Experimental Investigation of Patterns in an Acoustic Field’s Decay in Shallow Fresh Water with a Free Boundary

In a previous communication published in the Transactions of the Society (vol. xlv., part ii., p. 407) I attempted to discuss the temperature observations made in Loch Ness during the years 1903 and 1904. Some of the conclusions which I arrived at have not been generally accepted, and in particular limnologists have been slow to acknowledge the existence of the temperature seiche first described by Mr Watson, and which I consider was fully borne out by the observations published in my previous communication. In order to get some ocular demonstration of the possibility of such a phenomenon, I had recourse to laboratory experiments, and it is the description of these experiments which is the main object of the present communication. Besides demonstrating the nature of the temperature seiche, the experiments also throw light on the formation of what has been called by German and Austrian writers the Sprungschicht, and which I now propose to call in English the ‘discontinuity layer,’ which, with the word Sprungschicht, has the merit of being descriptive.

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Experimental investigation on a semi-circular trough-absorber solar still with baffles for fresh water production

Energy Conversion and Management ◽

10.1016/j.enconman.2015.03.052 ◽

2015 ◽

Vol 97 ◽

pp. 235-242 ◽

Cited By ~ 48

Author(s):

Ravishankar Sathyamurthy ◽

P.K. Nagarajan ◽

S.A. El-Agouz ◽

V. Jaiganesh ◽

P. Sathish Khanna

Keyword(s):

Experimental Investigation ◽

Fresh Water ◽

Water Production ◽

Solar Still

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Glycoconjugates Study in Surface Secretions of a Fresh Water Edible Catfish, Clarias gariepinus in Response to Clove Oil Anaesthesia: Experimental Investigation

10.9734/bpi/nicb/v3/2714f ◽

2021 ◽

pp. 26-36

Author(s):

Ajai Kumar Singh

Keyword(s):

Experimental Investigation ◽

Fresh Water ◽

Clarias Gariepinus ◽

Clove Oil

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Studies on the biological control of schistosome-bearing snails. Predators and parasites of fresh-water mollusca: a review of the literature

Parasitology ◽

10.1017/s0031182000022101 ◽

1957 ◽

Vol 47 (3-4) ◽

pp. 413-426 ◽

Cited By ~ 52

Author(s):

Edward H. Michelson

Keyword(s):

Biological Control ◽

Experimental Investigation ◽

Fresh Water ◽

Review Of The Literature ◽

The Past ◽

The Subject

Although the biological control of medically important snails has been suggested from time to time during the past quarter of a century (Nagano, 1927; Bequaert, 1928; Mozely, 1939, 1951; McMullen, 1952), the subject has, as yet, received but little serious consideration. Upon the initiation of our studies (Chernin, Michelson & Augustine, 1956a, b) the literature was searched for references to predators, parasites and diseases of molluscs which might furnish leads for experimental investigation.

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Experimental Study of Solar Energy Based Water Purifier (SEBWP) of Single Slope Type by Incorporating N Similar Evacuated Tubular Collectors (ETCs) having Series Connection

10.21203/rs.3.rs-558075/v1 ◽

2021 ◽

Author(s):

Sanjeev Kumar Sharma ◽

Ashis Mallick ◽

Desh Bandhu Singh ◽

Gopal Nath Tiwari

Keyword(s):

Experimental Investigation ◽

Solar Energy ◽

Fresh Water ◽

Correlation Coefficients ◽

Water Yield ◽

Glass Temperature ◽

Productivity Cost ◽

Series Connection ◽

Energy Payback ◽

Experimental Values

Abstract This research paper deals with the experimental investigation of solar energy based water purifier (SEBWP) of single slope type by incorporating N similar evacuated tubular collectors (ETCs) having series connection. Experimental investigation has been done for a year from August 2018 to July 2019. MATLAB has been used for evaluating performance parameters of the system followed by the validation of these results with their experimental values. A fair agreement has been found between theoretical and experimental values. Values of correlation coefficients for condensing glass temperature, water temperature and water yield have been found to be 0.9932, 0.9928 and 0.9951 respectively. Further, energy metrics, productivity, cost of producing one kg of fresh water, exergoeconomic and enviroeconomic parameters have been evaluated. Values of energy payback time, per kg cost of producing fresh water and exergy loss per unit Rs. have been evaluated to be 1.72 years, Rs. 0.95/kg and 0.128 kWh/Rs. respectively.

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