Sensitivity-based stability evaluation of closed piping networks

• Autorzy: Fu Y. , Cai Y. , Wu K.
• Języki publikacji: EN

Abstrakty

EN

Aiming at a closed-loop water system of HVAC engineering, the authors put forward an evaluation method of systems' stability based on sensitivity. It has three evaluating indexes: [alfa] - the summation of flow changes in other subcircuits influenced by resistance change in a certain subcircuit [Beta] - the summation of flow changes in a certain sub circuit influenced by resistance changes in other subcircuits; [gamma] - average [Beta] (or [alfa]) value of each subcircuit, reflecting the strength of regulating interference between subcircuits. The method is used to analyze the stability of a reverse return system (RRS) and a direct return system (DRS). The DRS subcircuit farthest from the heat source and the middle RRS are the least stable. Stability of the whole RRS is inferior to that of the DRS.

Słowa kluczowe

EN

closed-loop water system; sensitivity; stability; evaluation

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2007
• Tom: Vol. 11, No 3
• Strony: 197--202
• Opis fizyczny: Bibliogr. 2 poz., rys., tab.

Twórcy

autor

Fu Y.

autor

Cai Y.

autor

Wu K.

• Wuhan University of Science and Technology, 199 Xiongchu Street, 430070 Wuhan, People's Republic of China,

Bibliografia

• [1] Liu J, Jiang J and Zheng D 2002 Theory 01 the Fluid Network, China Coal Industry Publishing House, Beijing
• [2] Wu Y and Yu Y 1996 Heating Ventilation Air Conditioning 29 (6) 74