What is it about?
Industries waste a lot of low-temperature heat that could be reused to save energy. This study focused on a system called a heat transformer, which takes low-temperature heat and upgrades it to a higher temperature that can be used again in industrial processes. We built and tested a water–lithium bromide heat transformer and also developed a mathematical model to predict its performance. The experiments showed that the system can achieve good energy efficiency, and the predictions from our model closely matched the real measurements. This means engineers can use the model to design better systems before building them, saving time and costs.
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Why is it important?
Reusing waste heat is one of the most effective ways to cut energy costs and reduce greenhouse gas emissions in industry. This work is valuable because it combines real experimental data and accurate predictions, proving that heat transformers can be both efficient and reliably modeled. Having a predictive tool helps speed up design and adoption of these systems, leading to more sustainable and energy-efficient industrial operations.
Perspectives
This study shows that heat transformers are a promising technology for turning waste heat into useful energy. Future work can explore scaling up these systems for full industrial use, testing other working fluids, and integrating them with renewable energy sources. This approach supports the transition to cleaner, more efficient industrial energy systems.
Professor Rosenberg J Romero
Universidad Autonoma del Estado de Morelos
Read the Original
This page is a summary of: Predicted and experimental COP for heat transformer based on effectiveness process, Experimental Thermal and Fluid Science, November 2017, Elsevier,
DOI: 10.1016/j.expthermflusci.2017.06.020.
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