The HTMR100 nuclear plant power source is a 100 MWth high temperature helium cooled pebble bed modular reactor. It features a Once-Through-Then-Out (OTTO) fuel cycle. The reactor is versatile enough to accommodate various types of fuelling schemes such as the uranium, uranium/thorium or plutonium/thorium based fuel cycles.
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The HTMR100 core is a cylindrical cavity formed by graphite blocks (the reflector) within a Reactor Pressure Vessel (RPV). This cylindrical cavity is filled with pebble fuel, forming what it is called a “pebble bed”, which is ultimately responsible for the power generation. Two independent Reactivity Control Systems are inserted in the reflector and are able to control the reactivity of the core, as well as shut it down indefinitely.
The electrical energy demand has almost doubled since the 1990’s putting strain on all countries to keep up with growing industries and increasing populations. With greenhouse effects being reported across the globe and becoming a growing concern, safe and environmentally friendly nuclear power is key to meet the ever increasing electrical demand faced by all countries.
HTMR’s vision and final goal is to commercialize a thorium based nuclear fuel, using plutonium (Reactor Grade) as a driver. This fuel will maximize the use of thorium, produce energy from plutonium inventories already existing in nuclear waste, and maximize the conversion of thorium and in-situ burning of uranium-233. However, this is only a long-term goal.
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