{"id":6239,"date":"2023-03-19T06:39:33","date_gmt":"2023-03-19T01:09:33","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=6239"},"modified":"2025-03-27T13:37:43","modified_gmt":"2025-03-27T08:07:43","slug":"sand-battery","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/sand-battery\/","title":{"rendered":"Sand Battery"},"content":{"rendered":"<h2><strong>About Sand Battery:<\/strong><\/h2>\n<ul>\n<li>The battery, made of sand collected from construction sites, can solve the problem of round-the-year energy supply, a known limitation of renewable energy sources that can be harnessed intermittently.<\/li>\n<li>Sand can be <strong>heated up to 600 degrees Celsius<\/strong> (\u00b0C), whereas water starts to boil at 100\u00b0C. It also has low heat conductivity, which reduces energy loss.<\/li>\n<li>The storage system has three <strong>main components<\/strong>: <strong>the sand silo,<\/strong> an <strong>electrical air<\/strong> heater and an <strong>air-to-water heat exchanger.<\/strong><\/li>\n<li>For charging the sand silo, the air is heated to 600\u00b0C in the electric air heater.<\/li>\n<li>The hot air is then circulated inside the silo using a heat-exchange pipe and blowers to raise the temperature of the sand at the silo\u2019s core to 600\u00b0C.<\/li>\n<li>When the storage enters the discharging stage, the blowers are used to pump air into the pipe inside the sand silo.<\/li>\n<li>Once the air reaches 200\u00b0C, it is transferred to the air-to-water heat exchanger, where it is used to boil water. It is then sent to the heating network.<\/li>\n<li>The <strong>storage system requires electricity at all times.<\/strong><\/li>\n<li>It is needed to charge the battery, monitor the temperature during standby and run the blowers when the battery is used.<\/li>\n<li>1,000 times more power is discharged as heat than is used as electricity.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3>Q1) What is Renewable Energy?<\/h3>\n<p>Renewable energy is energy derived from natural sources that are replenished at a higher rate than they are consumed. For example Sunlight and wind.<\/p>\n<p><strong>Source:<\/strong>\u00a0<a href=\"https:\/\/www.downtoearth.org.in\/news\/energy\/dirt-cheap-backup-why-finland-s-installation-of-the-world-s-1st-sand-battery-may-be-a-game-changer-87804\" target=\"_blank\" rel=\"nofollow noopener\"><u>Dirt cheap backup: Why Finland\u2019s installation of the world\u2019s 1st sand battery may be a game-changer<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sand Battery is made of sand collected from construction sites.<\/p>\n","protected":false},"author":5,"featured_media":6240,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-6239","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/6239","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=6239"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/6239\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/6240"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=6239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=6239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=6239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}