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Radiative cooling test facility and performance evaluation of 4-MIL aluminized polyvinyl fluoride and white-paint surfaces

Technical Report ·
DOI:https://doi.org/10.2172/6541558· OSTI ID:6541558
; ; ; ;
A test facility designed to measure the amount of radiative cooling a specific material or assembly of materials will produce when exposed to the sky is described. Emphasis is placed upon assemblies which are specifically designed to produce radiative cooling and which therefore offer promise for the reduction of temperatures and/or humidities in occupied spaces. The hardware and software used to operate the facility are documented and the results of the first comprehensive experiments are presented. A microcomputer-based control/data acquisition system was employed to study the performance of two prototype radiator surfaces: 4-mil aluminized polyvinyl fluoride (PVF) and white painted surfaces set below polyethylene windscreens. The cooling rates for materials tested were determined and can be approximated by an equation (given). A computer model developed to simulate the cooling process is presented. (MCW)
Research Organization:
Lawrence Berkeley Lab., CA (USA)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
6541558
Report Number(s):
LBL-12049
Country of Publication:
United States
Language:
English

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Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
36 MATERIALS SCIENCE
360404 -- Materials-- Polymers & Plastics-- Physical Properties-- (-1987)
360603 -- Materials-- Properties
ALUMINIUM
COATINGS
COMPUTERIZED CONTROL SYSTEMS
COMPUTERIZED SIMULATION
CONTROL SYSTEMS
COOLING
DATA ACQUISITION
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSIVITY
ENERGY TRANSFER
EQUIPMENT
FLUORIDES
FLUORINATED ALIPHATIC HYDROCARBONS
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
HEAT EXCHANGERS
HEAT TRANSFER
MATERIALS
METALS
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PAINTS
PERFORMANCE
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASTICS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYVINYLS
RADIANT HEAT TRANSFER
RADIATIONS
RADIATIVE COOLING
RADIATORS
REFLECTIVE COATINGS
REFLECTIVITY
SIMULATION
SOLAR EQUIPMENT
SPECTRALLY SELECTIVE SURFACES
SURFACE PROPERTIES
SURFACES
SYNTHETIC MATERIALS
TEDLAR
TEST FACILITIES
THERMAL RADIATION