TY - RPRT TI - A comparison of unglazed flat plate liquid solar collector thermal performance using the ASHRAE Standard 96-1980 and modified BSE test procedures AU - Jenkins, John P AU - Reed, Kent A PY - 1982 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 82-2522 DO - 10.6028/NBS.IR.82-2522 ER -