This paper reports on preliminary numerical experiments in optimizing coolant flows in continuous casting of steel with respect to multiple objectives. For this purpose, Differential Evolution for Multiobjective Optimization (DEMO) coupled with a reliable numerical simulator of the casting process was applied. The algorithm parameters were initially tuned to balance between the quality of the e...

R & D Journal of the South African Institution of Mechanical Engineering 2012,28,25-30 http://www.saimeche.org.za (open access) © SAIMechE All rights reserved. 25 The Pebble Bed Modular Reactor (PBMR) is a Generation IV graphite-moderated helium cooled nuclear reactor developed in South Africa from the German Arbeitsgemeinschaft Versuchreaktor (AVR). After decommissioning of the AVR plant, radi...

Methanol is recognized as a potential renewable energy source for its uses in gasoline blending and direct methanol fuel cells. This work aims to develop a simulation model that can adequately represent and industrial real-life methanol reactor from a petrochemical plant at steady-state conditions. The main purpose is to provide a tool for investigating the effects of inlet temperatures, coolan...

Microwaves have been widely used in the treatment of different materials. However, the existing adjustable power thermostatic reactors cannot be used to analyze materials characteristics under microwave effects. In this paper, a microwave thermostatic chemical reactor for processing liquid materials is proposed, by controlling the velocity of coolant based on PLC (programmable logic controller)...

A testing strategy and corresponding test plan have been presented for the two proposed US candidate breeder blankets: (1) a helium-cooled solid breeder concept with ferritic steel structure and Be neutron multiplier, but without a fully independent TBM and (2) a dual-coolant helium-cooled ferritic steel structure with self-cooled LiPb breeding zone that uses a flow channel insert as MHD and th...

The performance of proton-exchange membrane fuel cell cooling system using coolant flow channels enhanced with baffles was numerically investigated. To do this, the maximum temperature of the cooling plate, temperature uniformity and also pressure drop along the flow channels were compared for different cases associated with number of baffles and their dimensions inside the channels. The govern...

It is found in many film-cooling experiments and computational analyses that a heated surface is employed to simulate the actual film-cooling condition with a cooling jet and a hot main flow. Considering that the dominant energy passage in turbine airfoil film cooling is always from the hot combustion gas flowing into the airfoil, employing a heated surface to simulate the actual film cooling c...

The effect of car cooler mileage and coolant on thermal performance was experimentally investigated. water–ethylene-glycol-based with mileages 0 km, 50,000 100,000 km circulated in new used coolers respectively. heating cooling time coolants, heat transfer rate, were evaluated. a the achieved 41 min 30 s, which is 8 less compared to cooler. When operating temperature reached earlier, engine ran...

An internal combustion engine requires a proper cooling system to release heat from the engine. The working fluid or coolant in water-cooled impacts overall radiator performance. Several studies show that nanopowder can increase thermal performance of base fluids, although pressure drops significantly. This paper describes experimental study motorcycle using ZnO with distilled water and commerc...