﻿ hydrogen lift per cubic foot

## hydrogen lift per cubic foot

• ### Lifting Gases - Airship Wiki for the SmallBlimp Community

Stated another way, 1,000 cubic feet of hydrogen at 32 degrees [fahrenheit] temperature, at sea level, will lift 75.1 pounds while the same volume of helium will lift 69.6 pounds." Helium, a by-product of natural gas production, has a lifting capacity of 1.02 kg/m3 (0.0640 lb/ft3). Cost: US\$50 - US\$70/MCF (1000 cubic feet) Methane

• ### Lifting gas - Wikipedia

A lifting gas or lighter than air gas is a gas that has a lower density than normal atmospheric gases and rises above them as a result. It is required for aerostats to create buoyancy, particularly in lighter-than-air aircraft, which include free balloons, moored balloons, and airships.Only certain lighter than air gases are suitable as lifting gases. Dry air has a density of about 1.29 g/L ...

• ### How muchdoes helium and hydogen lift per cubic foot - RC ...

Jan 16, 2010· Correction; the 4100 cubic feet, [amount of H2 to lift an ultralight boat], needs to be divided by 7.5, which is how many cubic feet of hydrogen that 1 kwh of electricity will hydrolize, on average. So 547 is the number of kwh to make 4100 cubic feet of H2. 547 kilowatt hours times 17 cents equals \$93 to fill and lift an ultralight Skyboat.

• ### 9th Infantry Division

5. Lift.—a. Calculation.—For ready calculation of the lift of 1 cubic foot of hydrogen the following equation may be used: 1.235Xpurity percentagexbarometric pressure in inches of mercury absolute temperature (F.) b. See also TM 1—325 (now published as TR 1170—295) for the lift

• ### Helium Flotation - How Helium Balloons Work | HowStuffWorks

So, for example, a 20-foot balloon has a radius of 10 feet. 10* 10 * 10 * 3.14 * 4/3 = 4,186 cubic feet of volume. 4,186 cubic feet * 28.2 grams/cubic feet = 118,064 grams. 118,064 grams / 448 grams per pound = 263 pounds of lifting force. Although not used much anymore, hydrogen balloons were once quite popular. Hydrogen weighs just 0.08988 ...

• ### science based - Hydrogen Dragons - Worldbuilding Stack ...

A cubic foot of hydrogen lifts around 30.8 grams (68 lbs per 1,000 cubic feet). Considering a hypothetical 7 foot long 2 foot wide 4 foot high helium filled bladder along the spine of northropi (dimensions that hopefully won't detract overly much from the dragon look & aerodynamics) as an initial back of the envelope calculation gives us 56 ...

• ### Meteorological Balloon FAQ's | Pawan Export

Hydrogen is the lighter of the two gases. As a general thumb rule Hydrogen lifts 31.8 grams per cubic foot at sea level while helium lifts 28.2 grams per cubic foot at sea level. Due to the combustible nature of hydrogen gas, it is recommended that the user should undergo proper training for handling and safety.

• ### Liquid Hydrogen - Matheson

Liquid Hydrogen (continued) Conversion Data WEIGHT GAS LIQUID POUNDS Lb KILOGRAMS Kg CUBIC FEET SCF CUBIC METERS Nm3 GALLONS Gal LITERS L 1 Pound 1 .0 0 .4536 192 .00 5 .047 1 .6928 6 .408 1 Kilogram 2 .205 1 .0 423 .3 11 .126 3 .733 14 .128 1 SCF Gas 0 .005209 0 .002363 1 .0 0 .02628 0 .008820 0 .03339 1 Nm3 Gas 0 .19815 0 .08988 38 .04 1 .0 0 ...

• ### How much weight can one cubic foot of hydrogen lift ...

Sep 01, 2006· In air at standard sea level temperature and pressure, about 1.2 ounces. With a molecular weight (MW) of 29, air weighs 29 g per 22.4 liters, while hydrogen with a MW of 2 weighs 2 g per 22.4 liters, so the lift force of hydrogen is 27 g per 22.4 liters. A cubic foot is 28.317 liters, so the lift force of 1 ft^3 hydrogen is 34.132 g or 1.204 oz.

• ### Hydrogen and Helium in Airship Operations | Airships

The actual lifting ability of each gas varies with temperature, pressure, and humidity, and to take account of varying atmospheric conditions and gas impurities airship designers often conservatively estimated helium's lift at 60 lbs per 1,000 cubic feet and hydrogen's lift at 68 lbs per 1,000 cubic feet.

• ### Battery Room Hydrogen Gas Ventilation Calculator by SBS ...

