MEASURING YOUR SUN HEATING SYSTEM
To obtain the greatest performance of the sun heaters, besides the real demand of hot water, the measurement must consider the place of the installation.
A badly measured system will inevitably make the auxiliary group of heating operate above the predicted way, with a consequent increase in the operational cost. To determine the number of collectors that will form the system, these are the procedures to be followed:
1. Calculate the daily consumption of hot water demanded from the system (liters/day), referring to the table bellow:
CONSUMPTION OF HOT WATER FOR RESIDENCES
(Litros / persona / dia)
Shower :
Wash basin:
bidet:
Kitchen:
Laundry room:
Dish washer:
Small bath tube:
Medium sized bath tube:
Big bath tube:
80
8
6
18
15
8
130
170
260
2. Choose a reservoir with the capacity (in liters) equal or immediate above what is indicated.
3. Calculate the expression:
Cold places : 1,33
Warm places: 1, 00
Hot places (clean sky): 0, 80
Up to 15º: 1, 00
From 15º to 20º: 1, 05
From 20º to 25º: 1, 10
Above 25º: special support