EXPERIMENTATION AND ANALYSIS TO DEVELOP POLYNOMIAL DESIGN FOR CONDENSER TUBE
Keywords:
Condenser design, polynomial equation, CFD of condenser tube, 7th order polynomial application, increased performance of condenser, etcAbstract
This research presents the theoretical and experimental analysis of the cross flow condenser selected based
on Samsung compressor model no. DK172B having the displacement clearance of 0.2/0.15 containing the refrigerant as
the R-134a. The study is primarily concerned with optimum design of air-cooled condensers. The study presents a
generalized thermal design at different cooling loads for a finned-tube air-cooled condenser, which are based on7th
order polynomial mathematical equations in inner designing for heat transfer and pressure drop. The condenser design
was accomplished numerically and gives satisfactory results compared with commercial catalogue data. The numerical
results present graphical charts giving the optimum size corresponding to cooling load at minimum cost. The present
study shows the effect of ambient air temperature, condensing temperature, condensing loops and number of rows in the
condenser on the condensing unit annual cost. The optimum design is based on the main parameters, namely, condensing
temperature relative to local ambient temperature, number of rows, coil 7th order curve inner design, number of passes,
as well as cooling load. NTU methods have been selected for obtaining the theoretical data. The main concept of this
study is to apply the innovative 7th order polynomial equation curve towards the inner periphery of the condenser tubes
so as to increase characteristically performance of the condenser assembly. We have validated our results by comparing
the results of the analyses of the conventional and new condenser designs.
