000			03084nas a2200397 4500
005			20260818090143.0
008			290998s1992 th r 000| eng d
035			_a.b10189348
099		9	_aAIT Thesis no.ET-92-25
100	1		_aNorbu, Pema
245	1	0	_aDesign and testing of a solar timber seasoning kiln
260			_aBangkok : _bAsian Institute of Technology, _c1992
300			_a55 leaves : _bill.
490	1		_aThesis ; _vno. ET-92-25
500			_aA thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering
502			_aThesis (M.Eng.) - Asian Institute of Technology
520			_aA solar drier for the purpose of seasoning timber was designed, constructed md tested at the AIT Energy Technology Park. The solar dri er was designed for a capacity of 2.35 m3 of timber, incorporating a two- pass collector with an effective absorber area of 10.8 m2 . Forced air circulation within the d1ier was maintained by direct coupling of four 12 V DC automobile radiator cooling fans to two 48 WP photovolt aic panels. The use of power regulation and storage was eliminated in order to reduce cost. In effect the design was to suit timber seasoning operations in areas where grid electrical power is not available. The drier wa,c; test ed in two phases. The first phase was determination of the collector performance which was undertaken under no-load conditions. The all- day efficiency detennined from t est data averaged over several consecutive clear days wac; 26 %. In the second phase, the drier wa,c; rw1 under a pre- d.iied timber load of 0.75 m3 which constituted of battens of size 2" width by l " t hickness. The timber in the solar kiln dried from an initial moisture content of about J 5 % dry basis to about 8 % in 8 days. Energy and mass balances on the kiln revealed that 31 % of the energy was lost through the kiln struct ure and about 7 % through leakages. The energy Jost through tJ1e vents as exhaust and energy utilized in bringing the inlet air upto operating temperature accounted for about 42 %.
650		0	_aSolar dryers
650		0	_aKilns
700	1		_aExell, R.H.B., _eChairperson
700	1		_aBhattacharya, Sribas C., _eExamination Committee
700	0		_aSupachart C., _eExamination Committee
710	2		_aGovernment of Austria, _eScholars h"ip Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. ET-92-25
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B16284
907			_a.b10189348 _bmnait _cx
902			_a240411
998			_b2 _c951012 _dm _ea _fx _g0
945			_lmnait
945			_lmnarc
942			_c22
942			_c40
909			_aBarcode : 30050120678825 _bCREATED : 2014-02-18 _cRECORD # : i12766331 _dLPATRON : 1026550 _eLCHKIN : 2016-09-29 _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 1 _jTOT RENEW : 2
909			_aBarcode : 30050120367635 _bCREATED : 2016-08-06 _cRECORD # : i13024620 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
999			_c27049 _d27049