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Topic: Kilopascals


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SI

In the News (Fri 27 Nov 09)

  
  Pascal - Wikipedia, the free encyclopedia
Therefore, meteorologists use hectopascals today for air pressure, which are equivalent to millibars, while similar pressures are given in kilopascals in practically all other fields, where the hecto prefix is hardly ever used.
Since official metrication, meteorologists in Canada use kilopascals (kPa) CTV News, weather, CTV News, weather; current conditions in Montréal and CBC weather, current conditions in Montréal
In the former Soviet mts system, the unit of pressure is the pieze, which is equal to one kilopascal.
en.wikipedia.org /wiki/Kilopascal   (451 words)

  
 Alternative Text - Development and Field Testing of Multiple Deployment Model Pile (FHWA-RD-99-194)
The Y-axis is pore pressure in kilopascals (0 to 250) and in PSI (0 to 40).
Shear resistance is shown on the X-axis in kilopascals (0 to 12) and in PSI (0 to 1.8).
Shear resistance is shown in on the X-axis in kilopascals (0 to 6) and in PSI (0 to 0.8).
www.tfhrc.gov /structur/pubs/99194/alttext.htm   (22345 words)

  
 Earth's atmosphere - Wikipedia, the free encyclopedia
Atmospheric pressure drops by ~50% at an altitude of about 5 km (equivalently, about 50% of the total atmospheric mass is within the lowest 5 km).
The average atmospheric pressure, at sea level, is about 101.3 kilopascals (about 14.7 pounds per square inch).
Even at heights of 1000 km and above, the atmosphere is still present (as can be seen for example by the effects of atmospheric drag on satellites).
en.wikipedia.org /wiki/Earth%27s_atmosphere   (1625 words)

  
 NASA Quest > Space Team Online   (Site not responding. Last check: 2007-10-31)
The suit’s atmosphere is pure oxygen at 29.6 kilopascals.
Prior to prebreathing, the atmospheric pressure of the entire orbiter cabin is depressed from the normal 101 kilopascals to 70.3 pascals while the percentage of oxygen is slightly increased.
The maximum allowable rate of leakage of the Shuttle EMU is 1.38 kilopascals per minute, and this is checked before the suit is brought back down to air lock pressure.
quest.arc.nasa.gov /space/teachers/suited/5emu3.html   (2517 words)

  
 Pascal - Memory Alpha
The standard atmospheric pressure at Earth sea level, otherwise measured at as 1 atm, is equal to 101,325 pascals.
Upon being pulled into the Delta Quadrant, the USS Voyagers warp core pressure was down to 21 kilopascals.
Upon unlocking the magnetic interlocks, they were able to increase it to a stable rate of 25 kilopascals.
memory-alpha.org /en/index.php?title=Pascal&printable=yes   (219 words)

  
 Production of a fuel gas with a stabilized metal carbide catalyst - Patent 4372755
The process of claim 24 wherein the temperature of the reactor is the threshold temperature range of the stabilized metal carbide catalyst and the stabilized metal carbide catalyst is selected from the group consisting of iron silicide carbide, manganese chromium carbide, ferrochromium carbide and manganese cobalt carbide.
The fluidized bed was maintained at a pressure of 100 psig (690 kilopascals) and a temperature of 700.degree.
The reactor off-gas obtained a maximum of 33.9 percent methane and then the methane content decreased, apparently as a result of the decomposition of the catalyst which is shown by the Mossbauer analyses of the composition of the iron carbide in Table 4.
www.freepatentsonline.com /4372755.html   (7443 words)

  
 Manometer_problems   (Site not responding. Last check: 2007-10-31)
The mercury level is 100.2 mm higher in the arm of the tube connected to the air.
A closed manometer is filled with mercury and connected to a container of neon gas.
The level of mercury is 46 mm higher in the arm of the tube connected to the container of nitrogen.
limestone.k12.il.us /teachers/rhebron/Chem_HO/Chap_15/Chap_15_Manometer_Problems.html   (245 words)

  
 Driving Measure Conversion - Metric - U.S. (from and to) - Fuel Economy
kilopascals (kPa) to pounds per square inch (psi)
Convert miles per gallon to liters per 100 kilometers
Convert kilopascals (kPa) to pounds per square inch (psi)
ourworld.compuserve.com /homepages/easysurf/cnver4.htm   (275 words)

  
 Kilopascals   (Site not responding. Last check: 2007-10-31)
to millibars, while similar pressures are given in kilopascals in practically all other fields, where the hecto prefix...
C has a vapour pressure greater than 300 kilopascals absolute or is completely gaseous at 20C at a standard pressure of 101.3 kilopascals; and...
Hectopascals are not proper units of pressure; kilopascals are the proper size for atmospheric pressures...
pressureconversion.ikatconversion.com /kilopascals   (654 words)

