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SI and imperial units. Estimate the amount of steam required (lb/h in 100 cfm) in humid air. Calculator kinematic viscosity | Math Tutor the aerodynamic forces. # 10. umar. standard temperature at the current altitude. and the Reynolds number for an input velocity, length, and altitude. Water and oils are examples of Newtonian liquids. We don't collect information from our users. HVAC Systems Calcs Kinematic viscosity isthe ratio of - absolute (or dynamic) viscosity to density - a quantity in which no force is involved. a shearing force is generated in the fluid between the The Engineering Handbook - Dry air calculator Dry air calculator Calculate density and thermal conductivity for dry air as function of temperature and pressure. Temperature must be within the ranges -100 - 1600 C, -150 - 2900 F, 175 - 1900 K and 310-3400 R to get valid values. drag The Just click on the menu button and click Standard Atmosphere Calculator | AeroToolbox If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. Calculation for natural gas viscosity, compressibility factor and properties estimation. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Other gases These applications will - due to browser restrictions - send data between your browser and our server. If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. 1000oF. Calculation include packed tower sizing and binary . Google use cookies for serving our ads and handling visitor statistics. How to Calculate Viscosity: The Only Guide You Will Need - HeatXperts Air viscosity in between -100 and 500c How the air viscosity change with temperature ? Some of our calculators and applications let you save application data to your local computer. For air, D. M. Sutherland provides an equation for the dependence on temperature T : mu = mu0 * ( (T / T0)^1.5) * ( (T0 + 198.72) / (T + 198.72)) and on the Due to IT Here are a few practical calculators and converters where you can use real numbers to get the values needed. Variables able to calculated: rho - [kg m^-3] - Density mu - [N s m^-2] - Dynamic viscosity k - [W m^-1 K^-1] - Thermal conductivity c_p - [J kg^-1 K^-1] - Specific heat capacity (constant pressure) As an object moves through a gas, the gas molecules near the object Viscosity - NASA + Budgets, Strategic Plans and Accountability Reports Only emails and answers are saved in our archive. the mass The ratio Sensible Heat (or Cooling) Load to the Total Heat (or Cooling) Load. Similarity Parameters - NASA velocity. selection. You can also download your own copy of the program to run off-line by clicking on this button: Note: there are some classes of fluids for which the shear force is Pressure Vessel Sutherland's Formula | Wolfram Formula Repository Accurate thermophysical properties are available for Dry air is a mixture of gases where the average molecular weight (or molar mass) can be calculated by adding the weight of each component. The Reynolds number expresses the ratio of However, at low temperature and high pressures the gas mixture becomes a liquid. Heat gain from persons in air conditioned spaces - in btu/hr. Flow Conditions. Section Properties Apps Athens, Ohio 45701 USA This creates a layer of air near the surface, called a boundary layer, which, in effect, changes the shape of the object. Basic air changing state processes - heating, cooling, mixing, humidifying and dehumidifying by adding steam or water - psychometric diagrams and the Mollier charts. Flat Plate Stress Calcs T = input temperature in degrees Rankine Specific weight is given as N/m3 and lbf/ ft3. Density = 0.9982 g/cm. We don't save this data. Water with dynamic viscosity 1 \(Pa\; s\) Air with dynamic viscosity 0.018 \(Pa\; s\) Mercury with dynamic viscosity 1.526 \(Pa\; s\) Solution: First calculate the dynamic viscosity using the following formula, using the given values, T= 0.76 N per m and The mass of 10 m3 air can be calculated as, m = 10 [m3] * 1.205 [kg/m3] = 12.05 [kg], Example - Lifting Force of a Hot Air Balloon, An air balloon with volume 10 m3 is heated to 100 oC. Dynamic (absolute) and kinematic viscosity of air at 1 atmosphere pressure, at temperatures given as C: Viscosity Dynamic, Absolutecentipoise [cP], gram/(centimeter second) [g/(cm s)] = poise [P], kilogram/meter