کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
789631 1466449 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental evaluation and performance enhancement prediction of desiccant assisted separate sensible and latent cooling air-conditioning system
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Experimental evaluation and performance enhancement prediction of desiccant assisted separate sensible and latent cooling air-conditioning system
چکیده انگلیسی

CO2 and R410A desiccant wheel (DW)-assisted separate sensible and latent cooling (SSLC) air-conditioning systems were tested under the AHRI standard. At a 50 °C regeneration temperature, the coefficient of performance (COP) of the vapor compression cycles improved only 7% from the respective baseline systems for both refrigerants. This paper proposed the idea of applying divided condensers (or gas coolers) to the R410A (or CO2) SSLC system to enhance its performance. It was found that the application of divided heat exchangers to the SSLC system provided sufficiently hot airflow for regenerating the desiccant wheel at both a reduced high side pressure (from 10.4 MPa to 9.7 MPa for CO2, from 3.46 MPa to 3.45 MPa for R410A) and a reduced discharge temperature from the condenser (gas cooler) (4 K lower for both refrigerants). The COP improvement is 36% and 61% to R410A and CO2 baseline systems, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refrigeration - Volume 34, Issue 4, June 2011, Pages 946–957
نویسندگان
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