Geomatic Assessment Of Rainwater Harvesting Potential System At Cmr College Of Engineering & Technology

2021 ◽  
pp. 15380-15391
Author(s):  
Suresh Kandru, Musini Venkateswarlu, NVN Ravali
Keyword(s):  
Rainwater Harvesting ◽  
Water Storage ◽  
Water Harvesting ◽  
Engineering Technology ◽  
Total Potential ◽  
Gis Technique ◽  
Potential System ◽  
Optimum Utilization ◽  
College Of Engineering ◽  
Rainy Days

CMRCET campus comprises about 10 of acres land, where water is the natural resource which is being always in high demands. If the demand is not met, then it will lead to water scarcity. Therefore, RWHS can be considered as a best solution for fighting against scarcity of water. Our present study deals with the identification of the study area boundary and marking it as a Polygon in GIS, Rooftops of various block entities, paths and pavements were digitized using the Polygon vector in GIS. GIS technique is employed for locating boundaries of the study area and for calculating the areas of various types of rooftops and paths. With the application of GIS, it is possible to assess the total potential of water that can be harvested. Potential of rainwater harvesting refers to the capacity of an individual catchment that harnesses the water falling on the catchment during a particular year considering all rainy days. This present study will enable us to identify the suitable type of water harvesting structure along with the number of structures required. Our aim is to maximize water storage and minimize the runoff through drains without making use of it. Thus, Rainwater Harvesting and Conservation aim at the optimum utilization of the rain water.

Crop Productivity Enhancement under Soybean Based Cropping System through Harvested Rain Water in Malwa Region

2021 ◽  
Author(s):  
D.H. Ranade ◽  
M.L. Jadav ◽  
Indu Swarup ◽  
O.P. Girothia ◽  
D.V. Bhagat ◽  
...  
Keyword(s):  
Water Availability ◽  
Irrigation Water ◽  
Sweet Corn ◽  
Rainwater Harvesting ◽  
Cropping System ◽  
Crop Productivity ◽  
Farm Income ◽  
Cropping Pattern ◽  
Water Harvesting ◽  
Net Return

Background: Rainwater harvesting is commonly practiced in areas, where the rainfall is insufficient for crop growing. Due to the intermittent nature of run-off events, it is necessary to store the maximum possible amount of rainwater during the rainy season so that it may be used as irrigation to enhance the crop productivity and farm income under soybean based cropping system.Methods: A study was carried out during 2018-2019 in Indore district of Malwa region. Rainwater harvesting tanks at on station (42´21´2.4m) and on farm (15´11´4m) were constructed for irrigation water availability. Provision of water harvesting tank increased the irrigation water availability (1781m3 and 630m3 respectively) and stored water was managed through various irrigation systems viz. rain gun, drip and flood.Result: It was resulted that the provision of water harvesting tanks enhanced the crop productivity and farm income under soybean based cropping system. Availability of irrigation encouraged the farmers to diversify the cropping pattern (soybean-chickpea, soybean -wheat). It is also clear from the study that even with smaller storage tank and through conjunctive use of ground (1164.2m3) and surface water (596m3), multiple crops (Soybean, potato, sweet corn, chickpea, onion, garlic etc.) can be grown. Soybean-Chickpea cropping system at station gave the net return of 70976 Rs/ha with B: C ratio of 3.15. Soybean-Wheat cropping system at farm gave the net return of 119000 Rs/ha with B:C ratio of 3.38. 

scholarly journals Designating Appropriate Areas for Determining Potential Rainwater Harvesting in Arid Region Using a GIS-based Multi-criteria Decision Analysis ‏

2021 ◽  
Author(s):  
Mohamed Abd-el-Kader ◽  
Ahmed Elfeky ◽  
Mohamed Saber ◽  
Maged AlHarbi ◽  
abed Alataway
Keyword(s):  
Water Management ◽  
Saudi Arabia ◽  
Decision Analysis ◽  
Rainwater Harvesting ◽  
Flash Flood ◽  
Flood Hazard ◽  
Flash Floods ◽  
Flood Mitigation ◽  
Water Harvesting ◽  
Multi Criteria Decision Analysis