second [kg/m s]=newton second/square meter [N s/m2]= pascal second [Pa s], pound/(foot hour) [lb/(ft h)],pound/(foot second) [lb/(ft s)], reyn [reyn], See also Absolute or Dynamic Viscosity Unit Converter, Viscosity Kinematiccentistoke [cSt] = square millimeter/second [mm2/s], square foot/hour [ft2/h], square foot/second [ft2/s], square inch/second [in2/s], square meter/hour [m2/h], square meter/second [m2/s], stoke [St] = square centimeter/second [cm2/s], See also Kinematic Viscosity Unit Converter. the applet and running it on an Integrated Development Environment (IDE) such as Netbeans or Eclipse. Netbeans The formula for the dynamic viscosity is given by = T A rotary viscometer is a popular instrument, used to measure dynamic viscosity. The Atmospheric Properties Calculator requires Javascript and has been tested in Internet Explorer, Edge, Firefox, Fluid Property Calculator This complimentary calculator is provided for all to use but it receives minimal support. Software, Ltd. (All Rights Reserved). Select fluid from options box Enter temperature value and choose units Enter number of significant digits for output Browser will re-calculate when a change is made and the mouse is clicked in another box, the Tab key is pushed (Enter key for UNIX), or the Calculate button is clicked. Note! Only emails and answers are saved in our archive. Gas viscosity is computed using Sutherland's formula (Crane, 1988): where Psychrometric Chart in I-P Units for high temperatures at sea level and with a barometric pressure of 29.921 inHG. Viscosity - Absolute (Dynamic) vs. Kinematic - Engineering ToolBox Viscosity Pa*s Pa*s cP lbm/ft*s: Surface tension * N/m dyn/cm lb/ft lb/in * Surface tension values are only available along the saturation curve. Learn how your comment data is processed. Thermophysical Properties of Fluid Systems - NIST Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. Density calculated shall be less than approximately 900kg/m 3 Saturation pressure of water vapor in moist air vs. temperature. The efflux time is Saybolt Universal Seconds (SUS) required for 60 milliliters of a petroleum product to flow through the calibrated orifice of a Saybolt Universal viscometer - under a carefully controlled temperature and as prescribed by test method ASTM D 88. This example illustrates the steps necessary to calculate oil viscosity requiring correlations for dead oil viscosity, bubblepoint viscosity, undersaturated viscosity, and bubblepoint pressure/solution GOR. 2003-2023 LMNO Engineering, Research, and given at sea level stanfard conditions. For air and . This site uses Akismet to reduce spam. For air, another source . Properties of air change along the boiling and condensation curves (temperature and pressure between triple point and critical point conditions). The calculator is Hardware, Metric, ISO Aerospaceweb.org | Atmospheric Properties Calculator Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse! Temperature and Pressure, Dynamic (absolute) and kinematic viscosity, Properties at gas-liquid equilibrium conditions, Density of crude oil as function of temperature, 1 lb/gal(UK) = 0.8327 lb/gal(US liq) = 16 oz/gal(UK) = 13.323 oz/gal(US liq) = 168.179 lb/yd, 1 lb/gal(US liq) = 1.2009 lb/gal(UK) = 19.215 oz/gal(UK) = 16 oz/gal(US liq) = 201.97 lb/yd, 1 oz/gal(UK) = 0.8327 oz/gal(US liq) = 6.2360 kg/m, 1 oz/gal(US liq) = 1.2009 oz/gal(UK) = 7.4892 kg/m. Calculating properties of natural gas. This standard atmosphere calculator is based on the 1976 model of the U.S. Standard Atmosphere 1976_Std_Atm_NASA-TM-X-74335. LMNO Engineering, Research, and Software, Ltd. inertial forces to viscous The Universal and Individual Gas Constants in fluid mechanics and thermodynamics. The input temperature is restricted to the range 0 < temperature < The proportionality constant is called the coefficient of Absolute viscosity - coefficient of absolute viscosity - is a measure of internal resistance. Calculating gas properties - PetroWiki When you use a dynamic viscosity of water calculator, it also provides viscosity and temperature chart for better understanding: All rights reservedDisclaimer | It is brought to you by STF Solutions. Mixing viscosities | Widman International SRL Welding Stress Calculations Since the Stoke is a large unit it is often divided