Comprehensive methodology for finned air-cooled condensers and spray cooling
Abstract
This study consists of two discrete topics important to the design of two-phase cooling systems, fin-and-tube condensers and spray cooling modules. The first part describes a comprehensive method for predicting pressure drop and thermal performance of three different types of fin-and-tube condensers. Detailed airside heat transfer coefficient condensation side, a series of correlations for the laminar/turbulent single-phase cooling regions and two-phase condensation region are presented. Finally, a step-by-step method to predict the pressure drop and heat transfer characteristics of the condenser is presented. The second part describes the design of spray cooling modules. A detailed design methodology for spray cooling is represented. The key goal of this methodology is to minimize surface temperature while maintaining surface heat flux safely below critical heat flux (CHF). Presented in this part are detailed models and correlations for the spray's Sauter mean diameter, volumetric flux distribution, nucleate boiling heat transfer coefficient, and CHF. These tools are integrated into a comprehensive design methodology to enable the configuration and thermal optimization of a spray-cooling module.
Degree
M.S.M.E.
Advisors
Mudawar, Purdue University.
Subject Area
Mechanical engineering
Off-Campus Purdue Users:
To access this dissertation, please log in to our
proxy server.