Exploratory energy research program of the University of Hawaii at Manoa. Progress report [report]

1984 unpublished
N l evaluation of the findl reports of the first two groups of students to take the renewable resources engineering course disclosed a few problems, and modifications were recclarmended. and reinstalled. !the parabolic trough wriment yielded unreasonably high t h e d efficiencies, which prompted investigation of the thermocouples and heat transfer fluid. !the solar optics, flat-plate collector, and solar insolation experiments perfonned satisf~rily, although minor improverrents are being made
more » ... ts are being made in the solar optics experiments. If budget allows, a new light m c e may be required to improve the quality of data in the infra-red region. Instrlnaents that failed were repaired new experiments are being planned. Acquisition and instrumentation for monitoring of a solar-pawered refrigerator is being investigated, bich principles to students. instrumented to study the effects of various pond operating parameters. Nicolite Corporation for FTIR scans to test feasibility of us-it as a probe for in-furnace measurement of chemical species. will demonstrate solar cooling and applications of fundamental thermodynamr 'C A solar salt gradient pond will be built and The infra-red grade optical fiber has been delivered and forwarded to . SOLAR poM> (2LEANsING TECHNIQUES Karl Bathen, Principal Investigator Both sides of the test pond a m a t u s were filled and have been in test since early December 1983. One side contains four Mscible fluid layers with glycerin as the storage layer. hrdscible fluids, with a 30 percent salt solution as the storage layer. ponds have reached 130°F during wann-up despite cloudy and wet winter weather. Vacuuming and filtering the mineral oil/water interface quickly r-ves small debris and insects consistently deposited by w i n d s . that began forming on the glycerin pond sides was brought under control by vacuCrming, f i l t e r i n g , and injecting the water back at removal depth. Ihe second side contains three Biograwth i
doi:10.2172/5092364 fatcat:hvvmyaw52bfibltxr5alc3rc7a