Analysis of the system response of a spray passive downdraft evaporative cooling system

Research output: Contribution to journalArticle

Abstract

A spray Passive Downdraft Evaporative Cooling (PDEC)system achieves great savings for space cooling and improves indoor environmental quality by supplying a large amount of fresh outdoor air. As previous studies heavily focused on the energy saving capability of a spray PDEC system due to lack of methods for a detailed analysis, the influence of cool humid supply air from a spray PDEC system in a space in buildings has not been comprehensively studied. This study is intended to evaluate the competence of a spray PDEC system as a primary cooling system in typical spaces in a primary school building by developing a method using building energy simulation tool. It runs one-day simulations in a hot dry climate and a warm moderate climate in order to distinctly examine the benefits and the areas that should be advanced. It analyses how a spray PDEC system responds to the space cooling loads and spaces conditioned by the system thermally behave. The results of the simulations affirm that a spray PDEC system is capable of conditioning building spaces in the two climates, indicating some areas to be improved.

Original languageEnglish (US)
Pages (from-to)101-111
Number of pages11
JournalBuilding and Environment
Volume157
DOIs
StatePublished - Jun 15 2019

Fingerprint

Evaporative cooling systems
spray
cooling
climate
School buildings
simulation
Cooling
building
air
Air
Cooling systems
analysis
energy saving
Energy conservation
environmental quality
conditioning
savings
primary school
supply
energy

Keywords

  • Airflow
  • Cooling load
  • Evaporative cooling
  • Simulation
  • Spray
  • Thermal comfort

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Geography, Planning and Development
  • Building and Construction

Cite this

Analysis of the system response of a spray passive downdraft evaporative cooling system. / Kang, Daeho; Strand, Richard Karl.

In: Building and Environment, Vol. 157, 15.06.2019, p. 101-111.

Research output: Contribution to journalArticle

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