{"id":1293,"date":"2018-10-09T13:47:28","date_gmt":"2018-10-09T13:47:28","guid":{"rendered":"https:\/\/aboutfoundry.com\/?p=1293"},"modified":"2026-08-27T14:47:31","modified_gmt":"2026-08-27T14:47:31","slug":"energy-energy-consumption","status":"publish","type":"post","link":"https:\/\/aboutfoundry.com\/en\/energy-energy-consumption\/","title":{"rendered":"Energy \/ Energy consumption"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Energy \/ Energy consumption is the designation for the product of performance (output) x time, and is specified in kWh. In melting, the concept of \u201cenergy consumption\u201d per tonne of melted material is usually of interest. Here however, a distinction must be made between theory and practice. The theoretical requirement is around 390 kWh per tonne of iron. The grid energy demand of a well-designed high-output casting furnace is 510 to 540 kWh\/tonne at the tapping temperatures usual in foundries (approx. 1,450 to 1,500 \u00b0C), while typical plants in practical melting operation require 585 to 640 kWh\/tonne.<sup><a href=\"#q1\">[1]<\/a><\/sup> If a crucible furnace is operated as a \u201cmelting machine\u201d with optimum charging, extraction and process control, energy consumptions of 560 kWh\/tonne at the higher tapping temperature of 1,550 \u00b0C can be achieved. The surcharge compared to the high-output range is due to temperature: approx. 15 kWh\/t per 50 K of additional temperature, on the grid side (calculation check: 0.83 kJ\/(kg\u00b7K) x 50 K = 11.5 kWh\/t of useful energy, roughly 15.3 kWh\/t of grid energy at an efficiency of 0.75; cf. \/melting-time\/), so that 560 kWh\/t at 1,550 \u00b0C is consistent with the high-output range at 1,450 to 1,500 \u00b0C.<\/p>\n\n\n<h2>References<\/h2>\n<ol class=\"quellen\">\n<li id=\"q1\">Dr. Erwin D&ouml;tsch (ABP Induction Systems GmbH): <a href=\"https:\/\/www.guss.de\/prozess\/schmelzen\/induktionsofentechnologie-und-energieeffizienz\" rel=\"noopener\" target=\"_blank\">Induktionsofentechnologie und Energieeffizienz<\/a> (induction furnace technology and energy efficiency). GIESSEREI 06\/2011, published on guss.de (Bundesverband der Deutschen Gie&szlig;erei-Industrie e.&nbsp;V.): specific enthalpy 390 kWh\/t for melting and superheating cast iron to 1,500&nbsp;\u00b0C, grid energy demand 520 kWh\/t at 1,500&nbsp;\u00b0C, practical melting operation 560 to 650 kWh\/t. Accessed 27 August 2026.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>Energy \/ Energy consumption is the designation for the product of performance (output) x time, and is specified in kWh. In melting, the concept of \u201cenergy consumption\u201d per tonne of melted material is usually of interest. Here however, a distinction must be made between theory and practice. The theoretical requirement is around 390 kWh per &hellip; <a href=\"https:\/\/aboutfoundry.com\/en\/energy-energy-consumption\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Energy \/ Energy consumption<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[2,2],"tags":[],"class_list":["post-1293","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":{"adresse":"","telefon":"","e-mail":"","webseite":""},"_links":{"self":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/comments?post=1293"}],"version-history":[{"count":7,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1293\/revisions"}],"predecessor-version":[{"id":5964,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1293\/revisions\/5964"}],"wp:attachment":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/media?parent=1293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/categories?post=1293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/tags?post=1293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}