International Journal of Scientific Research and Engineering Studies (IJSRES) Volume 1 Issue 4, October 2014 ISSN: 2349-8862 www.ijsres.com Page 50 Experimental Investigation Of Forced Circulation Solar Air Heater Along With Integrated Solar Collector And Phase Change Material (Paraffin Wax) Mr. Kaushal Kishore M.Tech student Prof. (Dr.) S. C. Roy HOD and Professor Prof. J. N. Mahto Prof. R. S. Prasad Assistant Professor in Department of Mechanical engineering, BIT Sindri Abstract: Latent heat thermal energy storage is one of the most efficient ways to store the thermal energy for heating air by energy received from the sun. This project is investigation and analysis of thermal energy storage incorporating with phase change materials (PCM) and integrated solar collector plate for use in solar air heater. The integrated collector storage (ICS) concept is applicable as direction in increasing the economic feasibility and more attractive for space heating, cooling in domestic, agricultural and industrial applications in buildings, solar applications, off-peak energy storage, and heat exchanger improvements. It focuses mostly on applications involving a reduction of electric power consumption. A system of this combines collection and storage of thermal energy in a single unit. Compared with the other conventional domestic air heating system, the integrated collector heating system has the more advantage of simplicity, both in erection and in operation. The thermal performance of this solar air heater with phase change material and integrated collector plate are more than conventional type because large surface area for heat transfer is obtained. When the sun ray falls on the solar collector plate, the panel or surface area is responsible for the amount of heat storage. This heat energy is transferred with the help of aluminium fins to the stored paraffin wax which is used as a latent heat storage system. In this project reflector plate with stand and paraffin wax is used. The latent heat storage capacity of paraffin wax is more. So that the amount of heat energy is increased with the help of this reflector. Due to this more amount of heat energy the difference of inlet air temperature and outlet air temperature is more, so that high temperature of hot air is obtained and efficiency of collector plate is increased. This improved collector efficiency by reducing heat loss to the environment, and help achieve an overall efficiency, which accosts of pumping loss for moving air through the collector. I. INTRODUCTION Solar energy developed as a means of cheap energy for Drying grains, fruits, vegetables, tea, and building heating, space heating, drying for industrial & agriculture purposes. The increasing need for renewable energy sources, specifically solar energy, requires that research be conducted to improve the efficiency of solar systems. Energy storage is not only plays an important role in conservation the energy but also improves the performance and reliability of wide range of energy systems. Solar air heater is a simple device to heat air by utilizing solar energy. Such heater is implemented in many applications which require low temperature below 60°C. Solar air heating (solar collector) is a renewable heating technology and provides heat using solar energy. With fuel costs and other factors, solar air heater is getting more attention. The performance of SAH depends on a number of factors. There are many advantages of solar air heater systems. Firstly, they are simple to maintain and design. After the set-up cost, a solar air heater system has no fuel expenditure. There is less leakage and corrosion when compared to the systems that use liquid. It is also an eco-friendly system which has zero greenhouse gas emissions. It is really cost effective and simple way to get 75% more power from any ordinary solar panel. Modern air heater design, focused mainly on improves conductive heat transfer and absorber plate temperature. Most of the time a solar panel is working well below peak power, and when the sun is lower in the sky, early morning and late afternoon. The light levels are just not so enough. To boost the sun light level so introduce a mirror or reflector plate to reflect more Solar irradiation onto the solar collector plate. This is probably one of the cheapest and easiest ways to boost the power of a small solar collector plate. The greatest limitations to increasing the use of conventional collectors are their relatively low average efficiency and high investment cost. For this reason, significant research on improving the efficiency of collector plate has been carried out. It indicate that the greatest theoretical improvements to the collector efficiency can be achieved by utilizing internal fins in the collector plates, reflective surface and phase change material (paraffin wax). Phase change materials (PCM) are „„Latent heat‟‟ storage materials. The thermal energy transfer occurs when a material changes from solid to liquid, or liquid to solid. Initially, these solid–liquid PCMs perform like conventional storage materials; their temperature rises as they
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Experimental Investigation Of Forced Circulation Solar Air Heater Along With Integrated Solar Collector And Phase Change Material (Paraffin Wax)
Latent heat thermal energy storage is one of the most efficient ways to store the thermal energy for heating air by energy received from the sun. This project is investigation and analysis of thermal energy storage incorporating with phase change materials (PCM) and integrated solar collector plate for use in solar air heater. The integrated collector storage (ICS) concept is applicable as direction in increasing the economic feasibility and more attractive for space heating, cooling in domestic, agricultural and industrial applications in buildings, solar applications, off-peak energy storage, and heat exchanger improvements. It focuses mostly on applications involving a reduction of electric power consumption. A system of this combines collection and storage of thermal energy in a single unit. Compared with the other conventional domestic air heating system, the integrated collector heating system has the more advantage of simplicity, both in erection and in operation. The thermal performance of this solar air heater with phase change material and integrated collector plate are more than conventional type because large surface area for heat transfer is obtained. When the sun ray falls on the solar collector plate, the panel or surface area is responsible for the amount of heat storage. This heat energy is transferred with the help of aluminium fins to the stored paraffin wax which is used as a latent heat storage system. In this project reflector plate with stand and paraffin wax is used. The latent heat storage capacity of paraffin wax is more. So that the amount of heat energy is increased with the help of this reflector. Due to this more amount of heat energy the difference of inlet air temperature and outlet air temperature is more, so that high temperature of hot air is obtained and efficiency of collector plate is increased. This improved collector efficiency by reducing heat loss to the environment, and help achieve an overall efficiency, which accosts of pumping loss for moving air through the collector.
