14000 Btu

Practical 14000 Btu Guidance

Practical 14000 Btu Guidance

Are you looking for 14000 btu?


Here's 14000 Btu Selections:

Koldfront PAC1401W Ultracool 14,000 BTU Portable A...

Customer Review:
Click Here for More Info


$649.00

 

Whynter 14,000 BTU Dual Hose Portable Air Conditio...

Customer Review:
Click Here for More Info


$485.00

 

Mr. Heater MH12C 14,000 BTU Heater / Cooker...

Customer Review:
Click Here for More Info


$70.00

 


Haier Cpa14xhj 14000 Btu Portable Heat/cool Air Co...

Customer Review:
Click Here for More Info


$599.00

 

Commercial Cool Series 14,000 BTU Portable Room Ai...

Customer Review:
Click Here for More Info




 



korek api
 
Today's Discussion

A high-end gas stove usually has at least one burner rated at 14000 Btu/h. Find time?
A high-end gas stove usually has at least one burner rated at 14000 Btu/h. If you place a 0.43 kg aluminum pot containing 2.6 liters of water at 20°C on this burner, how long will it take to bring the water to a boil, assuming all of the heat from the burner goes into the pot? _________min How much additional time will it take to boil all of the water out of the pot? ________min

Reply
Algol
The total thermal energy going into the pot and the water to bring the water to a boil may be stated as: Q = Q(pot) + Q(water) The time taken to raise the water to a boil is: t = Q / P t = [Q(pot) + Q(water)] / P Where P is power in watts, the value of Q is equal to mcΔT, so: t = [mcΔT(pot) + mcΔT(water)] / P Here, c is specific heat (for copper its 387J/kg∙°C and for water, 4186J/kg∙°C), m is mass and T is temperature. The mass of the water is 2.6kg (easy conversion from liters). The power is found from: 14000BTU/h = 14000BTU/h(0.293W/1.00BTU/h) = 4100W So for part (a): t = [(0.43kg)( 387J/kg∙°C)(80°C) + (2.6kg)( 4186J/kg∙°C)(80°C)] / 4100W = 220s (rounded, or 3.7min.) (b) In this case, the water changes phase, so for water, use the equation Q = mL (where L is the latent heat of vaporization, water’s is 2.26 x 10^6J/kg). : t = mL(water) / P = (2.6kg)( 2.26 x 10^6J/kg) / 4100W = 1400s (rounded, or about 23 min.) Hope this helps.




Related Images
  

Related News