Abstract:
Disclosed is a fuel element for a boiling water reactor, comprising a plurality of fuel rods (1 to 3) which are mounted in a plurality of spacers (11 to 18) placed at a distance from each other in the axial direction of the fuel element. At least one (1, 2) of said fuel rods has a reduced length. Deflecting element (48) are arranged at least in the top portion (B) of the fuel element in order to improve dryout behavior. The inventive fuel element also comprises means for reducing the loss of pressure caused in said portion (B) by the deflecting elements so as to improve thermohydraulic stability and shutdown behavior.
Abstract:
Ein Brennelement für einen Siedewasserreaktor enthält eine Mehrzahl von Brennstäben (1 bis 3), die in einer Mehrzahl von voneinander in Axialrichtung des Brennelements beabstandeten Abstandhaltern (11 bis 18) gelagert sind und von denen zumindest ein Brennstab (1, 2) teillang ist. Zumindest im oberen Bereich (B) des Brennelementes sind zur Verbesserung des Dryout-Verhaltens Ablenkelemente (48) angeordnet. Gemäss der Erfindung sind Mittel zur Verringerung des durch die Wanddicke der Abstandhalterstege bzw. die Ablenkelemente (48) in diesem Bereich (B) verursachten Druckverlustes vorgesehen, um die thermohydraulische Stabilität und das Abschaltverhalten zu verbessern.
Abstract:
In order to provide a device for the lateral scanning of napless areas of fabric webs which operates automatically with great accuracy and reliability even at high web speeds while being of relatively simple construction, it is proposed to cause the fabric web (7) to pass over a guide roller (11) and to cause the napless areas (9, 12) of the fabric web (7) to be scanned by means of photodetectors (2-6) consisting of transmitters and receivers, in which the scanning beams are directed tangentially to the guide roller (11) and thus to the fabric web (7) at its deflection point.
Abstract:
The aim of the invention is to design a machine for inspecting textile fabrics, in particular curtains, using an inspection station (2) with an inspection board, a control position (1) for the operator and a cloth-processing station (3), so that visual checking of the cloth on the inspection board (5) is considerably facilitated and cloth feed through the processing station (3) is as uniform as possible. In order to achieve this aim, it is proposed that a holding zone (18) for the cloth to be processed be located between the inspection station (2) and the processing station (3), movement of the textile fabric through the inspection station (2) being discontinuous and movement through the processing station (3) being continuous, both being controlled from the operator's control position (1).