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The Sci-Hub project supports Open Access movement in science. Research should be published in open access, i.e. be free to read. The Open Access is a new and advanced form of scientific communiion, which is going to replace outdated subscription models. We stand against unfair gain that publishers collect by creating limits to knowledge

Water Pressure and Depth Calculator at - Blue Robotics

8/12/2021· Calculator. This calculator determines the water depth to reach a given pressure or the pressure at a given depth. You can enter the depth or pressure input with most common units and it will be converted automatically. This calculator does not add air pressure at the surface – the results are relative to the surface pressure.

Standard LP gas pressures and natural gas pressure

16/5/2016· The minimum gas supply pressure must be 1" water column (0.036 psi or 249 pa or 2.5 Millibars ) above the manifold pressure printed on the appliance data plate; The maximum gas supply pressure must not exceed 14" water column (0.5 psi or 3487 pa or 34.9 Millibars) The natural gas supply pressure for this specific appliance, your appliance may be different should …

R404A Pressure-Temperature Chart - iGas USA

*Red Italics Indie Inches of Mercury Below Atmospheric Pressure Saturation Pressure-Temperature Data for R404A (psig)*

Pressure Drop Basics & Valve Sizing - Watts

431 0.5 4 7.5 11 16 20 25 29 38.5 432 0.5 7 15 20 30 36 45 52 67 433 0.5 10 243451648093 123 434 0.5 15 40 55 82 101 125 146 190 1432 0.5 1.5 14 18 27 33 40 46 60 1434 0.5 5 32 45 66 80 100 117 152 * Minimum flow when installed at or near hot water source with recirculating tempered water & continuously recirculating pump. Why is Pressure Drop Important? Pressure …

MiniVap VP/VPL Vision - PETROLAB

MINIVAP VP Vision is a highly versatile portable vapor pressure tester that features best-in-class precision and a pressure range of 0-2000 kPa. It is the first analyzer that demonstrates excellence in engineering by earning certifies for robustness and durability. Based on Grabner´s cutting-edge Cockpit™ technology, the instrument offers

What is the Density of Air? - Omni Calculator

15/2/2022· The density of air is usually denoted by the Greek letter ρ, and it measures the mass of air per unit volume (e.g. g / m 3).Dry air mostly consists of nitrogen (~78 %) and oxygen (~21 %).The remaining 1 % contains many different gases, among others, argon, carbon dioxide, neon or helium.However, the air will cease to be dry air when water vapor appears.

Table 3. Compressed Water and Superheated Steam - NIST

0.042 240 2957.8 9.0635 240 11 833. 0.084 512 2957.4 8.7431 240 7885.5 0.126 81 2957.1 8.5554 24 136. 0.041 432 2977.4 9.1015 250 12 064. 0.082 892 2977.1 8.7811 250 8039.9 0.124 38 2976.8 8.5935 24 598. 0.040 654 2997.2 9.1388 260 12 295. 0.081 333 2996.9 8

Vapor Pressure Calculator | Clausius-Clapeyron Equation

3/9/2019· In your chemistry classes, a teacher might give you an exercise to find the vapor pressure or enthalpy of vaporization. Let''s solve one to help you fully understand the Clausius-Clapeyron equation. Water has an enthalpy of vaporization of 40660 J / mol (ΔH vap). Its vapor pressure is 102325 Pa (P 1) at a temperature of 280 K (T 1).

ASME Boiler and Pressure Vessel Code

Code (e.g., B31.1, PTC 25, NQA-1), the required edition as of July 1, 2013 is listed. The specific effective Addenda will be referenced in the applicable Boiler and Pressure Vessel Code section. Later editions of these referenced books will be required if and when referenced by the applicable Boiler and Pressure Vessel Code section. * Sections II and IX are not required for asselers. …

Calculator: Saturated Steam Table by Pressure | TLV - A

Online calculator with Saturated Steam Table by Pressure. Includes 53 different calculations. Equations displayed for easy reference.

