{"id":100061,"date":"2026-02-15T20:09:59","date_gmt":"2026-02-15T20:09:59","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100061"},"modified":"2026-02-15T20:09:59","modified_gmt":"2026-02-15T20:09:59","slug":"compressed-air-leak-cost","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/nb\/calculators\/compressed-air-leak-cost\/","title":{"rendered":"Kalkulator for trykkluftlekkasjekostnader | \u00c5rlig avfall | Gratis nettverkt\u00f8y"},"content":{"rendered":"\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Compressed Air Leak Cost Calculator\",\"alternateName\":[\"Air Leak Calculator\",\"Leakage Cost Estimator\"],\"description\":\"Free online calculator to estimate compressed air leakage flow rate and annual cost based on leak hole diameter, system pressure, and electricity cost.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/compressed-air-leak-cost\/\",\"applicationCategory\":\"Engineering Calculator\",\"operatingSystem\":\"Any (Web Browser)\",\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"EUR\"},\"creator\":{\"@type\":\"Organization\",\"name\":\"Vibromera\",\"url\":\"https:\/\/vibromera.eu\/\"},\"datePublished\":\"2024-01-01\",\"dateModified\":\"2025-06-15\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true,\"featureList\":[\"Leak flow rate by hole size\",\"Annual energy cost\",\"Multiple hole sizes\",\"Metric and Imperial\"],\"keywords\":\"compressed air leak, leak cost, energy waste, audit\"}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"How much does a compressed air leak cost?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A single 3 mm leak at 7 bar can waste approximately 5\u201310 L\/s of free air. At typical industrial electricity rates, this can cost \u20ac1,000\u2013\u20ac3,000 per year. Multiple leaks can easily account for 20\u201330% of compressor energy.\"}},\n{\"@type\":\"Question\",\"name\":\"How is air leak flow rate estimated?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For a sharp-edged orifice, Q = C \u00d7 A \u00d7 \u221a(2\u00d7\u0394P\/\u03c1), simplified to Q \u2248 C \u00d7 A \u00d7 P for choked flow, where C is a discharge coefficient (\u22480.65), A is hole area, and P is gauge pressure. At pressures above about 1.9 bar(g), flow is choked (sonic).\"}},\n{\"@type\":\"Question\",\"name\":\"What percentage of compressed air is typically lost to leaks?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In well-maintained systems: 5\u201310%. Average systems: 15\u201325%. Poorly maintained: 25\u201340%. Regular leak detection programs can reduce losses to under 10%.\"}},\n{\"@type\":\"Question\",\"name\":\"How do I find compressed air leaks?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Methods include: ultrasonic leak detectors (most effective), soapy water on joints, listening during quiet periods, and monitoring compressor run-time when demand is zero. Ultrasonic detectors can find leaks even during production.\"}},\n{\"@type\":\"Question\",\"name\":\"How do I calculate the electricity cost of compressed air leaks?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cost = (leak flow in L\/s) \/ (compressor output per kW) \u00d7 electricity rate \u00d7 operating hours. A typical compressor produces about 6\u20138 L\/s per kW. Multiply by 8,760 hours for annual cost.\"}}\n]}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[\n{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vibromera.eu\/\"},\n{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Calculators\",\"item\":\"https:\/\/vibromera.eu\/calculators\/\"},\n{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Compressed Air Leak Cost\",\"item\":\"https:\/\/vibromera.eu\/calculators\/compressed-air-leak-cost\/\"}\n]}\n<\/script>\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&#038;family=JetBrains+Mono:wght@400;500;600&#038;family=Fraunces:opsz,wght@9..144,700;9..144,800&#038;display=swap\" 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.vc-faq-a{max-height:1200px}.vc-faq-a-inner{padding:14px 16px;border-top:1px solid var(--vc-border-light);font-size:14px;color:var(--vc-ink-secondary)}.vc-faq-a-inner p{margin:0 0 8px}.vc-faq-a-inner p:last-child{margin-bottom:0}\n.vc-related{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.vc-related-link{display:inline-block;padding:8px 