In this paper, the analysis has been carried out for the solar energy technologies (PV) system employed for energy supply in a hostel building for different end uses e.g. heating and electricity. The building is Ramanujam Hostel located in Madan Mohan Malaviya University of Technology, Gorakhpur. The building was designed based on current regulations on energy efficiency in buildings. This analysis is designed for minimizing energy consumption by the appropriate choice of the space heating and electricity systems and to find the power capacity of the hostel building. A major part of electricity required for lighting, domestic appliances and the functioning of space heating system is generated through a PV system. The PV systems are installed on the building roof.

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An Analysis of Solar Heating System for
Building
Satish Kumar Maurya1
& Dr. Jeeoot Singh2
1.P.G. Student, 2. Associate Professor Mechanical Engineering, Department, MMMUT
Gorakhpur, India
Abstract: In this paper, the analysis has been
carried out for the solar energy technologies (PV)
system employed for energy supply in a hostel
building for different end uses e.g. heating and
electricity. The building is Ramanujam Hostel located
in Madan Mohan Malaviya University of Technology,
Gorakhpur. The building was designed based on
current regulations on energy efficiency in buildings.
This analysis is designed for minimizing energy
consumption by the appropriate choice of the space
heating and electricity systems and to find the power
capacity of the hostel building. A major part of
electricity required for lighting, domestic appliances
and the functioning of space heating system is
generated through a PV system. The PV systems are
installed on the building roof.
Keywords: Solar energy, Electricity generation,
Photovoltaic system, Residential building.
1. INTRODUCTIO
The potential for building integrated PV to actively
mitigate electricity consumption and carbon emissions
at point of demand is highly significant. The solar PV
system is installed on the roof of Ramanujam hostel in
MMMUT, Gorakhpur. The capacity of this hostel is
73049 KWh per year. The total power is generated by
solar PV panel and supply overall buildings. The solar
PV system is analyzed by the software of RETScreen.
The RETScreen software provides the location
(latitude and longitude) of solar PV panel. Cost,
number of solar PV panel and its features will be
estimated by RETScreen software. In this project, we
use Samsung (mono-Si-LPC250SM) PV panel. The
efficiency of the PV panel is 15.62% and frame area is
1.6 m2. The total numbers of installed system are 176
and cover 282 m2 areas on the roof of hostel building.
The project life is 25 years. The electricity and space
heating power supply by PV panel.
The produced energy from PV and it is added to the
economic benefits, who besides receiving the
incentive, also can use the solar electricity directly or
successively through the net metering or supply it to
the hostel building. The equipment; computers, multi-
media devices in hostel buildings is growing fastest.
Cumulative energy consumption of AC appliances in
hostel building already forms a significant proportion
of the total electrical demand. The continuing and
rapid shift to LED lighting, ever increasing adoption
of mobile appliances and future innovations and
networked services such as internet of things are
expected to put proportion of AC consumption in
hostel building.
The savings can be obtained either with an appropriate
design or renewal of the envelope and with the use of
renewable and low energy technologies. Among
various renewable and low energy technologies, solar
technologies like photovoltaics (PV) systems are
gaining a rapid growth in the market. This trend is
driven not only by the environmental benefits derived
from these technologies, but also because of the
incentive mechanisms developed at national level.

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2.METHODOLOGY:
The building is located in Gorakhpur region in
MMMUT of Ramanujam hostel and was designed
based on current regulations on energy efficiency in
buildings to minimize energy demand derived from
the building envelope, which in turns, represents the
energy quality of the building.
Further, different types of energy supply systems have
been proposed and analyzed in order to understand and
demonstrate the differences and improvements in
terms of energy savings that could be achieved
through the use of the systems based on renewable
energy sources (RES).
The energy performance of PV systems was estimated
by means of the software provided by RETScreen
Expert.
Finally, a preliminary economic assessment has been
made for investments required for the different cases
assumed plant and an estimate on the CO2 emissions
avoided by the renewable energy technologies.
3. BUILDING DESCRIPTION:
The analyzed building is a Ramanujam hostel, located
in MMMUT, Gorakhpur. The hostel details are shown
in given table. Table I summarizes the geometric data
of the building.
4. CLIMATE DATA AND LOCATION:
The hostel building is located in MMMUT,
Gorakhpur. The climate data and its location are
prepared by RETScreen Expert software. The hostel’s
electricity supply is totally depends on solar PV
system. The PV system is fixed type and mounted on
roof of hostel. The PV panel is fixed and placed on
north hemisphere i.e. south facing angle, =0o. The
latitude angle of PV panel is 26.8o and longitude angle
is 83.4o. The PV panels absorb solar radiation and
converted into electricity. The amount of solar
radiation is 1000 w/m2. The number of total panel is
176 and the capacity of this plant is 44 KW. This plant
produces 73049 KWh power per year. The solar
radiation at different climates (summer, winter and
rainy day) being changes. At low radiation, the electric
energy will produce low while high radiation produce
high electric power. The electricity generation is
depends on amount of solar radiation. By RETScreen
Expert, we find the monthly wise solar radiation in
Gorakhpur. The highest solar radiation achieved in
May month and lowest solar radiation achieved in
December month. The highest air temperature
achieved in May month and lowest air temperature
achieved in January month.
The monthly wise air-temperature, relative humidity,
solar radiation, atmospheric pressure and wind speed
data are shown below. These data’s source is approved
by NASA[2].

