A detailed physical configuration of this SMR was established based on the limited information available for the mPower reactor. This is an important step in the development of the simulation model. Three mathematical models were combined to simulate the control dynamics. A lumped-parameter approximation of fuel-to-coolant heat transfer is combined with vessel upper plenum and lower plenum coolant masses to represent the core power and heat transfer dynamics. A nodalized moving boundary steam generator model balances mass, momentum, and energy for the sub-cooled, saturated, and superheated flow regimes.
Global development in small modular reactors
Small modular reactor - Wikipedia
Typical designs have power levels between 10 and MWe. SMRs have advantages in safety, design, waste and fuel management, and environmental footprint, among other features. In this regard, there were many significant developments in North America, the United Kingdom, and elsewhere in the world relating to SMR technologies in the latter half of As reported on the energy.
Safety, Proliferation, and Economics Assessment of Small Modular Reactors
The federal government is gearing up for a big bet on small modular nuclear reactors, or SMRs. The governments of Alberta, Saskatchewan, Ontario and New Brunswick have also thrown their support behind SMRs, signing a memorandum of understanding last summer. There is a real need for new electrical and energy technologies in remote communities. Diesel fuel is the current standard for off-the-grid communities and mines, causing air pollution, service disruptions and environmental liability. But whether small modular nuclear reactors are up to the task of replacing diesel is another question.