SOLAR WATER PREHEATING FOR OPEN DISTRICT HEATING NETS - OPTIMIZATION OF THE AIR-TO-WATER HEAT EXCHANGER DESIGN

摘要

This paper describes an air-to-water heat exchanger design procedure for water preheating in open district heating nets. The design procedure includes an integrated economical optimization. The target function for the optimization is the cost effectiveness. In the optimization, different heat exchanger geometry and operating parameters have been varied by a genetic optimization algorithm.