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Fig.2: Monthly wise data
Fig.3: Climate data graph
Fig. 4: Description of PV Plant
5. PHOTOVOLTAIC (PV) SYSTEM:
Considering the power and the operational period of
electrical appliances in a hostel, a consumption of
73049 KWh/year is estimated for the analyzed
building. The PV system consists of Monocrystalline-
Silicon (Samsung, mono-Si - LPC250SM) modules of
250 W with a nominal efficiency of 15.62% and frame
area is 1.6 m2. Based on the space availability for the
correct orientation of PV modules, it has been
estimated that 176 modules with a total power of 44
kW can be installed on the building roof. The
operation and maintenance cost of these plant is 44000
of 44 KW per year. The rate of electricity is 5 rupee
per unit or per KWh. Fig. 4 shows the PV plant data
estimated by the RETScreen software[2].

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The fan data are coming in per day usage.
These value find in whole summer season, near
about 8 months (from march to october) are
coming in summer season.
From march to october; no. of days = 245
Fan used in whole summer season = 112800 X 245 =
27636000 watt-hour
B. Winter season:
In winter season, space heating is needed in each
room. The electric equipment of Blower is required for
space heating and above electric equipments are
compersury used(fan not used).
The blower data are coming in per day usage. These
value find in whole winter season, near about 1
months (from last half December to starting half
January) are coming in extra cold season. During this
period near about 30 days are coming.
7. ANNUAL REQUIREMENT OF
POWER IN HOSTEL BUILDING:
Annual power requirement in hostel = 36216395 +
27636000 + 8460000 = 72312395 watt-hour =
72312.395 KWh
The solar panel capacity is 44 KW these panel produce
73049 KWh annual power these power description are
provided by RETScreen Expert software. While the
hostel power requirement is 72312.395 KWh annual
and some annual power used by wire loss.
Total annual used power by hostel = 72312.395 + wire
loss = 73049 KWh
8. CO2 EMISSIONS:
The benefits identified through this assessment on the
use of renewable energy technologies are not limited
to energy and economics, but also encompass the issue
of reducing emissions. Producing electricity with the

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photovoltaic system can save additional 62.5 tCO2 per
year and gross annual CHG emission reduction is
93%.
9. CONCLUSIONS:
This work is done in Ramanujam hostel MMMUT,
Gorakhpur. The hostel power is depend on solar PV
panel. Total 176 solar PV panel will be used. The
capacity of panels is 44 KW and they produce 73049
KWh annual power.
It has been shown that by using renewable and low
energy technologies, the building energy consumption
and environment impact can be reduced substantially
and the initial higher investment is quickly paid back
during life span of the building.
10. REFERENCES:
1. R.S.Adhikari, M. Buzzetti and S. Magelli, ‘Solar
Photovoltaic and Thermal Systems for Electricity
Generation, Space Heating and Domestic Hot Water
in a Residential Building’978-1-4244-8930-5/11/
©2011 IEEE
2. RETScreen: “Clean Energy Project Analysis,”
RETScreen Engineering and Cases Textbook, 3rd ed.,
Clean Energy Division Support Center, Canada,
www.retscreen.net
3. Dr. Matt J Stewart, Professor John M Counsell and
Mr. Ameer Al Kaykhan, ‘Design and Specification of
Building Integrated DC Electricity Networks’978-1-
5090-4171-8/16/ ©2016 IEEE
4. National Grid Solar PV Briefing Note, online
resource viewed 05/16,
https://www.gov.uk/government/uploads/system/uploa
ds/attachment_data/file/66609/7335-national-grid-
solar-pv-briefing-note-for-decc.pdf
5. Balaras A.C., Drousta K., Argiriou A.A.,
Asimakopoulos D.N.: Potential of Energy
conservation in apartment building. Energy and
Buildings, 31(2), 2000, pp. 143–154.
6. Hans-Martin Henning and Jochen Döll, ‘Solar
systems for heating and
cooling of buildings’1876-6102 © 2012 The Authors.
Published by Elsevier Ltd. Selection and peer-review
under responsibility of the PSE AG doi:
10.1016/j.egypro.2012.11.073
7. Kirschen et al, A Model of PV Generation Suitable
for Stability Analysis, IEEE Transactions on Energy
Conversion, Vol 19, No.4, 2004