id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajird-592	Saja Muthana. Naif	MODIFIED SOLAR WATER HEATER WITH CORRUGATED ABSORBER TUBE	2023	15	.pdf	application/pdf	5857	275	53	The different types of solar thermal collectors used in SWHS include stationary collectors, also known as non-concentrating collectors, and sun tracking collectors, also known as concentrating collectors. One essential technology for transforming the plentiful solar energy into useable energy is solar water heating systems (SWHS).	cache/ajird-592.pdf	txt/ajird-592.txt