Moist Air Properties (MA)

Global humid air properties for units connected to the humid air network.

blockType: AcausalFoundation.MoistAir.Properties

Path in the library:

/Physical Modeling/Fundamental/Moist Air/Utilities/Moist Air Properties (MA)

Description

The unit Moist Air Properties (MA) defines humid air properties that act as global parameters for all units connected to the network. The humid air mixture consists of dry air, water vapour and an optional impurity gas. By default, carbon dioxide is used as the impurity gas.

The dry air, water vapour and impurity gas are assumed to be semi-ideal gases. Pressure, temperature, and density obey the ideal gas law. The other properties are functions of temperature. You specify them as one-dimensional arrays corresponding to the vector Temperature vector.

A block Moist Air Properties (MA) can be connected to each topologically distinct humid air network in the circuit. If no such block is connected to the circuit, the blocks in the circuit use the humid air properties corresponding to the parameters of the Moist Air Properties (MA) block by default.

Ports

Conserving

# A — connection port
`humid air

Details

The humid air port, connects the unit to the humid air network. You can connect it to any point on the circuit. When you connect a unit Moist Air Properties (MA), Engee automatically identifies the humid air units connected to a particular circuit and transfers the humid air properties to all units in the circuit.

Program usage name

port

Parameters

Dry Air

# Dry air specific gas constant — the ratio of the universal gas constant to the molar mass of dry air
J/(K*kg) | kJ/(K*kg) | Btu_IT/(lbm*deltadegR)

Details

Ratio of the universal gas constant to the molar mass of dry air.

Units	`J/(Kkg)` \| `kJ/(Kkg)` \| `Btu_IT/(lbm*deltadegR)`
Default value	`287.047 J/(K*kg)`
Program usage name	`R_a`
Evaluatable	Yes

Details

A vector of temperature values used to find other properties as a function of temperature. The properties of dry air, water vapour and impurity gases have the same vector of temperature values.

Units	`K` \| `degC` \| `degF` \| `degR` \| `deltaK` \| `deltadegC` \| `deltadegF` \| `deltadegR`
Default value	`[-56.55, -50:10:-10…, -5:1:5…, 10:10:350…] degC`
Program usage name	`T_TLU`
Evaluatable	Yes

# Dry air specific enthalpy vector — vector of specific enthalpy values
fpm^2 | fps^2 | kph^2 | mph^2 | kJ/kg | m^2/s2 | cm^2/s2 | ft^2/s2 | in^2/s2 | km^2/s2 | mi^2/s2 | mm^2/s2 | Pa/(kg/m^3) | bar/(kg/m^3) | psi/(lbm/ft^3)

Details

A vector of dry air specific enthalpy values used for a one-dimensional table search based on the corresponding temperature value. The size of the vector should be the same as the size of the vector of temperature values.

Units	`fpm^2` \| `fps^2` \| `kph^2` \| `mph^2` \| `kJ/kg` \| `m^2/s2` \| `cm^2/s2` \| `ft^2/s2` \| `in^2/s2` \| `km^2/s2` \| `mi^2/s2` \| `mm^2/s2` \| `Pa/(kg/m^3)` \| `bar/(kg/m^3)` \| `psi/(lbm/ft^3)`
Default value	[342.416126230579, 349.005511058471, 359.063577249119, 369.119948684177, 379.175469465129, 389.230944678417, 394.258910928084, 395.264534937366, 396.270171013290, 397.275819932805, 398.281482472874, 399.287159410541, 400.292851523015, 401.298559587728, 402.304284382408, 403.310026685143, 404.315787274435, 409.344891803130, 419.404921755863, 429.468036401264, 439.535033154839, 449.606720928652, 459.683919949603, 469.767460521911, 479.858181001348, 489.956925196484, 500.064539372946, 510.181869006204, 520.309755403634, 530.449032296018, 540.600522480870, 550.765034584465, 560.943359995745, 571.136270013102, 581.344513234296, 591.568813210327, 601.809866375885, 612.068340261954, 622.344871990218, 632.640067043998, 642.954498306460, 653.288705353699, 663.643193987949, 674.018435994423, 684.414869104228, 694.832897145098, 705.272890361557, 715.735185886199, 726.220088344236, 736.727870574087, 747.258774447567, 757.813011774199] kJ/kg
Program usage name	`h_a_TLU`
Evaluatable	Yes

# Dry air dynamic viscosity vector — vector of dynamic viscosity values
P | cP | reyn | s*uPa

Details

A vector of dry air dynamic viscosity values used for a one-dimensional table search based on the corresponding temperature value. The size of the vector should be the same as the size of the vector of temperature values.

