How can you convert btu to cfm?
No. BTUs are heat (British Thermal Units) and cfm is a measure of air flow volume (cubic feet per minute)
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hi ashley The British thermal unit (BTU or Btu) is a unit of energy used in the United States. It is also still occasionally encountered in the UK, in the context of older heating and cooling systems. In most other areas, it has been replaced by the SI unit of energy, the joule (J). A Btu is de…fined as the amount of heat required to raise the temperature of one pound avoirdupois of water by one degree Fahrenheit. 143 Btu is required to melt a pound of ice. As is the case with the calorie, several different definitions of the Btu exist, which are based on different water temperatures and therefore vary by about 0.5%. Answer British Thermal Units - a standard measurement of heat answer its is a hockey team a name of a acient dude (MORE)
To convert CFH to BTU, you need to use the formula 1 CFH which isequivalent to 1000 BTUs.
BTUs and kilowatts measure different types of quantities. A BTU (British Thermal Unit) measures heat (energy), while a kilowatt (1000 watts) measures power (energy per unit time). 1 BTU equals 0.0002928 kilowatt-hour 1 BTU/minute equals 0.01757 kilowatt. To convert a watt to BTUs, the factor… is 1 kilowatt of power = 3412.1416 BTU/hr 3.412 BTUs equal a watt-hour. 1 kW = 3412.1416 BTU/hour with appropriate significant figures 3*10 3 BUT per hour (MORE)
You're looking for the "delta T" for this equation..... Q = cfm * 1.08 * dT and 10000 = 100 * 1.08 * dT ==> dT = 92.59. the final temperature will be 32 + 92.59 = 124.59 degF
There is no direct conversion because it depends on the gas. A BTU is a unit of energy (a "British thermal unit") and how much energy a certain volume of gas has depends on the identity of the gas. A liter of gaseous oxygen will have a different amount of energy in it than a liter of hydrogen gas. … Also, it depends on the temperature and pressure of the "hot gas." Because of the Ideal Gas Law (see Related Questions links), the amount of gas in the same volume goes down the hotter the gas. If you know the temperature and pressure, it is easy to find how much gas you have in a certain volume. Then, to convert that to BTU, you need to know the energy content of that specific gas. That you need to look up in a table somewhere... . Agree with JEK above.. The short answer: It depends on the type of gas, and whether the gas is hot or cold changes the density of the gas. So standard atmospheric temperature and pressure should be taken into consideration. The long answer: To convert a volume of any gas into a unit of energy, you have to know what kind of gas it is first. The Btu content of a gas is determined by the percentages of its component gas. The higher the Btu rating of the gas, the more energy it contains per cubic foot or volume of that gas. Take Natural Gas for example. NG is a mixture of several different gasses, mostly methane. This being the case, no two wells that produce NG have the same energy content. There is no true standard of energy content (or calorific value) for NG. For rough estimates an average value can be used: it is roughly 1000 Btu/ft^3. A standard heating value for domestic and commercial NG delivery is 950 Btu/scf (scf=standard cubic feet). There are references on the Btu content of specific gases. There are also conversions.. Hope the links provided help a bit. Reference books are your best bet. . (MORE)
A much easier way is to visit http://www.hvacquick.com/conversions.php where they have a calculater that will easily convert this for you.
HVAC . I'm not sure and will have to research this, but let me kick it off by writing Btus/hr = CFM X 1.08 X temperature rise. Hopefully, others will weigh in and contribute further to this answer.. (Since I supervise Units and Unit Conversions, I would like to admonish people to use the units …Btus/hr , not just Btus, when referring to power.) (MORE)
Temperature IS BTU,. BTU is: British Thermal Unit,. I believe the formula is this: How long it takes one pound of ice to melt at room temperature with no air moving around it, Room temp. being 73 degree F. I think? maybe 72?. anyway the time is equal to one BTU.. Maybe someone who knows the form…ula exactly can edit this. (MORE)
To convert Cubic Feet to Btu's, multiply by 1,000. 1 CF = 1,000 Btu's. 6,912 CF X 1,000 = 6,912,000 Btu's
Converting propane gas to liquid propane is a state change, not achemical one. Therefore there is no loss of BTU/liter generatedwhen it is burned.
