SYSTEM.INITIALIZE: BLUEPRINT_UNFOLD
DWG TITLEPORTFOLIO BLUEPRINT
DRAWN BYDINESH KUMAR
SCALE1:1
REVISIONA.02
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Thermodynamics

Boiler Efficiency Simulator

Examine steam boiler thermal efficiency using the input-output method. Adjust generation rates, fuel flow, water and steam enthalpy, or swap fuel calorific presets.

Method
Direct Method
ASME PTC 4.1
Fuel Type
Fuel Oil
GCV = 42000 kJ/kg
Output
CSV
Export ready

Parameters

Fuel Presets
Animate steam sweep

Boiler Performance Model

Heat Output (Steam absorbed)
Q_out = ms × (hs - hw) kJ/h
Heat Input (Fuel combusted)
Q_in = mf × GCV kJ/h
Direct Efficiency
η = (Q_out / Q_in) × 100 %

At current flow rates, heat output is 3292 kW out of 4667 kW fuel energy input.

ASME PTC 4.1 direct calculation assumes negligible radiation/convection losses.

Boiler Flow Diagram

Water InletSteam OutSteam: 5000 kg/hFuel: 400 kg/h
Thermal Efficiency
70.5%

Direct Calculation

Heat Input (Fuel)
4667kW
Heat Output (Steam)
3292kW
Steam-Fuel Ratio
12.50kg/kg

kg steam produced per kg fuel

Efficiency & Heat Output vs Steam Rate

Performance Sweep Nodes

Steam Flow (kg/h)Efficiency (%)Heat Output (kW)Steam/Fuel Ratio
1000 kg/h14.1%658 kW2.50
2000 kg/h28.2%1317 kW5.00
3000 kg/h42.3%1975 kW7.50
4000 kg/h56.4%2633 kW10.00
5000 kg/h70.5%3292 kW12.50
6000 kg/h84.6%3950 kW15.00
7000 kg/h98.8%4608 kW17.50
8000 kg/h112.9%5267 kW20.00
9000 kg/h127.0%5925 kW22.50
10000 kg/h141.1%6583 kW25.00
11000 kg/h155.2%7242 kW27.50
12000 kg/h169.3%7900 kW30.00
13000 kg/h183.4%8558 kW32.50
14000 kg/h197.5%9217 kW35.00
15000 kg/h211.6%9875 kW37.50
16000 kg/h225.7%10533 kW40.00
17000 kg/h239.8%11192 kW42.50
18000 kg/h253.9%11850 kW45.00
19000 kg/h268.0%12508 kW47.50
20000 kg/h282.1%13167 kW50.00