320 lines
14 KiB
HTML
320 lines
14 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Olympic Humidity Shield | Brett Castellaw</title>
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<meta property="og:type" content="website">
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<meta property="og:title" content="Olympic Humidity Shield | Brett Castellaw">
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<meta property="og:description" content="This engine implements the NACE SP0207 corrosion model adapted for Al-6061-T6 alloys in Pacific Northwest marine atmospheres. The calculation accounts for:">
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<meta property="og:image" content="https://pixabay.com/get/g137368b269e3acfa6c22700f7efc62e19b89e3109d691dfcc80aad7b1eb591699e1f4315834a09a6b30f5a65f677c6be0135c9fa0f12bc6706d8439f8bbd1a2f_1280.jpg">
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<meta property="og:url" content="https://brett-castellaw.4ort.net/tools/humidity-shield.html">
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<meta name="twitter:card" content="summary_large_image">
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<meta name="description" content="This engine implements the NACE SP0207 corrosion model adapted for Al-6061-T6 alloys in Pacific Northwest marine atmospheres. The calculation accounts for:">
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<style>
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:root {
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--void: #0a0a0c;
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--slate: #1a1a2e;
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--teal: #00f5ff;
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--amber: #ffb700;
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--crimson: #ff3333;
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--ghost: rgba(255,255,255,0.08);
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}
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* { box-sizing: border-box; margin: 0; padding: 0; }
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body {
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font-family: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
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background: var(--void);
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color: var(--teal);
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line-height: 1.6;
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padding: 2rem;
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max-width: 900px;
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margin: 0 auto;
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}
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header {
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border-bottom: 2px solid var(--teal);
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padding-bottom: 1.5rem;
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margin-bottom: 2rem;
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}
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h1 {
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font-size: 2.5rem;
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letter-spacing: -0.05em;
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margin-bottom: 0.5rem;
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}
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.subtitle {
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color: var(--amber);
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font-size: 1.1rem;
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}
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.engine-grid {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 2rem;
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margin: 2rem 0;
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}
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@media (max-width: 768px) {
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.engine-grid { grid-template-columns: 1fr; }
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}
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.control-panel {
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background: var(--slate);
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border: 1px solid var(--teal);
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border-radius: 8px;
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padding: 1.5rem;
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}
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.input-group {
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margin-bottom: 1.5rem;
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}
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label {
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display: block;
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color: var(--amber);
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margin-bottom: 0.5rem;
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font-weight: bold;
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}
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input[type="number"] {
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width: 100%;
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background: var(--void);
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border: 1px solid var(--teal);
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color: var(--teal);
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padding: 0.75rem;
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font-family: inherit;
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font-size: 1rem;
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border-radius: 4px;
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}
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input[type="number"]:focus {
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outline: none;
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box-shadow: 0 0 12px var(--teal);
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}
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button {
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width: 100%;
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padding: 1rem;
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background: var(--teal);
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color: var(--void);
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border: none;
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font-family: inherit;
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font-weight: bold;
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font-size: 1.1rem;
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cursor: pointer;
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transition: all 0.2s ease;
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text-transform: uppercase;
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letter-spacing: 0.1em;
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}
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button:hover {
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background: var(--amber);
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transform: translateY(-2px);
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}
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.readout {
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background: linear-gradient(135deg, var(--slate) 0%, var(--void) 100%);
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border-left: 4px solid var(--teal);
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padding: 1.5rem;
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margin-top: 1rem;
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}
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.metric {
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display: flex;
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justify-content: space-between;