Hydrogen Gas Produced per Hour Above field is required. Step 4: Ventilation Requirement. Volume of Room XX cubic feet (Result from Step 2) Hydrogen Gas Produced per Hour XX cubic feet (Result from Step 3) Max. percentage of hydrogen gas allowed 1% …

• ### HELIUM & WEIGHT CHART - balloons

Lift Ability Gas Capacity Average # per 242 Cu. Ft. Tank Average Float Time Float Time with Ultra Hi-Float™ 11" Round Latex Standard and Special one T Colors 11" 12 grams .35 oz. (10g) .5 cu. ft. 484 18 - 24 Hours 1 - 4 Weeks 11" Round Latex Metallic and Decorator one T Colors 11" 12 grams .35 oz. (10g) .5 cu. ft. 484 16 - 18 Hours 1 - 3 Weeks

• ### Ultralight Hydrogen Airship - Small Blimps Forum

Mar 24, 2013· And the next is produce enough hydrogen it is going to take about 2000 cubic feet of hydrogen (for me I am just a teenager) to produce enough lift for the ship on average my HHO generator produces about 1 cubic foot of hydrogen per minute and usually it is a good idea to watch well it is inflating something and that would take 33 hours 20 ...

• ### Basics of Airship Flight - Airship Advocate

Roughly speaking helium has a lift of 0.064 pounds per cubic foot or 1.02 kilograms per cubic meter and hydrogen has a lift of 0.070 pounds per cubic foot or 1.10 kilograms per cubic meter. The greater the volume of lifting gas that is contained the greater the lift will be.

• ### COMMON GASES CONVERSION TABLE - SFDPH

COMMON GASES CONVERSION TABLE To Use This Worksheet: 1. Find the name of the compressed gas you want to convert. 2. If you know the quantity in pounds, multiply by the number in Column A 3.

• ### Requirements for Hydrogen Storage and Use

* standard cubic feet (at 1 atm pressure) A. If the quantity of hydrogen is less than the applicable MAQ value listed in table 1, the following requirements must be met. a. If the quantity of hydrogen is greater than 250 cubic feet, then that storage and use area must be separated from other occupancies by 1 hour rated construction. (IV.A.a) b.

• ### How many cubic feet of hydrogen does it take to lift one ...

Aug 24, 2014· Hydrogen lifts 68 lbs per 1,000 cubic feet [1], thus ~14.71 cu. ft. per lb. BUT - it depends on a number of factors - as can be seen in the equation below (the value given above is a "conservative estimate"): Gross lift = Gas volume (of airship) ...

• ### Standard Cubic Foot - an overview | ScienceDirect Topics

Jan 10, 2013· Michael J. Gradassi, in Studies in Surface Science and Catalysis, 1998. 4.3 Gas Consumption Rates. Gas consumption per barrel of liquid product is quoted from 8,000 standard cubic feet per barrel (scf/Bbl) to as much as 11,400 scf/Bbl [2,3,4,5,6,7,8,9], averaging 9,500 scf/Bbl.No clear reason can be given to the wide range of figures which varied plus or minus 15 to 20 percent from this …

• ### How much hydrogen is needed to lift 220 lbs at least 100 ...

Jan 29, 2019· How much hydrogen is needed to lift 220 lbs at least 100 ft high? 220lb is approximately 100kg The density of hydrogen is 0.090kg/m^3 and air is 1.293kg/m^3. So the lifting force is 1.293 – 0.090 = 1.2kg/m^3 of hydrogen So we need 100kg/1.2kg/m^3 ...

• ### How many cubic feet of hydrogen does it take to lift 1 ...

1 pound/gallon (UK) = 6. pound/cubic foot * * * * * That is a rubbish answer since it implies that a cubic foot of anything - lead or hydrogen - would have a mass of 6. pounds!

• ### Hydrogen Conversions Calculator | Hydrogen Tools

You may use this calculator to do simple conversions between four popular phase points of hydrogen: liquid at boiling point (-252.87°C at 1 atm). gas at Normal Temperature and Pressure (NTP = 20°C at 1 atm). gas at standard conditions (15.6°C at 1 atm). gas at standard conditions (0°C at 1 atm).

• ### how much lighter is a vacuum than hydrogen? | Yahoo Answers

Nov 10, 2020· Hydrogen gas at STP has a density 0f 0.08988 g/L = 5.611 lbs / 1000 cubic feet. So 1000 cubic feet of vacuum could life 68 + 5.6 = 73.6 pounds. Problem is, hydrogen gas pushes out on its container, so the balloon can be kept inflated against air pressure. Vacuum doesn't do that, so the container has a pressure of 2116 pounds per square foot ...

• ### Google Answers: How many hydrogen-filled balloons would it ...

Feb 02, 2004· Thus, the volume of hydrogen would be proportionately less. Using the chart, it takes appears that it takes approximately 406.8 liters of hydrogen to lift one pound. Thus, 72847.88 liters/ 179.07 lbs = 406.8 liters/lb. 406.8 liters/lb x 170 lbs = 69156 liters The diameter of the balloon would be slightly less than 17 feet.

• ### SOIL MECHANICS AND CLASSIFICATION

oxygen than hydrogen, the area ... Now, lift the buckets up. The cubic blocks will spill, but many ... approximately 100 pounds per cubic foot. Imagine the earth surface as an ...