The metric conversion of kilocalories convert to British ThermalUnits is straightforward. For example, 50,000 kcal is equal to 198283.342 but.
This conversion is very simple : and is 1 ton = 12,000 BTU/hour. So if you have a 3 ton of refrigeration you have 36,000 BTU/hour. In addition, I want to add that in some large Data Centers, there is a movement from BTU to kW of power used by equipment. This is probably driving the Tons/kW quest…ion that the HVAC engineers are telling people cannot be solved. 1 Ton of cooling will eliminate 12,000 BTU /hr of heat. 12,000 BTU /hr will be produced by 3.516 kW of power used by equipment. 1 Ton of cooling will then handle 3.516 kW of equipment load based heat exhaust. (MORE)
The term cfm stands for cubic feet per minute. It is a unit ofmeasurement used to determine the amount of air flow,.
You can't. Pascals (pa) area messurement of pressure. CFM (cubic feet per minute) is a rate of flow. However, there is a device called a manometer which is used to measure either pressure(in pascals) or air flow in(in cubic feet). Most commonly used for blower door tests.
There are 3,413 BTU (British Thermal Units) per Kilowatt Hour, so if your appliance operated at a rate of 100,000 BTU per hour you would operating at a rate of 29.3 Kilowatts. You can go to www.erpud.com/comparison.htm to see a sheet that reflects energy cost comparisons. Hope this helped.
Cmh = cubic meters per hour cfm = cubic feet per minute m 3 /hr * 35.3ft 3 /m 3 * hr/60minutes = ft 3 /minute So, 1 cmh = 0.5883 cfm
We're going out on a limb here, taking a chance, throwing caution to the wind, risking looking stupid, and assuming that 'CFM' means 'cubic feet per minute' and 'CMH' means 'cubic meters per hour'. ( 1 ft 3 / min ) x x (1,440 min / hour) / (35.3147 ft 3 / m 3 ) = 40.776 CMH (rounded)
The answer depends on many things.... A btu is a british thermal unit, which is the measure of energy to raise one CC of water one degree Celcius. But you probably want to know about airflow in cfm (not water), and the amount of cooling (or heating) available in 1 cfm or airflow. In Houston, we tend… to cool things more than heat. We also try to drive moisture out of the air (dehumidify), but I won't discuss that now. The general equation to answer your question is like this: Q sens = cfm * 1.08 * (T in - T out ) 23.76btu/h) (MORE)
If you know the FPM and you know the area of your flow say duct work (20"x20")... first convert your area 20*20=400 in 2 to Ft 2 20"*20" = 400in 2 400in 2 /144 = 2.7777Ft 2 Now that you know the area in Ft 2 you can use the equation [ FPM*area(ft 2 ) = CFM ] if your FPM …is 500 and we use the 20"x20" duct then 500fpm * 2.777Ft2 = 1388.5 cfm (MORE)
1 BTU = 1.055 kilojoules. (1 joule per second = 1 watt, or 1 joule = 1 watt-sec) 1 kWh = 3.6 megajoules (1000 x 3600 watt-sec = 3600 kilojoules) 3600000/1055 = 3412.3 So 1 kWh is the energy equivalent of 3412.3 BTUs . The reverse conversion is that 1 BTU = 0.000293 KWh * However, a …kWh is energy used in work over time , while BTUs are energy content . WattHours (Wh) or BTU's are measurements of Energy: which is how much energy is used (a certain amount). Conversely, watt and hp are measurements of power, which is how fast energy is being used (a certain rate). Over the last century Wh, KWh, and MWh has replaced BTU in all non-heating uses of energy, except in scientific use (prefers the joule, J). In describing thermal energy use however, BTU (larger amounts of energy) and calories (smaller amounts of energy) and sometimes therms (very large amounts) are still used. (MORE)
CFM is a Volumetric Flow Rate while m/s is a velocity, you need the additional measurement of the Cross Sectional Area of the flow to fully work it out. Since there are 2118.88 CFM : 1 m 3 /s 41.3 CFM divided by 2118.88 = 0.01949 m 3 /s Divide this by the area in m 2 & you will get m/s. .
This is a power unit conversion from British thermal units per hour(Btu/hr.) to its equivalent in horsepower (hp). There are 2544.43btu/hr. in one horsepower. Conversely, there are 0.000393 hp in oneBtu/hr.
