03269nam a2200409 4500 20260818223153.0 280998s1989 th r 0000|0 eng d .b10045211 AIT Thesis no. ET-89-05 Anucha Promwungkwa A study of the waste heat veneer pre-dryer system Bangkok : Asian Institute of Technology, 1989 86 p. + 1 online resource Thesis ; no. ET-89-5 A thesis study submitted in partial fulfillment of the requirements for the degree of Master of Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1989 The reduction in energy consumption and/or increasing productivity when drying wood, by mean of energy auditing and improving dryer performance, is an important consideration for forest product industry. The studied veneer dryer system is located at Thai Plywood Company, Bangkok, Thailand. Energy auditing was carried out for the hot oil heater and veneer dryer system. Energy analysis showed that fuel cost savings of around 1.32 million Bahts per year, or about 15.9% of the total fuel cost for 1988, was possible by adjusting the A/F ratio and utilizing the flue gas heat recovery system to pre-heat the combustion air. The potential of waste heat recovery system was simulated and evaluated with full-scale dryer system. The option to pre-dry fresh veneer with recovered waste heat was chosen to meet factory objective of increasing plant productivity. Results from laboratory-scale experiment and computer simulation model of parallel flow veneer drying were used as input to simulate the full-scale model of veneer pre-dryer unit. The predicted results were then used for selecting suitable operating conditions for a proposed two-stage veneer dryer (pre-dryer and conventional dryer). As a result, an increase in productivity of kiln no.3 from 36m3 to 67 m3 of veneer solid per day was obtained. Control guideline for the proposed full-scale pre-dryer was also recommended. Heat recovery Exell, R.H.B., Chairperson Mora, Jean-Claude, Examination committee Prida Wibulswas, Examination committee Danish International Development Agency of Denmark, Scholarship donor Asian Institute of Technology. Thesis ; no. ET-89-5 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17678 .b10045211 mnait x 240409 2 951012 m a x 2 mnait mnait mnarc 20 40 Barcode : 30050003105045 CREATED : 1995-10-13 RECORD # : i10034110 LPATRON : 1024320 LCHKIN : 2012-10-15 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050003105052 CREATED : 1995-10-13 RECORD # : i10034122 LPATRON : 1015887 LCHKIN : 2005-01-02 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050120344600 CREATED : 2016-06-15 RECORD # : i1303991x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 115046 115046 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT Thesis no. ET-89-05 30050003105045 2026-08-18 22:31:53 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT Thesis no. ET-89-05 30050003105052 2026-08-18 22:31:53 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. ET-89-05 30050120344600 2026-08-18 22:31:53 2026-08-18 40