How many BTUs are in a ton of steam?
How many BTUs are in a ton of steam?
12,000 BTU/h
1 Ton Ac = 12,000 BTU/h Cooling = 15,000 BTU/h Heat Rejection. 1 BTU/h = 1 BTU per hour. 1 BHP = 34,500 BTU/h (33,472 BTU/h) = 34.5 Lb. Steam per hour = 34.5 Lb.
How many BTU are in a LB?
The BTU (IT) per pound is equal to the useful energy in BTUs released from one pound of fuel mass during its complete combustion.
How many BTUs does it take to raise a steam 1 degree?
That one pound of water must absorb 970 Btu’s before it all turns to steam, and will stay at 212°F during the process. That’s one match required to raise the temperature by one degree, and then almost 1,000 matches to boil off the water while not raising the temperature.
What is the volume of 1 pound of steam?
26.796 cubic feet
One cubic foot of steam weighs 0.03732 pounds, and one pound of steam occupies 26.796 cubic feet at zero psi gauge pressure and a temperature of 212°F.
How many BTUs are in a pound of steam?
1000 BTU
1 pound of steam is equal to 970 BTU (or an easy to remember rule of thumb is 1 pound of steam is equal to 1000 BTU.
What is the specific heat of steam in BTU lb F?
Specific heat water vapor: 1.996 kJ/kgK =0.4767 Btu(IT)/(lbm °F) or kcal/(kg K) Specific Weight (at 4 oC): 9.806 kN/m3 = 62.43 lbf/ft.
What is a lb of steam?
A pound of steam is merely a pound of water that has been trans- formed to steam. Sooner or later, this pound of steam will be converted back to a pound of water. And that is where the magic of steam comes into play in our dry kilns.
How hot is 150lb steam?
| Gauge Pressure (psig) | Temperature (oF) | Enthalpy |
|---|---|---|
| Saturated Vapor (Btu/lb) | ||
| 150 | 366 | 1196 |
| 155 | 368 | 1196 |
| 160 | 371 | 1197 |
What does BTU lb mean?
BTUs per pound
BTU/lb means BTUs per pound, an imperial unit of measure used to describe the amount of heat released on combustion of one pound of material, such as coal, under specific conditions.
How do you calculate the energy of a steam?
hg = 2676 KJ/Kg, So now Enthalpy required for saturated liquid to convert into saturated steam can be obtained as follows, Latent Heat ( he ) = hg – hf = 2676 – 419 = 2257 KJ / Kg. Cp – Specific Heat of Steam at Constant Pressure, which can be considered as 1.860 KJ/Kg.
How is steam load calculated?
The feedwater flow rate can be calculated from steam mass flow and blowdown rate:
- Blowdown Mass Flow = Feedwater Mass Flow * Blowdown Rate.
- Steam Mass Flow = Feedwater Mass Flow – Blowdown Mass Flow.
- Steam Mass Flow = Feedwater Mass Flow – Feedwater Mass Flow * Blowdown Rate.
What temperature is 15lb steam?
| Gauge Pressure (psig) | Temperature (oF) | Enthalpy |
|---|---|---|
| Saturated Liquid (Btu/lb) | ||
| 15 (Inches Mercury Vacuum) | 179 | 147 |
| 10 (Inches Mercury Vacuum) | 192 | 160 |
| 5 (Inches Mercury Vacuum) | 203 | 171 |
How do I calculate BTU for heating?
For example, a 300 square foot room typically requires 7,000 BTUs to maintain a comfortable temperature, while a 1,000 square foot room requires 18,000 BTUs. A simple formula to determine your heating needs is: (desired temperature change) x (cubic feet of space) x . 133 = BTUs needed per hour.