| Title | Evaluation of operation of the geothermal heat plant supplied the mean -Enthalpy geothermal water and co-operating with heat receivers connected in series |
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| Authors | Wladyslaw Nowak, Aleksander A. Stachel |
| Year | 2003 |
| Conference | European Geothermal Conference |
| Keywords | low-temperature water, heating plant |
| Abstract | One of the conditions for rationalisation of geothermal water use is to enable the most efficient heat transfer between geothermal water and municipal water. In district heating networks utilising geothermal heat it is important to bring the return water temperature from the heat installations of recipients to the lowest level, so that it could determine the temperature of injected geothermal water [2,3]. In order to fulfil that condition it is advised to implement predominantly low-temperature heat receivers or at least combination of recipients having high-temperature installations with recipients having low-temperature installations, which enables effective cooling of municipal water [1,5-12]. Authors carried out analyses to determine the influence of parallel and series connection of high-temperature with low-temperature heating installations on improvement the utilisation of geothermal energy in a geothermal heat plant. The main purpose of this work was to evaluate how much the application of the low-temperature heating systems has an effect on the influence on the degree of the geothermal energy in the geothermal heat plant, which supplements the heat distribution network supplying two groups of heat receivers having the distinct shares in a heat consumption. These studies are very interesting because concern the possibility of utilisation the low- and mean-enthalpy geothermal water for heating purposes. In this work there are presented the results of analysis of utilisation the geothermal energy in a geothermal heat plant supplied the mean-enthalpy geothermal water. This heat plant equipped in geothermal heat exchanger, absorption heat pump and peak load boiler co-operates with low- and high-temperature heating systems connected in series. |