  
 Air Pressure   (Site not responding. Last check: 2007-10-31)
Pressure is measured in units called kilopascals and the atmospheric pressure at sea level is approximately 101 kilopascals.
If it were possible to cut a slice out of the atmosphere measuring one square centimetre at the base and extending upwards to 400 kilometres - that is, to the limits of the atmosphere - and to weigh this slice, it would weigh about one kilogram (or more correctly 10N).
The force on the one square centimetre at the base of this column of air would be equivalent to a pressure of 101 kilopascals or the atmospheric pressure at sea level.
lms.central.sa.edu.au /emagine/Conditions%20for%20Life%20to%20Exist%20on%20Earth/conditionsforlife/airpress.htm   (298 words)

  
 Matter and Atoms   (Site not responding. Last check: 2007-10-31)
As a pascal is a somewhat small unit, it is often expressed in terms of "kilopascals (kPa)", or thousands of pascals.
He's increased the volume by a factor of four, but he's also increased the area of the base by a factor of four, and so the pressure remains the same as it was for the one-cubic-meter tank.
This means that it doesn't matter what size the base of the tank is. As long as the water in it is a meter deep, the pressure on the bottom in 9.8 kilopascals.
www.kosmoi.com /Technology/Engineering/Materials   (6118 words)

  
 Hectopascals? No! No! Never!
The proper units of atmospheric pressure are kilopascals (kPa), which are, for example, the units which have been used by Environment Canada in its public weather reports for many years (I live close to the border and hear these units used on Canadian radio and television stations).
Someone answered the question, then one of the forum regulars who is knowledgeable about weather jumped in with a comment "I thought kilopascals were the same as millibars." This confusion is one of the hidden dangers of using hectopascals equal to millibars.
Let him or her know that kilopascals are the proper units for atmospheric pressureand that millibars are obsolete and trying to hang onto them by calling them hectopascals is wrong.
ourworld.compuserve.com /homepages/gene_nygaard/hectopas.htm   (2163 words)

  
 Kilopascals   (Site not responding. Last check: 2007-10-31)
X-axis is sigma subscript VO between 0 and 700 in kilopascals.
pounds [103 kilopascals] and a hot water boiler may not exceed thirty pounds.
Mathematical conversions for Atmospheres, Inches of Mercury, Kilopascals, Millimeters of Mercury.
poundspersquareinch.mumpinch.com /kilopascals   (670 words)

  
 Compartment pressure in association with closed tibial fractures. The ³ - Wheeless' Textbook of Orthopaedics
The measured pressure decreased steadily when sampled at increasing distances proximal and distal to the site of the highest recorded pressure.
Decreases of twenty * millimeters of mercury (2.67 kilopascals) five centimeters adjacent to the site of the peak pressure were common.
Compartment syndrome was diagnosed in five patients on the basis of clinical findings, and the diagnosis was confirmed when peak compartment pressures of more than the critical threshold (within twenty millimeters of mercury [2.67 kilopascals] of the Á diastolic blood pressure) were recorded.
www.wheelessonline.com /ortho/compartment_pressure_in_association_with_closed_tibial_fractures_the_   (293 words)

  
 The Flight of Apollo-13
Besides power, the chemical reaction in the cells produced water, which not only supplied the crew's drinking water but was circulated through cooling plates to remove heat from certain critical electronic components.
The tanks were designed to operate at pressures of 865 to 935 pounds per square inch (psi) (6,000 to 6,450 kilopascals) and temperatures between -340 degrees F and +80 degrees F (-207 degrees C to +27 degrees C).
Each tank was fitted with a relief valve designed to open when the pressure rose above 1,000 psi (6,900 kilopascals); the tanks themselves would rupture at pressures above 2,200 psi (15,169 kilopascals).
liftoff.msfc.nasa.gov /Academy/History/APOLLO-13/COMPTON.HTML   (3362 words)

  
 Air Pressure Sensor for Lego Mindstorms RCX
This sensor measures air pressure in the range of 0 to 200 KiloPascals.
When this sensor is used with NXT and the conversion cable, it must be read as a light* sensor set to raw mode.
Air pressure in KiloPascals is calculated by the formula 200(1-(x-342)/666) where x is the raw value from the NXT.
www.techno-stuff.com /AirPressure.htm   (345 words)

