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Przenikanie ciepla wewnątrz rury parabolicznej rynny systemu energii slonecznej
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ISBN10: 6209509711
ISBN13: 9786209509711
Publisher: Wydawnictwo Nasza Wiedza
Published: Jan 24 2026
Pages: 72
Weight: 0.24
Height: 0.17 Width: 6.00 Depth: 9.00
Language: Polish
ISBN13: 9786209509711
Publisher: Wydawnictwo Nasza Wiedza
Published: Jan 24 2026
Pages: 72
Weight: 0.24
Height: 0.17 Width: 6.00 Depth: 9.00
Language: Polish
Obecnie technologie wytwarzania energii elektrycznej za pomocą konwersji energii cieplnej stają się bardzo poszukiwane; oplacalną inwestycją jest skoncentrowana jednostka energii slonecznej wbudowana w elementy kolektora rynnowego. Celem niniejszej pracy jest przedstawienie nowatorskiego badania termicznego okrąglej rury absorbera/odbiornika parabolicznego systemu kolektorów slonecznych dla laminarnego i turbulentnego (model k-ɛ) przeplywu plynów. Korzystając z oprogramowania CFD ANSYS FLUENT, przeprowadzono dwuwymiarową symulację numeryczną zwiększonego przeplywu i wymiany ciepla powietrza w rurze odbiorczej PTC. Zarówno w przypadku przeplywu laminarnego, jak i turbulentnego, wyniki wykazaly znaczną poprawę wymiany ciepla, prędkości i spadku temperatury, a także przedstawiono wzór rozkladu temperatury na absorberze rurowym oraz przeanalizowano wektory prędkości, kontury ciśnienia i kontury temperatury. Spadek prędkości wzrasta, a spadek ciśnienia maleje wraz ze wzrostem odleglości wzdluż osi linii środkowej w kierunku linii wylotowej rury odbiornika. Przedstawiono efekt zwiększania strumienia ciepla w kierunku ścianki rury; powoduje to wzrost temperatury ścianki (z 350 do 390 K w przeplywie laminarnym i z 310 do 325 K w przeplywie turbulentnym).
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