Iyala village is located at Mbeya Region and Mbarali District. Its population is approximately about 234,908 peoples. The main activities in Iyala is small scale farming ,they deals with the different crops like maize and tomatoes . The village has no mains supply from the grid, but it has got many rivers .The farmers depend on seasonal rain fall to grow up their crops, there is no any means of irrigation system to this village.
PROBLEM STATEMENT
Iyala farmers depend on farming mainly Maize and Tomatoes, the area has rivers and lakes but they are not use them for irrigation because there is no electrical power from the grid.
PROJECT OBJECTIVE
Project objective is sub divided into two main parts namely;
MAIN OBJECTIVE
To increase crops production by irrigation.
SPECIFIC OBJECTIVE
Design the solar system
Identification of appropriate components
Assembling of the components
Build prototype
Test prototype
SIGNIFICANT OF PROJECT
It saves people life
Improve productivity
Reduce poverty
Increase earning for the people
METHODOLOGY
The following is a frame work the project is
managed and executed
Literature review and consultation
Data collection
Data analysis
Circuit design
Construction and test the prototype
Project report writing
LITERATURE REVIEW
General introduction
In literature review consists of existing system and its block diagram ,drawback of existing system ,proposed system and its block diagram ,definitions and explanations of different components/devices used in the irrigation system.
Existing system
Currently the farmers they depend on rainfall ,no means of irrigation than seasonal rainfall
Existing system block diagram
Drawback of existing system
Low production
Less production
Proposed system
A system contain the following equipment : Solar array which convert Sunlight into electricity ,system control array and pump ,an electric motor which drives the pump and a water pump which moves water from source to delivery point.
Proposed block diagram
ADVANTAGE OF PROPOSED SYSTEM
It will increase production rate of the farmer
It will save time
It will reduce human intervention
Increase quality
DATA COLLECTION
Data collection is the process of collecting necessary information which will be used for designing a proposed system after being analyzed. This information is obtained form a particular site of a study.
Area exposed to sunlight
Farm size
Table 1
DATA ANALYSIS
Selection of solar array
Power = 200w
Voltage=24v
Module short circuit current (Isc)=8.333A
Array short circuit current =Isc*module in parallel*safety factor
=8.333*2*1.25
=20.83A
Selection of battery
Battery capacity = power of load *backup hours/ battery voltage
=746*4/24
=124.33Ah
Selection of charger controller
=Array short circuit current * 1.56
=20.83 * 1.56
=32.448A
Selection of Inverters
Size of inverters = total load * safety factor / power factor
= 746w * 1.3/0.8
=1212.25VA
Selection of pump motor
In selection of pump motor things consider is flow rate and total dynamic head.
CONTROL CIRCUIT FOR PUMP MOTOR
CONCLUSION
This project is succeed by achieving the main objective where the system designed its working properly for irrigation activities in the iyala village
RECOMMENDATION
This project can be expanded as much as possible in order to get power for irrigation so as to help people to generate their lives also this project can be modified by using different power system instead of solar system like using power generator.