Units	`P` \| `cP` \| `reyn` \| `s*uPa`
Default value	[14.2568883320012, 14.6140127728333, 15.1517277055779, 15.6806860159119, 16.2012351072083, 16.7137043125028, 16.9670071730589, 17.0174380628150, 17.0677930842452, 17.1180725309876, 17.1682766951315, 17.2184058672268, 17.2684603362935, 17.3184403898301, 17.3683463138234, 17.4181783927569, 17.4679369096204, 17.7156358640698, 18.2056751785154, 18.6887903574900, 19.1652344664982, 19.6352478927873, 20.0990591036580, 20.5568853601578, 21.0089333871663, 21.4554000014051, 21.8964726992323, 22.3323302062775, 22.7631429910631, 23.1890737447833, 23.6102778293792, 24.0269036959922, 24.4390932757886, 24.8469823450548, 25.2507008663546, 25.6503733074314, 26.0461189394339, 26.4380521159325, 26.8262825340948, 27.2109154792923, 27.5920520543128, 27.9697893942740, 28.3442208682439, 28.7154362685068, 29.0835219883356, 29.4485611890712, 29.8106339572472, 30.1698174524429, 30.5261860464955, 30.8798114546565, 31.2307628592324, 31.5791070262086] s*uPa
Program usage name	`mu_a_TLU`
Evaluatable	Yes

# Dry air thermal conductivity vector — vector of thermal conductivity values
W/(m*K) | mW/(K*m) | Btu_IT/(hr*ft*deltadegR)

Details

A vector of dry air thermal conductivity values to be used for a one-dimensional table search for the corresponding temperature value. The size of the vector must be the same as the size of the vector of temperature values.

Units	`W/(mK)` \| `mW/(Km)` \| `Btu_IT/(hrftdeltadegR)`
Default value	[19.8808489374933, 20.4162454629695, 21.2248743590758, 22.0232452890903, 22.8117314495857, 23.5906913619588, 23.9767075412237, 24.0536399901750, 24.1304826682191, 24.2072359051629, 24.2839000294007, 24.3604753679152, 24.4369622462801, 24.5133609886625, 24.5896719178249, 24.6658953551279, 24.7420316205333, 25.1214164701832, 25.8738283029331, 26.6180150229276, 27.3542674377332, 28.0828634735341, 28.8040686837224, 29.5181367785657, 30.2253101618423, 30.9258204644224, 31.6198890677835, 32.3077276126633, 32.9895384896798, 33.6655153099498, 34.3358433546100, 35.0007000027879, 35.6602551380254, 36.3146715334901, 36.9641052165342, 37.6087058133173, 38.2486168743070, 38.8839761815308, 39.5149160384798, 40.1415635435708, 40.7640408480637, 41.3824653993118, 41.9969501701893, 42.6076038755117, 43.2145311762238, 43.8178328720941, 44.4176060836121, 45.0139444237490, 45.6069381602018, 46.1966743687041, 46.7832370779530, 47.3667074066625] mW/(K*m)
Program usage name	`k_a_TLU`
Evaluatable	Yes

# Minimum valid pressure — lowest permissible pressure
Pa | GPa | MPa | atm | bar | kPa | ksi | psi | uPa | kbar

Details

The lowest permissible pressure in the humid air network.

Units	`Pa` \| `GPa` \| `MPa` \| `atm` \| `bar` \| `kPa` \| `ksi` \| `psi` \| `uPa` \| `kbar`
Default value	`1.0 kPa`
Program usage name	`p_min`
Evaluatable	Yes

# Maximum valid pressure — maximum allowable pressure
Pa | GPa | MPa | atm | bar | kPa | ksi | psi | uPa | kbar

Details

The highest pressure allowed in a wet air network.

