1.0RSEhttps://www.rse-web.it/en/Barbarahttps://www.rse-web.it/en/author/barbara/rich600338<blockquote class="wp-embedded-content" data-secret="kJdVHmDMe3"><a href="https://www.rse-web.it/en/reports/numerical-modeling-of-ejectors/">Numerical modeling of ejectors</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.rse-web.it/en/reports/numerical-modeling-of-ejectors/embed/#?secret=kJdVHmDMe3" width="600" height="338" title="“Numerical modeling of ejectors” — RSE" data-secret="kJdVHmDMe3" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.rse-web.it/wp-includes/js/wp-embed.min.js </script> This report presents a study on the main numerical modeling techniques of supersonic ejectors that can be used in heat pumps. The selected lumped parameter, computational fluid dynamics models, which are widely validated in literature references, allow us to analyze, with a multi-scale approach, how the working fluid, geometry and boundary conditions influence ejectors performance and the thermodynamic cycle of heat pumps.