GMV5 Home DC Inverter Multi VRF Units
41
Model selection principle: calculate ―water consumption of user‖ according to ―number of
people and per capita water consumption‖ and ―water consumption of bathroom accessories‖
respectively, and take the larger value. And then calculate ―water storage capacity of water tank‖,
that is, cubic capacity of water tank.
8.3.6.1 Calculation of water consumption
According to related standard or experience
(1) According to per capita water consumption
Designed daily water
consumption (L)
Using water
temperature (℃)
(2) According to water consumption of bathroom accessories
Using water temperature (℃)
One-time water consumption (L)
In this case, there are five persons; one bathtub (with shower), two showers, three
washbasins;
Calculate ―water consumption of user‖ according to ―number of people and per capita water
consumption‖: 5*70=350L;
Calculate ―water consumption of user‖ according to ―water consumption of bathroom
accessories‖: 150+70*2+3*3=299L;
Take simultaneous ultilization rate as 0.7; then total water consumption of user
=350L*0.7=245Lï¼›
Calculation for water consumption of user
According to per capita consumption
Per capita water consumption (per
day, per capita) L
According to bathroom accessories
One-time water consumption of unit
quantity (L)
Simultaneous ultilization rate: 0.7 at most
Final defined total water consumption: 350L*0.7=245L
8.3.6.2 Calculation for water storage capacity (cubic capacity) of water tank
Water storage capacity of water tank=(t model selection designed water temperature- t
cooling water entering temperature)* total water consumption of user/(t heating temperature of
water tank- t cooling water entering temperature)
t model selection designed water temperature—— in consideration of the temperature when