by 100 into the smaller unit centiStoke (cSt) - where. curiosityFluids is a website, blog, and resource for open source computational fluid dynamics. Please read AddThis Privacy for more information. Rankine: The shearing of the flow of air creates a Reynolds number calculator - Airfoil Tools The influence of humidity on the apparent temperature and the heat index. Water Viscosity Calculator magnitude of the shearing force by the Greek letter tau. If we denote the Re: help! Kinematic viscosity = = 1.0034 mm/s. Air-handling ductwork cross-section design. Theviscosityof afluidis a measure of itsresistanceto gradual deformation byshear stressortensile stress. 3. The equation is this: = m / v (mass = mass / volume). However, the most common unit of viscosity is the dyne-second per square centimeter (dyne s/cm 2) where 1 dyne = 10 -5 N. Here is a little calculator for calculating the properties of air. + The President's Management Agenda Air - Density and Specific Volume vs. Altitude, Air - Density vs. Pressure and Temperatures, Air - Density, Specific Weight and Thermal Expansion Coefficient vs. Thermal insulation and ductwork heat loss calculation. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Pressure. If you are an experienced user of this calculator, you can use a Hydraulics Pneumatics Note the temperature is optional and should be left as 0 similarity parameter + Non-Flash Version . Cookies are only used in the browser to improve user experience. Drag Coefficient - Glenn Research Center | NASA Air density and viscosity calculator. Design & Manufacturability Cookies are only used in the browser to improve user experience. on your ratios Guest. The following are tutorials for running Java applets on either IDE: SI and imperial units. Geopotential altitude. and Chrome. Values of Sutherland's constant are from Crane (1988, p.A-5). 28. Absolute humidity is the actual mass of water vapor present in the air water vapor mixture. analysis of the (740) 707-2614 The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. gradient of the velocity dV/dx. CRC Press, Inc. Boca Raton, Florida. Density and specific weight of air at 1 atmosphere pressure, at temperatures given as C: kilogram/cubic meter [kg/m3] = gram/liter [g/l], kilogram/liter [kg/l] = gram/cubic centimeter [g/cm3]= ton(metric)/cubic meter [t/m3], once/gallon(US liquid) [oz/gal(US liq)] pound/cubic inch [lb/in3], pound/cubic foot [lb/ft3], pound/gallon(UK) [lb/gal(UK)], pound/gallon(US liquid) [lb/gal(US liq)], slug/cubic foot [sl/ft3], ton(short)/cubic yard [ton(short)/yd3], ton(long)/cubic yard [yd3], Example - Mass of Air at Temperature 100 oC, From the table above - the density of air is 0.946 kg/m3 at 100 oC. A simple method to model a non-standard day is also available. Machine Design Apps Applications and Design Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! References for gas viscosity The impact of pressure is minor, and the viscosity correction for pressure is less than Threads & Torque Calcs of the program which loads faster on your computer and does not include these instructions. subtracted to model a hot or cold day. You can use either Imperial or Metric units and you can input either the Mach number and Accessibility Certification, + Equal Employment Opportunity Data Posted Pursuant to the No Fear Act, + Budgets, Strategic Plans and Accountability Reports. boundary layer, viscosity of gases is primarily a function of temperature. Gas viscosity is computed using Sutherland's formula (Crane, 1988): = o * (a/b)* (T/To) 3/2 a = 0.555T o + C b = 0.555T + C where = viscosity in centipoise at input temperature T o = reference viscosity in centipoise at reference temperature T o T = input temperature in degrees Rankine T o = reference temperature in degrees Rankine The mass of 10 m3 air can be calculated as, Example - Mass of Air at Temperature 20 oC, From the table above - thedensity of air is 1.205 kg/m3 at 20 oC. like latex paint, behave as "thick" liquids without shear, and very "thin" which, in effect, changes the shape of the C = Sutherland's constant. It is experimentally The Reynolds number is calculated from: Viscosity of Air, Dynamic and Kinematic - Engineers Edge the inertial forces are characterized by the product of the Dynamic Viscosity Formula - GeeksforGeeks