SELECTION OF SOLAR POWERED BLOWER FOR 3000 L GREY WATER RECYCLING SYSTEM AT DINGRAJWADI

INTRODUCTION

Solar powered Blower are not only great for blowing grey water. Solar Blower are now replacing electrically powered motors and compressor it keeps healthy environment using natural energy. Solar air blower run on solar energy instead of electricity. Similarly to how solar lights works, a solar Blower is powered by a solar panel that is either mounted on the device or wired to a separate installation. Solar powered Blowers for grey water recycling system do not usually require secondary power sources as long there is enough sunlight. To reduce the cost of electricity by using solar panels.

OBJECTIVES

1.To design the solar powered grey water Bubbling system at Dingrajwadi

2.To select the solar powered air blower for system.

3. To fabricate the appropriate structure PV module.

EMPATHY

DATE 03/02/2022

We visited Dingrajwadi village then we spoke with sarpanch of the Dingrajwadi. he talk with us about their problems like
1. There is 50 households their used Water directly flood into the creek without treatment.
2. In the creek water is not flow properly because of High content of solid sediments
3. Increase the high risk of water pollution because of Used Water.
4. It’s smells unpleasant because backwater and there is chances to increase the mosquitoes it’s causes dengue.
5. There is lack of water they want to treat that water and it should put into Agricultural uses.

PROCESS FLOW DIAGRAM

MODIFIED PROCESS FLOW DIAGRAM

In this Process flow diagram I only work for secondary treatment.

1. DESIGN OF SOLAR POWERED BUBBLING SYSTEM ACCORDING TO SITE

Auto Cad 2D design as follows

Dimensions of the site as follows

2. SELECTION OF BLOWER AND RELATED EXPERIMENTS

A. AIR BLOWER RELATED EXPERIMENTS

For air blower section we did lot of experiment for selecting the appropriate blower bubbling the grey water at Dingrajwadi Project. we already did experiments while doing on experiment on VFD we collected data about blower.

EXPERIMENT NO 1

Date 16/02/2022

Aim

we have to check the blower will bubbling the water

Procedure

firstly we went to the Vigyan Ashram aquaculture pond there is 0.74 HP ring blower setup. we are started working on it . we connected blower to the VFD and starts the blower their pipe will put into the pond then we observing the system is it working or not.

Observation

In this experiment airoxitubes are not working properly.
Only pipe put into the water it will blow the air in water.

Conclusion

In this experiment airoxi tubes are blocked and it will not work in long term.

Result

we got two results 1] Airoxii tube about blockage and 2] Blower will able to bubble the water .

EXPERIMENT NO 2

Date 22/03/2022

Aim

We have check the blower how much possible depth will cover in water to blowing air in it.

Procedure

firstly we take the blower bubbling pipe and put into the 1000 lit IBC tank . starts the blower on VFD

we have 3ft depth water we are taking reading on it.

Observation

we observed it will blow the air only 1ft depth

Conclusion

in this experiment normally we checked depth capacity of blower in this experiment we knows it will not work what are the specifications will claimed.

Result

We got result it will work on only 1ft depth.

On this experiment basis we will decided to change the blower for IBC tanks one blower for one IBC.
We had brainstorming session with prasad sir and take decision to change the blower.
Ring blower were used in these experiments its not capable to form bubble at depth 1 ft .

B. WE DID MARKET SERVEY FOR AIR BLOWER AND SELECTS ONE OF THEM

Untitled-spreadsheet Download

On these basis we are selected 58 watt Air blower RESUN Company

C. SELETION OF SOLAR PANEL ON AIRBLOWER BASIS

Now we have 58 Watt Electromagnetic Air blower on these basis we have to select PV module.
B1- First Blower ,B2- Second Blower and B3- Third Blower

Required Watt = B1+B2+B3
58+58+58=174 Watt

Total load (Wh)
Blower running time is 5 hrs in day

174*5=870 Wh

on these basis we have to select approximate 1 Kw system

we did market survey and select PV panel.

RENEWSYS INDIA PVT LTD.

