Experimental study on continuous running performance and energy consumption analysis of portable air-conditioner with variable condensate supply methods

Dae Hyeok Kim, Jae Won Lee, Yong Tae Kang

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, the continuous operation and efficiency variation of a portable air conditioner under high-humidity conditions were experimentally studied by changing the condenser path and condensate supply method. By applying countercurrent path, drain hole, and optimized splash fan position and structure, the coefficient of performance (COP) could be enhanced by approximately 8.1% without increasing the cost. However, the increase in condensate made continuous operation impossible under high humidity conditions of 90% or more as it was optimized for operation at a relative humidity of 50% based on the general capacity measurement conditions in the market. To increase the operating time under a 90% relative humidity condition, cycle temperature and surface abnormalities were evaluated. The cycle temperature of the condenser increased before the end of the continuous operation. The condensate did not evaporate from the surface of the condenser at a sufficient rate and the blocked area increased. Finally, the continuous operation time can be extended by changing the cycle by using an electronic expansion valve.

Original languageEnglish
Article number128335
JournalEnergy
Volume281
DOIs
Publication statusPublished - 2023 Oct 15

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea ( NRF ) grant funded by the Korea government ( MSIT ) (No. 2020R1A5A1018153 ).

Publisher Copyright:
© 2023 Elsevier Ltd

Keywords

  • Condensate supply methods
  • Continuous operation time
  • Evaporative condenser
  • Portable air conditioner
  • Splash fan

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Modelling and Simulation
  • Renewable Energy, Sustainability and the Environment
  • Building and Construction
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Pollution
  • Mechanical Engineering
  • General Energy
  • Management, Monitoring, Policy and Law
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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