{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,17]],"date-time":"2026-01-17T19:57:54Z","timestamp":1768679874603,"version":"3.49.0"},"reference-count":21,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2025,3,27]],"date-time":"2025-03-27T00:00:00Z","timestamp":1743033600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia (FCT, Portugal)","award":["PD\/BD\/137884\/2018"],"award-info":[{"award-number":["PD\/BD\/137884\/2018"]}]},{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia (FCT, Portugal)","award":["COVID\/BD\/152637\/2022"],"award-info":[{"award-number":["COVID\/BD\/152637\/2022"]}]},{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia (FCT, Portugal)","award":["UIDB\/00532\/2020"],"award-info":[{"award-number":["UIDB\/00532\/2020"]}]},{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia (FCT, Portugal)","award":["LA\/P\/0045\/2020"],"award-info":[{"award-number":["LA\/P\/0045\/2020"]}]},{"name":"Transport Phenomena Research Center (CEFT)","award":["PD\/BD\/137884\/2018"],"award-info":[{"award-number":["PD\/BD\/137884\/2018"]}]},{"name":"Transport Phenomena Research Center (CEFT)","award":["COVID\/BD\/152637\/2022"],"award-info":[{"award-number":["COVID\/BD\/152637\/2022"]}]},{"name":"Transport Phenomena Research Center (CEFT)","award":["UIDB\/00532\/2020"],"award-info":[{"award-number":["UIDB\/00532\/2020"]}]},{"name":"Transport Phenomena Research Center (CEFT)","award":["LA\/P\/0045\/2020"],"award-info":[{"award-number":["LA\/P\/0045\/2020"]}]},{"name":"Associate Laboratory in Chemical Engineering (ALiCE)","award":["PD\/BD\/137884\/2018"],"award-info":[{"award-number":["PD\/BD\/137884\/2018"]}]},{"name":"Associate Laboratory in Chemical Engineering (ALiCE)","award":["COVID\/BD\/152637\/2022"],"award-info":[{"award-number":["COVID\/BD\/152637\/2022"]}]},{"name":"Associate Laboratory in Chemical Engineering (ALiCE)","award":["UIDB\/00532\/2020"],"award-info":[{"award-number":["UIDB\/00532\/2020"]}]},{"name":"Associate Laboratory in Chemical Engineering (ALiCE)","award":["LA\/P\/0045\/2020"],"award-info":[{"award-number":["LA\/P\/0045\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Processes"],"abstract":"<jats:p>This study focuses on the theoretical performance of a single-stage absorption heat transformer (SSAHT) using the working pair H2O\/LiBr for low-temperature waste heat recovery. A thermodynamic model was implemented in Engineering Equation Software (EES) considering a waste heat temperature of 60 \u00b0C in a small-scale SSAHT. A sensitivity analysis was performed where important system parameters were varied, including the inlet temperatures, mass flow rates, and solution heat exchanger effectiveness. Their impact on different AHT performance parameters (COP, ECOP, GTL, and FR) was evaluated, and these results provided practical guidelines that were utilized to optimize the SSAHT operating conditions.<\/jats:p>","DOI":"10.3390\/pr13041001","type":"journal-article","created":{"date-parts":[[2025,3,27]],"date-time":"2025-03-27T12:41:02Z","timestamp":1743079262000},"page":"1001","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Thermodynamic Simulations of a Single-Stage Absorption Heat Transformer Utilizing Low-Temperature Waste Heat (60 \u00b0C)"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7063-0302","authenticated-orcid":false,"given":"Marta","family":"Santos","sequence":"first","affiliation":[{"name":"CEFT\/ALICE - Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0290-8018","authenticated-orcid":false,"given":"Carlos","family":"Pinho","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering - Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8113-7142","authenticated-orcid":false,"given":"Jo\u00e3o B. 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Absorption Chillers and Heat Pumps, CRC Press. [2nd ed.].","DOI":"10.1201\/b19625"},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"L\u00f3pez-P\u00e9rez, L.A., Torres-D\u00edaz, T., P\u00e9rez Grajales, S.G., Flores Prieto, J.J., Ju\u00e1rez Romero, D., Hern\u00e1ndez P\u00e9rez, J.A., and Huicochea, A. (2024). Solar Water Heating System with Absorption Heat Transformer for Annual Continuous Water Heating. Processes, 12.","DOI":"10.3390\/pr12081650"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"321","DOI":"10.1016\/S0927-0248(01)00074-5","article-title":"Single-stage and advanced absorption heat transformers operating with lithium bromide mixtures used to increase solar pond\u2019s temperature","volume":"70","author":"Rivera","year":"2001","journal-title":"Sol. Energy Mater. Sol. 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