Optimizing Air Ventilation Cooling With Earth-Water Heat Exchangers in Residential Buildings

Remon Lapisa, Jasman Jasman, Andre Kurniawan, Krismadinata Krismadinata, Anna Niska Fauza Fauza, Arwizet Arwizet, Dori Yuvenda, Waskito Waskito, Nandy Putra, Hairul Abral, Zaid Romani

Research output: Contribution to journalArticlepeer-review

Abstract

This study investigated the cooling effect of an Earth Water-Air Heat Exchanger (EWAHE) device for ventilation applications. To address the lack of data on EWAHE performance in moderate climates, we measured temperature parameters (inlet-outlet, indoor-outdoor, water, and soil) continuously for three days. Air temperatures, air flowrate, light intensity are measured using a multi-channel data logger with several sensors. Results showed that the EWAHE effectively reduced indoor air temperature by an average of 7.5°C with a maximum reduction of 9.3°C, offering a promising passive cooling solution for buildings. The primary limitation of this study is that it requires open space around the building to place the device, so this method is inappropriate for building in a dense urban area. Future studies could investigate the association between ground-water cooling effect and natural ventilation without using energy for air circulation.

Original languageEnglish
Pages (from-to)484-492
Number of pages9
JournalTEM Journal
Volume13
Issue number1
DOIs
Publication statusPublished - 2024

Keywords

  • cooling effect
  • Heat exchanger
  • passive cooling
  • tropical region
  • ventilation

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