Abstract Flash floods are highly devastating, however there is no effective management for their water in Saudi Arabia, therefore, it is crucial to adopt Rainfall Water Harvesting (RWH) techniques to mitigate the flash floods and manage the available water resources from the infrequent and rare rainfall storms. The goal of this study is to create a potential flood hazard map and a map of suitable locations for RWH in Wadi Nisah, Saudi Arabia for future water management and flood prevention plans and to identify potential areas for rainwater harvesting and dam construction for both a flood mitigation and water harvesting. This research was carried out using a spatiotemporal distributed model based on multi-criteria decision analysis by combining Geographic Information System (GIS), Remote Sensing (RS), and Multi-Criteria Decision-Making tools (MCDM). The flood hazard mapping criteria were elevation, drainage density, slope, direct runoff depth at 50 years return period, Topographic witness index, and Curve Number, according to the Multi-criteria decision analysis, while the criteria for RWH were Slope, Land cover, Stream order, Lineaments density, and Average of annual max-24hr Rainfall. The weight of each criteria was estimated based on Analytical Hierarchy Process (AHP). In multi-criteria decision analysis, 21.55 % of the total area for Wadi Nisah was classified as extremely dangerous and dangerous; 65.29 % of the total area was classified as moderate; and 13.15 % of the total area was classified as safe and very safe in flash flood hazard classes. Only 15% of Wadi Nisah has a very high potentiality for RWH and 27.7%, 57.31% of the basin has a moderate and a low or extremely low potentiality of RWH, respectively. According to the developed RWH potentiality map, two possible dam sites were proposed. The maximum height of the proposed dams, which corresponded to the cross section of dam locations, ranged from 6.2 to 9 meters; the maximum width of dams ranged from 573.48 to 725 meters; the maximum storage capacity of reservoirs, which corresponded to the distribution of topographic conditions in the surrounding area, ranged from 3976104.499 m3 to 4328509.123 m3; and the maximum surface area of reservoirs ranged from 1268372.625 m2 to 1505825.676.14 m2. These results are highly important for the decision makers for not only flash flood mitigation but also water management in the study area.

scholarly journals Suitable Site Selection for Rainwater Harvesting and Storage Case Study Using Dohuk Governorate

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 864 ◽  
Author(s):  
Gaylan Rasul Faqe Ibrahim ◽  
Azad Rasul ◽  
Arieann Ali Hamid ◽  
Zana Fattah Ali ◽  
Amanj Ahmad Dewana
Keyword(s):  
Rainwater Harvesting ◽  
Image Data ◽  
Research Area ◽  
Severe Drought ◽  
Water Harvesting ◽  
Water Crisis ◽  
Model Builder ◽  
Dry Zone ◽  
Elevation Model ◽  
Model Inverse

The Middle East is an inherently dry zone. It has experienced severe drought for the last seven years, and climate change has made the situation worse. The Dohuk governorate has been suffering from an appalling water crisis. One possible way of relieving this water crisis is by properly harvesting the rainwater. Rainwater harvesting is a widely used method of storing rainwater in the countries presenting with drought characteristics. Several pieces of research have derived and developed different criteria and techniques to select suitable sites for harvesting rainwater. The main aim of this research was to identify and select suitable sites for the potential erection of dams, as well as to derive a model builder in ArcMap 10.4.1. The model combined several parameters, such as slope, runoff potential, land cover/use, stream order, soil quality, and hydrology to determine the suitability of the site for harvesting rainwater. To compute the land use/cover categories, the study depended on Landsat image data from 2018. Supervised classification was applied using the ENVI 5 software, while the slope mapping and drainage order were extracted using a digital elevation model. Inverse distance weighting (IDW) was used for the spatial interpolation of the rain data. The results demonstrated that suitable areas for water harvesting, are located in the middle and northern part of the research area, and in intensively cultivated zones. The main soil texture in these suitable sites was loam, while the rainfall rate amounted to 750 to 900 mm. This research shows that 15% and 13% of the area studied can be categorized as having excellent and good suitability for water harvesting, respectively. Furthermore, 21% and 27% of the area studied were of moderate and poor suitability, while the remaining 24% were not suitable at all.