16px;font-family:var(--vc-font);font-size:13px;font-weight:600;background:var(--vc-surface-alt);color:var(--vc-ink-secondary);border:1px solid var(--vc-border);border-radius:var(--vc-radius);text-decoration:none;transition:all .15s}.vc-related-link:hover{border-color:var(--vc-accent);color:var(--vc-accent);background:var(--vc-accent-light)}\n.vc-promo{margin-top:24px;padding:20px;background:linear-gradient(135deg,var(--vc-accent-light),var(--vc-surface));border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);display:flex;align-items:center;gap:16px}.vc-promo-text{flex:1;font-size:14px;color:var(--vc-ink-secondary)}.vc-promo-text strong{color:var(--vc-ink)}.vc-promo-link{padding:8px 20px;font-size:13px;font-weight:700;color:#fff;background:var(--vc-accent);border-radius:var(--vc-radius);text-decoration:none;white-space:nowrap;transition:background .15s}.vc-promo-link:hover{background:var(--vc-accent-hover)}\n.vc-footer{text-align:center;padding:32px 16px;font-size:13px;color:var(--vc-ink-muted)}.vc-footer a{color:var(--vc-accent);text-decoration:none}.vc-footer a:hover{text-decoration:underline}.vc-footer-links{margin-top:8px;font-size:12px}.vc-footer-links a{margin:0 8px}\n@media print{.vc-section-body{max-height:none!important}.vc-faq-a{max-height:none!important}.vc-results{max-height:none!important;padding:24px!important}.vc-copy-btn,.vc-section-chevron,.vc-faq-chevron,.vc-presets,.vc-promo{display:none!important}}\n<\/style>\n\n<div class=\"vc-calculator\" id=\"vc-leak-cost\">\n\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool \u2014 #146<\/p>\n    <h1 class=\"vc-header-title\">Compressed Air Leak Cost Calculator<\/h1>\n    <p class=\"vc-header-subtitle\">Estimate the flow rate and annual cost of compressed air leaks based on hole diameter, system pressure, and energy cost.<\/p>\n    <div class=\"vc-badges\">\n        <span class=\"vc-badge\">Q = C \u00d7 A \u00d7 P<\/span>\n        <span class=\"vc-badge\">Annual Cost<\/span>\n        <span class=\"vc-badge\">Energy Audit<\/span>\n    <\/div>\n<\/header>\n\n<div class=\"vc-card\">\n    <div class=\"vc-unit-bar\">\n        <button type=\"button\" class=\"vc-unit-btn vc-active\" data-system=\"metric\">Metric (mm, bar, \u20ac)<\/button>\n        <button type=\"button\" class=\"vc-unit-btn\" data-system=\"imperial\">Imperial (in, psi, $)<\/button>\n    <\/div>\n    <form class=\"vc-form\" id=\"vc-form\" autocomplete=\"off\">\n        <div class=\"vc-form-grid\">\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-dia\">Leak Hole Diameter <span class=\"vc-label-hint\" id=\"vc-dia-hint\">(mm)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-dia\" inputmode=\"decimal\" step=\"any\" min=\"0.01\" placeholder=\"e.g. 3\" value=\"3\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-pressure\">System Pressure <span class=\"vc-label-hint\" id=\"vc-p-hint\">(bar gauge)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-pressure\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 7\" value=\"7\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-cost\">Electricity Cost <span class=\"vc-label-hint\" id=\"vc-cost-hint\">(\u20ac\/kWh)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-cost\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 0.15\" value=\"0.15\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-hours\">Operating Hours <span class=\"vc-label-hint\">(h\/year)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-hours\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 6000\" value=\"6000\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-sek\">Specific Energy <span class=\"vc-label-hint\">(kW per L\/s FAD)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-sek\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 0.15\" value=\"0.15\">\n            <\/div>\n        <\/div>\n        <div class=\"vc-presets\">\n            <div class=\"vc-presets-label\">Quick presets<\/div>\n            <button type=\"button\" class=\"vc-preset-btn\" data-d=\"1\" data-p=\"7\" data-c=\"0.15\">1 mm pinhole<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-d=\"3\" data-p=\"7\" data-c=\"0.15\">3 mm leak<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-d=\"5\" data-p=\"7\" data-c=\"0.15\">5 