ThermoFluidCalc Engineering Report

Solar Thermal Ejector Refrigeration Analysis (Huang 1D Model) — 2026-08-23 20:57:09
🔍 /

🚀 Solar Thermal Ejector Refrigeration

Model solar-driven supersonic ejector refrigeration: entrainment ratio (omega), thermal COP, required solar collector field area (m²), and compressor-free cooling capacity.

⚡ Fortran 90 Engine Double Precision (IEEE 754) ✓ ISO / ASME Validated
📊 Solver Telemetry ● ACTIVE
👁️ Consultations 43
⚡ Calculs faits 36
💾 Téléchargements 391 📦 Code Fortran 11.4 KB
📅 Mise en service Jun 2026
⏱️ Latence < 1 ms
⚡ Outils & Rapports :
💾 Télécharger Fortran 90

🚀 Supersonic Ejector Nozzle & Solar Thermal Refrigeration Loop

Real-time visual simulation: High-pressure primary motive steam entraining secondary evaporator vapor through supersonic mixing

📝 Configuration & Presets

☀️ Solar Building AC (R245fa) 💨 Industrial Steam Jet Chiller (Water) 🔥 CSP Parabolic Trough (R600a) 🏠 Solar Flat Plate Cooler (R134a)
🧪 Working Fluid & Temperatures
☀️ Solar Irradiance & Collectors
Solar Ejector Refrigeration Formulation:
• Entrainment Ratio: ω = ṁsec / ṁpri ∝ √[(Tg−Tc)/(Tc−Te)]
• Thermal COP: COPth = Q̇cool / Q̇solar_gen
• Required Solar Area: Asolar = Q̇gen / (G · ηcoll) [m²]
• Completely compressor-free thermal refrigeration.

📊 Solar Ejector Results

📊 Output Summary
💾 Fortran Source

Required Solar Collector Field Area
105.3 m²
Thermal COP: 0.812 | Solar Heat Duty: 61.6 kW
ω = 0.429
Entrainment Ratio (ω) 0.429 ṁsec / ṁpri
Thermal COP (Q̇c / Q̇gen) 0.812 Zero mechanical work
Primary Motive Flow 0.048 kg/s From solar boiler
Secondary Suction Flow 0.020 kg/s From evaporator

📈 Entrainment Ratio ω vs Solar Generator Temp Tg (°C)

📉 Solar Collector Area A_solar (m²) vs Cooling Power Q_cool (kW)

=================================================================
 THERMOFLUIDCALC — SOLAR THERMAL EJECTOR REFRIGERATION REPORT
=================================================================
Case Title                 : Industrial Steam Jet Vacuum Chiller (Water R718)
Refrigerant Fluid          : Water (R718) — Natural Zero-GWP
Operating State Temps      : Generator Tg = 120.0 C, Evaporator Te = 5.0 C, Condenser Tc = 36.0 C
Solar Radiation & Field    : Irradiance G = 900.0 W/m2, Collector Efficiency = 0.65
-----------------------------------------------------------------
SUPERSONIC ENTRAINMENT (w) : 0.4292 (Secondary / Primary Mass Flow Ratio)
THERMAL COP (COP_th)       : 0.8118
REQUIRED SOLAR FIELD AREA  : 105.28 m2
Solar Generator Heat Duty  : 61.59 kW
Motive / Suction Flows     : m_pri = 0.0475 kg/s, m_sec = 0.0204 kg/s
=================================================================

📘 Calculation Methodology & Solar Ejector Standards

Supersonic Jet Entrainment

High-pressure motive vapor expands through a convergent-divergent nozzle to supersonic speeds ($M > 2$), creating a low-pressure zone that sucks vapor from the evaporator.

100% Thermal Drive (No Compressor)

Solar thermal energy directly powers the cycle. Only a tiny liquid feed pump is required, consuming less than $1\%$ of the electrical energy of vapor compression chillers.

Key Engineering Assumptions

  • 1D gas dynamic model of supersonic constant-pressure mixing.
  • Saturated vapor conditions at generator and evaporator exits.
  • Applicable to solar air conditioning, industrial steam ejectors, and food cold storage.