Integration of evaporative cooling technique with solar chimney to improve indoor thermal environment in the New Assiut City, Egypt

Amr Sayed Hassan Abdallah, Hiroshi Yoshino, Tomonobu Goto, Napoleon Enteria, Magdy M. Radwan, M. Abdelsamei Eid

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Cooling buildings in summer is one of the main environmental problems for architects and occupants in many hot dry countries. The summer temperature during these countries reaches peaks of more than 40°C in some. Mechanical air conditioners can solve the problem, but they put a heavy strain on the electricity consumption. Egypt in general has rich sunny and clear skies. Therefore, these conditions encourage to enhance evaporating with natural ventilation and save energy. This paper develops an integration of direct evaporative cooling tower with a solar chimney multi-zone thermal ventilation model. Simulation is done using commercial couple multi-zone airflow under COMIS-TRNSYS software (Madison, WI, USA) to assess natural ventilation and indoor thermal comfort. The results show that the system generates 130.5 m3/h under the effect of solar radiation only and minimum 2 ACH without pressure coefficient which is considered the minimum requirement of ACH. The findings show that the new integrated system interacts with the building envelope and weather conditions to achieve a decrease in indoor temperatures that reach 10°C to 11.5°C compared to outdoor temperatures.

Original languageEnglish
Article number45
Pages (from-to)1-15
Number of pages15
JournalInternational Journal of Energy and Environmental Engineering
Volume4
Issue number1
DOIs
Publication statusPublished - 2013

Keywords

  • Integration system
  • Multi-zone models
  • Passive cooling
  • Solar chimney
  • TRNSYS-COMIS

ASJC Scopus subject areas

  • Environmental Engineering
  • Energy(all)

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