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Natural Gas Consumption

Reference data and engineering information about natural gas consumption for combustion applications.

naturalgasconsumption

Overview

Engineering reference data for Natural Gas Consumption in combustion engineering.

Key Formulas

Heat Release

Q=m˙HVQ = \dot{m} \cdot HV

Fuel energy release rate.

Air-Fuel Ratio

AF=mairmfuelAF = \frac{m_{air}}{m_{fuel}}

Mass of air per mass of fuel.

Excess Air

EA=O221O2×100%EA = \frac{O_2}{21 - O_2} \times 100\%

From flue gas oxygen measurement.

Variables

SymbolDescriptionUnit
QQHeat release rateW
m˙\dot{m}Mass flow ratekg/s
HVHVHeating valueJ/kg
AFAFAir-fuel ratio

Natural Gas Appliance Consumption Data

Kitchen and Laundry Appliances

24 rows
Typical natural gas consumption rates for kitchen and laundry appliances
Appliance / Equipment(-)
Consumption(ft³/h)
Consumption(10⁻⁶ m³/s)
Consumption(liter/s)
Heat Dissipated(Btu/hour)
Heat Dissipated(kW)
10 gal boiling pan453500.354400013
20 gal boiling pan604750.486100018
30 gal boiling pan756000.67500022
40 gal boiling pan907000.78800026
4 ft hot cupboard483750.384800014
6 ft hot cupboard544250.435400016
Steaming oven40 - 60300 - 4000.30 - 0.4037000 - 5100011 - 15
Steaming oven, double1008000.810000030
Small broiler---300009
Large broiler---6100018
Boiler & roaster, combined---6800020
2-tier roasting oven504000.45100015
Doughnut fryer---6800020
Double oven range40032003.2390000115
Roasting oven302400.24300009
Gas cooker756000.66800020
Hot cupboard171400.14170005
Clothes dryer - domestic---35000-
Drying cupboard5400.0451001.5
Gas iron heater5400.0451001.5
Washing machine201500.15200006
Wash Boiler30 - 50230 - 4000.23 - 0.4027000 - 510008 - 15
Coffee maker 3 burner---170005
Domestic standard gas range---70000-

Source: engineeringtoolbox.com

Heating, Industrial, and Miscellaneous Equipment

13 rows
Typical natural gas consumption rates for heating, industrial, and miscellaneous equipment
Equipment / Application(-)
Consumption(ft³/h)
Consumption(10⁻⁶ m³/s)
Consumption(liter/s)
Heat Dissipated(Btu/hour)
Heat Dissipated(kW)
Furnace---120000-
Gas Refrigerator---3000-
Fireplace Gas Log---80000-
Barbecue grill - residential---5100015
Bunsen burner (small)3200.0235001
Bunsen burner (large)10800.08100003
Glue kettle10800.08100003
Gas engine (per horsepower)---100003
Gas dryer---35000-
Forge151150.12140004
Brazing heart302300.23300009
Storage water heater, 30-40 gal---35000-
Storage water heater, 50 gal---50000-

Source: engineeringtoolbox.com

Unit Conversion Formula

The relationship between power in kilowatts and heat dissipation in BTU per hour is given by the following conversion factor:

1 kW=3412 Btu/h1 \text{ kW} = 3412 \text{ Btu/h}

Interactive Charts

Gas Pipes - Low Pressure Sizing

Natural Gas - Meter Capacities

References