You can't convert directly. CFM is cubic feet per minute, a measure of flowrate. PSI is pounds per square inch, a measure of pressure.
A BTU is a measure of heat energy, while a ton is a measure of weight. Unless you're looking for the number of BTUs a ton of a particular fuel will produce, the two are not comparable.
nLPM stands for Normal Liters per Minute. This is actually a mass flow rate because it describes the amount of gas that would have the indicated LPM volumetric flow rate AT 1 atmosphere pressure and 0 degrees C. The actual volumetric flow rate (LPM) at any other temperature or pressure condition mus…t be adjusted according to the ratios of absolute temperatures and (inversely) absolute pressures. (MORE)
BTU IS FOR BRITISH THERMAL UNITS, USED TO MEASURE ENERGY OF STOVES ETC. SQUARE FEET IS JUST THAT LENGTH MULTIPLIED BY WIDTH. NOT SOME THING THAT IS CONVERTABLE
The two are related but are not equivalents. 12000 btu = 1 ton of refrigeration , in a typical air conditioning application 400 cfm per ton are needed to properly support it`s operation.
1 cubic foot of natural gas can be burned to generate about 1000 btu of heat. A 105000 btu/hr appliance would therefore require about 105 cubic feet of natural gas per hour; this is 0.1 thousand cubic feet, or 0.1mcf/hr.
This is a two-step question. First, to convert volt-amps intowatts, multiply by the power factor. For a heating element like aconvector or kettle the power factor is 1, but for a motor it mightbe 0.7. In the absence of information a power factor of 0.8 can beassumed. Watts are a measure of power an…d the equivalent imperial measure isBTU per second or BTU per hour. Alternatively a BTU is a measure of energy and the metricequivalent is watt-seconds or watt-hours. A BTU is 1055watt-seconds (also known as joules). A kilowatt-hour is equivalent to 3412 BTU. (MORE)
Would need to know what you have 480 cubic feet of, in order to give you an answer.
If The amount of energy required to produce 34.5lbs/hr of steam at a pressure and temp of 0 psig and 212degree F with feed water 0 psig and 212 degree F requires 33445.6 Btu/hr of energy ie 33445.6 Btu/hr willl produce 34.5lbs/hr then mathematically it can be solved Thank you,
This is a type mismatch since BTU (or at least the only BTU I know of), standing for British Thermal Unit, is a measure of heat energy , whilst cubic meters are a measure of volume . It is possible to express energy as pressure x volume however: 1 BTU is approx 1055 Joules of energy => 1055 P…a/m 2 . For more information on these two terms, take a look at: http://en.wikipedia.org/wiki/British_thermal_unit http://en.wikipedia.org/wiki/Joule (MORE)
CFM is a rate of flow. KW is a rate of energy. You really cannot convert them.
'Gallon' is a unit of volume or occupied space. 'BTU' is a unit of work or energy. The two units measure different quantities. Neither one can be converted into the other one.
Degrees Fahrenheit are a unit of temperature and British Thermal Units are units of heat; in physics, temperature and heat are not the same thing (although they are synonymous in normal English usage). To explain, the heat content of an object depends upon both the temperature and the heat capacity …of that object, so for example, one liter of water has only half the heat capacity of two liters of water; even if your one liter container is at exactly the same temperature as the two liter container, it still has only half the heat content as measured in BTUs. So, since these units do not measure the same thing, they cannot be converted into eachother. (MORE)
1 Btu/hour [I.T.] = 0.000 393 014 779 53 horsepower [international] . 1 Btu/hour [I.T.] = 0.000 392 856 662 2 horsepower [electric] . 1 Btu/hour [I.T.] = 0.000 398 465 762 18 horsepower [metric] . 1 Btu/hour [I.T.] = 0.000 392 834 018 95 horsepower [water]