Numerical Modeling of Stationary, Dynamic Pebbles and Gas Flows in a Pebble Bed Reactor

2013 ◽  
Author(s):  
Xiang Zhao ◽  
Trent Montgomery ◽  
Sijun Zhang
Keyword(s):  
Department Of Energy ◽  
Gas Flows ◽  
Nuclear Engineering ◽  
Physical Sciences ◽  
Safe Operation ◽  
Pebble Bed ◽  
Engineering Technology ◽  
Pebble Bed Reactor ◽  
Research Activities ◽  
College Of Engineering

This paper presents a review on the research activities conducted at AAMU (Alabama A&M University) in the last five years. The researchers in College of Engineering, Technology and Physical Sciences of AAMU have been receiving financial support from the U.S. Department of Energy under Massie Chair Excellence Program in Nuclear Engineering from 2008. The main objectives of this project were to improve the capability of understanding the static, dynamic behavior of pebbles and gas flows/heat transfer in a pebble bed reactor (PBR), which is the key to the design, optimization and safe operation of the reactors.

scholarly journals The Effect of In-Field Rain Water Harvesting on Orange-Fleshed Sweet Potato Biomass and Yield

2017 ◽  
Vol 9 (10) ◽  
pp. 1
Author(s):  
S. M. Laurie ◽  
N. Nhlabatsi ◽  
H. M. Ngobeni ◽  
S. S. Tjale
Keyword(s):  
Sweet Potato ◽  
Rainwater Harvesting ◽  
Rain Water ◽  
Drought Risk ◽  
Total Biomass ◽  
Water Harvesting ◽  
Total Production ◽  
Root Yield ◽  
Rain Water Harvesting ◽  
Orange Fleshed Sweet Potato

Water scarcity affects both food security and human nutrition. In-field rain water harvesting (IRWH) combines the advantages of rainwater harvesting, no-till, basin tillage and mulching on high drought risk clay soils. In this study, the IRWH system was customized to fit the cropping system of orange-fleshed sweet potato (OFSP). Field trials were conducted over two seasons to compare cultivation of OFSP using IRWH versus conventional tillage (CON). Data collection included plant survival, root initiation, marketable root yield, unmarketable root yield classes and biomass. Planting OFSP using the IRWH system resulted in significantly higher total biomass, higher marketable and total root yield per plant, as well as larger number of roots per plant compared to CON. Despite the relatively higher yield, total production (t/ha) was only significantly higher in season two at 4.6 t/ha vs 2.7 t/ha for CON. Subsistence farmers and households in semi-arid areas may grow small plots of orange-fleshed sweet potato in IRWH opposed to only growing maize and in that way add vitamin A to the diet. This is the first study on the application of IRWH to produce OFSP under rainfed conditions, and more research can be conducted to expand the knowledge on application and benefits of IRWH for OFSP production.

