Showing papers by "Ravishankar Sathyamurthy published in 2016"
TL;DR: In this article, the performance of compound parabolic concentrator assisted tubular solar still (CPC-TSS) with different augmentation systems was studied. And the results showed that, the productivity of un-augmented CPCTSS and CPC-CTSS were 3710 ml /day and 4960 ml/day, respectively.
147 citations
TL;DR: In this paper, the performance of a single slope solar still with spherical ball salt storage was analyzed and it was observed that the yield of freshwater from the solar still achieved the maximum yield of 3.7 kg/m2 as compared to a conventional single-slope solar still without any storage material.
145 citations
TL;DR: In this paper, the performance of a compound parabolic concentrator-concentric tubular solar still (CPC-CTSS) coupled with a single slope solar still was investigated.
82 citations
TL;DR: In this paper, the authors presented the theoretical analysis on the effect of mass flow, feed water temperature, internal heat transfer coefficient and the absorber plate temperature of an improved inclined solar still for producing fresh water.
71 citations
48 citations
TL;DR: An innovative design compound conical concentrator (CCC) with a crescent shaped absorber coupled to a single slope solar still (SSSS) has been investigated in this article, where the purpose of the external absorber is to circulate the heat by natural circulation mode.
36 citations
TL;DR: In this article, a review of different geometrical shapes of solar still is presented, and the authors conclude that the geometry in the solar still significantly influences the yield of fresh water.
Abstract: Water consumption by humanity is one of the major yardsticks to assess its civilization. Humans depend on groundwater sources for drinking. Some of these underground water sources cannot be used for drinking due to pollution. To solve the issues related to drinking water, several methods are employed, and a promising one is solar desalination. This paper communicates a review of different geometrical shapes of solar still. The present study concludes that the geometry in the solar still significantly influences the yield of fresh water.
32 citations
TL;DR: In this paper, the authors compared a single-slope solar still, a compound conical concentrator (CCC) solar still and a compound parabolic concentrator-tubular solar still (CPC-TSS) and found that the CCC solar still provided the maximum yield.
Abstract: This research article briefly summarizes the augmentation of condensate output using concentrators. This study compares a single-slope solar still, a compound conical concentrator (CCC) solar still, and a compound parabolic concentrator–tubular solar still (CPC–TSS). The effect of miniaturization of the absorber (increase in the concentration factor) and some modifications in the solar still assembly show a remarkable increase in output. The measured daily yield rate per square meter of absorber area of the single slope solar still, CCC solar still, and CPC–TSS is 2,100, 18,000, and 6,100 ml, respectively. It was found that the CCC solar still provides the maximum yield.
29 citations
TL;DR: In this article, a detailed experimental study is carried out on a conventional single slope solar still with sand heat energy storage for improving the yield of fresh water, and the results show that the use of sand as energy storage in cuboidal boxes has improved by 145% than that of conventional single-slope solar still.
Abstract: In the present investigation, a detailed experimental study is carried out on a conventional single slope solar still with sand heat energy storage for improving the yield of fresh water. Yield of the solar still depends on the type of energy storage material used in the basin. Yield of the present study is compared with the solar still without any storage medium. Similarly, mathematically correlations of yield as a function of water and basin temperature were depicted. The results show that the use of sand as energy storage in cuboidal boxes the yield of solar still has improved by 145% than that of conventional single slope solar still. The total yield from the solar still with and without energy storage materials was found to be 5.1 and 1.9 kg/m2day respectively.
26 citations
TL;DR: In this article, a study was conducted to characterize the native soil at shrimp Gher and agricultural land in Khulna, Bangladesh, where eight locations were selected and among them five Ghers from south part of Dumuria which is about 60 km away from KUET campus.
Abstract: This study was conducted to characterize the native soil at shrimp Gher and agricultural land in Khulna, Bangladesh. Eight locations were selected and among them five Ghers from south part of Dumuria which is about 60 km away from KUET campus, Khulna, Bangladesh. In the laboratory, various parameters such as salinity, organic content, chloride, pH, alkalinity, conductivity and moisture content were determined by following standard methods. The chloride and alkalinity were determined manually and pH, conductivity and salinity were determined by digital meter. The organic and moisture content both were highest at 30 cm depth for both the cases of shrimp Gher and agricultural land. Chloride was highest at 15 cm depth for both the cases shrimp Gher and agricultural land. Alkalinity was highest at 30 cm depth for shrimp Gher, however, the lowest was for agricultural land. It is concluded that the salinity and organic content vary with depth, age and soil condition.
1 citations
01 May 2016
TL;DR: In this paper, a study was conducted to characterize the native soil at shrimp Gher and agricultural land in Khulna, Bangladesh, where eight locations were selected and among them five Ghers from south part of Dumuria which is about 60 km away from KUET campus.
Abstract: This study was conducted to characterize the native soil at shrimp Gher and agricultural land in Khulna, Bangladesh. Eight locations were selected and among them five Ghers from south part of Dumuria which is about 60 km away from KUET campus, Khulna, Bangladesh. In the laboratory, various parameters such as salinity, organic content, chloride, pH, alkalinity, conductivity and moisture content were determined by following standard methods. The chloride and alkalinity were determined manually and pH, conductivity and salinity were determined by digital meter. The organic and moisture content both were highest at 30 cm depth for both the cases of shrimp Gher and agricultural land. Chloride was highest at 15 cm depth for both the cases shrimp Gher and agricultural land. Alkalinity was highest at 30 cm depth for shrimp Gher, however, the lowest was for agricultural land. It is concluded that the salinity and organic content vary with depth, age and soil condition.