Evaluation and enhancement of the hot water system in university housing

an intervention example

Authors

DOI:

https://doi.org/10.18830/1679-09442024v17e53526

Keywords:

Water Consumption, Solar water heating, Student Housing, Monitoring, Rational Use

Abstract

The use of solar water heating systems can bring savings, reducing environmental impacts compared to conventional energy sources. The main objective of the study was to identify pathologies in the hot water plumbing system of the Cerrado University Housing (MUC) in Catalão-GO, and correct them through interventions, evaluating efficiency before and after. For fourteen months, data on cold water, hot water, and energy consumption of the apartments and the number of residents in the building were collected. During the intervention, CPVC piping was replaced with PEX tubes, changes were made to the connections of the solar panels, a hydraulic pump and valves were introduced to improve recirculation, and the electric resistance was replaced. After the modifications, there was a trend of reduction in total hot water consumption and the consumption index (CI). The average shower heating time was reduced from 2 minutes to 20 seconds. Additionally, the average hot water consumption per resident decreased by 23.47%. Energy consumption, which had a trend of increase, stabilized after the modifications, indicating an improvement in the energy efficiency of the building. Thus, the interventions contributed to increasing the efficiency of the facilities.

Downloads

Download data is not yet available.

Author Biographies

Rodrigo Emanuel Rodrigues da Silva, Universidade Federal de Catalão, Faculdade de Engenharia, Programa de Pós Graduação em Engenharia Civil.

Graduated in Civil Engineering from the Federal University of Goiás (2017) and in Sanitary and Environmental Engineering from the Federal University of Bahia (2013). Specialist in Reinforced Concrete Structural Engineering (2022) from Faculdade Única de Ipatinga, FUNIP. Master's student in Structures and Civil Construction at PPGEC-UFCAT. He is currently a Civil Engineer and coordinator of physical space management at the Federal University of Catalão. Member of the Works, Infrastructure and Maintenance Working Group of the National Forum of Pro-Rectors of Planning and Administration of Federal Higher Education Institutions (Forplad). He has experience in Civil Engineering, with an emphasis on civil construction and structures.

Heber Martins de Paula, Universidade Federal de Catalão, Faculdade de Engenharia, Programa de Pós Graduação em Engenharia Civil.

He holds a degree in Civil Engineering from the Federal University of Goiás (2003), a master's degree in Civil Engineering Structures from the Federal University of Goiás (2005) and a PhD in Civil Engineering from the State University of Campinas (2014). He is an adjunct professor of the Civil Engineering course and the Postgraduate Program in Civil Engineering (Management, Technology and Sustainability in Civil Construction) at the Federal University of Goiás, Catalão Regional, Federal University of Catalão under implementation. He has experience in the area of ​​civil construction, development of new materials and building hydrosanitary installations, acting as a designer and teacher of Hydrosanitary Building Systems, Sustainable Construction and Construction Monitoring. He was the winner of the 20th Edition of the CBIC Award (formerly Falcão Bauher Award) for Innovation and Sustainability, Research category. Research Coordinator at UFG/Catalão Regional (2015 and 2016), Coordinator of Administration and Finance at UFG/RC (2018-2019) and, currently, Pro-Tempore Pro-Rector of Administration and Finance at the Federal University of Catalão (UFCAT).

Yan de Pádua Castro Metsavaht, Universidade Federal de Catalão, Programa de Pós-Graduação em Engenharia Civil.

Graduado em Engenharia Civil pela Universidade Federal de Catalão (2022), tendo contribuído durante o período no desenvolvimento de eventos, monitorias e projetos de pesquisa. Mestrando em Estruturas e Construção Civil pelo PPGEC-UFCAT. Foi estagiário na Secretaria de Obras da Prefeitura Municipal de Catalão, auxiliando no desenvolvimento de processos licitatórios e acompanhamento e controle de qualidade de obras. No setor privado, já atuou como gestor de projetos e execução de uma construtora e atualmente trabalha na área de planejamento, projetos e execução de obras de maneira autônoma, tendo experiência também com documentações e regularizações.

References

ASSOCIAÇÃO BRASILEIRA DE ENGENHARIA SANITÁRIA E AMBIENTAL – ABES. Panorama da Água no Brasil. Disponível em: http://abes-dn.org.br/wp-content/uploads/2018/04/Panorama-da-Agua-noBrasil-ABES.pdf. Acesso em: 22 de abril de 2023.

ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS ABNT NBR 5626: Sistemas prediais de água fria e água quente - Projeto, execução, operação e manutenção. Rio de Janeiro. 2020.

ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. NBR 15569: Sistema de aquecimento solar de água em circuito direto — Requisitos de projeto e instalação. Rio de Janeiro: ABNT, 2020.

ALTOÉ, L.; OLIVEIRA FILHO, D.; CARLO, J. C. Análise energética de sistemas solares térmicos para diferentes demandas de água em uma residência unifamiliar. Ambiente Construído, [S. l.], v. 12, n. 3, p. 75–87, 2012.

Carretero-Ayuso, M. J.; Moreno-Cansado, A.; García-Sanz-Calcedo, J. Occurrence of faults in water installations of residential buildings: an analysis based on user complaints. J. Build. Eng., v. 27, 2020.

COMGAS. Sistema de Aquecimento de Água para Edifícios através da associação Energia Solar e Gás Natural – Manual Técnico para Projeto e Construção de Sistemas de Aquecimento Solar & Gás Natural, 2011. Disponível em: <https://labeee.ufsc.br/pt-br/downloads>. Acesso em Dezembro 2023.

ELETROBRAS - Centrais Elétricas Brasileiras S.A. Pesquisa de Posse de Equipamentos e Hábitos de Uso: ano-base 2019, classe residencial. Relatório Brasil. Rio de Janeiro: ELETROBRAS/PROCEL, 2019.

OLIVEIRA, L. H. Metodologia para implantação de programa de uso racional da água em edifícios. Tese (Doutorado em Engenharia da Construção Civil) – Escola Politécnica da Universidade de São Paulo, São Paulo, 1999.

PROCOBRE. Qualidade em Instalações de Aquecimento Solar, São Paulo, Dezembro 2009. Disponível em: <https://labeee.ufsc.br/pt-br/downloads/manuais>. Acesso em: 22 de Janeiro 2024.

Singh, S., Anand, A., Shukla, A., & Sharma, A. K. Environmental, technical and financial feasibility study of domestic solar water heating system in India. Sustainable Energy Technologies and Assessments, 43, 2021.

T Zhang, Q Z Zhu, W He, G Pei, J Ji, Annual performance comparison between solar water heating system and solar photovoltaic/thermal system—a case study in Shanghai city, International Journal of Low-Carbon Technologies, Volume 12, Issue 4, 2017.

YAMADA, Marco Antonio Furtado; OLIVEIRA, Lúcia Helena de. Comissionamento de sistemas prediais de água quente –Requisitos de projeto do proprietário. In: ENCONTRO NACIONAL DE TECNOLOGIA DO AMBIENTE CONSTRUÍDO, 18., 2020, Porto Alegre. Anais... Porto Alegre: ANTAC, 2020.

Published

2024-09-09

How to Cite

Emanuel Rodrigues da Silva, R., Martins de Paula, H., & de Pádua Castro Metsavaht, Y. (2024). Evaluation and enhancement of the hot water system in university housing: an intervention example. Paranoá, 17, e53526. https://doi.org/10.18830/1679-09442024v17e53526

Issue

Section

Sistemas Prediais

Most read articles by the same author(s)

Similar Articles

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 > >> 

You may also start an advanced similarity search for this article.