Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810025518
Authors: Dhirajalal, Patel Akashkumar
Advisor: Singh, P. K.
Title: Study on Effectiveness of Floating Material for Controlling Evaporation from Small Water Bodies
Publisher: MPUAT, Udaipur
Citation: Dhirajalal and Singh, 2017
Language: en
Type: Thesis
Pages: 87
Agrotags: null
Keywords: Study on Effectiveness of Floating Material for Controlling Evaporation from Small Water Bodies
Abstract: Average annual evaporation from reservoirs water bodies in India varies from 50 cm to 300 cm which is higher than precipitation available in the region. So it is great necessary to save water from open water body of farm pond. The main objectives of the research work are to study the effect of different floating materials as plastic sheet, plastic balls, thermocol balls and maize cob on evaporation, comparison of their economics for reducing evaporation and quality of water as well as materials. The project was conducted for two different seasons at plasticulture farm of College of Technology and Engineering Udaipur. The sensitivity analysis was conducted between evaporation to climate variables in winter season, summer season and annually. Sensitivity analysis for minimum temperature, maximum temperature, relative humidity, wind speed and sunshine hours were conducted using SPSS 16.0 and Excel based correlation coefficient and root mean square error (RMSE).It was observed that maximum temperature show positive and strong correlation during dry season and relative humidity show negative and moderate relation during winter season. Maximum temperature, minimum temperature, wind speed have strong and positive correlation with evaporation and relative humidity has a negative and strong correlation annually. So it was concluded that evaporation is highly correlated with temperature, relative humidity and wind speed. Evaporation is one of the main sources of water loss from artificial reservoirs used in agriculture sector. The need for water saving is greatest in areas of scarce rainfall and low runoff. Water losses by evaporation from storage reservoirs must be minimized for greatest utility of limited supplies. To study evaporation reduction, plastic sheet, plastic balls, thermocol balls and maize cob was used as floating cover of the water filling plastic tub of 50 cm diameter and 25 cm depth. The maximum percent reduction was observed in case of plastic film (85.01%), followed by plastic balls (63.71%), thermocol balls (50.71%) and maize cob (15.41%), over control for winter season. The maximum percent reduction was observed to be in case of plastic film (71.70%), followed by plastic balls (58.94%), thermocol balls (35.49%) and maize cob (10.33%), over control during summer season. From economic point of view the study shows maximum B:C ratio in plastic sheet material which is near about 4.92. All other material like plastic ball, thermocol ball and maize cob also have good B:C ratio as 1.22, 1.33, 1.04 respectively. Therefore, plastic sheet was found to be good material to reduce evaporation from open water body.
Description: Study on Effectiveness of Floating Material for Controlling Evaporation from Small Water Bodies
Subject: Land and Water Management Engineering
Theme: Study on Effectiveness of Floating Material for Controlling Evaporation from Small Water Bodies
Research Problem: Study on Effectiveness of Floating Material for Controlling Evaporation from Small Water Bodies
These Type: M.Tech.
Issue Date: 2017
Appears in Collections:Thesis

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