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The Nusselt number, overall heat transfer, and convective heat transfer coefficients of glycerol-water-based Cu nanofluids flowing in a parallel flow double pipe heat exchanger are estimated using CFD analysis. Single-phase fluid approach technique is used in the analysis. Ansys 19.0 workbench was used to create the heat exchanger model. Heat transfer tests with nanofluids at three flow rates (680<Re<1900) are carried out in a laminar developing flow zone. For testing, a 500 mm long concentric double pipe heat exchanger with tube dimensions of ID=10.2 mm, OD= 12.7 mm, and annulus dimensions of ID=17.0 mm, OD= 19.5 mm is employed. Copper is utilized for the tube and annulus material. This study employed three-particle volume concentrations of 0.2 percent, 0.6 percent, and 1.0 percent. The mass flow rates of hot water in the tube are 0.2, 0.017, and 0.0085 kg/s, while the mass flow rates of nanofluids in the annulus are 0.03, 0.0255, and 0.017 kg/s. The average temperature of nanofluids is 36°C, whereas hot water is 58°C. In comparison to base liquid, the overall heat transfer coefficient and convective HTC of 1.0 percent copper nanofluids at 0.03 kg/s are raised by 26.2 and 46.2 percent, respectively. The experimental findings are compared to CFD values, and they are in close agreement.
", "languages": [ { "id": "eng", "title": { "en": "English" } } ], "publication_date": "2021-11-30", "publisher": "Zenodo", "related_identifiers": [ { "identifier": "2277-3878", "relation_type": { "id": "iscitedby", "title": { "de": "Wird zitiert von", "en": "Is cited by" } }, "resource_type": { "id": "publication-article", "title": { "de": "Zeitschriftenartikel", "en": "Journal article" } }, "scheme": "issn" } ], "resource_type": { "id": "publication-article", "title": { "de": "Zeitschriftenartikel", "en": "Journal article" } }, "rights": [ { "description": { "en": "The Creative Commons Attribution license allows re-distribution and re-use of a licensed work on the condition that the creator is appropriately credited." }, "icon": "cc-by-icon", "id": "cc-by-4.0", "props": { "scheme": "spdx", "url": "https://creativecommons.org/licenses/by/4.0/legalcode" }, "title": { "en": "Creative Commons Attribution 4.0 International" } } ], "subjects": [ { "subject": "Glycerol-water mixture, CFD analysis, double pipe heat exchanger, convective heat transfer, overall heat transfer, Cu nanofluids." } ], "title": "Experimental and CFD Analysis of GW70 based Cu Nanofluids in a Parallel Flow Heat Exchanger" }, "parent": { "access": { "owned_by": { "user": 251629 } }, "communities": {}, "id": "5625404", "pids": {} }, "pids": { "doi": { "identifier": "10.35940/ijrte.D6587.1110421", "provider": "external" }, "oai": { "identifier": "oai:zenodo.org:5625405", "provider": "oai" } }, "revision_id": 2, "stats": { "all_versions": { "data_volume": 14497448.0, "downloads": 28, "unique_downloads": 28, "unique_views": 55, "views": 55 }, "this_version": { "data_volume": 14497448.0, "downloads": 28, "unique_downloads": 28, "unique_views": 55, "views": 55 } }, "status": "published", "updated": "2021-11-05T13:48:32.096069+00:00", "versions": { "index": 1, "is_latest": true } }