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International Journal of Scientific Research and Engineering Studies (IJSRES)
Volume 1 Issue 4, October 2014
ISSN: 2349-8862
www.ijsres.com Page 50
Experimental Investigation Of Forced Circulation Solar Air Heater
Along With Integrated Solar Collector And Phase Change Material
(Paraffin Wax)
Mr. Kaushal Kishore
M.Tech student
Prof. (Dr.) S. C. Roy
HOD and Professor
Prof. J. N. Mahto
Prof. R. S. Prasad
Assistant Professor in Department of Mechanical
engineering, BIT Sindri
Abstract: Latent heat thermal energy storage is one of
the most efficient ways to store the thermal energy for
heating air by energy received from the sun. This project is
investigation and analysis of thermal energy storage
incorporating with phase change materials (PCM) and
integrated solar collector plate for use in solar air heater.
The integrated collector storage (ICS) concept is applicable
as direction in increasing the economic feasibility and more
attractive for space heating, cooling in domestic, agricultural
and industrial applications in buildings, solar applications,
off-peak energy storage, and heat exchanger improvements.
It focuses mostly on applications involving a reduction of
electric power consumption. A system of this combines
collection and storage of thermal energy in a single unit.
Compared with the other conventional domestic air heating
system, the integrated collector heating system has the more
advantage of simplicity, both in erection and in operation.
The thermal performance of this solar air heater with phase
change material and integrated collector plate are more than
conventional type because large surface area for heat
transfer is obtained. When the sun ray falls on the solar
collector plate, the panel or surface area is responsible for
the amount of heat storage. This heat energy is transferred
with the help of aluminium fins to the stored paraffin wax
which is used as a latent heat storage system. In this project
reflector plate with stand and paraffin wax is used. The
latent heat storage capacity of paraffin wax is more. So that
the amount of heat energy is increased with the help of this
reflector. Due to this more amount of heat energy the
difference of inlet air temperature and outlet air temperature
is more, so that high temperature of hot air is obtained and
efficiency of collector plate is increased. This improved
collector efficiency by reducing heat loss to the environment,
and help achieve an overall efficiency, which accosts of
pumping loss for moving air through the collector.
I. INTRODUCTION
Solar energy developed as a means of cheap energy for
Drying grains, fruits, vegetables, tea, and building heating,
space heating, drying for industrial & agriculture purposes.
The increasing need for renewable energy sources, specifically
solar energy, requires that research be conducted to improve
the efficiency of solar systems. Energy storage is not only
plays an important role in conservation the energy but also
improves the performance and reliability of wide range of
energy systems. Solar air heater is a simple device to heat air
by utilizing solar energy. Such heater is implemented in many
applications which require low temperature below 60°C. Solar
air heating (solar collector) is a renewable heating technology
and provides heat using solar energy. With fuel costs and other
factors, solar air heater is getting more attention. The
performance of SAH depends on a number of factors. There
are many advantages of solar air heater systems. Firstly, they
are simple to maintain and design. After the set-up cost, a
solar air heater system has no fuel expenditure. There is less
leakage and corrosion when compared to the systems that use
liquid. It is also an eco-friendly system which has zero
greenhouse gas emissions. It is really cost effective and simple
way to get 75% more power from any ordinary solar panel.
Modern air heater design, focused mainly on improves
conductive heat transfer and absorber plate temperature. Most
of the time a solar panel is working well below peak power,
and when the sun is lower in the sky, early morning and late
afternoon. The light levels are just not so enough. To boost the
sun light level so introduce a mirror or reflector plate to reflect
more Solar irradiation onto the solar collector plate. This is
probably one of the cheapest and easiest ways to boost the
power of a small solar collector plate. The greatest limitations
to increasing the use of conventional collectors are their
relatively low average efficiency and high investment cost.
For this reason, significant research on improving the
efficiency of collector plate has been carried out. It indicate
that the greatest theoretical improvements to the collector
efficiency can be achieved by utilizing internal fins in the
collector plates, reflective surface and phase change material
(paraffin wax). Phase change materials (PCM) are „„Latent
heat‟‟ storage materials. The thermal energy transfer occurs
when a material changes from solid to liquid, or liquid to
solid. Initially, these solid–liquid PCMs perform like
conventional storage materials; their temperature rises as they
International Journal of Scientific Research and Engineering Studies (IJSRES)