Browsing II. Eurasian conference nuclear science and its application : proceedings, 16-19 September, 2002. Almaty, Kazakhstan by All Authors "Adalıoğlu, Ulvi"
(National Nuclear Center of the Republic of Kazakhstan / Institute of Nuclear Physics, 2003) Arıkan, H. İbrahim; Baykal, Adnan; Adalıoğlu, Ulvi; Yavuz, Hasbi; TAEK-ÇNAEM
Free convection cooling processes are often used in nuclear technology as well as in the vertical channel type structures of some systems, in electronic circuit board cooling and many other fields. TR-2 Reactor at Cekmece Nuclear Research and Training Centre (CNRTC) is a pool type research reactor with plate type fuel elements. The narrow vertical cooling channels of this reactor have a width of 2.1 mm. In case of an accident or a loss of cooling event, the heat in these channels are transfered by natural convection. An experimental setup was constructed to simulate the TR-2 cooling channels. Dummy fuel plates were heated by a DC source and temperature measurements were taken by copper-constantan thermocouples situated at different points. Cooling fluid is air. For several different powers and channel gaps the temperatures had been measured. The average Nu and Ra numbers were calculated for the channel and compared with the numerical results.