Air conditioning of an off-grid remote school with an earth to air heat exchanger coupled indirectly to a solar cooling system

Air conditioning of an off-grid remote school with an earth to air heat exchanger coupled indirectly to a solar cooling system | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Air conditioning of an off-grid remote school with an earth to air heat exchanger coupled indirectly to a solar cooling system Juan Ríos, Nicolás Velázquez, J.A. Aguilar-Jiménez, J.A. Corona, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3953335/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 02 Oct, 2024 Read the published version in International Journal of Environmental Research → Version 1 posted 5 You are reading this latest preprint version Abstract This work presents the results of indirectly coupling an Earth to Air Heat Exchanger to a 35 kW absorption cooling system. The study considers the weather, building, and soil conditions of a school located in the off-grid remote community of Puertecitos, Baja California, Mexico. TRNSYS simulation software was used to analyze the thermal behavior of the Earth to Air Heat Exchanger under different operation modes, in order to reduce the thermal load of the classrooms. The results show that during the months of May and June an Earth to Air Heat Exchanger with a diameter of 0.15 m, operating from Mondays to Fridays with and mass flow of 715 kg/h, is capable to reduce the thermal load of each classroom by 268.4 kWh t , equivalent to 25% of the energy to be removed for maintaining the classrooms at 25°C, which is reflected in a reduction of 12.89% and 18.25% of the electrical energy and water consumption, respectively. For the period from August to October, the thermal load was reduced by 225.2 kWh t , equivalent to 15.4% of the energy to be removed for maintaining the classrooms temperature at 25°C, causing an increase of 1.33% in electrical energy consumption, but reducing the consumption of auxiliary heat and water by 94.82% and 11.07%, respectively. The annual savings in auxiliary heat, electrical energy and water are 513.52 kWh t , 136.05 kWh e and 6,084.03 kg, which represent 94.82%, 4.61% and 14.3% of the annual consumption of these resources. earth to air heat exchanger solar cooling air conditioning off-grid remote Full Text Supplementary Files Highlights.docx Cite Share Download PDF Status: Published Journal Publication published 02 Oct, 2024 Read the published version in International Journal of Environmental Research → Version 1 posted Editorial decision: Major revisions 15 May, 2024 Reviewers agreed at journal 06 Mar, 2024 Reviewers invited by journal 06 Mar, 2024 Editor assigned by journal 16 Feb, 2024 First submitted to journal 15 Feb, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-3953335","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":276701950,"identity":"6ddc6e23-d549-42c8-953a-91427b58e8e6","order_by":0,"name":"Juan Ríos","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAz0lEQVRIiWNgGAWjYDACZiCWqLABEiAeG9FazqSRogUEGNsOk6DFvJ358AfLtvOJ/bObHzB8KDvMoDsjAb8WmcNsaRIS524nzrhzzIBxxrnDDGZnDuDXIsHMY8YgUXY7seFGDgMzL9CFZscbCGox/iDBdi5xPkjLX5CWwwT8AtRiICHRdiBxA0gLI3G2gPxyJtl4I9AvB3vOpfMQ9gv/4cOfJSrsZOfdbn744EeZtZzZjQQCLgMCZgkoA2Q8D2H1QMD4gShlo2AUjIJRMGIBAMSwQoQ7vcO0AAAAAElFTkSuQmCC","orcid":"https://orcid.org/0000-0003-3067-0075","institution":"Universidad Autonoma de Baja California Instituto de Ingenieria","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Juan","middleName":"","lastName":"Ríos","suffix":""},{"id":276701951,"identity":"ebdc2273-18ef-44f3-a52d-67947e29e21a","order_by":1,"name":"Nicolás Velázquez","email":"","orcid":"https://orcid.org/0000-0002-1509-8851","institution":"Universidad Autonoma de Baja California Instituto de Ingenieria","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Nicolás","middleName":"","lastName":"Velázquez","suffix":""},{"id":276701952,"identity":"c352390d-23fa-49a8-852e-b6a892692135","order_by":2,"name":"J.A. 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