Daily Current Affairs Quiz 2019<\/a><\/strong><\/p>\n\n\n\nThe increasing demand for energy is one of the most\nchallenging problems of the global economy, even survival, in the twenty-first\ncentury. Coupled with dwindling fossil fuel reserves and increasing awareness\nof pollution issues, there is now an urgent need to develop renewable energy\noptions.<\/p>\n\n\n\n
The Research is being headed at IIT Madras by Dr. Abdus\nSamad, Associate Professor, Department of Ocean Engineering, who works towards\nextracting energy from the ocean waves. The work of Dr. Abdus Samad and his\nresearch team is aimed at meeting Renewable Energy and Climate Change\nobjectives of the Government of India.<\/p>\n\n\n\n
Highlighting the applications of this research, Dr. Abdus\nSamad said, \u201cWhile solar and wind energy has been the flagship for renewable\nenergy research, these options are not the only direct unlimited source of\npower. India\u2019s long coastline and many estuaries and gulfs provide ample\nopportunities to harness wave power to meet rising energy needs and the\nDepartment of Ocean Engineering, IIT Madras, under the aegis of the Indian\nGovernment\u2019s Department of Ocean Development has been working to bring wave\nenergy closer to reality since 1983.\u201d<\/p>\n\n\n\n
Recent research by Dr. Abdus Samad\u2019s group at IIT Madras, in\ncollaboration with National Institute of Ocean Technology, is being funded by\nMinistry of Earth Sciences, Government of India, and focuses on improving the\ndevices and machines used for wave energy harvesting.<\/p>\n\n\n\n
The Research Team comprises of Mr. Aravind George, Ms.\nSuchithra Ravikular, Mr. R. Ananthnarayan, and Dr. Abdus Samad from the\nDepartment of Ocean Engineering, IIT Madras. Mr. George is the first author of\nthe paper, and he is now at the University of Melbourne, Australia, completing\nhis Ph.D. On the other hand, the scientists, Mr. Prasad Dudhgaonkar, Mr. Biren\nPatnaik, and Dr. Purnima Jalihal are from NIOT. Dr. Jalihal is the Head of\nEnergy and Fresh Water group of NIOT.<\/p>\n\n\n\n
The challenges to realizing practical wave energy have been\nthat while waves harbor copious energy, they are also unsteady and the ocean\nhas unpredictable forces acting on the energy devices. Efficient recovery of\nenergy from waves hinges on improving the performance of devices that convert\ninconsistent wave movement to electricity.<\/p>\n\n\n\n
Elaborating on this, Dr. Abdus Samad said, \u201cWave-energy\nharvesting turbines capture the energy of the periodic up-down motion of ocean\nwaves through a device called Oscillating Water Column. One such turbine called\nimpulse turbine is connected to a generator which converts the mechanical\nenergy into electrical energy. The turbine uses the energy of a high-velocity\nair jet created by the waves in the device.\u201d<\/p>\n\n\n\n
The aerodynamic performance of the turbine plays a major\nrole in the wave-to-wire conversion efficiency. The coupling between the\nhydrodynamic process of the wave energy absorption and the turbine\u2019s\naerodynamic process is affected by the interplay between the pressure in the\noscillating water column and the airflow rate through the turbine.<\/p>\n\n\n\n
This interplay is called the damping effect. The variability\nof waves induces varying turbine speed, which in turn affects damping. Dr.\nAbdus Samad and his team analyze the running characteristics of a turbine\nconnected to an oscillatory airflow test rig and subjected to varying\nrotational speeds.<\/p>\n\n\n\n
In their recently published paper, the team presents the\nvariations of pressure drop and pressure coefficient along with damping\ncharacteristics of the test rig, based on acceleration and deceleration of the\nturbine. In effect, they present the characteristics of the turbine-chamber\ncoupling.<\/p>\n\n\n\n
This work by Dr. Abdus Samad\u2019s team offers a good launchpad\nfor future research in the area of wave power. Such future research would\nexamine the power output of the turbine, the turbine mean efficiency, and the\nchamber efficiency to relate turbine\u2010chamber coupling in greater detail, which\nwould help in the design of more efficient wave energy harvesting devices.<\/p>\n\n\n\n
The turbine is the heart of the wave energy system and a\nhuge amount of research works are done through fluid dynamic analysis,\nexperimental system development, design, and tests. To overcome the challenges\ncoming on the way to develop from scratch to the ocean test took 7 years and\nmore than two dozen of researcher\u2019s work on it.<\/p>\n\n\n\n
The turbines being developed are for the floating and fixed\nwave devices being developed at NIOT. The hydrodynamics, floating body\ndynamics, offshore-related aspects and integration of the turbine \u2013 generator\nmodule with the device are all being done by NIOT.<\/p>\n","protected":false},"excerpt":{"rendered":"
Indian Institute of Technology Madras and National Institute of Ocean Technology (NIOT) Researchers are working towards developing better turbines that can harness the power of ocean waves to generate electricity. Their most recent studies on turbine-chamber coupling have been published in the reputed peer-reviewed International Journal of Energy Research. Daily Current Affairs Quiz 2019 The […]<\/p>\n","protected":false},"author":13,"featured_media":4585,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[403],"offerexpiration":[],"class_list":["post-4584","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-current-affairs-articles","tag-iit-m-and-niot"],"_links":{"self":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/4584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/comments?post=4584"}],"version-history":[{"count":1,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/4584\/revisions"}],"predecessor-version":[{"id":4586,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/4584\/revisions\/4586"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media\/4585"}],"wp:attachment":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media?parent=4584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/categories?post=4584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/tags?post=4584"},{"taxonomy":"offerexpiration","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/offerexpiration?post=4584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}