The aim of this textual work is to represent the review on solar air heater with air purification system. The review highlights the domain of solar air heater technology.
It shows the different types and innovations of the solar air heater in the course of time. It thoroughly discusses the key points of various papers by former authors. Along with this, it also discusses about the nature and purpose of the paper and the developments done in this field. Together with this, a brief content of experimental set up has been given which gives an over view of design and fabrication of solar air heater with air purification system. There are stripes of pipes inside the wooden box which have gaps in between them. The gaps are filled with Aluminum foil painted black in color. fins with different design and surface roughness are provided to increase the rate of heat transfer inside the setup.
The Aluminum foil is there to compensate the heating errors due to leakage in stripes of pipe. There are many techniques have been used to enhance the characteristics performance of the solar air heater such as surface geometry and different kinds of materials at inlet of the duct fan.
Additionally, the paper shows objective, working principle, methodology, components, results and applications of the solar air heater. Thus, design and fabrication of solar air heater with air purification system gives the compendium of this technology.
Introduction
I. INTRODUCTION
Solar air heater as a thermo-mechanical device works on energy derived from solar radiation. It absorbs solar energy to change the thermal state of the air. The energy derived from the sun is used to heat air and pass out from exit pipe and filtered by the air purification system. It absorbs the solar radiation through radiation collector to warm up the air and further circulating this air in different location. It uses the warmed air to provide heat in buildings especially in industrial areas.
It is based on the principle of rise and down setting of air at its different level of temperature. Solar collector is used to draw the quanta of radiation which is a flat and black body.
SAH utilizes abundant, renewable and inexhaustible solar energy. It is pollution free and thus eco-friendly. It gives us cost effective air heating. It confines the electricity need at a certain level which is very useful in our lives.
II. LITERATURE REVIEW
Chabane et al. analyzed a single pass solar air collector with and without baffle fin.Through the study, they investigated the effect of roughness and operating parameters on heat transfer.
Akpinar and kocyigit have done an experimental investigation with flat plate solar air heater with several obstacles and without obstacles. They presented the data obtained in the experiment with the correlations by the linear regression.
Gedion Habtay with others, investigated with an indirect active type of solar dryer and two different solar air collectors. They have found the drying efficiency of the apple.
Amr Elbrashy and others, in their works with the solar air heater, tried to enhance the heater with the evacuated tube solar collectors. They have used nanoparticles as enhancers.
III. METHODOLOGY
We considered that, a practical observation of solar air heater should be done in order to understand the fundamentals of it. So, we constructed one, in which the inflow of air is from the lower end of SAH and after the air is warmed through the middle section, the air is out flow from the uppermost end through a cylindrical pipe.
V. ACKNOWLEDGEMENT
We owe a great respect to the various authors for the work they have done in this domain. Their papers are prerequisite for our work.
We are also grateful for our Department of Mechanical Engineering for fulfilling our needs in completing our work.
We owe a special gratitude to Mr. Ravi Pratap Singh (Assistant Professor). Who gave us his valuable guidance and support in every aspect of our work.
Conclusion
Solar air heater is sustainable and reliable device which uses eco-friendly energy in order to provide warm air for various purposes. The design, geometry and flow conditions in the pipes can be modified for better heat transfer rate.
It brings us a sustainable use of solar power which encourages for the development in the eco-friendly air heating. It also enables us with an approach in further development in the field of this technology.
Thus, the SAH can be used with different variations in order to provide specific temperature at different areas.
A. Advantages
1) Eco-friendly and Renewable energy source.
2) The simple and cost-effective design.
3) Way better than solar water heater due to less corrosiveness.
4) Reduces the electricity needs.
5) Low maintenance required like cleaning.
B. Application
1) It can be used in drying up of clothes, food and crop items.
2) It can be used for space heating in industrial and household compartments.
3) It can also be used to soak up the moisture present in papers and wood.
4) It can used for providing impurity free fresh air in at cold places.
5) It can provide an alternative in cost effective conditions in rural areas.
References
[1] HussainAkhtar, Arif Sayed Md, Aslam Md. Emerging Renewable and Sustainable Energy Technologies: State of the art. Renewable and sustainable energy reviews 2017; 71: 12-28.
[2] Rajaseenivasan T, Srinivasan S, Srithar K. Comprehensive Study on Solar Air Heater with Circular and V-type Tabulators Attached on Absorber Plate. Energy 2015; 88: 863-73.
[3] International Journal of Mechanical Engineering and Technology (IJMET) Volume 8, Issue 7, July 2017, pp. 1122–1131, Article ID: IJMET_08_07_122 Available online at ISSN Print: 0976-6340 and ISSN Online: 0976-6359 IAEME Publication Scopus Indexed A REVIEW ON SOLAR AIR HEATER TECHNOLOGY Ravish Kumar Srivastava and Ajeet Kumar Rai Mechanical Engineering Department, SSET, SHUATS, Allahabad, (U.P.), India
[4] Jayaraman Muthukumaran, Ramalingam Senthil Experimental Performance of Solar Air Heater Using Straight and Spiral Absorber Tubes with Thermal Energy Storage. Journal of energy storage vol 45, January 2022, 103796
[5] Ratinun Luampon and Bundit Krittakom A Study of Thermal Efficiency of Solar Air Heater with Wire Mess Stainless Installation: Using Solar Air Simulator 2018 J. Phys.: Conf. Ser. 1039 012044
[6] Recent Developments and Advancements in Solar Air Heaters: A Detailed Review. Varun Pratap and others. Sustainability 2022 - 14, 12149
[7] kaygusuz k. Experimental and Theoretical Investigation of a Solar Air Heating System with Heat pump Renewable energy 2000; 21: 79-02
[8] Hassan A. Phase Change Material Energy Storage System Employing Palmitic Acid Solar energy 1994; 52: 143- 54
[9] Yamali C. Solmusf I. A Solar Desalination System Using Humidification and Dehumidification Process: Experimental Study and Comparison with the Theoretical Results Desalination 2008; 220: 538-51
[10] B. K. Maheshwari, Rajendra Karwa, and S. K. Gharai Performance Study of Solar Air Heater Having Absorber Plate with Half-Perforated Baffles International Scholarly Research Network ISRN Renewable Energy Volume 2011, Article ID 634025, 13 pages doi:10.5402/2011/634025.
process: experimental study and comparison with the th
pump. Renewable Energy 2000; 21:79–102