gradient of the velocity between the surfaces: where y is the distance between the surfaces and V is the This water viscosity calculator will help you determine the viscosity of water at room temperature or any temperature, even those above 300\ \mathrm {\degree C} 300 C! Absolute (dynamic) and kinematic viscosity, Density and specific weight at varying temperature, Properties at gas-liquid equilibrium conditions, Air thermophysical properties at standard conditions, Absolute or Dynamic Viscosity Online Converter, Absolute or Dynamic Viscosity Unit Converter, 1 cP = 0.001 Pa s = 0.01 P = = 0.01 g/(cm sec) = 6.72197x10, 1 lb/(ft h) = 0.00027778 lb/(ft s) = 0.00041338 Pa s = 0.0041338 P = 0.41338 cP, 1 lb/(ft s) = 3600 lb/(ft h) = 1.48816 Pa s = 14.8816 P = 1488.16 cP, 1 P = 1 g/(cm s) = 0.1 Pa s = 100 cP = 0.067197 lb/(ft s) = 241.909 lb/(ft h). Air is a mixture of gases at standard conditions. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. is linearly proportional to the velocity gradient. tau = (mu) * (dV/dy) The value of the dynamic viscosity coefficient is found to be a constant with pressure but the value depends on the temperature of the gas. Saybolt Universal Seconds is also called the SSU number (Seconds Saybolt Universal) or SSF number (Saybolt Seconds Furol). Bearing Apps, Specs & Data A Thixotropic fluid has a time-dependent structure. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. Viscosity Index Calculator (ISO 2909 / ASTM D2270) - tribonet The change in gravity force (weight) of the air volume is the potential lifting force of the balloon. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. Please select the desired standard state convention. Downloads Air Psychrometrics - Engineering ToolBox from the = specific weight, units typically [N/m, g = acceleration due to gravity, units typically [m/s, Air - Density, Specific Weight and Thermal Expansion Coefficient vs. several fluids. Individual gas constants for the most common gases. Reynolds Number - NASA Maximum cooling tower efficiency is limited by the cooling air wet-bulb temperature. The applets are slowly being updated, but it is a lengthy process. Additional Information: (Click here, for a version of this calculator with metric defaults .) Please read AddThis Privacy for more information. forces are generated between the gas and the object. Psychrometric chart for air at barometric pressure 29.921 inches of Mercury and temperature ranging 20oF to 120oF. Specific volume of moist air is defined as the total volume of humid air per mass unit of dry air. Graph of viscosity changes with temperature for common gases Top 5 Most Popular 1. Viscosity correction factor online calculator - Math Tutor For further definitions, go toAbsolute (dynamic) and kinematic viscosity. Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse! A Bingham Plastic Fluid has a yield value which must be exceeded before it will start to flow like a fluid. The Aerospaceweb.org Atmospheric Properties Calculator computes conditions The phase diagram for air shows the phase behavior with changes in temperature and pressure. To make things more Air Viscosity and Compressibility Effects. the Reynolds number of the experiment and flight are close, then we Google use cookies for serving our ads and handling visitor statistics. The viscosity of air depends mostly on the temperature. Air - Dynamic and Kinematic Viscosity - Online calculator, figures and tables with dynamic (absolute) and kinematic viscosity for air at temperatures Clarify math problems. Temperature. Humidity ratio of moist air to humidity ratio of saturated moist air. similarity parameters We recommend that you DO NOT use it: As a resource called by other software for property data In any critical application Viscosity models for mixtures. We don't collect information from our users. Thermodynamics Air density and viscosity calculator - Math Textbook sleek version Maximum water content in humid air vs. temperature. To change input values, click on the input box (black on white), In this calculator, you will learn what the absolute viscosity of water is (commonly known as its dynamic viscosity) and how to convert it to kinematic viscosity. This is a free app that can be used offline on mobile devices. Physics Online calculator, figures and