id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-689	Yanyongsak, Jaturaporn; Siemanond, Kitipat	Heat Exchanger Network Retrofit Under Fouling Effects with Cleaning Schedule 	2018	6	.pdf	application/pdf	2486	115	57	In order to modify former stage-wise model to HEN retrofit model, the constraints for existing exchanger matches have to be added to the synthesis model. The objective function of HEN retrofit model is maximizing profit as a function of utilities saving revenue and total investment cost from additional area and new heat exchanger units.	cache/cet-689.pdf	txt/cet-689.txt