02810nam a2200409 4500 20260818214606.0 280998s1986 th r 0000|0 eng d .b10042131 AIT Thesis no.ET-86-4 Choudhury, Imtiaz Ahmed A solar intermittent absorption refrigerator operating automatically with check valves Bangkok : Asian Institute of Technology, 1986 56 p. Thesis ; no. ET-86-4 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, 1986 This study is to make an intermittent type absorption solar powered refrigerator operate automatically by the use of check valves and solve the problem of heat transfer in the ice box. For this, a solar collector with 2 m2 area having 22.5 kg of aqua-ammonia solution have been used. Initial concentration of ammonia in the solution is 46% by weight. The evaporator coil is submerged in water in the ice box where ice is non-removable, but cools two adjacent compartments suitable for vaccine storage. After several attempts, check valves could not be used because of corrosion in the 0-Ring seals and ultimately hand valves were used. About 6.5 kg of ice has been produced in one day 1 s regeneration of ammonia. The amount of ammonia distilled, and hence the production of ice, was limited by the rather high temperature of the ammonia receiver during generation period. The overall efficiency (total refrigeration effect divided by the incident solar energy) of the system was 0.101 . Solar energy research Refrigeration and refrigerating machinery Exell, Robert H.B., Chairperson Prida Wibulswas, Examination Committee Bhattacharya, Sribas C., Examination Committee Reddy, T. A., Examination Committee DAAD, FRG, Scholarship Donor Asian Institute of Technology. Thesis ; no. ET-86-4 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B19618 .b10042131 mnait x 240409 2 951012 m a x 2 mnait mnarc 22 40 Barcode : 30050120679179 CREATED : 2014-12-02 RECORD # : i12762568 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120344972 CREATED : 2016-06-15 RECORD # : i13039192 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 109159 109159 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.ET-86-4 30050120679179 2026-08-18 21:46:06 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ET-86-4 30050120344972 2026-08-18 21:46:06 2026-08-18 40