Non-shutdown refueling calculation method suitable for pebble-bed high-temperature gas cooled reactor
A technology of high-temperature gas-cooled reactors and calculation methods, applied in reactors, complex mathematical operations, nuclear reactor monitoring, etc., can solve problems such as unsuitable pebble bed high-temperature gas-cooled reactors, and achieve safe and stable operation and reasonable design Effect
Pending Publication Date: 2022-07-15
HUANENG SHANDONG SHIDAO BAY NUCLEAR POWER CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] In view of the above characteristics of the pebble bed high temperature reactor, neither the refueling calculation method of the PWR nor the refueling calculation method of the heavy water reactor is suitable for the pebble bed high temperature gas-cooled reactor
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
[0039] The following will describe in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but should not be construed as a limitation on the present application. Based on the embodiments in this application, all other embodiments obtained by those o...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a non-shutdown refueling calculation method suitable for a pebble-bed high-temperature gas cooled reactor. The method comprises the following steps: determining refueling parameters influencing refueling management; in one shuffling period, enabling the difference value between the reactivity increment rho t1 of the high-temperature gas cooled reactor and the reactivity decrement rho t2 of the high-temperature gas cooled reactor to be rho = rho t2-rho t1 = 0, and enabling the average value of the effective multiplication factors to establish a matrix prediction model based on different shuffling periods and different control rod positions; according to the matrix prediction model, obtaining a first curve of rho = 0 in a two-dimensional space formed by a material pouring period and a control rod position; and determining a target shuffling period and a target control rod position according to an intersection point of the first curve and the second curve. One technical effect of the embodiment of the invention is that the design is reasonable, the target shuffling period and the target control rod position of the pebble-bed high-temperature gas cooled reactor during refueling without shutdown can be accurately calculated, and safe and stable operation of the high-temperature gas cooled reactor can be ensured.
Description
technical field [0001] The invention belongs to the technical field of high temperature gas-cooled reactor core physical calculation, and in particular relates to a non-stop refueling calculation method suitable for a pebble bed type high temperature gas-cooled reactor. Background technique [0002] In the field of civil nuclear power generation, the more common refueling methods include shutdown refueling (such as pressurized water reactor) and non-stop refueling (CANDU heavy water reactor). [0003] The pressurized water reactor has its own mature refueling calculation method and calculation software. The process of refueling calculation is to calculate the fuel assembly burnup at the fixed point of the reactor type coordinates, so as to determine the information such as the location of the fuel assembly that needs to be replaced. The refueling method of the heavy-water reactor with non-stop refueling is intermittent non-stop refueling, about two to three times a week. Be...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G21C17/06G21C17/10G06F17/18
CPCG21C17/063G21C17/10G06F17/18
Inventor 丰星李志容罗勇李海穹刘福成贺启超王栋栋刘峰峰孙福瑞韩芳蔡新可
Owner HUANENG SHANDONG SHIDAO BAY NUCLEAR POWER CO LTD