HVAC Engineering & Thermodynamic Calculators
Comprehensive suite of 39 professional tools for room AC heat load, server room PAC, duct static pressure, pipe friction, refrigerant PT saturation, and ISEER efficiency ratings.
AC Compressor Voltage Drop & Wire Sizing
Calculate voltage drop across AC power cables. Check NEC
AC Installation & Repair Cost Estimator
Estimate total installation, copper piping, and gas charging costs across Pune and MIDC corridors.
AHU Coil Condensate Drainage Sizer
Calculate evaporator coil moisture condensation rates and P-trap depth to avoid water stagnation and overflow in AHU rooms.
Air Changes Per Hour (ACH) & Fresh Air CFM Sizer
Calculate total air delivery CFM and outdoor fresh air intake from room dimensions and ACH guidelines for offices, cleanrooms, and…
BTU Heat Load Calculator
Free online BTU heat load calculator. Estimate total thermal cooling load in BTU/hr based on room dimensions, ceiling height, and…
CFM Airflow Volume Sizer
Calculate required air delivery in Cubic Feet per Minute (CFM) across cooling coils for split, cassette, and central AHU systems.
Chilled Water Hydronic Pipe Sizing
Size central plant chilled water supply and return piping. Calculate GPM flow, internal pipe diameter, and friction head loss.
Chilled Water Pipe Friction Loss & Pump Head Solver
Calculate friction head loss (ft w.g.), water velocity (ft/s), total system dynamic head, and pump hydraulic horsepower for chilled water…
Compressor Displacement Capacity
Calculate compressor swept volume in m³/hr and estimated thermal cooling kW from displacement in cc/rev and operating RPM.
Cooling Tower Approach & Range
Calculate cooling tower range, approach, and thermal effectiveness percentage. Audit industrial water-cooled chiller plant performance.
Data Center & Server Room Heat Load Sizer
Calculate sensible heat gain, rack thermal density, and PAC tonnage with N+1 and 2N redundancy for data centers and server…
Duct Air Velocity (FPM & m/s)
Calculate airflow velocity inside round and rectangular ducts. Classify acoustic noise and static friction penalties.
Duct Sizer & Friction Rate Calculator
Size HVAC supply and return ducts accurately using the equal friction method. Get round diameters and equivalent rectangular duct sizes.
EER to COP & BEE ISEER Rating
Convert Energy Efficiency Ratio (EER) to Coefficient of Performance (COP) and Indian ISEER star rating equivalents.
Equal Friction Duct Static Pressure Loss Solver
Solve duct external static pressure loss, equivalent length, air velocity, and fan brake horsepower (BHP) for commercial ductwork in Pune.
HVAC Diagnostic Troubleshooting Wizard
Interactive online troubleshooting wizard for split AC, VRF systems, and commercial chillers. Step-by-step diagnostic solutions.
HVAC/R Engineering & Technician Certification Quiz
Test your knowledge in refrigeration cycles, psychrometrics, superheat calibration, and error code troubleshooting.
Hydronic Closed Expansion Tank Sizing
Calculate required diaphragm expansion tank volume for closed chilled and hot water hydronic loops to prevent relief discharge.
Industrial Chiller IKW/TR & COP Audit
Audit industrial process water chiller specific power consumption (IKW/TR) and COP. Detect tube fouling and energy waste.
Intelligent Refrigerant Selector Tool
Find the best refrigerant gas based on cooling application, operating temperature, safety class, and Montreal Protocol guidelines.
Inverter AC Efficiency ROI & Payback Calculator
Analyze electricity savings and payback period when upgrading to high-efficiency inverter air conditioning in Pune.
Inverter AC ISEER Rating & BEE Star Sizer
Calculate official Indian Seasonal Energy Efficiency Ratio (ISEER), BEE Star Rating (1 to 5 Star), annual electricity units (kWh), and…
Line Set Refrigerant Charge Addition
Calculate exact grams and ounces of refrigerant to weigh in for split AC and VRF systems with extended pipe runs…
Liquid Line Subcooling Charge Check
Calculate subcooling to verify TXV refrigerant charge. Prevent vapor bubbles from entering the expansion valve.
Monthly Electricity Bill & Inverter Savings
Estimate monthly AC power consumption and power bill in Rupees. Calculate payback and savings of 5-star inverter ACs in Maharashtra.
Pressure Unit Converter
Free online pressure unit converter. Convert gauge and absolute pressure across PSI, Bar, kPa, kg/cm², and MPa.
Preventive Maintenance Audit Checklist
Standard operating procedure checklist for commercial AC and industrial chiller maintenance in Pune & MIDC.
Psychrometric Wet Bulb & Dew Point
Calculate wet bulb temperature, dew point, and air enthalpy from dry bulb and relative humidity. Prevent indoor condensation.
Refrigerant Line Pipe Sizing
Size refrigerant copper tubing for R-410A, R-32, R-134a, and R-22 systems. Recommended suction and liquid line outer diameters.
Refrigerant PT Chart Saturation
Interactive refrigerant PT chart calculator for R-410A, R-32, R-134a, R-22, R-404A. Convert gauge PSI to saturation boiling temperature.
Refrigerated Compressed Air Dryer Sizer
Size industrial refrigerated air dryers for pneumatic systems. Apply temperature and pressure correction factors.
Room AC Tonnage Sizer
Calculate accurate AC tonnage and BTU heat load for any room or office in Pune. Calibrated for peak summer ambient…
SEER / EER / COP Efficiency Converter
Convert between SEER, EER, and COP efficiency metrics. Compare seasonal performance across air conditioners and heat pumps.
Sensible & Latent Cooling Load Split
Calculate sensible vs latent cooling loads to select proper evaporator coil sensible heat ratio (SHR) for precise humidity control.
Suction Line Superheat Diagnostic
Calculate suction line superheat to diagnose refrigerant charge and expansion valve performance. Detect compressor liquid floodback.
Temperature Converter (°C, °F, K)
Convert temperatures between Celsius, Fahrenheit, and Kelvin instantly for HVAC and refrigeration thermodynamics.
Total Heat of Rejection (THR) Sizer
Calculate Total Heat of Rejection for industrial condensers and chillers. Prevent high discharge pressure trips during summer.
Vacuum Moisture Evacuation Threshold
Convert vacuum microns to Torr, inHg, and mbar. Verify deep vacuum moisture boiling threshold before charging refrigerant.
Walk-In Cold Room Heat Load Sizer
Calculate transmission, product, and infiltration cooling load for commercial walk-in cold rooms and chillers across Pune MIDC.