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Specifics of forced-convection heat transfer to supercritical water flowing upward in annular and bundle flow geometries
(2016-08-01)
Since annulus- and bundle-flow geometries impede coolant flow, heat transfer to the coolant would occur differently than in bare tubes. The main objective of this work is to propose and verity a universal method to accurately ...
Assessment of FLUENT CFD code as an analysis tool for SCW applications
(2012-08-01)
Chosen as one of six Generation‒IV nuclear-reactor concepts, SuperCritical Water-cooled Reactors (SCWRs) are expected to have high thermal efficiencies within the range of 45 ‒ 50% owing to the reactor‟s high pressures and ...
Study on heat transfer to supercritical water in application to SMRs
(2021-12-01)
The SuperSafe Reactor (SSR), a small modular reactor (SMR) concept with a supercritical water coolant, was subjected to a thermalhydraulic analysis and an economic analysis of its Levelized Unit of Energy Cost (LUEC). ...
Electrohydrodynamic enhancement of extraterrestrial capilliary pumped loops for nuclear applications
(2010-12-01)
This work examines electrohydrodynamic enhancement of capillary pump loops (CPL) for use in extraterrestrial nuclear applications. A capillary pump uses capillary action through a porous wick to transport heat and mass. ...
Conceptual design for a re-entrant type fuel channel for supercritical water-cooled nuclear reactors
(2011-04-01)
Current CANDU-type nuclear reactors use a once-through fuel-channel with an annulus gas insulating it from the moderator. The current reference design for a CANDU-type SuperCritical Water-Cooled Reactor (SCWR) is to eliminate ...
Study on supercritical fluids in an intermediate heat exchanger for an SCWR hydrogen cogeneration system
(2015-12-01)
SuperCritical Water-cooled Reactors (SCWRs) are one of six Generation-IV nuclear reactor concepts under development worldwide. SCWRs benefit from an increase in thermal efficiency due to the reactor coolant operating above ...
Second law analysis of a liquid cooled battery thermal management system for hybrid and electric vehicles
(2010-08-01)
As hybrid and electric vehicles continue to evolve there is a need for better battery
thermal management systems (BTMS), which maintain uniformity of operating
temperature of the batteries in the vehicles. This thesis ...
Heat and fluid flow analysis in a molten CuCl heat exchanger
(2009-10-01)
The Cu-Cl thermochemical cycle is a promising method to generate hydrogen
as a clean fuel for human use in the future. The cycle can be coupled to nuclear
reactors to supply its heat requirements. The cycle generates ...
Transient heat transfer analysis of heat exchangers in a Marnoch Heat Engine
(2009-12-01)
The Marnoch heat engine (MHE) is a new type of power generation device that is under research and development at the University of Ontario Institute of Technology. In this thesis, the transient heat transfer behaviour of ...
Experimental investigation of hydrogen production from ammonia decomposition
(2011-08-01)
This thesis examines the production of hydrogen from ammonia in a continuous flow, packed bed membrane reactor. The experimental study examines the effects of operating temperature, pressure, and residence time on hydrogen ...