  
 PCSCVvariablepg10.html   (Site not responding. Last check: 2007-10-31)
I thought pressure is measured in Kilopascals or Pounds per Square Inch?
However, the accepted SI units for pressure (especially in physics) is Kilopascals.
The tracing shown is determined by plotting the position of the top of the mercury column over time as it fluctuates between diastolic and systolic pressures.
www.bergen.org /ACADEMY/Bio/PCS/PCS1/DOCS/BP/PCSCVvariablepg10.html   (353 words)

  
 A train that runs on feathers - Advanced Physics Forums
They also found that the pore pressure underneath a snowboard with a surface area of 5000 square centimetres is about 1.4 kilopascals.
Extrapolating these results to the case of a 50-ton high-speed train, Weinbaum and co-workers calculated that 9.8 kilopascals of pore pressure would be needed to support a train that was 25 metres long and 2 metres wide.
According to the scientists, a porous material with a permeability of 10-8 metres squared or smaller - such as goose down - could be used as a track that was capable of supporting the weight of the moving train (figure 2).
www.advancedphysics.org /forum/showthread.php?t=1093   (529 words)

  
 Boiler Safety Proposed Rules
The travel of the pointer from zero to 30 psig (207 kilopascals) pressure shall be at least three inches.
If the system is designed for a working pressure of 30 psi (207 kilopascals) or less, the tank shall be suitably designed for a minimum hydrostatic test pressure of 75 psi (520 kilopascals).
Alternatively, a tank built to ASME Section X requirements may be used if the pressure and temperature ratings of the tank are equal to or greater than the pressure and temperature ratings of the system.
www.txcc.state.tx.us /boilers/blrprop.htm   (16425 words)

  
 [No title]   (Site not responding. Last check: 2007-10-31)
The last parameter, MODE, determines whether air or water properties (density and specific heat) are to be used.
The factor of 1000 converts the pressure difference from pascals to kilopascals for dimensional consistency.
For this reason, the units given in the nomenclature section must be used.
sel.me.wisc.edu /trnsys/trnlib/hydronics/507.des   (192 words)

  
 Kilopascals   (Site not responding. Last check: 2007-10-31)
The word "kilopascals" uses 11 letters: A A C I K L L O P S S.
Words within kilopascals not shown as it has more than seven letters.
All words formed from kilopascals by changing one letter
www.morewords.com /word/kilopascals   (180 words)

  
 General Chemistry
  What is the pressure, in kilopascals, of the argon?
  What is the pressure, in kilopascals, of the neon?
  What is the pressure, in kilopascals, of the nitrogen?
www.limestone.k12.il.us /teachers/kbaker/03-04/5th_6_Wks/Chemistry/Manometer_Playsheet.htm   (264 words)

  
 Cambridge Consultants - University of Western Ontario
Cambridge Consultants has been engaged to develop the wind simulators to be used in the facility.
There will be over 100 individual wind simulators, which will consist of high-performance fans controlled in real time to apply positive and negative wind forces over a +5 to –20 kilopascals range (5 kilopascals equates to a weight of around 500kg for every square metre of roof).
Each wind simulator module will additionally feature a sophisticated control and networking system that will allow the complex time and spatially varying wind effects of the real world to be realistically applied.
www.cambridgeconsultants.com /ip_q_university.shtml   (278 words)

  
 General Chemistry
  What is the pressure of the nitrogen gas in kilopascals?
  What is the pressure of the SO in kilopascals?
  What is the pressure, in mmHg, of the gas in the container if the air pressure is 95.6 kilopascals?
www.limestone.k12.il.us /teachers/kbaker/03-04/5th_6_Wks/Chemistry/Manometer_Problems.htm   (194 words)

  
 NASA - Venus
The atmospheric pressure (pressure exerted by the weight of the gases) on Venus is estimated at 1,323 pounds per square inch (9,122 kilopascals).
This is about 90 times greater than the atmospheric pressure on the Earth, which is about 14.7 pounds per square inch (101 kilopascals).
The temperature of the uppermost layer of Venus's clouds averages about 55 degrees F (13 degrees C).
www.nasa.gov /worldbook/venus_worldbook.html   (1926 words)

  
 answers ap
What is the relation between inches of mercury, atmospheres, kilopascals, and millibars?
Your answer: Average pressure at sea level is equivalant to: 29.92 inches of mercury, or (Hg) 1.0 atm, or (atmospheres) 101.325 kPa, or (kilopascals) 1013.25 mb, or (millibars) The pressure gradient force is the actual pressure difference which causes the initial movement of air.
If high pressure were 1004 mb, and low pressure were 1000 mb, the difference would be the 4 mb.
www1.fccj.edu /pacrews/answers_ap.htm   (573 words)

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