Experimental investigation on composite adsorbent – Water pair for a solar-powered adsorption cooling system

L. Q. Zhu; C. Y. Tso; K. C. Chan; C. L. Wu; Christopher Y.H. Chao; J. Chen; W. He; S. W. Luo

doi:10.1016/j.applthermaleng.2017.12.053

Experimental investigation on composite adsorbent – Water pair for a solar-powered adsorption cooling system

L. Q. Zhu, C. Y. Tso, K. C. Chan, C. L. Wu, Christopher Y.H. Chao, J. Chen, W. He, S. W. Luo

Department of Building Environment and Energy Engineering

Research output: Journal article publication › Journal article › Academic research › peer-review

49 Citations (Scopus)

Abstract

In this study, a solar-powered adsorption cooling system (ACS) using vehicle radiators as an adsorbent bed was built and the system performance was studied experimentally in the Guangzhou climate. 6 single-glazed flat plate solar collectors with the total area of 12 m² were utilized to collect solar energy. Zeolite 13X/CaCl₂ composite adsorbent – water was used as the adsorbent – adsorbate working pair. The composite adsorbent was coated on the fins of the vehicle radiators using an electrostatic coating method. The results show that an adsorbent coating layer with a thickness of 0.5 mm was evenly distributed, and strongly adhered. The effect of the duration of the pre-heating phase and solar collector area on the cooling performance of the ACS was investigated. A pre-heating phase of 2 h was proposed and a minimum area of solar collectors of 6 m² was recommended for a 1–2 kW scale ACS. A specific cooling power (SCP) of 208.2 W/kg of the ACS and an energy efficiency ratio (EER) of 4.5 driven by solar energy were achieved with a pre-heating phase of 2 h, and a maximum solar intensity of 880 W/m².

Original language	English
Pages (from-to)	649-659
Number of pages	11
Journal	Applied Thermal Engineering
Volume	131
DOIs	https://doi.org/10.1016/j.applthermaleng.2017.12.053
Publication status	Published - 25 Feb 2018

Keywords

Composite adsorbent
Experimental investigation
Pre-heating phase
Solar-powered adsorption cooling system
Specific cooling power

ASJC Scopus subject areas

Energy Engineering and Power Technology
Industrial and Manufacturing Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.applthermaleng.2017.12.053

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title = "Experimental investigation on composite adsorbent – Water pair for a solar-powered adsorption cooling system",

abstract = "In this study, a solar-powered adsorption cooling system (ACS) using vehicle radiators as an adsorbent bed was built and the system performance was studied experimentally in the Guangzhou climate. 6 single-glazed flat plate solar collectors with the total area of 12 m2 were utilized to collect solar energy. Zeolite 13X/CaCl2 composite adsorbent – water was used as the adsorbent – adsorbate working pair. The composite adsorbent was coated on the fins of the vehicle radiators using an electrostatic coating method. The results show that an adsorbent coating layer with a thickness of 0.5 mm was evenly distributed, and strongly adhered. The effect of the duration of the pre-heating phase and solar collector area on the cooling performance of the ACS was investigated. A pre-heating phase of 2 h was proposed and a minimum area of solar collectors of 6 m2 was recommended for a 1–2 kW scale ACS. A specific cooling power (SCP) of 208.2 W/kg of the ACS and an energy efficiency ratio (EER) of 4.5 driven by solar energy were achieved with a pre-heating phase of 2 h, and a maximum solar intensity of 880 W/m2.",

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author = "Zhu, {L. Q.} and Tso, {C. Y.} and Chan, {K. C.} and Wu, {C. L.} and Chao, {Christopher Y.H.} and J. Chen and W. He and Luo, {S. W.}",

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AU - Chan, K. C.

AU - Wu, C. L.

AU - Chao, Christopher Y.H.

AU - Chen, J.

AU - He, W.

AU - Luo, S. W.

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N2 - In this study, a solar-powered adsorption cooling system (ACS) using vehicle radiators as an adsorbent bed was built and the system performance was studied experimentally in the Guangzhou climate. 6 single-glazed flat plate solar collectors with the total area of 12 m2 were utilized to collect solar energy. Zeolite 13X/CaCl2 composite adsorbent – water was used as the adsorbent – adsorbate working pair. The composite adsorbent was coated on the fins of the vehicle radiators using an electrostatic coating method. The results show that an adsorbent coating layer with a thickness of 0.5 mm was evenly distributed, and strongly adhered. The effect of the duration of the pre-heating phase and solar collector area on the cooling performance of the ACS was investigated. A pre-heating phase of 2 h was proposed and a minimum area of solar collectors of 6 m2 was recommended for a 1–2 kW scale ACS. A specific cooling power (SCP) of 208.2 W/kg of the ACS and an energy efficiency ratio (EER) of 4.5 driven by solar energy were achieved with a pre-heating phase of 2 h, and a maximum solar intensity of 880 W/m2.

AB - In this study, a solar-powered adsorption cooling system (ACS) using vehicle radiators as an adsorbent bed was built and the system performance was studied experimentally in the Guangzhou climate. 6 single-glazed flat plate solar collectors with the total area of 12 m2 were utilized to collect solar energy. Zeolite 13X/CaCl2 composite adsorbent – water was used as the adsorbent – adsorbate working pair. The composite adsorbent was coated on the fins of the vehicle radiators using an electrostatic coating method. The results show that an adsorbent coating layer with a thickness of 0.5 mm was evenly distributed, and strongly adhered. The effect of the duration of the pre-heating phase and solar collector area on the cooling performance of the ACS was investigated. A pre-heating phase of 2 h was proposed and a minimum area of solar collectors of 6 m2 was recommended for a 1–2 kW scale ACS. A specific cooling power (SCP) of 208.2 W/kg of the ACS and an energy efficiency ratio (EER) of 4.5 driven by solar energy were achieved with a pre-heating phase of 2 h, and a maximum solar intensity of 880 W/m2.

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KW - Experimental investigation

KW - Pre-heating phase

KW - Solar-powered adsorption cooling system

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Experimental investigation on composite adsorbent – Water pair for a solar-powered adsorption cooling system

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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