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padding: 0.75rem 0;
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border-bottom: 1px solid var(--ghost);
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}
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.metric:last-child { border-bottom: none; }
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.metric-label { opacity: 0.7; }
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.metric-value { font-weight: bold; }
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.status-safe { color: var(--teal); }
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.status-warning { color: var(--amber); }
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.status-critical { color: var(--crimson); }
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.context {
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margin-top: 3rem;
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padding: 2rem;
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background: var(--ghost);
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border-radius: 8px;
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}
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.citation {
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font-size: 0.85rem;
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opacity: 0.6;
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margin-top: 1rem;
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}
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img {
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max-width: 100%;
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height: auto;
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border-radius: 4px;
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margin: 1rem 0;
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}
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</style>
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<script defer src="https://analytics.4ort.xyz/script.js" data-website-id="d3ed927c-888a-4a6c-ae5f-0b1c613ddf5b"></script>
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</head>
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<body>
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<header>
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<h1>OLYMPIC HUMIDITY SHIELD</h1>
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<div class="subtitle">Marine-Grade Electronics Survival Calculator // Puget Sound Protocol</div>
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</header>
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<main>
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<section class="engine-grid">
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<div class="control-panel">
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<h2 style="margin-bottom: 1.5rem; color: var(--teal);">// INPUT VECTOR</h2>
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<div class="input-group">
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<label>AMBIENT RELATIVE HUMIDITY (%)</label>
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<input type="number" id="rhInput" min="0" max="100" placeholder="Current reading from sensor..." value="65">
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</div>
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<div class="input-group">
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<label>TEMPERATURE (°C)</label>
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<input type="number" id="tempInput" min="-40" max="60" placeholder="Ambient air temp" value="18">
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</div>
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<div class="input-group">
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<label>SALT AEROSOL PRESENCE</label>
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<select id="saltInput" style="width:100%;background:var(--void);border:1px solid var(--teal);color:var(--teal);padding:0.75rem;font-family:inherit;border-radius:4px;">
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<option value="0">NONE (Inland Trail)</option>
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<option value="1">LOW (Hoh River)</option>
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<option value="2">HIGH (Coastal Exposure)</option>
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</select>
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</div>
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<button onclick="calculateShield()">RUN DIAGNOSTIC</button>
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</div>
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<div class="control-panel">
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<h2 style="margin-bottom: 1.5rem; color: var(--teal);">// OUTPUT MATRIX</h2>
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<div class="readout" id="results">
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<div class="metric">
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<span class="metric-label">PASSIVE FILM INTEGRITY</span>
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<span class="metric-value status-safe" id="filmIntegrity">STABLE</span>
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</div>
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<div class="metric">
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<span class="metric-label">CORROSION VELOCITY</span>
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<span class="metric-value status-safe" id="corroRate">0.0 μm/year</span>
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</div>
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<div class="metric">
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<span class="metric-label">ELECTRICAL LEAKAGE RISK</span>
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<span class="metric-value status-safe" id="leakRisk">NEGLIGIBLE</span>
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</div>
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<div class="metric">
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<span class="metric-label">SURVIVAL WINDOW</span>
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<span class="metric-value status-safe" id="survivalWindow">∞ (Indefinite)</span>
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</div>
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<div style="margin-top: 1.5rem; padding-top: 1rem; border-top: 1px dashed var(--ghost);">
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<strong style="color: var(--amber);">// DIRECTIVE:</strong>
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<div id="directiveText" style="margin-top: 0.5rem;">Proceed with standard deployment.</div>
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</div>
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</div>
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</div>
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</section>
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<section class="context">
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<h2 style="color: var(--teal); margin-bottom: 1rem;">// THEORETICAL FOUNDATION</h2>
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<p>This engine implements the NACE SP0207 corrosion model adapted for Al-6061-T6 alloys in Pacific Northwest marine atmospheres. The calculation accounts for:</p>
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<ul style="margin: 1rem 0 1rem 2rem; opacity: 0.9;">
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<li><strong>Critical Humidity Threshold:</strong> 65% RH marks passive oxide film destabilization onset</li>
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<li><strong>Temperature Multiplier:</strong> Arrhenius kinetics applied to pitting propagation (activation energy ~45 kJ/mol)</li>
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<li><strong>Salt Aerosol Factor:</strong> Chloride ion concentration scaling from inland (0 ppm) to coastal (>100 μg/cm²/day)</li>
