5-1

thermodynamic temperature

T

K

Θ

5-2

Celsius temperature

t

°C

Θ

5-3.1

linear expansion coefficient

α_l

K⁻¹

Θ⁻¹

5-3.2

cubic expansion coefficient

α_V

K⁻¹

Θ⁻¹

5-3.3

relative pressure coefficient

α_p

K⁻¹

Θ⁻¹

5-4

pressure coefficient

β

Pa/K

M·L⁻¹·T⁻²·Θ⁻¹

5-5.1

isothermal compressibility

ϰ_T

Pa⁻¹

M⁻¹·L·T²

5-5.2

isentropic compressibility

ϰ_S

Pa⁻¹

M⁻¹·L·T²

5-6.1

heat

Q

J

M·L²·T⁻²

5-6.2

latent heat

Q

J

M·L²·T⁻²

5-7

heat flow rate

Φ

W

M·L²·T⁻³

5-8

density of heat flow rate

q

W/m²

M·T⁻³

5-9

thermal conductivity

λ

W/(m·K)

M·L·T⁻³·Θ⁻¹

5-10.1

coefficient of heat transfer

K

W/(m²·K)

M·T⁻³·Θ⁻¹

5-10.2

surface coefficient of heat transfer

h

W/(m²·K)

M·T⁻³·Θ⁻¹

5-11

thermal insulance

M

m²·K/W

M⁻¹·T³·Θ

5-12

thermal resistance

R

K/W

M⁻¹·L⁻²·T³·Θ

5-13

thermal conductance

G

W/K

M·L²·T⁻³·Θ⁻¹

5-14

thermal diffusivity

a

m²/s

L²·T⁻¹

5-15

heat capacity

C

J/K

M·L²·T⁻²·Θ⁻¹

5-16.1

specific heat capacity

c

J/(kg·K)

L²·T⁻²·Θ⁻¹

5-16.2

specific heat capacity at constant pressure

c_p

J/(kg·K)

L²·T⁻²·Θ⁻¹

5-16.3

specific heat capacity at constant volume

c_V

J/(kg·K)

L²·T⁻²·Θ⁻¹

5-16.4

specific heat capacity at saturated vapour pressure

c_sat

J/(kg·K)

L²·T⁻²·Θ⁻¹

5-17.1

ratio of specific heat capacities

γ

1

1

5-17.2

isentropic exponent

ϰ

1

1

5-18

entropy

S

J/K

M·L²·T⁻²·Θ⁻¹

5-19

specific entropy

s

J/(kg·K)

L²·T⁻²·Θ⁻¹

5-20.1

energy

E

J

M·L²·T⁻²

5-20.2

internal energy

U

J

M·L²·T⁻²

5-20.3

enthalpy

H

J

M·L²·T⁻²

5-20.4

Helmholtz energy

A

J

M·L²·T⁻²

5-20.5

Gibbs energy

G

J

M·L²·T⁻²

5-21.1

specific energy

e

J/kg

L²·T⁻²

5-21.2

specific internal energy

u

J/kg

L²·T⁻²

5-21.3

specific enthalpy

h

J/kg

L²·T⁻²

5-21.4

specific Helmholtz energy

a

J/kg

L²·T⁻²

5-21.5

specific Gibbs energy

g

J/kg

L²·T⁻²

5-22

Massieu function

J

J/K

M·L²·T⁻²·Θ⁻¹

5-23

Planck function

Y

J/K

M·L²·T⁻²·Θ⁻¹

5-24

Joule-Thomson coefficient

μ_JT

K/Pa

M⁻¹·L·T²·Θ

5-25.1

efficiency

η

1

1

5-25.2

maximum efficiency

η_max

1

1

5-26

specific gas constant

R_s

J/(kg·K)

L²·T⁻²·Θ⁻¹

5-27

mass concentration of water

w

kg/m³

M·L⁻³

5-28

mass concentration of water vapour

v

kg/m³

M·L⁻³

5-29

mass ratio of water to dry matter

u

1

1

5-30

mass ratio of water vapour to dry gas

r

1

1

5-31

mass fraction of water

w_H2O

1

1

5-32

mass fraction of dry matter

w_d

1

1

5-33

relative humidity

φ

1

1

5-34

relative mass concentration of vapour

φ

1

1

5-35

relative mass ratio of vapour

ψ

1

1

5-36

dew-point temperature

T_d

K

Θ