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Blog
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Business
Product
Introduce
Contact
EN
English
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Deutsch
日本語
简体中文
한국어
Tiếng Việt
Heat calculation - Selecting air conditioner (air conditioner)
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Thermal calculation - Selective calculation ...
General specifications
The length of the building, L
m
The width of the building, W
m
The height of the building, H
m
Outdoor temperature, t
N
o
C
Room temperature, t
T
o
C
Outdoor air humidity, φ
N
%
Room air humidity, φ
T
%
Heat is emitted by electrical machinery Q
1
Total capacity of electrical machinery and equipment
kW
Heat from artificial light sources Q
2
Calculated according to the power W
Incandescent lamp capacity
W
Fluorescent lamp capacity
W
Calculated in W / m
2
Lighting capacity, q
S
W / m
2
(Look up table)
Human heat is radiated Q
3
Number of people in the room
Space type
Hotel, office
Theatre
Schools
Store
Airport, pharmacy
Bank
Restaurant
Light factory
Disco
Workshop
Heavy factory
Heat carried by the product Q
4
There is no heat carried by the product
There is heat carried by the product
Flow rate of product in and out: G
4
kg / s
Specific heat capacity of product: C
p
kJ / kg.
o
C
The amount of emitted moisture (if any) in 1 unit of time: W
4
kg / s
Temperature t
1
o
C
Temperature t
2
o
C
Heat is radiated from the surface of the thermal device Q
5
There is no heat exchanger
Know the heat device surface temperature t
w
Heat device surface area, F
w
m
2
Wall temperature, t
w
o
C
Know the temperature of the moving liquid inside the tube t
f
Area, F
f
m
2
Temperature, t
f
o
C
Heat due to solar radiation entering room Q
6
Radiant heat through glass
Glass surface area, F
k
m ^ 2
% F
Solar radiation through glass, R
W / m
2
(Look up table)
Altitude above sea level, H
m
Dew point temperature, t
S
o
C
It was cloudy
Wood frame
It's not cloudy
Metal frame
Glass type, ε
k
Basic glasses
Glass in 6mm thick, flat
Spectrafloat glass, bronze-brown, 6 mm
Sunscreen, gray, 6 mm
Sunscreen brown copper eyebrow, 12 mm
Calorex glass, blue, 6 mm
Stopray glass, yellow, 6 mm
Glass in coated reflective membrane RS20, 6 mm
Glass in coated reflective film A18, 4 mm
Curtain, ε
m
There is no curtain
Light-colored shutters
Medium color shutters
Dark shutters
Curtain type metalon
The Dutch brella veil
Solar heat is radiated through the enclosure
Heat transfer coefficient, k
m
W / m
2
.K
The color of the roof, φ
m
Dark color
Medium color
Bright colours
Absorption coefficient, ε
S
(Look up table)
Heat due to air entering room Q
7
The parameters have been entered above.
Heat transfer through the enclosure Q
8
The thickness of the wall, δ
m
Coefficient to take into account the position of the enclosure with the outside air,
(Look up table)
Coefficient of heat on the inner surface of the enclosure structure, α
T
W / m
2
.K
(Look up table)
Coefficient of radiant heat of outer surface of the enclosure structure, α
N
W / m
2
.K
(Look up table)
The material's thermal conductivity, λ
W / m
2
.K
(Look up table)
The amount of moisture emitted by people W
1
Active status
Static
Children under 12 years old
Intellectual labor
Light labor
Average labor
Heavy labor
Dining room, hotel
Disco
GH
The amount of moisture evaporated from the W products
2
No moisture evaporates from the products
There is moisture evaporating from the products
Product flow rate, G
kg / s
Thuy part of sp when put in, y
1
%
Thuy part of sp when put in, y
2
%
The amount of moisture due to adiabatic evaporation from the damp floor W
3
There is no adiabatic moisture evaporating from the damp floor
There is an adiabatic amount of moisture evaporating from the damp floor
Wet floor area, F
S
m
2
Wet thermometer temperature, t
uh
o
C
The amount of moisture carried by hot steam W
4
Steam flow to the room, Gh
kg / s
Calculation results
Refrigeration capacity of equipment, Q0
Airflow rate in / out, G
Drying capacity of the treatment equipment, W
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