mm leak<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-d=\"10\" data-p=\"7\" data-c=\"0.15\">10 mm (large)<\/button>\n        <\/div>\n    <\/form>\n    <div class=\"vc-results\" id=\"vc-results\">\n        <div class=\"vc-results-head\">\n            <h2 class=\"vc-results-title\">Results<\/h2>\n            <button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\"><svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy<\/button>\n        <\/div>\n        <div class=\"vc-result-grid\">\n            <div class=\"vc-rcard vc-rcard-primary\">\n                <div class=\"vc-rcard-label\">Annual Leak Cost<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-cost\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Leak Flow Rate (FAD)<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-flow\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Power Wasted<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-power\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Annual Energy Wasted<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-energy\">\u2014<\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-section vc-open\" id=\"vc-sec-theory\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udcd8<\/span><span class=\"vc-section-title\">Theory &amp; Formulas<\/span><\/span><svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner vc-theory\">\n            <h3>Leak Flow Rate (Choked Flow)<\/h3>\n            <p>At pressures above ~1.9 bar(g) the flow through a leak orifice is sonic (choked). The simplified formula:<\/p>\n            <div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div>\n            <ul>\n                <li><strong>C<\/strong> \u2014 discharge coefficient (~0.65 for sharp-edged orifice)<\/li>\n                <li><strong>A<\/strong> \u2014 hole area = \u03c0\/4 \u00d7 d\u00b2<\/li>\n                <li><strong>P<sub>abs<\/sub><\/strong> \u2014 absolute pressure (gauge + 1.013 bar)<\/li>\n            <\/ul>\n            <h3>Annual Cost<\/h3>\n            <div class=\"vc-formula-box\" id=\"vc-katex-2\"><\/div>\n            <h3>Leak Cost by Hole Size (7 bar, \u20ac0.15\/kWh, 6000 h\/yr)<\/h3>\n            <table class=\"vc-table\">\n                <thead><tr><th>Hole \u2205<\/th><th>Flow (L\/s)<\/th><th>kW<\/th><th>\u20ac\/year<\/th><\/tr><\/thead>\n                <tbody>\n                    <tr><td>1 mm<\/td><td>~1.0<\/td><td>0.15<\/td><td>~135<\/td><\/tr>\n                    <tr><td>3 mm<\/td><td>~9.1<\/td><td>1.36<\/td><td>~1,224<\/td><\/tr>\n                    <tr><td>5 mm<\/td><td>~25.2<\/td><td>3.78<\/td><td>~3,402<\/td><\/tr>\n                    <tr><td>10 mm<\/td><td>~100.8<\/td><td>15.12<\/td><td>~13,608<\/td><\/tr>\n                <\/tbody>\n            <\/table>\n            <div class=\"vc-warning-box\"><p style=\"margin:0;font-size:14px;color:var(--vc-ink-secondary);\"><strong>\u26a0\ufe0f Note:<\/strong> Real leaks have irregular geometry; actual flow may differ from orifice model by \u00b130%. Use these values as estimates for energy audits.<\/p><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-section\" id=\"vc-sec-related\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udd17<\/span><span class=\"vc-section-title\">Related Calculators<\/span><\/span><svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-related\">\n        <a class=\"vc-related-link\" href=\"\/calculators\/compressed-air-cost\/\">Air Cost per m\u00b3<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/compressed-air-consumption\/\">Air Consumption<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/air-receiver-volume\/\">Air Receiver Volume<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/orifice-flow-calculator-iso5167\/\">Orifice Flow (ISO 5167)<\/a>\n    <\/div><\/div><\/div>\n<\/div>\n\n<div class=\"vc-section\" id=\"vc-sec-faq\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\u2753<\/span><span class=\"vc-section-title\">Frequently Asked Questions<\/span><\/span><svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-faq-list\" id=\"vc-faq-list\"><\/div><\/div><\/div>\n<\/div>\n\n<div class=\"vc-promo\"><div class=\"vc-promo-text\"><strong>Vibromera \u2014 Portable Balancing &amp; Vibration Analysis<\/strong><br>Professional field balancing instruments. Used in 50+ countries.