Affiliation:
1. Graduate School of Engineering and Science, Shibaura Institute of Technology, Tokyo 135-8548, Japan
2. Department of Civil Engineering, Kasetsart University, Bangkok 10900, Thailand
3. College of Engineering, Shibaura Institute of Technology, Tokyo 135-8548, Japan
Abstract
This study examines the optimization of ground source heat pump (GSHP) systems and energy piles for sustainable urban development, focusing on Southeast Asia. GSHPs, which utilize geothermal energy for indoor HVAC needs, offer a sustainable alternative to traditional systems by utilizing consistent subsurface temperatures for heating and cooling. The study highlights the importance of understanding thermal movement within the soil, especially in soft marine clays prevalent in Southeast Asia, to improve GSHP system efficiency. Using a one-dimensional finite difference model, the study examines the effects of soil thermal conductivity and density on system performance. The results show that GSHP systems, especially when integrated with energy piles, significantly reduce electricity consumption and greenhouse gas emissions, underscoring their potential to mitigate the urban heat island effect in densely populated areas. Despite challenges posed by the region’s hot and humid climate, which could affect long-term effectiveness, the study highlights the need for further study, including field experiments and advanced modeling techniques, to optimize GSHP configurations and fully exploit geothermal energy in urban environments. The study’s insights into soil thermal dynamics and system design optimization contribute to advancing sustainable urban infrastructure development.
Reference40 articles.
1. General review of ground-source heat pump systems for heating and cooling of buildings;Sarbu;Energy Build.,2014
2. Eugster, W., and Sanner, B. (June, January 30). Technological status of shallow geothermal energy in Europe. Proceedings of the European Geothermal Congress, Unterhaching, Germany.
3. A numerical and field investigation of underground temperatures under Urban Heat Island;Liu;Build. Environ.,2011
4. Ratchawang, S., Chotpantarat, S., Chokchai, S., Takashima, I., Uchida, Y., and Charusiri, P. (2022). A Review of Ground Source Heat Pump Application for Space Cooling in Southeast Asia. Energies, 15.
5. A review on energy piles design, sizing and modelling;Fadejev;Energy,2017