Walls influence interior radiant environment of: Livestock shelters for shade
T. E. Bond
C. F. Kelly
California Agriculture 17(9):10-11. DOI: 10.3733/ca.v017n09p10.
Leroy Hahn is Agricultural Engineer, ARS, U. S. Dept. of Agriculture, Columbia, Missouri (formerly stationed at Davis, California); T. E. Bond is Agricultural Engineer, ARS, U. S. Dept. of Agriculture, Davis, California; C. F. Kelly was Professor and Chairman of the Department of Agricultural Engineering, U.C., Davis, and is now Assistant Director, California Agricultural Experiment Station.
Placing a simple shade over an animal exposed to a hot environment and direct radiant energy from the sun, cuts the radiation heat load on that animal about 45%. Addition of one wall caused an additional 5% reduction, and each additional wall (up to three) caused an additional 2% reduction—making a total reduction in radiation heat load resulting from a three-sided shelter of about 54%, according to this report of Davis tests.
This was a cooperative investigation between the Agricultural Engineering Research Division, ARS, USDA, and the U.C. Agricultural Experiment Station.