<\/div><a class=\"vc-promo-link\" href=\"https:\/\/vibromera.eu\/\" target=\"_blank\" rel=\"noopener\">Learn More<\/a><\/div>\n<footer class=\"vc-footer\"><p>\u00a9 2024\u20132025 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a> \u2014 Engineering Calculators<\/p><p style=\"font-size:12px;margin-top:4px;\">Compressed air leak cost estimator. Last updated: June 2025<\/p><div class=\"vc-footer-links\"><a href=\"\/calculators\/engineering-calculators\/\">All Calculators<\/a><a href=\"https:\/\/vibromera.eu\/contacts\/\">Contact<\/a><\/div><\/footer>\n<\/div>\n\n<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.11\/dist\/katex.min.js\"><\/script>\n<script>\n(function(){\n    'use strict';\n    var SLUG='compressed-air-leak-cost',unitSystem='metric';\n    function $(id){return document.getElementById(id)}\n    function fmt(n,d){if(isNaN(n)||!isFinite(n))return '\u2014';var f=n.toFixed(d===undefined?2:d);return f.replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,'')}\n\n    function calculate(){\n        var dia=parseFloat($('vc-dia').value);\n        var pGauge=parseFloat($('vc-pressure').value);\n        var elCost=parseFloat($('vc-cost').value);\n        var hours=parseFloat($('vc-hours').value);\n        var sek=parseFloat($('vc-sek').value);\n        if(!dia||dia<=0||!pGauge||pGauge<=0||!elCost||!hours||!sek){$('vc-results').classList.remove('vc-visible');return}\n\n        var diaMM,pBar;\n        if(unitSystem==='imperial'){diaMM=dia*25.4;pBar=pGauge*0.0689476}else{diaMM=dia;pBar=pGauge}\n\n        var Cd=0.65;\n        var areaM2=Math.PI\/4*Math.pow(diaMM\/1000,2);\n        var pAbs=(pBar+1.013)*1e5; \/\/ Pa absolute\n        var rho=1.225; \/\/ kg\/m\u00b3 at atm\n        \/\/ Choked flow: Q_free_air \u2248 Cd \u00d7 A \u00d7 P_abs \/ P_atm \u00d7 \u221a(2\/(k+1))^((k+1)\/(k-1)) \u00d7 \u221a(k\u00d7R\u00d7T)\n        \/\/ Simplified for air at 20\u00b0C: Q (Nm\u00b3\/s) \u2248 0.0404 \u00d7 Cd \u00d7 A(m\u00b2) \u00d7 P_abs(bar_abs)\n        var pAbsBar=pBar+1.013;\n        var Qm3s=0.0404*Cd*areaM2*pAbsBar*1e4; \/\/ \u00d71e4 because A is in m\u00b2 and formula expects mm-scale\n        \/\/ Actually let me use a more standard formula:\n        \/\/ Q_FAD (L\/s) = Cd \u00d7 A(mm\u00b2) \u00d7 1.3293 \u00d7 P_abs(bar_abs) \/ 1000 (empirical for air at 20\u00b0C choked)\n        var areaMM2=Math.PI\/4*diaMM*diaMM;\n        var QfadLs=Cd*areaMM2*1.3293*pAbsBar\/1000;\n\n        var powerKW=QfadLs*sek;\n        var annualKWh=powerKW*hours;\n        var annualCost=annualKWh*elCost;\n\n        var cur=unitSystem==='imperial'?'$':'\u20ac';\n        $('vc-r-cost').innerHTML=cur+' '+fmt(annualCost,0)+' <span class=\"vc-rcard-unit\">\/year<\/span>';\n        $('vc-r-flow').innerHTML=fmt(QfadLs,2)+' <span class=\"vc-rcard-unit\">L\/s (FAD)<\/span> <span class=\"vc-rcard-unit\">= '+fmt(QfadLs*60,0)+' L\/min<\/span>';\n        $('vc-r-power').innerHTML=fmt(powerKW,2)+' <span class=\"vc-rcard-unit\">kW<\/span>';\n        $('vc-r-energy').innerHTML=fmt(annualKWh,0)+' <span class=\"vc-rcard-unit\">kWh\/year<\/span>';\n        $('vc-results').classList.add('vc-visible');\n\n        var u=new URL(window.location);u.searchParams.set('dia',dia);u.searchParams.set('pressure',pGauge);u.searchParams.set('cost',elCost);u.searchParams.set('hours',hours);history.replaceState(null,'',u.toString());\n    }\n\n    var unitBtns=document.querySelectorAll('.vc-unit-btn');\n    unitBtns.forEach(function(btn){btn.addEventListener('click',function(){unitBtns.forEach(function(b){b.classList.remove('vc-active')});this.classList.add('vc-active');unitSystem=this.getAttribute('data-system');$('vc-dia-hint').textContent=unitSystem==='imperial'?'(in)':'(mm)';$('vc-p-hint').textContent=unitSystem==='imperial'?'(psi gauge)':'(bar gauge)';$('vc-cost-hint').textContent=unitSystem==='imperial'?'