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Summer air-conditioning system E13/18.5 TOTAL    
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fast calculation for the sizing of a summer to centralized air-conditioning system with a single battery (cooling and pre-heating)    
PROJECT DATA temperature ° C relative humidity (RU) % X g/kg J kcal/kg J kJ/kg V mc/kg pressure
  total     mbar
partial pressure     mbar Dew point °C Wet bulb temperature °C Q=m3/h (calculated) Type of Construction Type of plant    
EXTERNAL TEMPERATURE
   
INDOOR TEMPERATURE   preview results    
cubic m3 (mc)
SATURATION Pressure (Hpa) Total air mc/h
SUPPLY AIR
External air mc / h
RU% resultant
Chiller kW
DATE PROJECT Elaborate n. Battery cold kW
 
ADDRESS customer I.D. Humidification winter kW
DESIGNER Telephone Fax E-mail:
LOCAL/ENVIRONMENTS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Destination      
Width
Length
total sq.m.
Height
Free entry
Totale mc
                                       
PEOPLE
Amount
Coefficient 1 to 10
Sensible heat 1
Latent heat W
INTERNAL LOADS WATT
Equipment / Machinery
other loads
Free entry
Sensible heat 2
SUNSTROKE TRANSMISSION      
Indentations for construction
Exposure
     
Ceiling
     
Floors above
     
Total recesses W
Values from other sources (dedicated software)
Free entry
     
Sensible heat 3

CS1 + CS2 + CS3
Heat Sensitive Total W
Latent heat environment W    
Total latent heatl W
Total sensible heat W
TOTAL HEAT W    
CALCULATION OF FRESH AIR      
     
Entering Free mc/h
Total external Air mc/h
END DATA ENTRY      
DATE PROJECT elaborate n.            
ADDRESS customer I.D.            
DESIGNER Telephone Fax E-mail:      
actual environmental loads W    
Parts outside air      
Recirculated air
Final results      
COOLING Frig/h kWt EER kW 3PH A 400V A 220V                 Kcal/h mc W al mc      
Refrigeration unit   Battery Air handling units   to condition mc      
  mc/h A.ext. A.ric recirculation spares/h     Frig/h kWt   temperature °C Winter data          
Air handling units         EXTERNAL For winter humidification      
                        INDOOR          
RESULTS GENERAL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Air in individual rooms mc/h    
recirculated air mc/h    
External air mc/h    
∆t l/s mc/h
cold water pump
2 steps Minimum (5.5 liters/kW) Partitioning group refrigerator Stepped
buffer tank liters
humidification winter °C u.r. % X  g/kg p t - mbar pp - mbar P = amount of steam required in the room in g/h
External temperature V = external air                  
ambient conditions 1,2 = specific weight at 21 ° C 1013 mbar
mc/h P. s. a. Dx g/h kW AX = air to be humidified - environment
P = V x 1,2 x Delta X Note: the air to be humidified is only to renew
POST HEATING The choice of the flow temperature should be done on the main screen
TOTAL mc/h Cal.Spec ∆t kW % Prevista kW
C.s.= mc/h x 0,29 x Delta t - % environmental loads Saturation - Environment
Air handling units flow air
heater batteries (AHU) The choice of the flow temperature should be done on the main screen
POST HEATING mc/h Cal.Spec ∆t kW % Prevista
C.s.= mc/h x 0,29 x Delta t - % environmental loads Saturation - Air handling units flow air
 Environment
Batteries in the environment
POST HEATING mc/h Cal.Spec ∆t kW % Prevista  
C.s.= mc/h x 0,29 x Delta t - % environmental loads Air handling units flow air - Environment
individual environments 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
POST HEATING W    
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  Summer air-conditioning system E13/18.5  
  DATE                       External temperature °C  
  PROJECT   Pump   Refrigeration unit   Indoor temperature  
  ADDRESS Pompa mc/h mc/h   kWt kW 3PH A 400V A 220V   Type of plant  
  DESIGNER        
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environment air mc/h Post 1 kW
environment air mc/h Post 2 kW
   
environment air mc/h Post 3 kW
   
environment air mc/h Post 4 kW
environment air mc/h Post 5 kW
Tank liters
environment air mc/h Post 6 kW
  min    
environment air mc/h Post 7 kW
environment air mc/h Post 8 kW
   
