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035 _a.b10042234
099 9 _aAIT Thesis no. ET-81-6
100 1 _aTsai, Sing-Tsu
245 1 2 _aA special solar collector for ammonia-water absorption refrigeration
260 _aBangkok :
_bAsian Institute of Technology,
_c1981
300 _aix, 66 p.
490 1 _aThesis ;
_vno. ET-81-6
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1981
520 _aA 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.
650 0 _aSolar energy research
650 0 _aRefrigerators
700 1 _aExell, Robert H.B.,
_eChairperson
700 1 _aSaunier, G.Y.,
_eExamination Committee
700 1 _aWalter, Despiegelaere, Ir.,
_eExamination Committee
700 1 _aBhattacharya, Sribas C.,
_eExamination Committee
710 2 _aRSEA, ROC,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. ET-81-6
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B21574
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