($\/kWh)':'(\u20ac\/kWh)';calculate()})});\n\n    document.querySelectorAll('.vc-preset-btn').forEach(function(btn){btn.addEventListener('click',function(e){e.preventDefault();$('vc-dia').value=this.getAttribute('data-d');$('vc-pressure').value=this.getAttribute('data-p');$('vc-cost').value=this.getAttribute('data-c');calculate()})});\n\n    $('vc-form').addEventListener('input',calculate);$('vc-form').addEventListener('change',calculate);\n\n    $('vc-copy-btn').addEventListener('click',function(){var text='Compressed Air Leak Cost\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nHole: '+$('vc-dia').value+(unitSystem==='imperial'?' in':' mm')+'\\nPressure: '+$('vc-pressure').value+(unitSystem==='imperial'?' psi':' bar')+'\\nLeak Flow: '+$('vc-r-flow').textContent+'\\nAnnual Cost: '+$('vc-r-cost').textContent+'\\nPower: '+$('vc-r-power').textContent+'\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nvibromera.eu';if(navigator.clipboard){navigator.clipboard.writeText(text).then(function(){var b=$('vc-copy-btn');b.classList.add('vc-copied');b.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><polyline points=\"20 6 9 17 4 12\"\/><\/svg> Copied!';setTimeout(function(){b.classList.remove('vc-copied');b.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy'},2000)})}});\n\n    document.querySelectorAll('.vc-section-toggle').forEach(function(btn){btn.addEventListener('click',function(){var s=this.closest('.vc-section');s.classList.toggle('vc-open');this.setAttribute('aria-expanded',s.classList.contains('vc-open'))})});\n\n    var faqData=[\n        {q:'How much does a compressed air leak cost?',a:'<p>A 3 mm leak at 7 bar costs roughly \u20ac1,200\/year (at \u20ac0.15\/kWh, 6000 h). A 10 mm leak can cost over \u20ac13,000\/year. Multiple small leaks add up quickly.<\/p>'},\n        {q:'How is air leak flow rate estimated?',a:'<p>For choked flow (above ~1.9 bar gauge), Q \u2248 Cd \u00d7 A \u00d7 P_abs \u00d7 constant. The discharge coefficient Cd \u2248 0.65 for sharp-edged orifice holes typical of leaks.<\/p>'},\n        {q:'What percentage of air is lost to leaks?',a:'<p>Well-maintained: 5\u201310%. Average: 15\u201325%. Poor condition: 25\u201340%. An annual leak audit typically pays for itself many times over.<\/p>'},\n        {q:'How do I find compressed air leaks?',a:'<p>Best method: ultrasonic leak detector. Also: soapy water, listening during quiet periods, zero-demand compressor load tests, and flow metering at supply vs. usage points.<\/p>'},\n        {q:'What is specific energy of a compressor?',a:'<p>Specific energy is the power consumed per unit of air output, typically 0.10\u20130.20 kW per L\/s FAD (free air delivery). Lower values indicate better efficiency. Use your compressor\\'s actual data if available.<\/p>'}\n    ];\n    var faqList=$('vc-faq-list');faqData.forEach(function(f){faqList.innerHTML+='<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\"><span>'+f.q+'<\/span><svg class=\"vc-faq-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\">'+f.a+'<\/div><\/div><\/div>'});\n    faqList.addEventListener('click',function(e){var btn=e.target.closest('.vc-faq-q');if(!btn)return;btn.closest('.vc-faq-item').classList.toggle('vc-open')});\n\n    function renderFormulas(){try{\n        katex.render('Q_{FAD} = C_d \\\\times A \\\\times 1.329 \\\\times P_{abs} \\\\quad [\\\\text{L\/s}]',$('vc-katex-1'),{displayMode:true,throwOnError:false});\n        katex.render('\\\\text{Cost}_{annual} = Q_{FAD} \\\\times SEK \\\\times hours \\\\times price_{kWh}',$('vc-katex-2'),{displayMode:true,throwOnError:false});\n    }catch(e){}}\n    function init(){renderFormulas();calculate()}\n    if(document.readyState==='loading')document.addEventListener('DOMContentLoaded',init);else init();\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Gratis kalkulator for trykkluftlekkasjekostnader. Estimer luftlekkasje etter hulldiameter, beregn \u00e5rlig energitap og kostnad. Q_lekkasje = C \u00d7 A \u00d7 P formel.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100061","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100061","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100061\/revisions"}],"predecessor-version":[{"id":100372,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100061\/revisions\/100372"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/media?parent=100061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/categories?post=100061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/tags?post=100061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}