Original scientific paper
https://doi.org/10.13044/j.sdewes.d13.0547
Analysis of Serpentine Collector Performance Based on Flow Rate Variation for Improving Efficiency and Environmental Impact of Solar Water Heater
Nugroho Agung Pambudi
; Universitas Sebelas Maret, Surakarta, Indonesia
Yustisia Ahnaf
; Universitas Sebelas Maret, Surakarta, Indonesia
Iksan Riva Nanda
; Universitas Indonesia, Depok, Indonesia
Muhammad Aziz
; The University of Tokyo, Tokyo, Japan
Desita Kamila Ulfa
; Universitas Sebelas Maret, Surakarta, Indonesia
Hening Asti Rahayu
; Energy and Society Laboratory, Department of Mechanical Engineering Education, Universitas Sebelas Maret, Surakarta, Indonesia
Abstract
Environmentally friendly technology provides sustainable solutions to reduce non-renewable energy use and carbon emissions. This study investigates efficiency, optimal flow rate, and environmental impact of solar water heater with serpentine configuration. Data were collected during summer in Solo, Indonesia. Inlet and outlet water temperatures, wind speed, and solar radiation intensity were measured from 9:00 AM to 3:00 PM (Western Indonesian Time) at flow rates of 60, 120, 180, and 240 L/h. The optimal flow rate was 180 L/h, thermal efficiency of 57.02%, heat absorption efficiency of 81.93%, and collector efficiency of 69.60%. High flow rates caused too short contact time, while low flow rates increased heat loss. Life cycle assessment showed usage phase dominated energy consumption and significantly reduced carbon dioxide emissions, whereas materials and manufacturing impacted costs and emissions. The serpentine solar water heater offers highly sustainable, efficient, and eco-friendly heating solution by optimizing energy efficiency and production process.
Keywords
Solar water heater; Serpentine collector; Improving efficiency; Life-cycle assessment
Hrčak ID:
329143
URI
Publication date:
15.3.2025.
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