Units	`Pa` \| `GPa` \| `MPa` \| `atm` \| `bar` \| `kPa` \| `ksi` \| `psi` \| `uPa` \| `kbar`
Default value	`Inf MPa`
Program usage name	`p_max`
Evaluatable	Yes

Details

The lowest temperature allowed in a humid air network.

Units	`K` \| `degC` \| `degF` \| `degR` \| `deltaK` \| `deltadegC` \| `deltadegF` \| `deltadegR`
Default value	`-56.55 degC`
Program usage name	`T_min`
Evaluatable	Yes

Details

The highest temperature allowed in a humid air network.

Units	`K` \| `degC` \| `degF` \| `degR` \| `deltaK` \| `deltadegC` \| `deltadegF` \| `deltadegR`
Default value	`350.0 degC`
Program usage name	`T_max`
Evaluatable	Yes

# Atmospheric pressure — absolute ambient pressure
Pa | GPa | MPa | atm | bar | kPa | ksi | psi | uPa | kbar

Details

Absolute ambient pressure.

Units	`Pa` \| `GPa` \| `MPa` \| `atm` \| `bar` \| `kPa` \| `ksi` \| `psi` \| `uPa` \| `kbar`
Default value	`0.101325 MPa`
Program usage name	`p_ref`
Evaluatable	Yes

Details

Absolute ambient temperature.

Units	`K` \| `degC` \| `degF` \| `degR` \| `deltaK` \| `deltadegC` \| `deltadegF` \| `deltadegR`
Default value	`20.0 degC`
Program usage name	`T_ref`
Evaluatable	Yes

Water Vapor

# Water vapor specific gas constant — universal gas constant divided by the molar mass of water vapour
J/(K*kg) | kJ/(K*kg) | Btu_IT/(lbm*deltadegR)

Details

The universal gas constant divided by the molar mass of water vapour.

Units	`J/(Kkg)` \| `kJ/(Kkg)` \| `Btu_IT/(lbm*deltadegR)`
Default value	`461.523 J/(K*kg)`
Program usage name	`R_w`
Evaluatable	Yes

# Water vapor saturation pressure vector — vector of water vapour saturation values
Pa | GPa | MPa | atm | bar | kPa | ksi | psi | uPa | kbar

Details

Vector of water vapour saturation values as a function of temperature for usage in one-dimensional tables.

Humid air becomes saturated when the partial pressure of water vapour equals the saturation pressure of water vapour. Therefore, condensation can occur. The size of the vector should be the same as the size of the vector of temperature values.

The properties of dry air, water vapour and impurity gases have the same vector of temperature values.

Units	`Pa` \| `GPa` \| `MPa` \| `atm` \| `bar` \| `kPa` \| `ksi` \| `psi` \| `uPa` \| `kbar`
Default value	[1.71168953425982e-06, 3.93770601979424e-06, 1.28411717710344e-05, 3.80051394873809e-05, 0.000103239029002090, 0.000259873810798063, 0.000401741022116384, 0.000437454836117844, 0.000476040820618202, 0.000517704666185737, 0.000562664883741207, 0.000611212677444345, 0.000657088049117899, 0.000705987905898279, 0.000758082381149132, 0.000813549384183233, 0.000872574861129522, 0.00122818386934022, 0.00233921476677690, 0.00424668834054807, 0.00738442748706953, 0.0123512704340234, 0.0199458019246787, 0.0312006356960619, 0.0474147199263783, 0.0701823607447713, 0.101417977921310, 0.143375967241115, 0.198665399739302, 0.270259606559999, 0.361500961984849, 0.476101381081492, 0.618139196722055, 0.792053183687694, 1.00263456881210, 1.25501792086105, 1.55467186826983, 1.90739066433297, 2.31928772772542, 2.79679245576864, 3.34665187151016, 3.97593907083533, 4.69207105435535, 5.50283947408830, 6.41645928168037, 7.44164254361690, 8.58770832955728, 9.86474556030261, 11.2838558865497, 12.8575218898034, 14.6001810568052, 16.5291642526045] MPa
Program usage name	`water_vapor_saturation_pressure_TLU`
Evaluatable	Yes

# Water specific enthalpy of vaporization vector — vector of values of specific enthalpy of vapour formation
fpm^2 | fps^2 | kph^2 | mph^2 | kJ/kg | m^2/s2 | cm^2/s2 | ft^2/s2 | in^2/s2 | km^2/s2 | mi^2/s2 | mm^2/s2 | Pa/(kg/m^3) | bar/(kg/m^3) | psi/(lbm/ft^3)

Details

A vector of values of the difference between the specific enthalpy of saturated water vapour and the specific enthalpy of saturated liquid water as a function of temperature, used for a one-dimensional table search. The size of the vector should be the same as the size of the vector of temperature values. The properties of dry air, water vapour and impurity gases have the same vector of temperature values.