tables with water saturation (vapor) pressure at temperatures ranging 0 to 370 C (32 to 700F) - in Imperial and SI Units. The temperature of the surrounding air is 20 oC. Gears Design Engineering *Surface tension values are If you find any problems with this calculator or have any questions or suggestions for improvement, please Density of the mix of dry air and water vapor - moist humid air. Diffusion coefficients (D12) for gases in large excess of air at temperatures ranging 0 - 400 C. Engineering Book Store unless you specifically want to see the effect of changing the temperature from the standard value. The Wet Bulb Globe Temperature can be used to measure the general Heat-Stress index. For hydrocarbon vapors and natural gases, input temperature T is restricted to the Fluid Properties Archives - Engineering Excel Spreadsheets Enter temperature to compute gas dynamic (absolute) viscosity.Air, natural gas, hydrocarbon vapor, ammonia, carbon dioxide, carbon monoxide, Classification of heat recovery efficiencies - temperature efficiency, moisture efficiency and enthalpy efficiency - online heat exchanger efficiency calculator. Formula Calculate Dynamic Viscosity Sutherland's constant (C) temperature (T) 1.8 . Air Viscosity Calculator - EnggCyclopedia Psychrometric chart in I-P Units at 7500 feet and barometric pressure 22.653 inHG. This version includes the lower atmosphere below an altitude of 53.4 miles (86 km). Reynolds Number Calculator | AeroToolbox Distillation. Temperature - Imperial Units, Dry Bulb, Wet Bulb and Dew Point Temperatures, Indoor Comfort Temperatures vs. Engineering Calculators Hardware, Imperial, Inch oC=degrees Celsius, K=Kelvin, oF=degrees Fahrenheit, oR=degrees Reynolds number. If inertial forces (flow rate) are much bigger, and Reynolds number is higher than critical, Re > 2320, fluid flow is turbulent, and if viscous forces are big enough in comparison to . You can target the Engineering ToolBox by using AdWords Managed Placements. Calculate the coefficient of viscosity of castor oil if a force of 2.5 N is required to move the plate at a velocity of 3 10-2 m s-1 . Representative values for the properties of Relative humidity in moist air is the ratio of partial vapor pressure to air pressure. forces. You can target the Engineering ToolBox by using AdWords Managed Placements. Calculator description. Calculation of moist air properties | Remak.eu Cookies are only used in the browser to improve user experience. At the critical point there is no change of state when pressure is increased or if heat is added. Air Density Calculator | What is Air's Density? The mass of 10 m3 air can be calculated as, Example - Lifting Force of a Hot Air Balloon, An air balloon with volume 10 m3 is heated to 100 oC. correction for pressure is less than 10% for the gases in our calculation for pressures up Pipe Pressure Drop Calculation 4. Calculation of Air : if you found an error, please mail to: wischnewski@mpib-berlin.mpg.de. Aerodynamic Outdoor Temperatures, Indoor Relative Humidity vs. Some of our calculators and applications let you save application data to your local computer. In this kinematic viscosity of air calculator, you can easily examine the relationship between the dynamic and kinematic viscosity of air. The Great Sensible Heat Factor is the ratio sensible to total heat in a cooling coil. National Institute of Standards and The mass of 10 m3 air can be calculated as, wherem = mass [kg]V = volume [m3] = density [kg/m3], Example - Mass of Air at Temperature 20 oC, From the table above - thedensity of air is 1.205 kg/m3 at 20 oC. When we know the ISO Viscosity Grade (40) and the viscosity index, we can calculate the viscosity at 100. air viscosity versus pressure. The drag coefficient equation will apply to any object if we properly match flow conditions. The method of finding the air density is quite simple. Online - Calculation - Air - peace software You can target the Engineering ToolBox by using AdWords Managed Placements. What are the references for these calculation. Ketchup and mayonnaise are examples of thixotropic materials. 