D. SELECTING VFD AND EXPERIMENTS RELATED

For 1 Kw PV system we need to 1 Kw VFD system

we did market servey and selct

we did many experiments at VIgyan Ashram campus their is many VFD systems are installed for blower. and also we are tried to know about what is VFD ? how it works ? what are the applications. and also we had presentation on it and we did brainstorming session with Dr Dixit Sir and Prasad Sir.

EXPERIMENT NO 1

Date 16 /02/2022

Aim

We have to check the how much solar panel needs to run the 0.74 HP blower

Procedure

We visited to the VFD at place .There are six solar panels and one VFD it’s connected to the blower it’s 0.74 HP Motor. at that time we have to check how much electricity generates the solar panel to run the blower. so we started that VFD on six panel and it’s run smoothly. The next hour we disconnected one panel and we did same thing next hour. and we took reading for how much panels need to run the blower we did same thing in day 3 times.

Observation

Finally it’s well started on 3 panel. when we started at 2 panel it’s not worked but all time same problem with 2 panel when we started at 3 panel it’s started properly. when we started at 2 panel its not working properly.

Conclusion

In this experiment bubbling blower will runs on 1kw PV panel.

Result

In this experiment 0.74 HP blower runs on 3 solar panels.

EXPERIMENT NO 2

Date 17/02/2022

Aim

We have to check the VFD how much volt/hertz supplies the blower motor.

Procedure

Morning To Evening we took 3 reading on VFD with 3 solar panel. there are two VFDs and we took reading on both panels .Firstly we take upstairs Panel Each panel is 335 W or 46.5 V . When it comes to downstairs Panel 300 W or 45 V. And blower is 550 W or 0.74 HP.

Observations

1] Time 10:30 am to 11:00 am

Up stair on 3 panel 21 to 24 volt/hertz vary

Down stair on 3 panel 18 to 19 volt/hertz vary

2] Time 01:00 pm to 1:30 pm

Up stair 23.77 volt/hertz it does not vary

Down stair 18.77 to 18.88 volt/hertz vary

3] Time 04:21 pm

Up stair 23.52 to23.66 volt/hertz vary

Down stair 18.95 to 18.99 volt/hertz vary

Conclusion

In this experiment up stair panel is more volt/hertz supplies as compare to down stair panel.

Result

Both VFDs are not supplies equal voltage and Frequency those both are different.

EXPERIMENT NO 3

24/02/2022 to 26/02/2022

Aim

We have to check the how much air blow the blower through manifold.

Procedure

We visited where VFD at place. There are two VFDs both connected different panels like up stair and down stair so we runs the blower on both panel and we measured How much air blow through the blower. and also we measured the air speed With the help of anemometer.

Observation Table

Conclusion

In this experiment we knows all time blower will not start same speed because of cloud and tree shadow every time we get different readings

Result

In this experiment both VFDs are supplies different frequency and volt . also we knows in this experiment some natural issues are affecting on it.

PRESENTAION ON VFD

Date 15/03/2022

I did presentation on VFD after the presentation we had brainstorming session with Dr. Dixit Sir, Prasad Sir and Prathamesh sir.

Presentation PPT

variable frequency drive ppt Download

CONCLUSION

Now we get idea about VFDs what is VFD, how it will work, advantages of VFD and application of VFD.
On these experiment basis we will select the VFD for blower.
VFD will good device for solar PV systems.

E. SOLAR PV STRUCTURE AND TILT ANGLE CALCULATIONS

Date 04/02/2022 to 11/02/2022

We make ppt on photovoltaic cell and gives presentation on it. In shortly we are trying to know about PV panel, construction material and connections. we are commonly discussed related to the PV panel with Prasad sir and Dr. Dixit sir. then personally I visited to the Vigyan Ashram campus where at place PV systems are installed I observed the foundation ,frame design, how it will works, which kind system will runs on it.

Cross section view of PV panel

Date 08/03/2022

firstly observed Vigyan Ashram campus PV systems on that basis we design for 3 panel structure for Dingrajwadi project then draw the engineering drawing on blank paper and we do calculate the tilt angle.