environment air mc/h Post 9 kW
   
environment air mc/h Post 10 kW
environment air mc/h Post 11 kW
   
environment air mc/h Post 12 kW
   
environment air mc/h Post 13 kW
   
environment air mc/h Post 14 kW
   
environment air mc/h Post 15 kW
environment air mc/h Post 16 kW
   
Total 0 0,0
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Return air
expulsion
external
cooling coils
Pre AHU
AHU
Humidifier
mc/h
mc/h
mc/h
kW
kW
mc/h
kW
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Heat produced by people E10.2/18.5  
Heat production by persons  
coefficient Activity level of people typical example produced heat  kcal/h heat-sensitive kcal/h latent hea kcal/h produced heat W heat-sensitive W latent hea   W produced heat  BTU heat-sensitive BTU latent hea BTU  
1 sitting at rest theater, cinema 86 52 34 100 60 40 341 205 136  
2 seated, light work desks offices, apartments, hotel 103 56 47 120 65 55 409 222 188  
3 sitting, eating restaurant 146 65 82 170 75 95 580 256 324  
4 seated, light work of typing offices 129 65 65 150 75 75 512 256 256  
5 upright, slow walk or light work department stores, banks 159 77 82 185 90 95 631 307 324  
6 light work at the desk industry 198 86 112 230 100 130 785 341 444  
7 light work with machine tools, I walk 5 km/h industry 262 86 176 305 100 205 1.041 341 700  
8 moderate dance ballrooms 323 103 219 375 120 255 1.280 409 870  
9 fag industry 404 142 258 470 165 300 1.604 563 1.024  
10 very heavy work, athletic competitions industry, gyms 452 159 292 525 185 340 1.792 631 1.160  
note
25 the tabular values refer to an ambient temperature of 25.5 ° C B.A. For a temp. Of 26.5 ° C, the total heat remains unchanged, while the sensible heat is reduced by 8% and increases the latent heat of '8%  
2 the total heat produced by the persons referred to normal compositions of men, women and children for the listed activities. The heat produced by women is about l '85% of that produced by a man, while that of children is of about 75%  
3 for the restaurants values include the addition of 18.5 w due to the hot plate (9.5 w sensitive, latent 9 W)  
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 Outdoor air for person E10.4/18.5  
Air flow rates recommended outside air m3/h person - ASHRAE Standard 62/1989  
type of environment Crowding max pers / 100 sq.m. Outside air flow m3/h person liters/s person  
Conference room
50 36 10
Bar - cocktail lounge
100 54 (1) 15 (1)
restaurants
70 36 (1) 10 (1)
hotel rooms
54 (2) 15 (2)
offices
7 36 10
Cafeterias - fast food
100 36 10
classrooms
50 29 8
bookstores
20 29 8
smoking rooms
70 108 (3) 30 (3)
aspect Sale
100 29 (3) 8 (3)
residences
(4) (4)
Department stores
      Ground floor and basement floor 30 5,4 (5) 1,5 (5)
      upper floors
20 3,6 (5) 1,0 (5)
      Lounges proof clothing
3,6 (5) 1,0 (5)
      Stores
5 2,7 (5) 0,75 (5)
Photographers
10 29 8
theater ticket
60 36 10
theaters atria
150 36 10
Theaters auditoria
150 29 8
hairdressers man
25 29 8
Hairdressers woman
25 47 13
florists
8 29 8
Pet shops
18 (5) 5 (5)
(1) recommendable the use of high efficiency filters
(2) L/s per room
(3) Recommendable localized extractions
(4) 0.35 environment / h volumes, but not less than 8 L / s (29 m3/h) by Person      
(5) L/s per square meter of surface environment          
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Air changes for hour E10.5/18.5  
Air changes for hour (1)  
Environment min max          
residential     1 2 (1) With 8 parts of air times, or even less, you get the elimination of pollution caused by people occupying. Greater numbers of spare parts, in temperate climates, also arrange for the dissipation of heat and fumes. In tropical climates  
classrooms
2 3
garages
6 8
banks
2 4
Bar hotel
4 6
Coffee
10 12
darkrooms (photographic) 10 15
Churches     0,5 1          
Cinema (2)   10 15          
Bunks (on board ship) 10 20 (2) Where you smoke the number of spare parts must be doubled.
schools or commercial kitchens 15 20
Residential kitchens
10 15
Factories (in general)   6 10          
foundries     20 30 152.jpg        
Fornaci.     30 60          
bread ovens   20 30          
Mushroom culture   10 20          
workshops   4 6          
laundries     20 30          
painting rooms   30 60          
canteens     4 6          
workshops   6 10          
Hospitals (wards in general) 4 6          
swimming pools   20 30          
chicken coops   6 10          
piggeries     6 10          
Restaurants (2)   6 10          
togethers     8 10          
dance halls (2)   6 8          
banquet halls   6 10          
from meeting rooms (2) 4 6          
Billiard halls   6 8          
Machine and boiler rooms 20 30          
animal enclosures   15 20          
Enclosures animals (reduced crowding) 8 10          
Holds (the ship in general) 6 10          
Holds for fruit   20 30          
Holds for eggs, meat, etc. 10 20          
Theatres (2)   10 15          
Dry Cleaners   20 30          
toilets     10 15          
Offices (2)     4 6          
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