TY - BOOK AU - Tsai,Sing-Tsu AU - Exell,Robert H.B. AU - Saunier,G.Y. AU - Walter,Despiegelaere,Ir AU - Bhattacharya,Sribas C. ED - RSEA, ROC, TI - A special solar collector for ammonia-water absorption refrigeration T2 - Thesis PY - 1981/// CY - Bangkok PB - Asian Institute of Technology KW - Solar energy research KW - Refrigerators N1 - A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development; Thesis (M.Eng.) - Asian Institute of Technology, 1981 N2 - A new design for the generator-absorber in the form of a flat-plate solar collector having 13 mm risers thermally attached to a black plate 2 m long by 0.3 m wide and two 50 mm return tubes acting as a solution reservoirs has been constructed and tested. Fast heating and distillation of ammonia occurs due to the low heat capacity of the plate, while rapid cooling of t he generator and reabsorption of ammonia during -refrigeration at night is obtained by removing the back insulation. Using 10.1 kg of aqua-ammonia with ammonia concentration 46% by weight, l. 5 kg of ammonia could be distilled on a typical day, and 3 kg could be distilled with the helps of booster mirrors in the collector. This yield is a considerable improvement on yields from previous designs in AIT. Estimates of the thermosyphon velocity show that in bright sunlight, the solution in the collector circulates once per minute. UR - http://203.159.5.9/ait-thesis/detail.php?q=B21574 ER -