{"id":17618,"date":"2020-09-16T07:23:18","date_gmt":"2020-09-16T05:23:18","guid":{"rendered":"https:\/\/naider.com\/naiderlab\/oportunidades-de-aprovechamiento-del-calor-residual-industrial\/"},"modified":"2023-04-24T13:40:25","modified_gmt":"2023-04-24T11:40:25","slug":"opportunities-for-the-use-of-industrial-residual-heat","status":"publish","type":"naiderlab","link":"https:\/\/naider.com\/en\/naiderlab\/knowledge\/articles\/opportunities-for-the-use-of-industrial-residual-heat\/","title":{"rendered":"Opportunities for the use of industrial residual heat"},"content":{"rendered":"\n
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*Original article published by Confebask (link<\/a>)<\/strong><\/em><\/figcaption><\/figure>\n\n\n\n

The need to improve\nenergy efficiency in the industrial sector is unquestionable. Is about\na sector that approximately consumes a third of the world’s demand for\nenergy, mostly fossil fuels. An energy source whose consumption\nmassive and progressive exhaustion can lead to situations of increases in\nprices and energy insecurities. <\/p>\n\n\n\n

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Figure 1. Evolution of industrial energy consumption in the Basque Country. Source: Euskadi 2030 Energy Strategy (EVE). <\/strong> <\/figcaption><\/figure>\n\n\n\n

For the industrial sector to reduce dependence on this energy source and in turn reduce its environmental impact, it has two options: increase the use of renewable energy or reduce energy consumption. Or better, combine both options.<\/p>\n\n\n\n

In some environments,\nas is the case of Euskadi, the industrial sector plays an important role,\nboth economically and energetically. The Basque industry is responsible for the\n42% of final energy consumption, compared to the 26% average in the European Union.\nTherefore, it is a fundamental sector, to achieve the objectives of\ndecarbonization and energy efficiency of the economy as a whole.\nFor this reason the Energy Strategy\nof Euskadi 2030<\/em><\/a>, establishes that one of the areas of action must be\nbe to improve competitiveness and energy efficiency in the industry\nbasque.<\/p>\n\n\n\n

One of the areas of\naction of greatest industrial interest is the recovery of heat\nresidual. Waste heat from European industrial production is estimated to\nIt has a potential value of more than \u20ac4,000M (in the Basque Country it could be \u20ac180M)\nannual energy expenditure. In the productive processes of some subsectors\nindustries such as foundry, steel, paper or cement is lost between 35%\nand 50% of the waste heat. <\/p>\n\n\n\n

In turn, these same\nsubsectors group more than 50% of the industrial GVA, so it is about\nkey sectors where to work on energy efficiency. In a study conducted\nin 2010 by the EVE it was identified that the potential for energy savings in the\nBasque industry could be between 5-23% of consumption.<\/p>\n\n\n\n

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Figure 2. Potential energy savings according to source and type of industry in the Basque Country. Source: Euskadi 2030 Energy Strategy (EVE)<\/strong> <\/figcaption><\/figure>\n\n\n\n

With this objective, different energy efficiency research projects are being developed. According to the Euskadi Energy Strategy, <\/em>in recent years, more than 870 energy efficiency projects have been subsidized in industry. <\/p>\n\n\n\n

A first case\nnoteworthy in the field of use of residual heat is the project\nof R&D, BEROA-GO<\/strong><\/a>, funded by the\nElkartek program of the Basque Government. Coordinated by Tekniker and Tecnalia and that\nIts purpose is to take advantage of the residual heat emanating from the pieces\nincandescent, that is, solid bodies. Something new since the\nuse of heat from liquids and gases is more frequent. <\/p>\n\n\n\n

The project has\ndeveloped a system that allows heat to be captured and reused in other\npurposes such as electricity generation or air conditioning. Also, heat absorption\nirradiated reduces various problems that it generates in the working personnel and in\nthe machinery.<\/p>\n\n\n\n

Beyond the Basque Country, in\nThe European Union is also aware of the challenge of improving the\nenergy efficiency of the industry, therefore, in recent years there have been\ndeveloped numerous R&D projects with European funding that have the\nsame objective, to improve the energy efficiency of the industry through the\nuse of residual heat.<\/p>\n\n\n\n

This is the case of the project\nTASIO<\/strong><\/a>, financed with H2020 funds, and which has had the\nparticipation of Tecnalia together with other European research centers.<\/p>\n\n\n\n

This project has\nanalyzed real industrial plants, some of them located in Euskadi, of\nthe industrial subsectors that consume the most energy, such as cement,\nglass and steel, with the aim of identifying the sources of residual heat\nmost suitable that could be captured for the production of electricity through\nOrganic Rankine Cycles. <\/p>\n\n\n\n

Sources are the\nexhaust gases from different processes and their exploitation for the production of\nelectricity would lead to significant energy recovery, with\nnet production estimates from 560kW to 1,870kW. Analyzing the price of the\nindustrial electricity in Spain, it is estimated that the proposed investments in\nthe case study would be profitable in a period of 7.7 years. <\/p>\n\n\n\n