Units	`fpm^2` \| `fps^2` \| `kph^2` \| `mph^2` \| `kJ/kg` \| `m^2/s2` \| `cm^2/s2` \| `ft^2/s2` \| `in^2/s2` \| `km^2/s2` \| `mi^2/s2` \| `mm^2/s2` \| `Pa/(kg/m^3)` \| `bar/(kg/m^3)` \| `psi/(lbm/ft^3)`
Default value	[2836.88241275372, 2837.81392500514, 2838.63937175807, 2838.73099296280, 2838.06905313927, 2836.62597341095, 2835.60023952573, 2835.37006381376, 2835.13143158077, 2834.88429145066, 2834.62859062897, 2500.93420564316, 2498.55329907119, 2496.17495082036, 2493.79885912205, 2491.42474723191, 2489.05236104642, 2477.20875029194, 2453.54955988604, 2429.83856603313, 2406.00136954922, 2381.97406342174, 2357.69101156389, 2333.08088387814, 2308.06565480412, 2282.56034405021, 2256.47287422313, 2229.70428017508, 2202.14968030993, 2173.69998896199, 2144.24368406447, 2113.66758247452, 2081.85585110571, 2048.68725710494, 2014.03141249899, 1977.74499232840, 1939.66849592886, 1899.62342931686, 1857.40930169838, 1812.79975416601, 1765.53721731251, 1715.32525772152, 1661.81700477787, 1604.59703745016, 1543.15346163340, 1476.83692476464, 1404.80240352424, 1325.92091736114, 1238.61667822208, 1140.51029870180, 1027.62017777647, 892.733785613825] kJ/kg
Program usage name	`h_water_vaporization_TLU`
Evaluatable	Yes

# Water vapor specific enthalpy vector — vector of specific enthalpy values
fpm^2 | fps^2 | kph^2 | mph^2 | kJ/kg | m^2/s2 | cm^2/s2 | ft^2/s2 | in^2/s2 | km^2/s2 | mi^2/s2 | mm^2/s2 | Pa/(kg/m^3) | bar/(kg/m^3) | psi/(lbm/ft^3)

Details

A vector of water vapour specific enthalpy values used for a one-dimensional table search based on the corresponding temperature value. The size of the vector should be the same as the size of the vector of temperature values. The properties of dry air, water vapour and impurity gases have the same vector of temperature values.

Units	`fpm^2` \| `fps^2` \| `kph^2` \| `mph^2` \| `kJ/kg` \| `m^2/s2` \| `cm^2/s2` \| `ft^2/s2` \| `in^2/s2` \| `km^2/s2` \| `mi^2/s2` \| `mm^2/s2` \| `Pa/(kg/m^3)` \| `bar/(kg/m^3)` \| `psi/(lbm/ft^3)`
Default value	[2396.55944251649, 2408.68643343608, 2427.19880311410, 2445.70216589700, 2464.18429108356, 2482.62529466839, 2491.82135326629, 2493.65801517920, 2495.49372578218, 2497.32843835745, 2499.16210446923, 2500.99462758899, 2502.83092214066, 2504.66652236210, 2506.50140563013, 2508.33554889100, 2510.16892865793, 2519.32352241995, 2537.56068088674, 2555.67742615292, 2573.64032239980, 2591.41091791010, 2608.94550377010, 2626.19492016262, 2643.10444358428, 2659.61377634497, 2675.58278696023, 2696.18462565450, 2716.49989553741, 2736.62352109570, 2756.61216047011, 2776.50561773853, 2796.33378922508, 2816.11979583049, 2835.88181423877, 2855.63430574511, 2875.38889327595, 2895.15500577172, 2914.94035964689, 2934.75132290228, 2954.59319330244, 2974.47041285505, 2994.38673458964, 3014.34535328009, 3034.34900867103, 3054.40006755764, 3074.50058946898, 3094.65237953784, 3114.85703128106, 3135.11596137801, 3155.43043805905, 3175.80160435813] kJ/kg
Program usage name	`h_w_TLU`
Evaluatable	Yes

# Water vapor dynamic viscosity vector — vector of dynamic viscosity values
P | cP | reyn | s*uPa

Details

A vector of water vapour dynamic viscosity values used for a one-dimensional table search based on the corresponding temperature value. The size of the vector should be the same as the size of the vector of temperature values. The properties of dry air, water vapour and impurity gases have the same vector of temperature values.

