Economic and greenhouse gas assessments for two hot water industrial systems: Solar vs. natural gas

Cleaner Engineering and Technology

Monica Carvalho¹  Rafaela Ramos Barbosa²  Lígia da Costa Garcia²  Dener Delmiro Martins²  Herwin Saito Schultz³ 

[1]Department of Renewable Energy Engineering, Federal University of Paraiba, João Pessoa, Brazil

[2]Graduate Program in Mechanical Engineering, Federal University of Paraiba, João Pessoa, Brazil

[3]Graduate Program in Renewable Energy, Federal University of Paraiba, João Pessoa, Brazil

关键词: Solar energy;    Heat;    Industry;    Textile;    Renewable energy;    SDG 12;   

DOI  :  

来源: DOAJ

【 摘 要 】

Recognizing the energy-intensive character of the industrial sector, especially for process heat, this study designs two hot water systems for a textile industry located in Northeast Brazil. Then both systems are compared from financial and environmental viewpoints. The economic analysis uses the Payback period, Internal Rate of Return, and Net Present Value. The environmental analysis uses the Life Cycle Assessment methodology to quantify the greenhouse gas emissions associated with building and operating both systems. The economic analysis confirms that the solar water heating system is viable, with a profitability rate of 29.46, which makes it an attractive investment. The accountancy of greenhouse gases confirmed the potential of the solar system to mitigate climate change, with overall annual emissions 50 times lower than the natural gas system. The results obtained are highly related to sustainable development and cleaner production, and can be employed by decision makers aiming to change consumption and production patterns towards a more sustainable future.

【 授权许可】

Unknown