PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ter heating sys tems consist of a solar collector a storage tank and depending on the technology, a pump that runs on electricity [9] A solar collector is a heat exchanger that absorbs the incoming solar irradiation and transfer s that heat to water flowing inside the tubes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ufl.edu