Another R&D project\nwith European funding is the SUSPIRE<\/strong><\/a> that goes one step further\nthere and, in addition to proposing the use of residual heat from centers\nenergy-intensive industries, plans to establish a framework to foster the\ncommercialization of surplus energy to residential areas, other\ncompanies in industrial parks or sports centers. <\/p>\n\n\n\n

this case is analyzed\na plant located in the Basque Country, with an annual consumption of electricity and gas\nof almost 35,000 MWh, which represents approximately 5,500t of CO2 and more\n\u20ac1M of expenses associated with energy. On the other hand, the losses\nidentified annual energy amounts to 6,500 MWh. It is decided to work with\nsome heat currents that account for approximately 50% of the losses\nand it is possible to recover 73% of them through different uses\nsuch as steam production, office air conditioning, reuse of\nthe plant and its distribution to nearby third parties is also proposed as a\nsports Center. <\/p>\n\n\n\n

Thanks to the systems\nof installed heat utilization and the improvement of the efficiency of the\nprocess, a reduction in annual consumption of 19.5% of energy is obtained\nprimary, being greater the reduction in the consumption of natural gas for what\nit also decreases dependence on fossil fuels. Regarding the impact\nenvironment, a reduction of almost 1000t of CO2 per year is estimated, that is, 22%\nof emissions associated with the production process. All this with periods of\namortization of the necessary investment between 7 and 14 years depending on the\ncommercialization of energy to third parties.<\/p>\n\n\n\n

In some cases the\ninitial analysis of savings potential is often one of the biggest barriers\nto develop these investments, so from another project with\nEuropean funding, Indus3Es<\/strong><\/a>, have developed a\nfree access tool for potential users to make a\nfirst evaluation of the technical and economic potential of the installation of a\nheat recovery system based on an absorption heat transformer.\n<\/p>\n\n\n\n

They are numerous, for\nTherefore, the projects and technologies available to improve efficiency\nenergy of industrial processes through heat recovery\nresidual. But there are many more decarbonization opportunities that arise as well\nin other areas and in other nodes of the industry value chain.\nOpportunities that the commitment to the circularity of the economy and the demand\nof its decarbonization force us to explore without delay and with optimism. <\/p>\n\n\n\n

MIKEL MU\u00d1OZ
Energy Specialist <\/strong><\/p>\n\n\n\n

Photo by JC Bonassin<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

The need to improve energy efficiency in the industrial sector is unquestionable. Is about a sector that approximately consumes a third of the world’s demand for energy, mostly fossil fuels. An energy source whose consumption massive and progressive exhaustion can lead to situations of increases in prices and energy insecurities. For the industrial sector to…<\/p>\n","protected":false},"author":1,"featured_media":15486,"template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"hashtag-lab":[],"naiderlab_tag":[151],"naiderlab_category":[51],"ppma_author":[198],"class_list":["post-17618","naiderlab","type-naiderlab","status-publish","has-post-thumbnail","hentry","naiderlab_tag-positive-energy-cities-and-territories","naiderlab_category-articles"],"taxonomy_info":{"naiderlab_tag":[{"value":151,"label":"Positive energy cities and territories"}],"naiderlab_category":[{"value":51,"label":"Articles"}]},"featured_image_src_large":["https:\/\/naider.com\/wp-content\/uploads\/2022\/12\/calor-industrial-2-1024x736-1.png",1024,736,false],"author_info":{"display_name":"Naider","author_link":"https:\/\/naider.com\/en\/author\/sirope-naid3r\/"},"comment_info":"","_links":{"self":[{"href":"https:\/\/naider.com\/en\/wp-json\/wp\/v2\/naiderlab\/17618","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/naider.com\/en\/wp-json\/wp\/v2\/naiderlab"}],"about":[{"href":"https:\/\/naider.com\/en\/wp-json\/wp\/v2\/types\/naiderlab"}],"author":[{"embeddable":true,"href":"https:\/\/naider.com\/en\/wp-json\/wp\/v2\/users\/1"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/naider.com\/en\/wp-json\/wp\/v2\/media\/15486"}],"wp:attachment":[{"href":"https:\/\/naider.com\/en\/wp-json\/wp\/v2\/media?parent=17618"}],"wp:term":[{"taxonomy":"hashtag-lab","embeddable":true,"href":"https:\/\/naider.com\/en\/wp-json\/wp\/v2\/hashtag-lab?post=17618"},{"taxonomy":"naiderlab_tag","embeddable":true,"href":"https:\/\/naider.com\/en\/wp-json\/wp\/v2\/naiderlab_tag?post=17618"},{"taxonomy":"naiderlab_category","embeddable":true,"href":"https:\/\/naider.com\/en\/wp-json\/wp\/v2\/naiderlab_category?post=17618"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/naider.com\/en\/wp-json\/wp\/v2\/ppma_author?post=17618"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}