Modelling of thermal-hydraulic processes of geothermal energy extraction and utilization

• Autorzy: Nowak, W. , Stachel, A. A.
• Języki publikacji: EN

Abstrakty

EN

In the work presented have been selected problems concerned with modelling of thermal-hydraulic systems of extraction and utilization of geothermal energy for the purpose of heating. With respect to temperature of extraced geothermal water and a value of return temperature of municipal water, intependently from the system of geothermal energy extraction, there are two kinds of installation solutions in the geothermal power station on the geothermal water sideused, namely heat exchangers co-operating with peak-load boilers and heat exchangers with absorption heat pump and peak-load boilers. The first solution is used for higher temperatures of geothermal waters and the second one is used in the case of lower temperatures of extracted water. The applied solution depends also on the temperature of feeding and return municipal water, which directly results from applied design of district heating network, i.e. kind and way of connection of heat receivers. The method of assessment of the possibility of extraction and utilization of geothermal energy in selected distict heating networks, where qualitative regulation is used in a parallel combination of two groups of heat receivers and implementation of geothermal water heat exchangers has been also described. Presented methodology enables to conduct a comparative analysis of network designs with parallel connection of two different groups of heat receivers independently of applied systems of geothermal energy extraction. It can also be the basis for conducting economical analysis of comparable variants in both cases.

• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2001
• Tom: nr 109
• Strony: 45-57
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Nowak, W.

• Technical University of Szczecin, Faculty of Mechanical Engineering, Department of Heat Engineering, Szczecin, Poland

autor

Stachel, A. A.

• Technical University of Szczecin, Faculty of Mechanical Engineering, Department of Heat Engineering, Szczecin, Poland

Bibliografia

• [1] Nowak W.. Sobański R., Kabat M., Kujawa T.: Systems of acquisition and extraction of geathermal energy, Wyd. Politechniki Szczecińskiej, Szczecin 2000 (in Polish).
• [2] Nowak W. Stachel A.: influence of parameters of geothermal water on utilisation of the water in small healing systems. Acta Mechanica Slovaka. 3(1099), 187-192.
• [3] Nowak W, Stachel A.: Ecological estimation of work of a geothermal fixating plant, Proc. of the ASME-ZSITS Int. Thermal Science Seminar, Bled-Slovenia. 11-14.06.2000, 522-528.
• [4] Sobański R., Kabat M.. Nowak W.: How to acquire the. heat from the Earth, COIB, Warszawa 2000 (in Polish).
• [5] Szargut J., Ziebik A.: Fundamentals of thermal power engineering, (in Polish), PWN, Warszawa 1998 (in Polish).