Phase Change Sub Tables - Michigan State University

Table C.1cSI Superheated Vapor Table for Steam in SI Units 15 Table C.1dSI Compressed Liquid Table for Steam in SI Units 25 . 3 Table C.1aSI Saturation Temperature Table for Steam in SI Units T Psat vf vg vfg hf hg hfg uf ug ufg sf sg sfg C kPa m3/kg m3/kg m3/kg kJ/kg kJ/kg kJ/kg kJ/kg kJ/kg kJ/kg kJ/kg K kJ/kg K kJ/kg K 0 0.6119 0.000995 205.94 205.93 0.9007 2500.02 …

Thermodynamic properties of water: tabulation from - NIST

4.References [1] ReleaseonthelAPWSFormulation1995fortheThermodynamicPropertiesofOrdinary WaterSubstanceforGeneralandScientificUse,Fredericia,Denmark,1996.Thisrelease

Convert mm Hg to kPa - Conversion of Measurement Units

1 pascal is equal to 0.0075006157584566 mm Hg, or 0.001 kPa. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between millimeters mercury and kilopascals. Type in your own nuers in the form to convert the units! ›› Quick conversion chart of mm Hg to kPa. 1 mm Hg to kPa = 0.13332 kPa. 5 mm Hg to kPa = …

Appendix B: Property Tables for Water

Tables B-1 and B-2 present data for saturated liquid and saturated vapor. Table B-1 is presented information at regular intervals of temperature while Table B-2 is presented at regular intervals of pressure. Table B-3 presents data for superheated vapor over a matrix of temperatures and pressures. Table B-4 presents data for compressed liquid over a matrix of temperatures and …

Liquid ammonia volume to weight conversion - Aqua-Calc

1 cubic meter of liquid ammonia weighs 682.6 kilograms [kg] 1 cubic foot of liquid ammonia weighs 42.61333 pounds [lbs] Liquid ammonia weighs 0.6826 gram per cubic centimeter or 682.6 kilogram per cubic meter, i.e. density of liquid ammonia is equal to 682.6 kg/m³; at -33.41°C (-28.138°F or 239.74K) at standard atmospheric pressure.

Saturated Steam - Properties with Imperial Units

1 psi (lbf/in2) = 6894.8 Pa (N/m2) = 0.06895 bar. Properties of Saturated Steam - SI Units. Note! Gauge Pressure = Absolute Pressure - Atmospheric Pressure. NTP - Normal Temperature and Pressure - is defined as 20oC (293.15 K, 68oF) and 1 atm ( 101.325 kN/m2, 101.325 kPa, 14.7 psia, 0 psig, 30 in Hg, 760 torr) Vacuum steam is the general term

kg/cm² to psi Conversion Table - SensorsONE

1 psi = 6,894.76 pascals (Pa) 1 kg/cm ² = 98066.5 pascals (Pa) psi value x 6,894.76 Pa = kg/cm2 value x 98066.5 Pa; psi value = kg/cm2 value x 14.2233; kg/cm² pressure related products-760mmHg to +20 kg/cm² pressure transmitter with HART coms-1 to 20 kg/cm² digital pressure gauge for live computer data acquisition; 20 kg/cm² range 5Vdc output pressure transducer for …

Water Heating Calculator for Time, Energy, and Power

13/3/2016· 1 litre of water is 1kg 1 meter cube = 1000 Ltrs M = 7 meter cube = 7000 Ltrs or 7000 Kg The heat capacity Cp of water is 4.186kJ/kg-C ΔT = 80-20 = 60 C So, the energy required to raise the temperature of 7000 kg of water from 20C to 80C is: Energy E = m•Cp•ΔT = 7000 x 4.186 x 60 = 1758120 kJ or = 488 .36 KW Power = Energy / time

Refrigerant (R-134a) - Freon

V = 3Volume of superheated vapor in ft /lb d f = 1/v f = Density of saturated liquid in lb/ft3 d g = 1/v g = Density of saturated vapor in lb/ft3 h f = Enthalpy of saturated liquid in Btu/lb h fg = Enthalpy of vaporization in Btu/lb h g = Enthalpy of saturated vapor in Btu/lb H = Enthalpy of superheated vapor in Btu/lb s = Entropy of saturated liquid in Btu/(lb)(°R) s g = Entropy of …