The Application of Rain Water Harvesting Method on a Low Income Flat in Cengkareng, Jakarta

2015 ◽  
Vol 747 ◽  
pp. 317-320 ◽  
Author(s):  
Yosica Mariana ◽  
Junius Ngadinata ◽  
Renhata Katili ◽  
Religiana Hendarti
Keyword(s):  
Water Supply ◽  
Low Income ◽  
Rainwater Harvesting ◽  
Rapid Development ◽  
Rain Water ◽  
Capital City ◽  
Water Harvesting ◽  
Rain Water Harvesting ◽  
Harvesting Method ◽  
Alternative Water

This paper presents a study of the application of the theory of rainwater harvesting for a low income flat in West Jakarta. The background of this study is that Jakarta as a capital city of Indonesia is actually experiencing water crisis because of the rapid population growth and the building construction. This rapid development in consequence affects a reduction on the ground water supply. Therefore, this study analyse the amount of rain water that can be an alternative water supply particularly for a low income flat. This study focused on the water supply for the flushing toilet. To accommodate that objective, a brief calculation of water catchment area and the amount of water that can be harvested has been conducted. The results showed that in general the water supplied by the rain water harvesting can provided 100% annually, but since the precipitation in August is relatively low, in consequence, the water suply should be provided by the local government water company (PDAM).

Experiential Learning for Engineering Technology Students in 21st Century

2010 ◽  
Author(s):  
Janet Dong ◽  
Janak Dave
Keyword(s):  
Service Learning ◽  
Experiential Learning ◽  
Academic Research ◽  
Applied Science ◽  
Engineering Technology ◽  
Concrete Experience ◽  
Global Study ◽  
University Of Cincinnati ◽  
College Of Engineering ◽  
The University

Experiential Learning (EL) is a philosophy in which educators purposefully engage learners in direct experience and focused reflection in order to maximize learning, increase knowledge, and develop skills. Based on the learning cycle proposed by Lewin and the philosophy of Dewey, in that each experience builds upon previous experiences and influences the way future experiences will affect the learner, Kolb[1] developed the experiential learning model to describe the learning process. The four stages of the model are: Concrete Experience, Reflective Observation, Abstract Conceptualization and Active Experimentation. This model shows how theory, concrete experience, reflection and active experimentation can be brought together to produce richer learning than any of these elements can on its own. The College of Engineering and Applied Science did not implement the Kolb model fully due to insufficient resources. Therefore, only the first two of the four stages were used. Many avenues of concrete experiential learning exist for the students in the engineering technology programs at the University of Cincinnati, such as co-op, service learning, global study programs, field projects, academic research, etc. This paper gives a description of the experiential learning of students at the University of Cincinnati in the areas of global study, honors program and undergraduate research. Two faculty members in Mechanical Engineering Technology from the College of Engineering and Applied Science were involved in these experiences. Their experiences, along with student reflections, are discussed in the paper.

scholarly journals Toward improving household livelihoods using rain water harvesting technologies in Matungulu sub-county, Machakos, Kenya

2021 ◽  
Vol 2 (4) ◽  
Author(s):  
Peter Wekesa ◽  
John Muthama ◽  
Jane Mutune
Keyword(s):  
Significant Influence ◽  
Crop Production ◽  
Rainwater Harvesting ◽  
Rain Water ◽  
Sub Saharan Africa ◽  
County Government ◽  
Water Harvesting ◽  
Rain Water Harvesting ◽  
Household Livelihoods ◽  
The Impact

Better utilization of rainfall through rainwater harvesting can greatly increase agricultural productivity, improve food security and alleviate poverty. Water is the main limiting resource for crop production in arid sub-Saharan Africa. The biggest challenge currently is growing water shortage and dwindling rivers. This has impacted the livelihoods of rural population in arid and semi-arid counties. The introduction of novel rain-water harvesting (RWH) is, however, seeking to mitigate the effects of perennial droughts in arid areas. Successful adoption of such technologies has the potential to alleviate water problems faced by rural households. In Kenya, very little research has been conducted about adoption of water harvesting technologies and their role in curbing water shortages. Therefore, there was a need to interrogate the extent to which adoption of water harvesting technologies has impacted households in Matungulu Sub-County. Focus group discussions, interview with key informants, and structured questionnaires were used to collect data for the study which were then analyzed using SPSS version 22 software. The findings indicated that overall, a composite mean of 4.04 and a standard deviation of 0.699 of the respondents agreed that incentives from the county government significantly promoted water harvesting technologies. This was confirmed by a positively strong and significant correlation between the integration of RHT in the county development agenda and the impact on household livelihoods. A further regression analysis indicated that Integration of RHT had a positive and significant influence on household livelihoods (β= 0.755, t=22.351, p=0.000<0.05). Results of this survey indicate that rainwater technologies are financed mostly by household heads and county government initiatives have not been adequately felt. There is a strong indication from the study that water harvesting technologies had a statistically significant influence on the impact on household livelihoods. To ensure sustainability of rainwater harvesting technologies, the study recommends that Machakos