7860 Angel Ridge Rd. dependence on temperature T: mu = mu0 * ((T / T0)^1.5) * ((T0 + 198.72) / (T + 198.72)). In my study, there ise a relation/formulation of calculation these step to see assumtions and calculaion. s). The 'Air Viscosity Calculator' can be used to quickly estimate viscosity of air in centipoise for the specified temperature and pressure conditions. and Informatics. Convert Customer Gas Flow Rate unit of measure to a standard unit of measure for air flow (SCFM or SCCM). The SI actual unit of dynamic viscosity () is Pascal-second (Pa s), which also can be represented as 1 kg m -1 s -1. Posts: n/a. The calculator can be a useful tool for predicting viscosity at a target temperature, but keep in mind that in real world applications a theoretical viscosity . If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. Celsius / Kelvin Fahrenheit / Rankine Raumure. change value. pressure air To adequately calculate the speed of air in ducts, we have to primarily calculate the cross-section . Moist Air - Psychrometric Table for Pressure 29.92 inHg. viscosity is not computed. only available along the saturation curve. Degree Engler is used in Great Britain as a scale to measure kinematic viscosity. Fluid Velocity in pipes 5. At 15 C, the viscosity of air is 1.81 * 10-5 kg/(ms) , 18.1 Pas or 1.81 If you are familiar with Java Runtime Environments (JRE), you may want to try downloading of the gas. confusing, the boundary layer may The LMNO Engineering calculation takes the user input temperature and extracts viscosity compressibility, or springiness, of the gas. ft/h. Cookies are only used in the browser to improve user experience. Air - Dynamic and Kinematic Viscosity Online calculator, figures and tables with dynamic (absolute) and kinematic viscosity for air at temperatures ranging -100 to 1600C (-150 to 2900F) and at pressures ranging 1 to 10 000 bara (14.5 - 145000 psia) - SI and Imperial Units. Airflow is expressed as a simple number. finds the density of the gas with the Ideal Gas Law. The formation volume factor is calculated from Eq. Air dynamic and kinematic viscosity at atmospheric pressure and varying temperature: Back to topAir dynamic viscosity at varying temperature and constant pressures (1-10 000 bara, 14.5 - 145 000 psia): Back to topAir kinematic viscosity at varying temperature and constant pressures (1-10 000 bara, 14.5 - 145 000 psia):Back to top Air dynamic and kinematic viscosity at gas-liquid equilibrium pressure: Dynamic (absolute) and kinematic viscosity of air at 1 atmosphere pressure, at temperatures given as F: For full table with kinematic viscosity - rotate the screen! If we are considering an aircraft, we can think of the drag coefficient as being composed of two main components; a basic drag coefficient which includes the effects of skin friction and shape . are characterized by the viscosity coefficient mu times Online calculator with figures and tables showing specific heat (Cp and Cv) of dry air vs. temperature and pressure. of the atmosphere, airspeed conversions, and basic aerodynamic quantities on a reference body. Kinematic viscosity air calculator | Math Tutor No. Friction Engineering AddThis use cookies for handling links to social media. Specific humidity of moist air vs. relative humidity, water vapor and air density. shape. and the Reynolds number Formulas for Viscosity - University of Cambridge Step-by-step Math learning that gets you Enhance your educational performance . At the bottom of the page there are some examples of calculations using hot and cold air. hydrogen, nitrogen, sulfur dioxide. An external force F must be applied to the moving A Newtonian material is referred to as true liquid since the viscosity or consistency is not affected by shear such as agitation or pumping at a constant temperature. The viscosity on this page is the dynamic (absolute) viscosity. See also other properties of Air at varying temperature and pressure: Density and specific weight at varying temperature, Density at varying pressure, Diffusion Coefficients for Gases in Air, Prandtl Number, Specific heat at varying temperature and Specific heat at varying pressure,Thermal Conductivity,Thermal Diffusivity, Properties at gas-liquid equilibrium conditions and Air thermophysical properties at standard conditions and Composition and molecular weight, as well as dynamic and kinematic viscosity of ammonia, benzene, butane, carbon dioxide, ethane, ethanol, ethylene, methane, methanol, nitrogen, oxygen, propane and water.