03/09/2022-25/09/2022
aim of this project is to collect and store that water and utilize the water . The project starts by collecting some important researches on rainwater Harvesting and studied them. measure the dimension of roof catchment area. Then other required data are collected i.e. hydrological rainfall data, temperature. The volume of water will calculate for determining to provide combined water tank.
Components of rooftop rainwater harvesting:
1) Roof catchment
2) Gutters
3) Down pipe
4) Storage Tank
Need of project:
1)As water is ending up rare, it is simply the need of the day to accomplish independence to satisfy the water needs.
2) As urban water supply system is under colossal weight for providing water to consistently
expanding populace.
3) Groundwater is getting exhausted and contaminated.
4) Health perils because of utilization of contaminated water.
Objectives
- To calculate total rainwater potential
- To study about rainwater harvesting components
Rainwater Harvesting For workshop:
Rainwater captured = Area *Rainfall
6/06/2022-4/07/2022
DIC
Length=20m
Width=13m
Area=13*20=260m^2
Rainwater harvesting potential of DIC=260*0.6*0.9
=140.4m^3
=140400 Liter
Girls hostel
Length=15m
Width=9.5m
Rainwater harvesting potential of Girls hostel=15*9.5*0.6*0.7
=59.85m^3
=59850 Liter
Boys Hostel
Length=16m
Width=10m
Rainwater harvesting potential of boys hostel=96*0.7
=67.2m^3
=67200Liter
Memorial Hall=12*19*06*0.7
=95.76
=95760Liter
Workshop=575*0.6*0.9
=3,10.500Liter
Total rainwater potential=673710 litres
Today I had discussion with Nandini on following points. she has joined vigyan ashram as DIC intern.
Drinking water requirement = 3L
Cooking = 4L
Flushing = 40 L
Bathing = 20L
Washing cloth = 20L
Washing utensils = 5L
Total 92 L/day/person
Water requirement for cooking and drinking= 12 L
Girls in hostel = 10
Boys = 32+12+12
Staff=9
Total = 75
Total Water requirement for day =75*12=900L
Water requirement for month =900*31=27900L
Water requirement for year = 900*365= 3,28,500L
673710-328500=345210
We can save 345210L of water
For girls hostel
Water harvesting potential for girls hostel is=59.85 m cube
v2=u2+2aS
Q= CIA
=0.85*15/3600000*3777.5=0.02087m cube per second
Q=n0.785d^2v
n=Q/0.785d^2v
=Q/0.785d^2v
=0.02087/0.785*0.1*0.1*0.1=30 pipes
If we need one pipe then n=1
and dia will be 0.26 m
10/9/2022-11/09/2022
Required component:
Types of water pump:
Some pumps with price
Mini champ water pump=4300-4400
Kirloskar chhoty star ultra=4200-4300
Havells hi flow=5000-5200
Usha smash
Lakshmi 1 hp self-priming Monoblock water pump=3600-3800
12/11/2022
Steps to calculate hp of water pump:
Today we (Mrunal, samarth and me) discussed about this concept and tried to find out total hp of water pump for girls hostel
1.Decide on the desired flow rate
2. Estimate friction losses from the pipe
3. Measure the height the water needs to travel.
4. Add the pumping lift and friction loss together
5. Look up the specific gravity if you are pumping anything besides water.
6. Enter these values into the water horsepower formula
7. Divide horsepower by pump efficiency.
Conclusion:
Different roof material have different water holding capacities. There should be proper harvesting system for rainwater harvesting.