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Temperature

energy. Temperature is a scalar quantity having direction, some of these include area, density, energy, entropy, length, mass, power, pressure, speed, volume, and work Temperature Typical Units International System of Units, SI English Units Celsius...

Specific Gravity of Gas

hydrogen. The density of the reference gas (such as dry air or hydrogen) can be looked up or calculated based on its molar mass and other properties. For example, if the specific gravity of a gas is 0.7, it means that the gas is 0.7 times as dense as...

Weight Density

Symbol English Metric $ W_{\rho} $ (Greek symbol rho) = weight density $lbf-in \;/\; ft^3$ $kg-mm \;/\; m^3$ $ m $ = mass $lbm$ $kg$ $ g $ = gravity $ft \;/\; sec^2$ $m \;/\; s^2$ $ g_c $ = gravity conversion constant $in^4$...

Volume Differential

“piece” of volume over which a function can be evaluated before being summed or integrated to obtain totals such as mass, charge, fluid flow, or energy. The volume differential is written as $dV$, and its specific form depends on the coordinate system...

Total Work

\sqrt{ v_f^2 - \dfrac{ 2 \cdot W }{ m } }\) Symbol English Metric $ W_t $ = work $ft^3\;/\;sec$ $m^3\;/\;s$ $ m $ = mass $lbm$ $kg$ $ v_f $ = final velocity $ft\;/\;sec$ $m\;/\;s$ $ v_i $ = initial velocity $ft\;/\;sec$ $m\;/\;s$...

Thermal Energy

T \;=\; \dfrac{ Q }{ m \cdot c } \) Symbol English Metric $ Q $ = Thermal Energy $Btu$ $kg-m^2\;/\;s^2$ $ m $ = Mass $ lbm $ $ kg $ $ c $ = Specific Heat $Btu\;/\;lbm-F$ $kJ\;/\;kg-K$ $ \Delta T $ = Temperature Differential \(^\circ...

Superheated Steam

properties compared to saturated steam. It contains higher levels of internal energy and carries more heat energy per unit mass. Superheated steam is often used in power generation applications, such as driving steam turbines, as the higher temperature...

Nuclear Reaction

A nuclear reaction is a process in which the nucleus of an atom is altered, resulting in a change in the atomic number or mass of the nucleus. Nuclear reactions can be either spontaneous or induced, and can release or absorb large amounts of energy....

Moment

in motion, the body is in static equilibrium. In engineering dynamics, the sum of the moments about a point is equal to the mass times the acceleleration. Moment Arm A moment arm, also called lever arm or torque arm, is the perpendicular distance from a...

Cube

\) $ a $ = edge $ in $ $ mm $ Weight of a Cube formula $ m \;=\; a^3 \cdot \rho $ Symbol English Metric $ m $ = mass $ lbm $ $ kg $ $ \rho $ (Greek symbol rho) = density $lbm\;/\;ft^3$ $kg\;/\;m^3$ $ a $ = edge $ in $ $ mm $

Volume

or solid. Volume is a scalar quantity having direction, some of these include area, density, energy, entropy, length, mass, power, pressure, speed, temperature, and work. Volumes are used in many applications, including architecture, engineering,...

Pipe Insulation

to both energy efficiency and equipment longevity. Insulation Density The density of pipe insulation refers to the mass per unit volume of the insulation material. It is typically expressed in terms of kilograms per cubic meter (kg/m³) or pounds per...

Globe Valve

the valve is fully open. Body - The body is the main pressure containing of the valve and can identified as it forms the mass of the valve. It contains all of the valve’s internal parts that will come in contact with the substance being controlled by...

Flowmeter

Meter Electromagnetic Meter Swirl Meter Turbine Meter Ultrasonic Doppler Meter Ultrasonic Transit-tine Meter Vortex Meter Mass Flowmeter Coriolis Meter Thermal Meter Open-channel Flowmeter Weir Meter Flume Meter

ASME Standards List

- Method for Establishing Installation Effects on Flowmeters ASME MFC-11 - Measurement of Fluid Flow by Means of Coriolis Mass Flowmeters ASME MFC-12M - Measurement of Fluid Flow in Closed Conduits Using Multiport Averaging Pitot Primary Elements ASME...

Air Flow Rate

often measured using a device called a flow meter, which uses various techniques such as thermal anemometry, pitot tubes, or mass flow sensors to measure the rate of air flow. In some cases, air flow rate can also be estimated using mathematical models...

Formula Symbols - B

- $B$ - buoyancy $lbf$ $N$ $kg - m - s^{-2}$ - $B$, $\;F_b$ - buoyancy force $lbf$ $N$ $kg - m - s^{-2}$ - $m_b$ - buoyancy mass $lbm$ $kg$ $kg$ - $\gamma '$ gamma buoyant unit weight $\large{ \frac{lbm}{ft^3} }$ $\large{ \frac{N}{m^3} }$ $N- m^{-3}$ -...

Formula Symbols - G

\frac{J}{kmol-K} }$ $G$ - gas density $\large{\frac{lbm}{ft^3}}$ $\large{\frac{kg}{m^3}}$ $kg-m^{-3}$ - $G_ga$ - gas mass transfer coefficient $\large{\frac{1}{sec}}$ $\large{\frac{1}{s}}$ $1-s^{-1}$ - $p_l$ - gas pressure loss through piping...

Formula Symbols - S

- - sun escape velocity $\large{\frac{ft}{sec}}$ $\large{\frac{m}{s}}$ $m-s^{-1}$ $6.15$ $\large{\frac{m}{sec}}$ - - sun mass $lbm$ $kg$ $km$ $1.98892\;x\;10^{30}$ $kg$ - - sun mean density $\large{\frac{lbm}{ft^3}}$ $\large{\frac{kg}{m^3}}$ $kg-m^{-3}$...

Formula Symbols - T

$W$ $kg - m^2 - s^{-2} - A^{-1}$ - $W$ - total load from a uniform distribution $lbm$ $N$ $kg - m - s^{-2}$ - $m_t$ - total mass $lbm$ $kg$ $kg$ - $p_t$ - total pressure $\large{\frac{lbf}{in^2}}$ $Pa$ $kg- m^{-1}-s^{-2}$ - $\eta_{tp}$ eta total pump...

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