design and simulation of a solar pv system - BRAC University ...

Table 5. Daily average bright sunshine hours in Dhaka city
Month Daily Mean Minimum Maximum
January 8.7 7.5 9.9
February 9.1 7.7 10.7
March 8.8 7.5 10.1
April 8.9 7.8 10.2
May 8.2 5.7 9.7
June 4.9 3.8 7.3
July 5.1 2.6 6.7
August 5.8 4.1 7.1
September 6.0 4.8 8.5
October 7.6 6.5 9.2
November 8.6 7.0 9.9
December 8.9 7.4 10.2
Average 7.55 6.03 9.13
The daily average bright sunshine hours in Dhaka city is 7.55 hours and the average solar
insolation is 5.24 kWh/ m 2
From formula, we get the irradiance of Dhaka city is 694.04 watt/m 2 . This value will be
used for BRACU solar PV system design.
6.0 BRAC University solar PV system design
6.1 System configurations
There are many poosible configurations of solar PV system. Each of these configurations
has its own advantages and disadvantages. Depending on the system requirements
appropriate system configurations has to be chosen. In our work, at first we considered
two possible configurations for BRACU campus. The first one is grid connected solar PV
system without battery (Figure 13 (a)) and the second one is stand alone solar PV system
with battery (Figure 13 (b)).
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