Hot water used in the South African domestic sector is mostly heated by in-tank electrical resistance heaters. These so-called "geysers" are the major contributors to the undesirable high morning and afternoon peaks imposed ...

The choice of thermodynamic cycle configuration is a vital first step in the development of a new nuclear power plant. Various cycle configurations for High Temperature Gas Reactor power conversion are under investigation. ...

Inherent safety is claimed for gas-cooled pebble bed reactors, such as the South African Pebble Bed Modular Reactor (PBMR), as a result of its design characteristics, materials used, fuel type and physics involved. Therefore, ...

Large thermal-fluid network simulations are usually conducted for fixed input steady-state conditions without accounting for statistical variations of these variables. This is not realistic and gives no indication of ...

Pebble Bed Modular Reactors are advanced nuclear reactors and are being developed to possess inherent safety and reliability. This is achieved by utilizing a sequence of passive thermal storage and heat transfer mechanisms, ...

It is currently estimated that South Africa will be running out of surplus electrical capacity by the year 2007. This estimate is based on the current growth in economy that primarily includes the electrification of ...

The emergence of closed-loop Brayton cycle power plants, such as the PBMR, resulted in the need to simulate start-up transients for industrial multi-stage axial flow compressors operating at subsonic conditions. This implies ...

The largest percentage of sanitary hot water used in South Africa is heated by means of electrical resistance heaters. This is one of the major contributing factors to the undesirable high morning and afternoon peaks ...

In order to simulate the thermal-fluid performance of a pebble bed reactor such as the PBMR, heat transfer phenomena in packed beds must be characterized. In the pseudo-heterogeneous simulation approach that is often ...