Technical Overview of Volatile Organic Compounds | US EPA

9/2/2021· IUPAC''s standard is a temperature of 0° C (273, 15 K, 32° F) and an absolute pressure of 100 kPa (14.504 psi), NIST''s definition is a temperature of 20° C (293, 15 K, 68° F) and an absolute pressure of 101.325 kPa (14.696 psi). Volatility is indied by a substance''s vapor pressure. It is a tendency of a substance to vaporize or the speed

40-20-1-.01 Standards for Petroleum Products - Georgia

Page 1 of 17 40-20-1-.01 Standards for Petroleum Products Pursuant to the provisions and requirements of O.C.G.A. Section 10-1-155, the following rules and regulations are hereby promulgated and the standards and specifiions for petroleum products used for heating, cooking, illuminating, and power purposes are hereby defined. The following

R-Value and Densities Chart

Vapor barrier -- 0.0 Common Rules of Thu Type of Building Section R-Value Wood frame walls 3 plus R-value of the insulation used Floors above unheated spaces 2 plus R-value of the insulation used Ceilings 1-1/2 plus R-value of the insulation Single-glazed windows 0.88 Double-glazed windows 1.67 Doors with glass Use R-value of the glass for the entire door Doors …

PROPYLENE GLYCOL PPG - National Oceanic and Atmospheric

9.11 Ratio of Specific Heats of Vapor (Gas): 1.073 9.12 Latent Heat of Vaporization: 306 Btu/lb = 170 cal/g = 7.12 X 105 J/kg 9.13 Heat of Coustion: –10,310 Btu/lb = –5,728 cal/g = –239.8 X 105 J/kg 9.14 Heat of Decomposition: Not pertinent 9.15 Heat of Solution: Not pertinent 9.16 Heat of Polymerization: Not pertinent 9.17 Heat of Fusion: Currently not available 9.18 Limiting …

40-20-1-.01 Standards for Petroleum Products

ignition engine fuels, except for enforcement purpose, the vapor pressure may be 1 psi higher than the values in (a)5 a(4). if the ethanol (only) content is 9-10% by volume (3.1 - 3.7 mass % oxygen as ethanol). It is recommended that 10 volume % ethanol blends with RBOB meet vapor pressure requirements. 5. The water tolerance of oxygenated fuel

Saturation Properties for R134a (Pressure Table) (updated

Superheated Vapor Properties - (0.06 MPa - 0.24 MPa) Superheated Vapor Properties - (0.28 MPa - 0.7 MPa) Superheated Vapor Properties - (0.8 MPa - 1.6 MPa) Superheated Vapor Properties - (1.8 MPa - 2.0 MPa) Source of data: NIST Chemistry WebBook - accessed Jan 2008


Table A–23EIdeal-gas properties of water vapor, H 2 O Table A–26EEnthalpy of formation, Gibbs function of formation, and absolute entropy at 77°C, 1 atm Table A–27EProperties of some common fuels and hydrocarbons Figure A–31EPsychrometric chart at 1 atm total pressure PROPERTY TABLES AND CHARTS (ENGLISH UNITS) 957 APPENDIX2 cen2932x_ch19 …

R-134a Refrigerant Pressure Temperature Chart - Refrigerant HQ

25/5/2019· R-134a Refrigerant Pressure Temperature Chart. Noveer 22, 2021. May 25, 2019 by Alec Johnson. R-134a is the most common refrigerant found in automobiles today. It has been in use since the early 1990’s and now, in 2019, we are beginning to see it’s popularity wane with the rise of the new HFO refrigerant known as R-1234yf.


Refer to ARPM publiion IP-11-1, "Guide for Use, Testing and Inspection of Steam Hose." • Water changes to hot water and phases of steam when subjected to heat and pressure. The greater the pressure, the higher the temperature required to achieve and maintain a steam phase. If steam escapes, dangerous quantities of heat may be released very

Steam Tables Pressure vs Temperature - Valvesonline

Steam Tables. Steam and temperature posess a reliable realtionship whereby if the pressure of the steam is know its temperature can be predicted (and vice versa). Below is a graph and table of this relationship. Gauge Pressure (BAR) Temperature °C. Gauge Pressure (BAR) Temperature °C. Gauge Pressure (BAR)