Units	`P` \| `cP` \| `reyn` \| `s*uPa`
Default value	[6.81365662228272, 7.04953750742707, 7.40970098298307, 7.76991278093907, 8.13017290129507, 8.49048134405107, 8.67065368632907, 8.70668960445667, 8.74272600580827, 8.77876289038387, 8.81480025818347, 8.85083810920707, 8.88687644345467, 8.92291526092627, 8.95895456162187, 8.99499434554147, 9.03103461268507, 9.21124319676307, 9.57169660671907, 9.93219833907507, 10.2927483938311, 10.6533467709871, 11.0139934705431, 11.3746884924991, 11.7354318368551, 12.0962235036111, 12.4570634927671, 12.8179518043231, 13.1788884382791, 13.5398733946351, 13.9009066733911, 14.2619882745471, 14.6231181981031, 14.9842964440591, 15.3455230124151, 15.7067979031711, 16.0681211163271, 16.4294926518831, 16.7909125098391, 17.1523806901951, 17.5138971929511, 17.8754620181071, 18.2370751656631, 18.5987366356191, 18.9604464279751, 19.3222045427311, 19.6840109798871, 20.0458657394431, 20.4077688213991, 20.7697202257551, 21.1317199525111, 21.4937680016671] s*uPa
Program usage name	`mu_w_TLU`
Evaluatable	Yes

# Water vapor thermal conductivity vector — vector of thermal conductivity values
W/(m*K) | mW/(K*m) | Btu_IT/(hr*ft*deltadegR)

Details

A vector of water vapour thermal conductivity values used for a one-dimensional table search based on the corresponding temperature value. The size of the vector should be the same as the size of the vector of temperature values. The properties of dry air, water vapour and impure gases have the same vector of temperature values.

Units	`W/(mK)` \| `mW/(Km)` \| `Btu_IT/(hrftdeltadegR)`
Default value	[11.4628821597600, 11.9419974889350, 12.6763585869350, 13.4142088849350, 14.1555483829350, 14.9003770809350, 15.2740998799350, 15.3489491157350, 15.4238332435350, 15.4987522633350, 15.5737061751350, 15.6486949789350, 15.7237186747350, 15.7987772625350, 15.8738707423350, 15.9489991141350, 16.0241623779350, 16.4005020769350, 17.1557983749350, 17.9145838729350, 18.6768585709350, 19.4426224689350, 20.2118755669350, 20.9846178649350, 21.7608493629350, 22.5405700609350, 23.3237799589350, 24.1104790569350, 24.9006673549350, 25.6943448529350, 26.4915115509350, 27.2921674489350, 28.0963125469350, 28.9039468449350, 29.7150703429350, 30.5296830409350, 31.3477849389350, 32.1693760369350, 32.9944563349350, 33.8230258329350, 34.6550845309350, 35.4906324289350, 36.3296695269350, 37.1721958249350, 38.0182113229350, 38.8677160209350, 39.7207099189350, 40.5771930169350, 41.4371653149350, 42.3006268129350, 43.1675775109350, 44.0380174089350] mW/(K*m)
Program usage name	`k_w_TLU`
Evaluatable	Yes

# Water vapor diffusivity in air — smoothing factor for reverse flows
mm^2/s | St | cSt | newt | m^2/s | in^2/s

Details

Coefficient for diffusive water vapour flow in a moist air mixture due to differences in water vapour concentration. When the mixture flow is reversed, the mass flow rate of water vapour at the ports smooths from an upstream value to a downstream value based on the diffusion coefficient.

