{"id":1334,"date":"2021-01-20T12:28:44","date_gmt":"2021-01-20T10:28:44","guid":{"rendered":"https:\/\/ric.ijs.si\/?p=1334"},"modified":"2026-05-06T13:33:58","modified_gmt":"2026-05-06T11:33:58","slug":"exercise-3","status":"publish","type":"post","link":"https:\/\/ric.ijs.si\/en\/exercise-3\/","title":{"rendered":"Exercise No. 3: Fuel temperature coefficient of reactivity"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"1334\" class=\"elementor elementor-1334\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-dade1f1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dade1f1\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-147d356\" data-id=\"147d356\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-04713e8 elementor-widget elementor-widget-heading\" data-id=\"04713e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">Purpose of experiment <\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ca6c02 elementor-widget elementor-widget-text-editor\" data-id=\"4ca6c02\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A negative fuel temperature reactivity feedback effect is of key importance in inherently safe reactor design. The purpose of the experiment is to measure the fuel temperature reactivity coefficient of the TRIGA reactor, i.e. the reactivity change due to a change in the fuel temperature.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7e0f14 elementor-widget elementor-widget-heading\" data-id=\"b7e0f14\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">Outcome \/ What you will learn<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f297edc elementor-widget elementor-widget-text-editor\" data-id=\"f297edc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tStudents will:\n<br><br>\n<ol>\n \t<li>\n<h6 style=\"font-size: 16px;\">discuss the physical principles governing fuel temperature reactivity feedback<\/h6>\n<\/li>\n \t<li>\n<h6 style=\"font-size: 16px;\">observe the response of the reactivity, fuel temperature and reactor power, in a sequence of swift changes in reactivity, caused by the movement of a control rod<\/h6>\n<\/li>\n \t<li>\n<h6 style=\"font-size: 16px;\">understand the feedback effect of the fuel temperature on the reactivity and the power of a reactor \u2013 this being a prerequisite for understanding the temperature and power reactivity defects.<\/h6>\n<\/li>\n<\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7801795 elementor-widget elementor-widget-heading\" data-id=\"7801795\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">Execution<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c69507f elementor-widget elementor-widget-text-editor\" data-id=\"c69507f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>After discussion on the physical principles governing the fuel temperature reactivity effects, students determine the fuel temperature coefficient of reactivity as a function of the fuel temperature, and the power coefficient of reactivity as a function of power.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-56443b3\" data-id=\"56443b3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-59261bc gallery-spacing-custom elementor-widget elementor-widget-image-gallery\" data-id=\"59261bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-gallery\">\n\t\t\t<div data-carousel-extra='{\"blog_id\":1,\"permalink\":\"https:\\\/\\\/ric.ijs.si\\\/exercise-3\\\/\"}' id='gallery-1' class='gallery galleryid-1334 gallery-columns-1 gallery-size-featured'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"59261bc\" data-elementor-lightbox-title=\"Exercise03-1\" data-elementor-lightbox-description=\"Exercise03-1\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTMzNiwidXJsIjoiaHR0cHM6XC9cL3JpYy5panMuc2lcL3dwLWNvbnRlbnRcL3VwbG9hZHNcL0V4ZXJjaXNlMDMtMS5wbmciLCJzbGlkZXNob3ciOiI1OTI2MWJjIn0%3D\" href='https:\/\/ric.ijs.si\/wp-content\/uploads\/Exercise03-1.png'><img fetchpriority=\"high\" decoding=\"async\" data-attachment-id=\"1336\" data-orig-file=\"https:\/\/ric.ijs.si\/wp-content\/uploads\/Exercise03-1.png\" data-orig-size=\"1240,926\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;keywords&quot;:&quot;Array&quot;}\" data-image-title=\"Exercise03-1\" data-image-description=\"&lt;p&gt;Exercise03-1&lt;\/p&gt;\" data-medium-file=\"https:\/\/ric.ijs.si\/wp-content\/uploads\/Exercise03-1-300x224.png\" data-large-file=\"https:\/\/ric.ijs.si\/wp-content\/uploads\/Exercise03-1-1024x765.png\" width=\"642\" height=\"300\" src=\"https:\/\/ric.ijs.si\/wp-content\/uploads\/Exercise03-1-642x300.png\" class=\"attachment-featured size-featured\" alt=\"Exercise03-1\" srcset=\"https:\/\/ric.ijs.si\/wp-content\/uploads\/Exercise03-1-642x300.png 642w, https:\/\/ric.ijs.si\/wp-content\/uploads\/Exercise03-1-750x350.png 750w\" sizes=\"(max-width: 642px) 100vw, 642px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8a94272 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8a94272\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-90ab40b\" data-id=\"90ab40b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-e6135bf\" data-id=\"e6135bf\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b7cbed5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b7cbed5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4c851e7\" data-id=\"4c851e7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Purpose of experiment A negative fuel temperature reactivity feedback effect is of key importance in inherently safe reactor design. The purpose of the experiment is to measure the fuel temperature reactivity coefficient of the TRIGA reactor, i.e. the reactivity change<\/p>","protected":false},"author":1,"featured_media":1336,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[40],"tags":[],"class_list":["post-1334","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-exercise","","tg-column-two"],"_links":{"self":[{"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/posts\/1334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/comments?post=1334"}],"version-history":[{"count":11,"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/posts\/1334\/revisions"}],"predecessor-version":[{"id":6749,"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/posts\/1334\/revisions\/6749"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/media\/1336"}],"wp:attachment":[{"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/media?parent=1334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/categories?post=1334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ric.ijs.si\/en\/wp-json\/wp\/v2\/tags?post=1334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}