The company developed a freeze-seal isolation technique on the five-inch pipework, allowing the defect to be isolated and rectified without the need to repeat a significant venting routine for the reactor primary circuit
Controlled flow rate goes to the primary circuit
. The bypassed fluid can be used for work functions in secondary circuits without affecting the primary one.
The primary circuit
is provided by the company's LLUStream SDSL and the back up circuit is supplied by its IPStream ADSL.
Number 1 reactor has been closed since January 25 following a leak of resin particles in the primary circuit
around the nuclear reactor.
The stop valve package consists of bellows sealed stop valves on the steam inlet and condensate outlet connections enable isolation of the primary circuit
. A strainer protects the temperature control valve.
Steam generators enable heat from the water in the primary circuit
to be transferred to the secondary circuit.
Power to businesses and homes failed at 1.30pm and by 1.45pm electricity had been restored to premises by switching them from the problem primary circuit
on to others.
The preconditioning plant has twin trommel screens mounted over the surge bin, and the wet-treatment plant is fitted with 20 MDL cone concentrators in the primary circuit
, 16 cone concentrators in the secondary circuit, and 144 MDL spiral starts in the final circuit.
The function of either is to make and break the primary circuit
winding of the spark-coil, causing expansion and abrupt collapse of lines of magnetic force across the secondary winding of the coil, inducing a flow of current to, and a spark across the spark plug point-gap just before the engine piston reaches top dead-center during the fuel/air compression stroke.
The primary circuit
during the test was pressurized to 13.7 MPa (more than 111 percent of the operating pressure) and heated up to 120degC.
In the primary circuit
of HTR-PM, [sup.60]Co on the surfaces of fuel elements, graphite reflectors, graphite reactor internals, and metal reactor internals will adsorb on the graphite dust, which is generated through abrasion or corrosion effect when the fuel elements flow in the primary circuit
and is playing a significant role in contributing to the source term of HTR-PM .
where [rho] = 1000kg /[m.sup.3] is water density in secondary circuit, [eta] = 0,7 is coefficient of device usage, [H.sub.p]--pump head and [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII]--total water flow in primary circuit
(991 / s = 360[m.sup.3] / h).