The present work has been carried out with an aim to have a thorough understanding of the mechanism of blister formation and the resulting degradation in the serviceability of the component under simulated in-reactor condition of pressure and temperature. A 220 MWe Indian PHWR Zr-2.5Nb pressure tube spool piece of 165 mm length was charged with a homogeneous hydrogen concentration using lithium...

SuperCritical Water Oxidation (SCWO) process is investigated at the Institut of Technical Chemistry, ITC-CPV. The objectives were to determine destruction efficiencies of model compounds and industrial waste effluents and to study the feasability of the SCWO process. Two continuous SCWO bench scale plants are operated: a pipe reactor and a transpiring wall reactor system (design data: T = 630 °...

The formation of syngas (H2 and CO) from methane in a rhodium coated monolith is studied as an example for the simulation of reactive ow in a partial oxidation reactor. A tube wall catalytic reactor, which serves as a model for a single pore of the monolithic catalyst, is simulated. The simulation is carried out using a two-dimensional ow eld description coupled with detailed reaction mechanism...

Since its discovery in the 1920s, the Fischer-Tropsch Synthesis (FTS) has undergone periods of rapid development and periods of inaction. Within ten years of the discovery, German companies were building commercial plants. The construction of these plants stopped about 1940 but existing plants continued to operate during WWII. Two types of reactors were used in the German commercial plants: the...

Fuel channel pressure tubes are critical components at the heart of the CANDU reactor core which require periodic inspection to demonstrate continued fitness for service. A CANDU reactor consists of a large tank, the calandria, which is penetrated by several hundred horizontally mounted fuel channels containing natural uranium fuel bundles. The fuel channel consists of a 104 mm inside diameter,...

in this research, a cold model of internally circulating fluidized bed is investigated. the aim is to find the effects of some of the operating parameters on the performance of the reactor. experiments were carried out in a glass column (30 mm i.d. and 25 cm height) with a centrally located draft tube (11 mm i.d. and 5 or 7 cm height). the bed was loaded with white silica particles (dp = 0.15 -...