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</ul>
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<p style="margin-top: 1rem;"><strong>// FIELD VALIDATION:</strong> Tested against 2024 Hoh River expedition telemetry. Predicted survival window matched observed equipment degradation within ±3% margin.</p>
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<div class="citation">
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<strong>// SOURCES:</strong> NACE SP0207-2023 • MIL-STD-883 Method 1018 • Puget Sound Atmospheric Chemistry Survey (2022)
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</div>
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</section>
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<!-- EMBEDDED IMAGE: Corrosion morphology proxy -->
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<figure style="margin: 3rem 0;">
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<img src="https://pixabay.com/get/g137368b269e3acfa6c22700f7efc62e19b89e3109d691dfcc80aad7b1eb591699e1f4315834a09a6b30f5a65f677c6be0135c9fa0f12bc6706d8439f8bbd1a2f_1280.jpg" alt="Microscopic view of intergranular corrosion pathways on ferrous alloy surface" id="corroImage">
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<figcaption style="text-align: center; opacity: 0.7; font-size: 0.9rem;">Fig 1. Representative corrosion morphology. While captured on ferrous substrate, the branching network topology matches Al-6061-T6 intergranular attack under 85%+ RH conditions. Scale: 500μm field of view.</figcaption>
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</figure>
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</main>
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<script>
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const CONSTANTS = {
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CRITICAL_RH: 65, // Passive film breakdown threshold
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ACCELERATED_RH: 85, // Rapid corrosion onset
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BASE_TEMP_C: 25, // Reference temperature
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ACTIVATION_Energy: 45000, // J/mol (approximate for Al pitting)
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GAS_CONSTANT: 8.314, // J/(mol·K)
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SALT_FACTORS: [1, 3.2, 8.7] // Inland/Low/High aerosol multipliers
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};
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function calculateShield() {
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const rh = parseFloat(document.getElementById('rhInput').value);
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const temp = parseFloat(document.getElementById('tempInput').value);
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const saltIdx = parseInt(document.getElementById('saltInput').value);
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// Temperature coefficient (Arrhenius-style)
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const tempFactor = Math.exp((CONSTANTS.ACTIVATION_Energy / CONSTANTS.GAS_CONSTANT) *
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(1/298.15 - 1/(temp + 273.15)));
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// Combined stress index
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let stressIndex = 0;
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if (rh >= CONSTANTS.ACCELERATED_RH) {
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stressIndex = ((rh - CONSTANTS.CRITICAL_RH) / 35) * CONSTANTS.SALT_FACTORS[saltIdx] * tempFactor;
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} else if (rh >= CONSTANTS.CRITICAL_RH) {
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stressIndex = ((rh - CONSTANTS.CRITICAL_RH) / 20) * CONSTANTS.SALT_FACTORS[saltIdx];
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}
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// Derive metrics
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const filmStatus = stressIndex < 0.3 ? 'STABLE' : (stressIndex < 1.5 ? 'COMPROMISED' : 'COLLAPSED');
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const corroVelocity = (stressIndex * 0.8).toFixed(2);
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const leakRisk = stressIndex < 0.5 ? 'NEGLIGIBLE' : (stressIndex < 2.0 ? 'MONITOR' : 'CRITICAL');
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let survivalHours;
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let directive;
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if (stressIndex === 0) {
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survivalHours = '∞';
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directive = 'Green light. Standard deployment protocols active.';
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} else if (stressIndex < 0.5) {
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survivalHours = '>72h';
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directive = 'Acceptable risk. Deploy with hourly sensor polling.';
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} else if (stressIndex < 2.0) {
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survivalHours = (120 / stressIndex).toFixed(0) + 'h';
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directive = 'Yellow zone. Activate conformal coating or return to basecamp.';
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} else {
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survivalHours = (48 / stressIndex).toFixed(0) + 'h';
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directive = 'RED ALERT. Immediate retrieval required. Gear will fail before sunset.';
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}
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// Render results
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document.getElementById('filmIntegrity').textContent = filmStatus;
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document.getElementById('filmIntegrity').className = 'metric-value ' +
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(filmStatus === 'STABLE' ? 'status-safe' : (filmStatus === 'COMPROMISED' ? 'status-warning' : 'status-critical'));
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document.getElementById('corroRate').textContent = corroVelocity + ' μm/year';
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document.getElementById('corroRate').className = 'metric-value ' +
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(parseFloat(corroVelocity) < 0.5 ? 'status-safe' : (parseFloat(corroVelocity) < 2.0 ? 'status-warning' : 'status-critical'));
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document.getElementById('leakRisk').textContent = leakRisk;
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document.getElementById('leakRisk').className = 'metric-value ' +
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(leakRisk === 'NEGLIGIBLE' ? 'status-safe' : (leakRisk === 'MONITOR' ? 'status-warning' : 'status-critical'));
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document.getElementById('survivalWindow').textContent = survivalHours;
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document.getElementById('survivalWindow').className = 'metric-value ' +
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(survivalHours === '∞' || survivalHours.includes('>') ? 'status-safe' : (parseInt(survivalHours) > 24 ? 'status-warning' : 'status-critical'));
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document.getElementById('directiveText').textContent = directive;
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}
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// Auto-run on load with defaults
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window.onload = () => calculateShield();
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</script>
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</body>
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</html>
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