Thermal and Energy Performance Assessment of Evacuated Tube Collectors: Case Study at Rancho Luna Hotel

Solar 2026 Open access

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Authors: Leonel Díaz-Tato, Luis Angel Iturralde Carrera, Carlos D. Constantino-Robles, Fernando Banda-Munoz, José Manuel Álvarez-Alvarado, Marcos Avilés, Juvenal Rodríguez-Reséndiz
DOI: 10.3390/solar6010010
Cited by: 1
References: 47

Abstract

This study aimed to evaluate the thermal performance and operational behavior of an evacuated-tube solar collector field installed in a coastal hotel under real industrial conditions. The work analyzed temperature, irradiance, and mass-flow data to determine instantaneous efficiency and identify performance deterioration associated with fouling. A multivariable regression model was developed to predict collector efficiency as a function of operating parameters. The results showed an average efficiency of 40–55%, with a noticeable decrease attributed to soiling effects. The methodology and findings contribute to improving monitoring-based maintenance strategies and optimizing the energy performance of large-scale domestic hot-water systems.

Fields of Study & Subjects

Solar Thermal and Photovoltaic Systems Solar-Powered Water Purification Methods Solar Energy Systems and Technologies

Publication details

Journal / source
Solar
Publisher
MDPI AG
Volume
6
Issue
1
Pages
10–10
Publication date
5 February 2026
Language
EN