The heat rate of a power plant is a measure of its thermal efficiency. It represents the amount of thermal energy (heat) required to produce one unit of electrical energy. A lower heat rate indicates a more efficient power plant, meaning it uses less fuel to generate the same amount of electricity.
BTU/kWh
kJ/Wh
kJ/kWh
MJ/kWh
function calculateHeatRate() {
var thermalEnergyInput = parseFloat(document.getElementById("thermalEnergy").value);
var electricalEnergyOutput = parseFloat(document.getElementById("electricalEnergy").value);
var selectedUnits = document.getElementById("units").value;
var resultDiv = document.getElementById("result");
resultDiv.innerHTML = ""; // Clear previous results
if (isNaN(thermalEnergyInput) || isNaN(electricalEnergyOutput) || thermalEnergyInput <= 0 || electricalEnergyOutput <= 0) {
resultDiv.innerHTML = "Please enter valid positive numbers for thermal and electrical energy.";
return;
}
var heatRate;
var unitLabel;
switch (selectedUnits) {
case "BTU/kWh":
// Assuming thermalEnergyInput is in BTU and electricalEnergyOutput is in kWh
heatRate = thermalEnergyInput / electricalEnergyOutput;
unitLabel = "BTU/kWh";
break;
case "kJ/Wh":
// Assuming thermalEnergyInput is in kJ and electricalEnergyOutput is in Wh
// Convert Wh to kWh for consistency if needed or handle direct conversion
heatRate = thermalEnergyInput / electricalEnergyOutput;
unitLabel = "kJ/Wh";
break;
case "kJ/kWh":
// Assuming thermalEnergyInput is in kJ and electricalEnergyOutput is in kWh
heatRate = thermalEnergyInput / electricalEnergyOutput;
unitLabel = "kJ/kWh";
break;
case "MJ/kWh":
// Assuming thermalEnergyInput is in MJ and electricalEnergyOutput is in kWh
heatRate = thermalEnergyInput / electricalEnergyOutput;
unitLabel = "MJ/kWh";
break;
default:
resultDiv.innerHTML = "Invalid unit selection.";
return;
}
resultDiv.innerHTML = "Your calculated Heat Rate is: " + heatRate.toFixed(2) + " " + unitLabel + "";
}
.heat-rate-calculator {
font-family: sans-serif;
padding: 20px;
border: 1px solid #ccc;
border-radius: 8px;
max-width: 500px;
margin: 20px auto;
background-color: #f9f9f9;
}
.heat-rate-calculator h2 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.calculator-inputs {
display: grid;
grid-template-columns: 1fr;
gap: 15px;
margin-bottom: 20px;
}
.calculator-inputs label {
font-weight: bold;
margin-bottom: 5px;
display: block;
}
.calculator-inputs input[type="number"],
.calculator-inputs select {
width: 100%;
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
box-sizing: border-box;
}
.heat-rate-calculator button {
display: block;
width: 100%;
padding: 12px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 16px;
transition: background-color 0.3s ease;
}
.heat-rate-calculator button:hover {
background-color: #0056b3;
}
#result {
margin-top: 20px;
padding: 15px;
background-color: #e9ecef;
border: 1px solid #ced4da;
border-radius: 4px;
text-align: center;
}
#result p {
margin: 0;
font-size: 1.1em;
}