ASME PTC 46 & Thermodynamic ORC Standards • Industrial Waste Heat to Power
Industrial Waste Heat ORC Power Generator Sizer
Convert low-to-medium grade industrial waste heat (180°F to 550°F) into clean, on-site electricity. Model organic fluids (cyclopentane, R245fa, Solkatherm), expander isentropic efficiency, internal parasitic pump loads, net annual MWh generation, and Section 48 ITC tax equity.
🔥 Waste Heat Source & Cycle Parameters
💵 Electricity Offset & Project CapEx
⚡ ORC System Thermodynamic Performance
Commercial ORCNet Power Capacity
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Gross: --
Thermal Net Efficiency
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Carnot: --
Annual Clean Generation
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MWh / year
Simple Payback
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Years (post-ITC)
Financial & Carbon Abatement Summary
Turnkey Gross Capital Cost:
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IRA Section 48 ITC Credit:
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Net CapEx Investment:
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Annual Electricity Cost Savings:
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Annual Maintenance (O&M):
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Net Annual Operating Cash Flow:
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Scope 2 Carbon Emissions Avoidance
Displacing marginal grid fossil generation at 0.85 lbs CO₂e/kWh
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Metric Tons CO₂/yr
📐 Thermodynamic Cycle & First/Second Law Governing Relations
• Carnot Efficiency Limit: η_carnot = 1 - (T_cold / T_hot) [where T is in Kelvin: (T_F - 32) * 5/9 + 273.15]
• Real Subcritical ORC Cycle Efficiency: η_th = η_carnot * η_fluid_cycle * η_expander
• Gross Generator Output: P_gross (kW) = (Q_thermal_MMBtu/hr * 293.071 kWth/MMBtu) * η_th
• Net Plant Power Output: P_net (kW) = P_gross * (1 - % Parasitics_pump_condenser)
• Levelized Cost of Energy Avoidance: Annual Savings = P_net * Hours * $/kWh