.. título: Calculadora de carga térmica de BTU
.. slug: calculadora-de-carga-calor-btu
.. fecha: 2025-12-26 15:00:00 UTC
.. etiquetas: redes, calculadora, herramienta
.. categoría: Calculadoras
.. enlace:
.. descripción: Calcule la carga de calor de la habitación y el aumento de temperatura a partir de la salida de BTU
.. tipo: texto
<style>
    .calc-container {
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</style>
<div class="calc-container">
<div class="calc-header">
<h2>Calculadora de carga de calor BTU</h2>
<p>Calcule el aumento de temperatura en una habitación en función de la producción de BTU de equipos, servidores o sistemas HVAC.</p>
<div class="input-grid">
<div class="input-group">
<label for="width">Ancho de la habitación (pies):</label>
<input id="width" min="1" step="0.1" type="number" value="10"/>
</div>
<div class="input-group">
<label for="length">Longitud de la habitación (pies):</label>
<input id="length" min="1" step="0.1" type="number" value="20"/>
</div>
<div class="input-group">
<label for="height">Altura de la habitación (pies):</label>
<input id="height" min="1" step="0.1" type="number" value="10"/>
</div>
<div class="input-group">
<label for="btuload">Carga total de BTU (BTU/h):</label>
<input id="btuload" min="0" step="100" type="number" value="20000"/>
</div>
</div>
<div class="button-container">
<button class="calc-button" onclick="btu()">Calcular</button>
</div>
<div class="help-text">
<strong>¿Qué son los BTU?</strong>La Unidad Térmica Británica (BTU) mide la energía térmica. Un BTU es la energía necesaria para elevar una libra de agua en 1 °F. Utilice esta calculadora para determinar cómo la producción de calor del equipo afecta la temperatura ambiente.</div>
</div>
<div class="results" id="results">
<div class="result-section">
<div class="section-header">
<h3><span class="icon">📊</span>Información de la habitación</h3>
</div>
<div class="section-content">
<div class="data-row">
<div class="data-label">Volumen de la habitación:</div>
<div class="data-value highlight" id="cubicFeet"></div>
</div>
</div>
</div>
<div class="result-section">
<div class="section-header">
<h3><span class="icon">🌡️</span>Análisis de carga de calor</h3>
</div>
<div class="section-content">
<div class="data-row">
<div class="data-label">BTU para aumentar 1°F:</div>
<div class="data-value" id="tempRise"></div>
</div>
<div class="data-row">
<div class="data-label">Aumento de temperatura:</div>
<div class="data-value highlight" id="totalPotentialHeatIncrease"></div>
</div>
</div>
</div>
<div class="info-box">
<strong>Notas importantes:</strong><br/>• Este cálculo asume que no hay sistema de ventilación o enfriamiento.<br/>• Densidad del aire: condiciones atmosféricas estándar al nivel del mar.<br/>• Capacidad calorífica del aire: 0,24 BTU por pie cúbico por grado Fahrenheit<br/>• Para los centros de datos, garantice una refrigeración adecuada para evitar el aumento de temperatura.<br/>• La carga de calor continua causará un aumento de temperatura acumulativo sin enfriamiento</div>
</div>
</div>
<script>
/**
 * BTU Heat Load Calculator
 * Calculates room temperature rise based on BTU heat output
 *
 * Formula:
 * - Room Volume (cubic feet) = Width × Length × Height
 * - BTU per 1°F = Volume × 0.24 (heat capacity of air)
 * - Temperature Rise (°F) = Total BTU Load / BTU per 1°F
 * - Temperature Rise (°C) = (°F - 32) × 0.5556
 */

function btu() {
    // Set variables from input
    var height = Number(document.getElementById("height").value);
    var width = Number(document.getElementById("width").value);
    var length = Number(document.getElementById("length").value);
    var btuload = Number(document.getElementById("btuload").value);

    // Validate inputs
    if (isNaN(height) || isNaN(width) || isNaN(length) || isNaN(btuload)) {
        alert("Please enter valid numbers for all fields.");
        return;
    }

    if (height <= 0 || width <= 0 || length <= 0) {
        alert("Room dimensions must be greater than zero.");
        return;
    }

    if (btuload < 0) {
        alert("BTU load cannot be negative.");
        return;
    }

    // Calculate room volume in cubic feet
    var cubicFeet = width * length * height;

    // Calculate BTU needed to raise temperature by 1°F
    // Air has a heat capacity of approximately 0.24 BTU per cubic foot per degree Fahrenheit
    var btuOneDegree = cubicFeet * 0.24;

    // Calculate temperature rise in Fahrenheit
    var tempChange = btuload / btuOneDegree;

    // Convert to Celsius
    // Note: This converts a temperature difference, not an absolute temperature
    // For temperature differences: ΔC = ΔF × (5/9) or ΔF × 0.5556
    var celtemp = tempChange * 0.5556;

    // Format and display results
    document.getElementById("cubicFeet").innerHTML = cubicFeet.toFixed(2) + " cubic feet";
    document.getElementById("tempRise").innerHTML = btuOneDegree.toFixed(2) + " BTU/hr per °F";
    document.getElementById("totalPotentialHeatIncrease").innerHTML =
        tempChange.toFixed(2) + " °F (" + celtemp.toFixed(2) + " °C)";

    // Show results section
    document.getElementById("results").classList.add("show");

    // Scroll to results
    document.getElementById("results").scrollIntoView({ behavior: 'smooth', block: 'start' });
}

// Add enter key support for all input fields
document.addEventListener('DOMContentLoaded', function() {
    console.log('BTU Heat Load Calculator v2.0 - Modern UI');

    const inputs = ['width', 'length', 'height', 'btuload'];
    inputs.forEach(function(id) {
        document.getElementById(id).addEventListener('keypress', function(e) {
            if (e.key === 'Enter') {
                btu();
            }
        });
    });

    // Auto-focus first input field
    document.getElementById('width').focus();
});
</script>