id	keyword
fuelectenerg-13576	collector
fuelectenerg-13576	solar
fuelectenerg-13576	fig
fuelectenerg-13576	water
fuelectenerg-13576	energy
fuelectenerg-13576	efficiency
fuelectenerg-13576	pvc
fuelectenerg-13576	heat
fuelectenerg-13576	temperature
fuelectenerg-13576	incident
fuelectenerg-13576	avallone