Units	`mm^2/s` \| `St` \| `cSt` \| `newt` \| `m^2/s` \| `in^2/s`
Default value	`25.0 mm^2/s`
Program usage name	`D_w`
Evaluatable	Yes

Trace Gas

# Trace gas model — method of modelling impurity gases in an air mixture
None | Track mass fraction only | Track mass fraction and gas properties

Details

Select how the unit models the amount of impurity gases in the air mixture:

None - no impurity gas is present. A humid air mixture consists of only dry air and water vapour. Any non-zero impurity gas level values in the parameters and target variables of blocks connected to the circuit are ignored. All connections to impurity gas source blocks in the model are also ignored. Thus, you do not need to modify the model depending on your choice of impurity gas modelling.
Track mass fraction only - The level of impurity gases may be non-zero and may change during the modelling process. However, it is assumed that the amount of impurity gases is small enough to have negligible effect on the liquid properties of the moist air mixture.
Track mass fraction and gas properties - The level of impurity gas may be non-zero and may change during the simulation. The liquid properties of a moist air mixture depend on the amount of impurity gas in the mixture.

Values	`None` \| `Track mass fraction only` \| `Track mass fraction and gas properties`
Default value	`None`
Program usage name	`trace_gas_model`
Evaluatable	No

# Trace gas specific gas constant — the ratio of the universal gas constant to the molar mass of the impurity gas
J/(K*kg) | kJ/(K*kg) | Btu_IT/(lbm*deltadegR)

Details

The ratio of the universal gas constant to the molar mass of the impurity gas.

Dependencies

To use this parameter, set the parameters Trace gas model to the value of Track mass fraction only or Track mass fraction and gas properties.

Units	`J/(Kkg)` \| `kJ/(Kkg)` \| `Btu_IT/(lbm*deltadegR)`
Default value	`188.923 J/(K*kg)`
Program usage name	`R_g`
Evaluatable	Yes

# Trace gas specific enthalpy vector — vector of specific enthalpy values
fpm^2 | fps^2 | kph^2 | mph^2 | kJ/kg | m^2/s2 | cm^2/s2 | ft^2/s2 | in^2/s2 | km^2/s2 | mi^2/s2 | mm^2/s2 | Pa/(kg/m^3) | bar/(kg/m^3) | psi/(lbm/ft^3)

Details

A vector of specific enthalpy values of impurity gases to be used for a one-dimensional table search based on the corresponding temperature value. The size of the vector should be the same as the size of the vector of temperature values. The properties of dry air, water vapour and impurity gases have the same vector of temperature values.

Dependencies

To use this parameter, set the parameters Trace gas model to . Track mass fraction and gas properties.

Units	`fpm^2` \| `fps^2` \| `kph^2` \| `mph^2` \| `kJ/kg` \| `m^2/s2` \| `cm^2/s2` \| `ft^2/s2` \| `in^2/s2` \| `km^2/s2` \| `mi^2/s2` \| `mm^2/s2` \| `Pa/(kg/m^3)` \| `bar/(kg/m^3)` \| `psi/(lbm/ft^3)`
Default value	[439.555216260064, 444.670268200251, 452.538618847003, 460.487124258496, 468.522588768941, 476.649415958793, 480.747985387250, 481.570543187620, 482.394052398751, 483.218514288831, 484.043930029015, 484.870300696555, 485.697627277859, 486.525910671489, 487.355151691079, 488.185351068185, 489.016509455051, 493.186704139431, 501.599194953048, 510.107689961685, 518.711611080182, 527.410026793075, 536.201764778798, 545.085474203452, 554.059675505208, 563.122805485367, 572.273250969190, 581.509373027928, 590.829525105886, 600.232066705818, 609.715373581392, 619.277845178105, 628.917909922924, 638.634028838794, 648.424697859328, 658.288449140109, 668.223851601449, 678.229510889093, 688.304068901113, 698.446202998750, 708.654624994591, 718.928079991818, 729.265345132425, 739.665228299475, 750.126566808087, 760.648226111439, 771.229098541268, 781.868102096908, 792.564179292476, 803.316296068366, 814.123440770426, 824.984623198037] kJ/kg
Program usage name	`h_g_TLU`
Evaluatable	Yes

# Trace gas dynamic viscosity vector — vector of dynamic viscosity values
P | cP | reyn | s*uPa

Details

A vector of impurity gas dynamic viscosity values used for a one-dimensional table search based on the corresponding temperature value. The size of the vector should be the same as the size of the vector of temperature values. The properties of dry air, water vapour and impurity gases have the same vector of temperature values.

