Simulation and optimization of a LiBr solar absorption cooling system with evacuated tube collectors

F. Assilzadeh, S. A. Kalogirou, Y. Ali, Kamaruzzaman Sopian

Research output: Contribution to journalArticle

202 Citations (Scopus)

Abstract

Solar radiation is a clean form of energy, which is required for almost all natural processes on earth. Solar-powered air-conditioning has many advantages when compared to a conventional electrical system. This paper presents a solar cooling system that has been designed for Malaysia and similar tropical regions using evacuated tube solar collectors and LiBr absorption unit. The modeling and simulation of the absorption solar cooling system is carried out with TRNSYS program. The typical meteorological year file containing the weather parameters for Malaysia is used to simulate the system. The results presented show that the system is in phase with the weather, i.e. the cooling demand is large during periods that the solar radiation is high. In order to achieve continuous operation and increase the reliability of the system, a 0.8 m3 hot water storage tank is essential. The optimum system for Malaysia's climate for a 3.5 kW (1 refrigeration ton) system consists of 35 m2 evacuated tubes solar collector sloped at 20°.

Original languageEnglish
Pages (from-to)1141-1159
Number of pages19
JournalRenewable Energy
Volume30
Issue number8
DOIs
Publication statusPublished - Jul 2005

Fingerprint

Absorption cooling
Solar collectors
Solar radiation
Cooling systems
Refrigeration
Air conditioning
Earth (planet)
Cooling
Water

Keywords

  • Air-conditioning
  • Solar energy
  • TRNSYS

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Civil and Structural Engineering

Cite this

Simulation and optimization of a LiBr solar absorption cooling system with evacuated tube collectors. / Assilzadeh, F.; Kalogirou, S. A.; Ali, Y.; Sopian, Kamaruzzaman.

In: Renewable Energy, Vol. 30, No. 8, 07.2005, p. 1141-1159.

Research output: Contribution to journalArticle

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