000021472 001__ 21472
000021472 005__ 20170522124356.0
000021472 04107 $$aeng
000021472 046__ $$k2017-05-15
000021472 100__ $$aVilági, F.
000021472 24500 $$aESTIMATION OF MINOR LOSSES IN A NATURAL CIRCULATION HELIUM LOOP

000021472 24630 $$n23.$$pEngineering Mechanics 2017
000021472 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021472 506__ $$arestricted
000021472 520__ $$2eng$$aThe article deals with steady flow of highly compressed helium in a natural circulation loop. To describe the mechanism of circulation, it is necessary to properly determine the losses which the functionality of the entire facility depends on. The biggest losses in the system are minor losses for the cooler and the heater. This article describes the way of defining minor losses in the elements at non-isothermal flow. The derived equations are used for evaluation of measurement of the cooler’s minor loss (DHR), with installed input power of 500 kW, which is a crucial part of the experimental helium loop. The results are compared with calculations published in referenced literature. The process described leads to a derivation of minor loss coefficient of the DHR (i.e. the element with non-isothermal flow). The results obtained are necessary to develop an 1D model of flow in the loop.

000021472 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021472 653__ $$aNatural circulation, Helium loop, Minor losses, State equation.

000021472 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021472 720__ $$aVilági, F.$$iMlynár, P.$$iRidzoň, F.$$iMlkvik, M.$$iOlšiak, R.$$iUrban, F.$$iKnížat, B.
000021472 8560_ $$ffischerc@itam.cas.cz
000021472 8564_ $$s979949$$uhttps://invenio.itam.cas.cz/record/21472/files/1030.pdf$$yOriginal version of the author's contribution in proceedings, page 1030, section FLU.
000021472 962__ $$r21225
000021472 980__ $$aPAPER