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Author

Sanjeev Kumar

Other affiliations: Indian Institutes of Technology
Bio: Sanjeev Kumar is an academic researcher from Indian Institute of Technology Delhi. The author has contributed to research in topics: Solar still & Solar energy. The author has an hindex of 9, co-authored 14 publications receiving 342 citations. Previous affiliations of Sanjeev Kumar include Indian Institutes of Technology.

Papers
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Journal ArticleDOI
TL;DR: In this article, the authors presented the annual performance of an active solar still and derived analytical expressions for water and glass cover temperatures and yield in terms of design and climatic parameters.

94 citations

Journal ArticleDOI
TL;DR: In this article, the fabrication of TiO2 nanoparticles (TNPs) functionalized ZnO nanoflakes (ZNFs) and their outstanding detoxification ability towards the methylene blue (MB), rhodamine 6G (R6G) and Oxytetracycline (OTC) molecules solution in water TEM studies confirm the formation of 3D architecture of ZNO-TiO2 nanohybrids while high-resolution transmission electron microscopy assures the uniform functionalization of TNPs over ZNFs.

82 citations

Journal ArticleDOI
TL;DR: In this article, an attempt is made to evaluate the convective mass transfer coefficient during drying of jaggery in a controlled environment, and the experimental data of mass evaporated, temperatures, room air, and relative humidity were measured and the data used to evaluate convective transfer coefficient by regression analysis.

76 citations

Journal ArticleDOI
TL;DR: In this article, the surface area dependent performance of 2D-MoS2 nanostructures is explored for various environmental applications, and a charge transfer mechanism for ultrafast SERS detection and enhanced photodegradation activity has been proposed and explained precisely.

73 citations

Journal ArticleDOI
TL;DR: In this paper, a thermal analysis of an active solar still for the optimization of collectors as well as the basin area for a higher yield for a given water depth is presented, where expressions for the temperatures, the water and glass covers and the yield have been derived.

54 citations


Cited by
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Journal ArticleDOI
TL;DR: In this article, the authors present a review of various systems that use renewable energy sources for desalination, including solar collectors, photovoltaics, solar ponds and geothermal energy.

949 citations

Journal ArticleDOI
TL;DR: A review of the current solar desalination research activities can be found in this paper, followed by discussions of solar assisted desalification processes and a variety of possible combinations of solar and fossil fuel.
Abstract: Seawater desalination is an important process to meet the increasing demand for fresh water demand; however, it is highly energy intensive due to the high salinity of the source. Studies on using solar energy to drive seawater desalination are very actively being pursued. This paper reviews the current solar desalination research activities first, followed by discussions of solar assisted desalination processes and a variety of possible combinations. Solar assisted desalination has been proved technically feasible; however the combined solar and fossil fuel desalination, and desalination using low grade waste heat could be more cost effective at this time. Though solar assisted desalination processes have not been commercialized as yet, with the current ongoing research, they remain a valid option for future desalination plants.

401 citations

Journal ArticleDOI
TL;DR: In this paper, a review on solar still performance is presented, the results indicated that, the basin water depth is considered the main parameter that affects the still performance, the review showed that; the solar still cover with inclination equal to latitude angle receives sun rays close to normal sun rays throughout the year.

316 citations

Journal ArticleDOI
01 Oct 2009-Energy
TL;DR: In this paper, a concave wick surface was used for evaporation, whereas four sides of a pyramid shaped still were used for condensation, and a jute wick increased the amount of absorbed solar radiation and enhanced the surface area.

316 citations

Journal ArticleDOI
TL;DR: A detailed review of different studies on active solar distillation system over the years is provided in this paper, where thermal modelling was done for various types of active single slope solar distilling system.
Abstract: All over the world, access to potable water to the people are narrowing down day by day. Most of the human diseases are due to polluted or non-purified water resources. Even today, under developed countries and developing countries face a huge water scarcity because of unplanned mechanism and pollution created by manmade activities. Water purification without affecting the ecosystem is the need of the hour. In this context, many conventional and non-conventional techniques have been developed for purification of saline water. Among these, solar distillation proves to be both economical and eco-friendly technique particularly in rural areas. Many active distillation systems have been developed to overcome the problem of lower distillate output in passive solar stills. This article provides a detailed review of different studies on active solar distillation system over the years. Thermal modelling was done for various types of active single slope solar distillation system. This review would also throw light on the scope for further research and recommendations in active solar distillation system.

308 citations