x BTUs / 3412.141633128 BTUs/KWH = KWH For example: -------------- If you burned 1,000,000 BTUs per month, then calculate the following: 1,000,000 BTUs / 3412.141633128 BTUs/KWH = ~293 KWHs per month Notes: ------- 1. Energy = the capacity/measure of a body/system to do work (express…ed as the work that it does in changing to some specified reference state. It is measured in joules (SI units)). 2. 1 Joule = 1 Watt-second 3. 1 BTU = 1055.05585262 Joules (or Watt-seconds) 4. 1 WH (Watt-Hour) = 3.412141633 BTUs created/used in 1 hour = 3600 Joules or Watt-seconds (i.e. 1 Joule or Watt-second created/used every second for 1 hour) 5. 1 KWH = 1000 WH = 3412.141633 BTUs created/used in 1 hour = 3,600,000 Joules or Watt-seconds created/used every hour (i.e. 1000 Joules or Watt-seconds created/used every second for 1 hour) Answer 1: "KWH" is an amount of energy. "BTU per month" is a rate of energy consumption, i.e. "power". The two quantities have different dimensions. They don't convert to one another. But lets play with them for a while anyway: (1 BTU/month) x (1055 joule/BTU) x (month / 30 days) x (day / 86,400 seconds) = ( 1055 / [30 x 86,400] ) ( BTU - joule - month - day / month - BTU - day - second) = 0.000407 joule per second = 0.000407 watt That's the rate of energy consumption (power) equal to one BTU per month . . . . . 0.407 milliwatt (or -3.9 dBm). ======== (1 KWH) = (1,000 watt-hour) = (1,000 joule / second) (hour) (BTU / 1055 joule) (3,600 sec / hour) = [ (1,000 x 3,600) / (1,055) ] [ joule - hour - BTU - second / second - joule - hour ] = 3412.3 BTU That's the amount of energy equivalent to 1 KWH . . . . . 3,412.3 BTU. (MORE)
You need to know the area of the duct or pipe in square feet. C.f.m. is cubic feet per minute (quantity) and f.p.m. is feet per minute (velocity). Q cfm = velocity fpm x area sq.ft.
No: CFM is Cubic Feet per Minute, which is a flow rate (volume/time). PSI is Pounds per Square Inch, which is a pressure measurement (force/area). However, for certain situations with known substances moving in a known piping, there may be tables available which at a certain pressure, the the subs…tance will move through the pipe at a certain rate. These would be very specific situations and not a general conversion, though. (MORE)
kpa = kilopascals is a measure of pressure. cfm = cubic feet per minte is a measure of the rate of flow. The two measure different things and, according to the basic rules of dimensional analysis, conversion from one to the other is not valid.
The formula is simple. One ton of cooling equals 12000 btu. So a three ton A/C has a 36000 btu capacity.
btu per pound * pounds per gallonOK, it sounds as if you know the value of fuel in oil btu per pound.Now find out how much a gallon of fuel oil weighs and multiply the btu value x that weight in pounds and that is the value per gallon. Or simply, diesel fuel is #2 fuel oil which contains 140,000 btu… per gallon. (MORE)
Coverting MMSCFD which is million standard cubic feet per day to CFM or cubic feet per minute requires knowing how many minutes are in a day. This can be determined by multiplying 60 by 24 and then dividing the MMSCFD by this product.
You need to look at a steam table first then Multiply lbs/hr steam x latent heat of evaporation in BTU/lb @ the operating pressure.
CMH is a unit of flow rate (m 3 /hr or cubic metres per hour) A BTU is a British Thermal Unit, a unit of energy that is equal to around 1055 joules. You cant convert the two as they are a measure of different things, but changing BTU (or Btu) to joules will help standardise the calculations.
That all depends on what unit you want to convert it to , which you neglect to mention in your question.
Btu / scf = Btu / lb X MW / 379.5 where: MW = molecular weight of the gas, lb / lb-mol The constant 379.5 is the molar volume at standard conditions of 14.696 psia and 60Â°F
( N cubic meter / hour ) x (3.28084 feet / meter ) 3 x ( 1 hour / 60 minutes ) = 0.58858 N cubic feet / minute (rounded)
A ' watt ' is the SI unit of measurement for power , whereas the ' British Thermal Unit ' (BTU) is the Imperial unit of measurement for energy . Power and energy are two different quantities, so you cannot convert watts into BTUs. (Besides, who would use a BTU these days?)
An MMBtu is a million Btu. 1 kilowatt hour = 3412 Btu, approx = 0.003 412 MM Btu. Originally, MBtu represented 1000 Btu, from the Roman numeral M = 1000. However, this often got confused with the SI prefix "Mega", meaning 1 million. The prefix MM was introduced to get around this confusion.