<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
        xmlns:news="http://www.google.com/schemas/sitemap-news/0.9"
        xmlns:xhtml="http://www.w3.org/1999/xhtml"
        xmlns:mobile="http://www.google.com/schemas/sitemap-mobile/1.0"
        xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"
        xmlns:video="http://www.google.com/schemas/sitemap-video/1.1">
  <url>
    <loc>https://engivault.com/</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>daily</changefreq>
    <priority>1.0</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://engivault.com/forum</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>daily</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://engivault.com/login</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
  </url>
  <url>
    <loc>https://engivault.com/register</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
  </url>

  {/* Calculator Pages */}
  <url>
    <loc>https://engivault.com/calculators/thermodynamics</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/heat-exchanger</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/fluid-flow</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/structural</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/electrical</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/unit-converter</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/mechanical</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/combustion</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/air-psychrometrics</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/economics</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
   <url>
    <loc>https://engivault.com/calculators/hydraulic-calculations</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/heat-transfer-calculations</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/equipment-sizing</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/calculators/drawing-tools</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>

  {/* Knowledge Base Pages */}
  <url>
    <loc>https://engivault.com/knowledge/mechanical</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/electrical</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/civil</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  {/* Add more specific knowledge base topic URLs as they are created, e.g.: */}
  {/*
  <url>
    <loc>https://engivault.com/knowledge/mechanical/thermodynamics</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  */}
  <url>
    <loc>https://engivault.com/knowledge/electrical/circuits</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/electrical/power-systems</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/electrical/electronics</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/electrical/control-systems</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/civil/structural</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/civil/transportation</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/civil/environmental</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/civil/geotechnical</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process/heat-transfer</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process/thermodynamics</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process/mass-transfer</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process/fluid-mechanics</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process/calculations/equipment-sizing</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process/calculations/hydraulic</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process/fundamentals</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process/rules-of-thumb</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process/deliverables</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/process/deliverables/pfd</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/mechanical/dynamics</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/mechanical/machine-design</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/mechanical/hvac</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/mechanical/materials</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://engivault.com/knowledge/mechanical/vibrations</loc>
    <lastmod>2025-06-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
</urlset>
