scholarly journals Creating a TRNSYS Model of Spiral Flow Flat Plate Solar Water Heater (SFSWH) and Comparing Unique Results with Parallel Flow Flat Plate Collector

A unique SFSWH system is proposed for domestic hot water in Kovilpatti, TamilNadu, 9° 10′N 77°52′E. This SFSWH system is successfully simulated in TRNSYS Software and the results are clarified with the similarities of parallel flow solar water heater. Firstly, a complete model of spiral flow flat plate collector is formulated in TRNSYS software and taking into an account of heat transfer, outlet temperature and efficiency which are theoretically compared with parallel flow flat plate collector by means of TRNSYS simulation program. The SFSWH system performs a function with the assist of NASA surface Meteorology and solar energy year readings and with the assist of ISRO’s solar calculator application relative to Kovilpatti, Tamilnadu, India. To prove the accuracy of TRNSYS model of the SFSWH, an experimental setup is done at kovilpatti and required results were obtained under kovilpatti weather conditions. The validation of this SFSWH TRNSYS model simulation program is completed by checking the similarities between the predicted results from software with original results. This SFSWH TRNSYS model result shows the SFSWH is functioned more effectively compared with conventional parallel flow water heater. Thus TRNSYS model is reliable and which alternates the experimentation.

2016 ◽  
Vol 4 (11) ◽  
pp. 108-110
Author(s):  
Shiv Kumar Tripathi ◽  
Mohammad Azim Aijaz

The analysis of thermal performance of the flat-plate collector includes parameters such as solar intensity, ambient temperature and configuration of flat-plate collectors etc. A Solar Water Heater are devices which are provides hot water for bathing, washing, cleaning, etc. using of solar energy. It is generally installed where sunlight are available. The solar energy is the most capable of the alternative energy sources. Solar energy is considered an attractive source of renewable energy that can be used for water hearing in both homes and industry.


Difficulty in collecting conventional energy sources as well as their economic benefits including saving of time ,money, fertilizer of higher nutrient value, availability of waste easy and comfortable cooking, health benefits including the reduction diseases and environmental benefits such as saving of forest, clear surrounding were the main motivational factors for this research. However, climate temperatures in areas are too low to enable enough biogas production in small unheated digesters to meet the energy requirements of the institute, so the objectives of were to overcome the problem of energy by solar assisted with the hot water storage tank. In this research mathematical modeling of the solar water heater was designed and the analysis of heat transfer coefficient (losses) through the flat plate collector was done and the techniques that used to reduce these losses also mentioned. From the simulation results; the effect of mesh type on flat plate collector, temperature rise, and pressure drop were characterized including flow type in the laminar and turbulent using CFD approach. The FPC was needed for the preparation of the hot water for the heating of the waste food for the selected fixed dome digester with 2m2 was designed. The effect of water mass flow rate 0.01-0.05kg/s on flat plate collector, temperature rise, pressure drop, and velocity was characterized including the variation of flow types intensity using CFD approach. The optimal temperature to this process was 37 °C.The results obtained have been validated with analytical results


2018 ◽  
Vol 141 (3) ◽  
Author(s):  
Vinod Kumar Soni ◽  
R. L. Shrivastava ◽  
S. P. Untawale ◽  
Kshitij Shrivastava

Concentrated solar power (CSP) is a mature and efficient technology to cater the large-scale demand of hot water. Conventional reflectors/mirrors in CSP share 50% of total system cost. High installation as well as O&M cost is the major concern in reflector-based CSP. Apart from the above, manufacturing defects and adverse service environment cause premature degradation of reflectors and substantial drop in efficiency and service life. Performance analysis of an innovative optically concentrated solar water heater (OCSWH) using plurality of Fresnel lenses of poly methyl methacrylate (PMMA) is presented in the work. Size and yield of any solar water heater (SWH) are mainly dependent on its aperture area, output temperature, and mass flow rate, which are termed herein as critical parameters. Series of experimentations is carried out by varying critical design and operating parameters viz. aperture area, outlet temperature, and rate of mass flow, and similar experimentation is also carried out on commercially available flat plate SWH to compare its performance. Loss of heat from riser and header pipes is restricted by application of effective insulation. Substantial improvement in collector efficiency, increase in rate of mass flow, and rise in discharge temperature with reference to flat plate collector are noted. Economics is also studied covering life cycle cost (LCC), life cycle saving (LCS), and energy payback period.


2017 ◽  
Vol 5 (10) ◽  
pp. 112-116
Author(s):  
Anupras Shukla ◽  
Pushpraj Singh

In this paper, we are studying about solar water heater. The solar water heater are consisting of several components such as circular pipe, flexible pipe, and metallic container for water and circulating pump. We are analyzed the outlet temperatures of hot water using of various flow rate (in liters/ Minutes).


2020 ◽  
Vol 4 (1) ◽  
pp. 275-279
Author(s):  
Rusmana ◽  
Kurnia Chandra

Mengingat wilayah Indonesia yang letaknya berada di garis khatulistiwa, sumber energi surya yang diterima Indonesia sangat melimpah. Pemanfaatan yang paling sederhana adalah menjadikan energi surya sebagai sumber panas pada proses pemanasan air. Teknologi kolektor surya merupakan salah satu sarana untuk mengambil panas matahari. Aneka jenis kolektor surya memiliki kinerja yang bervariasi. Kemampuan penyerapan panas yang tinggi dapat diperoleh dari kolektor surya berjenis evacuated tube collector yang mempunyai waktu pemanasan air awal lebih cepat dibandingkan dengan jenis flat plate collector. Penelitian ini bertujuan untuk mengetahui perbandingan efisiensi kolektor surya tabung vakum terhadap solar water heater sederhana. Metode pengujian dilakukan dengan cara memasukan debit air yang sama pada setiap pengujian. Hasil pengujian menunjukkan bahwa solar water heater tabung vakum dengan fluida kerja etanol memberikan efisiensi tertinggi sebesar 44.5% dan efisiensi terendah sebesar 26.4%. Temperatur air output tertinggi mencapai 35,4°C.


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