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Your search keyword '"floating modules"' showing total 3 results
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3 results on '"floating modules"'

1. Life support technology of beach glamping using renewable energy of sea waves

Author

V. V. Mironov, Yu. A. Ivanyushin, D. A. Suglobov, D. V. Mironov, and L. I. Maksimov

Subjects
pump-compressor, reverse osmosis, sea water, floating modules, bellows, wave characteristics, productivity, Architecture, NA1-9428, Construction industry, HD9715-9717.5
Abstract

Introduction. The growth of domestic tourism in the Russian Federation is forecasted to reach 30 % by the end of 2023 compared to the results of 2022. At the same time, ecological tourism in areas with undeveloped engineering infrastructure has become one of the trends of recent years.Materials and methods. To solve the problems of life support of temporary accommodation facilities (glamping), a technical solution for the conversion of hydraulic wave energy in the coastal zone of Russian sea areas is proposed. The purpose of the research is a feasibility study of the application of innovative life support technology based on renewable wave energy to provide municipal resources, including fresh water, to non-permanent accommodation facilities (beach glamping). To achieve this goal, numerical research methods were used using statistical data and long-term observational data, searching for domestic and foreign sources with analysis and comparison of the contained data.Results. Calculations of fresh water productivity are presented, taking into account the unevenness of wave characteristics (heights, periods) throughout the year using the example of the Black sea and the Sea of Japan. It is established that even taking into account the uneven wave characteristics, the Black Sea coastal zone is a commercially significant territory for implementation. The coastal zone of the Sea of Japan is a promising territory in the case of seasonal operation of facilities with the proposed technology. The payback period of the technology for operation on the Black Sea coast was determined.Conclusions. The proposed pump-compressor is able to replace energy-consuming equipment of reverse osmosis installations — high-pressure pumps for supplying seawater to the membranes. The use of technology on the freezing seas is expedient in the non-year-round operation mode. The payback period, depending on the cost of electricity, does not exceed two years without taking into account the associated removal of useful pneumatic power.

Published
2024
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2. Characterising rainfall and effective evaporation mitigation

Author

Peirson, William, Civil & Environmental Engineering, Faculty of Engineering, UNSW, Cox, Ronald, Civil & Environmental Engineering, Faculty of Engineering, UNSW, Hassan, M Mahmudul, Civil & Environmental Engineering, Faculty of Engineering, UNSW, Peirson, William, Civil & Environmental Engineering, Faculty of Engineering, UNSW, Cox, Ronald, Civil & Environmental Engineering, Faculty of Engineering, UNSW, and Hassan, M Mahmudul, Civil & Environmental Engineering, Faculty of Engineering, UNSW

Abstract

Reducing evaporation losses from open water storages is of paramount importance for water security in arid countries. In many parts of Australia, the annual average evaporation exceeds the annual precipitation by more than 5 times. High capital and maintenance costs of manufactured products are a significant barrier to implementation. Single and multilayer floating modular devices as a potential evaporation mitigation method has been investigated extensively from the coastal to the arid zone of Australia for the first time. Systematic reduction in evaporation is demonstrated, approximately linearly proportional to the covered surface. Evaporation is reduced by approximately 40% at the maximum packing densities achievable for a single layer of floating recycled bottles. Increasing device thickness to 5 layers of plastic bottles assemblies have shown that they can effectively mitigate evaporation loss by between 52-79% depending on the boundary conditions. Plastic spheres can reduce evaporation loss by 54%. Thus study also provided the opportunity to capture long term measurement of the Droplet size and fall velocity distributions of natural rainfall. Formal expressions that link droplet size distribution, intensity, fall velocity and kinetic energy of natural rainfall are developed for both the sites. These are reconciled between different recent studies and compared with data collected from both the locations. Measurements of terminal velocity at both the sites show that raindrops of all size class fall at significantly lower speeds than the classical terminal velocities of distilled water in stagnant air. Fall velocities of droplets in a certain size class have been found normally distributed and the width of the distribution increases with increasing rainfall intensity for both the sites. The energy of rain is approximately constant at intensities higher than 80 mm/hr both at the coastal and arid site.

Published
2017

3. Characterising rainfall and effective evaporation mitigation

Author

Hassan, M Mahmudul

Subjects
floating modules, arid and coastal zones, arid zones, multilayers, evaporation mitigation, droplet fall speed, raindrop size distribution, coastal areas
Abstract

Reducing evaporation losses from open water storages is of paramount importance for water security in arid countries. In many parts of Australia, the annual average evaporation exceeds the annual precipitation by more than 5 times. High capital and maintenance costs of manufactured products are a significant barrier to implementation. Single and multilayer floating modular devices as a potential evaporation mitigation method has been investigated extensively from the coastal to the arid zone of Australia for the first time. Systematic reduction in evaporation is demonstrated, approximately linearly proportional to the covered surface. Evaporation is reduced by approximately 40% at the maximum packing densities achievable for a single layer of floating recycled bottles. Increasing device thickness to 5 layers of plastic bottles assemblies have shown that they can effectively mitigate evaporation loss by between 52-79% depending on the boundary conditions. Plastic spheres can reduce evaporation loss by 54%. Thus study also provided the opportunity to capture long term measurement of the Droplet size and fall velocity distributions of natural rainfall. Formal expressions that link droplet size distribution, intensity, fall velocity and kinetic energy of natural rainfall are developed for both the sites. These are reconciled between different recent studies and compared with data collected from both the locations. Measurements of terminal velocity at both the sites show that raindrops of all size class fall at significantly lower speeds than the classical terminal velocities of distilled water in stagnant air. Fall velocities of droplets in a certain size class have been found normally distributed and the width of the distribution increases with increasing rainfall intensity for both the sites. The energy of rain is approximately constant at intensities higher than 80 mm/hr both at the coastal and arid site.

Published
2017
Full Text
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