What is a typical gas flow rate per burner for a gas stove top?

Answer 1

Using this as a reference: http://www.energyexcess.com/node/216

2 kg of water takes 1700 kJ of gas (yes its only 40% efficient) to reach boiling in 8 minutes.

Heat rate = 1700 / (8*60) kJ/s = 3.5 kJ/s (also known as kW)

Now calorific value of LPG = 46 kJ/g

Therefore you have about 0.077 g/s of LPG consumption.

Of course the reference doesn't mention the burner geometry - so the flow rate will vary - but you do get a ball park figure.

As a more crude way - we have 14.2 kg LPG cylinders in India.

One cylinder lasts about 5 months. About 1/2 hour to 1 hour cooking time per day.

Makes it total 75 to 150 hours. Lets take 100 hours as a rough figure.

14.2 kg is vented out in 100 hours.

That means 14200 g in 360000 s

= 0.04 g/s

Almost half of what has been calculated above.

So the reference (first line) definitely uses extra large sized burners (commercial).