scholarly journals Assessment ASSESSMENT OF RAIN WATER HARVESTING SYSTEM

2020 ◽  
Vol 9 (02) ◽  
Author(s):  
Syed Adnan Shah ◽  
Dr Mujahid Khan ◽  
Ikramullah Qayuum ◽  
Malik Ashar
Keyword(s):  
Rainwater Harvesting ◽  
Curve Number ◽  
Water Harvesting ◽  
Alternative Source ◽  
Tube Wells ◽  
Rainfall Depth ◽  
Engineering Department ◽  
Small Tube ◽  
Near Future ◽  
Gravity System

The life of the inhabitants of the globe is greatly dependant on water. Providing portable water to communities is of prime interest. Scarcity of water is a threat in near future in Pakistan. There is a need to search for alternate sources of water to fulfil the community requirement. Rainwater Harvesting (RWH) system is a better alternative.  Keeping in view the vast application of this system, it is adopted as an alternative source of water in a village of Abbottabad city where there is scarcity of water.  According to Public Health Engineering Department (PHED), the currently available gravity system and three tube wells are not sufficient to supply water to all the population. For this study, first, the rainfall data is collected and then by using the principle of rainwater harvesting system, the quantity of available water is calculated. The calculations were made using SCS curve number method using mean monthly rainfall depth. From calculation, we found that not only for current population but for population in 2028 can also be served by storing the water that we get from Rainwater Harvesting system if stored in a reservoir. But after 20 years i.e. in 2038, there will be deficiency of 146, 449 gallons per day of water for entire community which can easily be arranged from a small tube well. Therefore, on the basis of this study, it was recommended to the PHED of Abbottabad city to store the rainwater in a reservoir so that it can be easily utilised.

scholarly journals A data-driven approach to assessing the impact of water harvesting structures on regional water storage in East Africa

2021 ◽  
Author(s):  
J. A. Eisma ◽  
V. Merwade
Keyword(s):  
East Africa ◽  
Vegetative Growth ◽  
Water Storage ◽  
Water Reservoir ◽  
Early Warning Systems ◽  
Subsurface Water ◽  
Small Scale ◽  
Water Harvesting ◽  
The Impact ◽  
Regional Water

Abstract A small-scale water harvesting structure known as a sand dam has gained popularity across East Africa due to the efforts of non-governmental organizations. A sand dam is a subsurface water reservoir that stores water between sand grains. Stored thus, the water is filtered and protected from evaporation. This study uses remotely sensed data to investigate the impact of these structures on water storage and vegetative growth. The relationship between sand dams and water storage was modeled using a binary sand dam factor, climate data from the Famine Early Warning Systems Network Land Data Assimilation System (FLDAS), and water storage data measured by the Gravity Recovery and Climate Experiment (GRACE) twin satellites. The analysis revealed that GRACE largely fails to detect a statistically significant impact of sand dams on regional water storage. However, analysis of the Normalized Difference Vegetation Index (NDVI) indicated that sand dams have a significant impact on regional vegetation. Vegetative growth is correlated with groundwater levels, indicating that sand dams have a positive impact on water storage albeit on a smaller scale than GRACE can regularly detect. Significantly, this study shows that NDVI data can be used effectively to study small-scale, regional changes in vegetation and water storage.

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