Dependencies

To use this parameter, set the parameters Trace gas model to . Track mass fraction and gas properties.

Units	`P` \| `cP` \| `reyn` \| `s*uPa`
Default value	[10.8921054191698, 11.2215357085649, 11.7233300740382, 12.2234238147811, 12.7215124453467, 13.2173328890673, 13.4643203184773, 13.5136406274989, 13.5629347523850, 13.6122025024997, 13.6614436900741, 13.7106581301692, 13.7598456406398, 13.8090060420983, 13.8581391578796, 13.9072448140062, 13.9563228391538, 14.2012926853717, 14.6890687376044, 15.1738428124161, 15.6554929043332, 16.1339159800463, 16.6090257998657, 17.0807510097148, 17.5490334645512, 18.0138267508952, 18.4750948814453, 18.9328111390399, 19.3869570507278, 19.8375214755778, 20.2844997922255, 20.7278931741254, 21.1677079421287, 21.6039549853963, 22.0366492428350, 22.4658092382469, 22.8914566632375, 23.3136160026627, 23.7323141980278, 24.1475803447965, 24.5594454200432, 24.9679420372927, 25.3731042257492, 25.7749672314310, 26.1735673380029, 26.5689417053362, 26.9611282240413, 27.3501653844040, 27.7360921583200, 28.1189478929720, 28.4987722151178, 28.8756049449796] s*uPa
Program usage name	`mu_g_TLU`
Evaluatable	Yes

# Trace gas thermal conductivity vector — vector of thermal conductivity values
W/(m*K) | mW/(K*m) | Btu_IT/(hr*ft*deltadegR)

Details

A vector of impurity gas thermal conductivity values to be used for a one-dimensional table search by the corresponding temperature value. The size of the vector should be the same as the size of the vector of temperature values. The properties of dry air, water vapour and impurity gases have the same vector of temperature values.

Dependencies

To use this parameter, set the parameters Trace gas model to . Track mass fraction and gas properties.

Units	`W/(mK)` \| `mW/(Km)` \| `Btu_IT/(hrftdeltadegR)`
Default value	[10.4894306788430, 10.9507672150864, 11.6661979603080, 12.3925597397640, 13.1299519771612, 13.8778409888416, 14.2554325416312, 14.3312274189707, 14.4071122346908, 14.4830860227061, 14.5591478179508, 14.6352966574703, 14.7115315815553, 14.7878516349070, 14.8642558678259, 14.9407433374142, 15.0173131087819, 15.4013644809060, 16.1751373988038, 16.9558134611595, 17.7432208682398, 18.5366976599676, 19.3360988502003, 20.1412225692689, 20.9517507672929, 21.7672310558863, 22.5871115634685, 23.4107980865695, 24.2377021890869, 25.0672663781241, 25.8989689893876, 26.7323183575140, 27.5668446164644, 28.4020933015927, 29.2376215872816, 30.0729965057542, 30.9077942826816, 31.7416001931033, 32.5740086297993, 33.4046232539953, 34.2330571812868, 35.0589331874899, 35.8818839295189, 36.7015521793910, 37.5175910702657, 38.3296643536716, 39.1374466671854, 39.9406238119064, 40.7388930391313, 41.5319633456945, 42.3195557774861, 43.1014037407076] mW/(K*m)
Program usage name	`k_g_TLU`
Evaluatable	Yes

# Trace gas diffusivity in air — smoothing factor for reverse flows
mm^2/s | St | cSt | newt | m^2/s | in^2/s

Details

A coefficient for the diffusive flow of impurity gases in a moist air mixture due to differences in impurity gas concentration. When reversing the mixture flow, the mass flow rate of the impurity gas at the ports is smooth from an upstream value to a downstream value based on the diffusion coefficient.

Dependencies

To use this parameter, set the parameters Trace gas model to the value of Track mass fraction only or Track mass fraction and gas properties.

Units	`mm^2/s` \| `St` \| `cSt` \| `newt` \| `m^2/s` \| `in^2/s`
Default value	`16.0 mm^2/s`
Program usage name	`D_g`
Evaluatable	Yes