacity was 15 000-40 000 m3. Economic analysis was made for a number of operation modes. Tender specification for heat accumulator technical design was prepared.Project was realised and heat accumulator is operating since the 2nd quarter of 2009. |
| Elektrociepłownie Warszawskie
S.A. 2003-2004 |
Study on EW S.A. (present VHP)
development until 2020. The work included analysis of development directions for VHP heat sources until 2020, taking into account internal conditions as well as the changing external factors (such as market conditions, environmental requirements etc.) For the purpose of the study, a uniform dynamic technical and economic model of all heat sources was prepared, including all VHP heat sources, split to generation units operating in Warsaw DH system (SPEC district heating network) and Pruszkow CHP. The model allows comparing the analysed development alternatives. The technical model included efficiency data of the existing and new equipment, minimum and maximum generation capacities of turbines and boilers, fuel parameters, emissions and furnace waste production, use of absorbent, water and other consumable media in the existing and new flue gas cleaning installation as well as a dynamic O&M model, taking into account operation hours, investment costs and O&M costs. As a result of the work, possible investment alternatives were presented, including environmental installations for the existing facilities as well as construction of new generation facilities, such as new boilers, new coal-fired CHP units of various capacities, including a large supercritical unit, combined cycle CHP units of 60-250MWe at various locations, small biomass or multi-fuel CHP units. Basing on the prepared model of DH main lines, limitations of DH networks were analysed as well as the DH network modernisation and extension alternatives for the analysed options of heat allocation between heat sources. Feasibility of incorporation of heat accumulator (capacity 5000-20 000 m3) was also analysed. |
