FEASIBILITY STUDY OF USING SOLAR LIQUID DESICCANT AIR CONDITIONER IN IRAN

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alizadeh shahab; ABBASPOURSANI K.; HAGHGOU H.R.

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Seminar Paper

Paper Information

Seminar: HEATING, VENTILATING AND AIR CONDITIONING
Year:2009 | Issue:1

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Title

FEASIBILITY STUDY OF USING SOLAR LIQUID DESICCANT AIR CONDITIONER IN IRAN

Author(s)

alizadeh shahab | ABBASPOURSANI K. | HAGHGOU H.R. | Issue Writer Certificate

Keywords

LIQUID DESICCANT

DEHUMIDIFICATION

PLATE HEAT EXCHANGER

SOLAR REGENERATION

Abstract

IN A LIQUID DESICCANT AIR CONDITIONER DEVELOPED AT MATERIALS & ENERGY RESEARCH CENTRE (MERC), DEHUMIDIFICATION OF THE OUTSIDE AIR IS ACHIEVED THROUGH A PACKED-BED HEAT AND MASS EXCHANGER, USING LITHIUM CHLORIDE SOLUTION AS THE DESICCANT.THE DRY AIR THUS OBTAINED IS EVAPORATIVE COOLED IN A COOLING PAD AND DIRECTED INTO THE CONDITIONED SPACE. THE DILUTE SOLUTION FROM THE DEHUMIDIFICATION PROCESS IS CONCENTRATED IN A SCAVENGER AIR REGENERATOR USING HOT WATER FROM FLAT PLATE SOLAR COLLECTORS. CARRYOVER OF THE DESICCANT PARTICLES HAS BEEN AVOIDED BY USING ELIMINATORS, SUCH AS DEMISTER OR FILTER. IN THIS PAPER THE EXPERIMENTAL RESULTS OBTAINED FROM TESTING THE PROTOTYPE OF THE LIQUID DESICCANT ABSORBER UNIT IN A SIMULATED PERSIAN GULF SUMMER HAS BEEN PRESENTED AND COMPARED WITH A PREVIOUSLY DEVELOPED MODEL FOR THE PACKED-BED. THE COMPARISON REVEALS THAT GOOD AGREEMENT EXISTS BETWEEN THE EXPERIMENTS AND MODEL PREDICTIONS. THE INACCURACIES ARE WELL WITHIN THE MEASURING ERRORS OF THE TEMPERATURE, HUMIDITY AND THE AIR AND SOLUTION FLOW RATES. THE ABOVE TESTS FURTHER REVEAL THAT THE UNIT WOULD HAVE A SATISFACTORY PERFORMANCE IN CONTROLLING THE AIR TEMPERATURE AND HUMIDITY IF INSTALLED ON A COMMERCIAL SITE OF ABOUT 200 M2 AREA IN A HOT AND HUMID CLIMATE. A COMMERCIALIZATION STUDY WAS PERFORMEDFOR THE SOLAR OPERATED LIQUID DESICCANT AIR CONDITIONER (LDAC) AND COMPARED WITH THE CONVENTIONAL VAPOUR COMPRESSION SYSTEM. THE STUDY REVEALS THAT THE OPERATING COST OF AN LDAC IS SIGNIFICANTLY LOWER THAN ITS CONVENTIONAL COUNTERPART. THE COSTS WOULD FURTHER REDUCE IF A STORAGE SYSTEM WAS USED TO STORE THE CONCENTRATED SOLUTION OF LIQUID DESICCANT. A SIMPLE PAYBACK OF FIVE YEARS WAS DETERMINED FOR THE SOLAR COMPONENTS OF THE LIQUID DESICCANT SYSTEM IN THIS STUDY.

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APA: Copy

alizadeh, shahab, ABBASPOURSANI, K., & HAGHGOU, H.R.. (2009). FEASIBILITY STUDY OF USING SOLAR LIQUID DESICCANT AIR CONDITIONER IN IRAN. Heating, Ventilating and Air Conditioning. SID. https://sid.ir/paper/905135/en

Vancouver: Copy

alizadeh shahab, ABBASPOURSANI K., HAGHGOU H.R.. FEASIBILITY STUDY OF USING SOLAR LIQUID DESICCANT AIR CONDITIONER IN IRAN. 2009. Available from: https://sid.ir/paper/905135/en

IEEE: Copy

shahab alizadeh, K. ABBASPOURSANI, and H.R. HAGHGOU, “FEASIBILITY STUDY OF USING SOLAR LIQUID DESICCANT AIR CONDITIONER IN IRAN,” presented at the Heating, Ventilating and Air Conditioning. 2009, [Online]. Available: https://sid.ir/paper/905135/en

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