18-05-2011

Podstawowe parametry kolektorów słonecznych

Foto: Ritter Solar / ESTIF

W odpowiedzi na pytanie naszego czytelnika dotyczące podstawowych pojęć związanych z parametrami kolektorów słonecznych publikujemy odpowiedź naszego eksperta z firmy Immergas.

- Powierzchnia apertury -

Powierzchnia apertury: pod pojęciem apertury rozumie się powierzchnię przez, którą promieniowanie słoneczne przedostaje się do wnętrza kolektora. W przypadku kolektora płaskiego jest to powierzchnia prześwitu szyby solarnej. W przypadku kolektorów próżniowych bez zwierciadła powierzchnię apertury wyznacza się sumując powierzchnie wynikające ze średnicy wewnętrznej rury próżniowej.

W przypadku kolektora ze zwierciadłem jako powierzchnię apertury przyjmuje się powierzchnię wynikającą z zewnętrznych wymiarów zwierciadła. W kolektorze słonecznym niemożliwe jest przetworzenie większej ilości energii od tej, która dostaje się do powierzchni jego apertury.

- Powierzchnia czynna -

Powierzchni czynna to ta, na którą pada promieniowanie słoneczne – iloczyn wymiarów niezasłoniętej części absorbera.

- Powierzchnia całkowita -

Powierzchnia całkowita absorbera to wielkość całego absorbera (część powierzchni absorbera ze względów np. konstrukcyjnych może być zakryta przez elementy obudowy) – jest to iloczyn wymiarów absorbera (długość x szerokość).

- Powierzchnia brutto kolektora -

Powierzchnia brutto kolektora to powierzchnia całego kolektora łącznie z jego obudowami – jest to iloczyn szerokości i długości wymiarów zewnętrznych całego kolektora.

Piotr Marciniak, Immergas Polska, www.immergas.com.pl

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    Można powiedzieć, że odpowiadający na zadane pytania w sposób rzetelny i z pełną wiedzą o kolektorach słonecznych wyjaśniają na co szczególnie zwracać uwagę przy ich zakupie. W tym przypadku mamy do czynienia z najwyższym stopniem wiedzy. Jako potencjalny użytkownik już wiem, że przy zakupie mam zwracać szczególną uwagę na jego powierzchnie. Dla Pana Piotra Marciniaka jako znawcy tematu nieważne są takie parametry jak: - sprawność kolektorów - uzysk energetyczny - straty cieplne - temperatura stagnacji - ciśnienie maksymalne - opór przepływu - materiał z jakiego został wykonany, itp. Gratuluję doboru ekspertów.
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