) ) ) $ ) ' $8 * % 12 2 ? 2554 31 ) ! ) – 1 )' *! 2554 5 " %! ,% * . "
6& !& N % % %@ G 8& &% 8 Infrared radiant distribution on flat plane in drying chamber + C K , 8 I 1 / + " * 2 ' + 2 Nutthawut Tojuntok1 Suphan Yangyuen2 Juckamas Laohavanich 2
% & ! %*! ) % - ,+ 2 $ ' "% '5 1 * % !q ! ! */! # # & */ # 5 2 ! % !q 1 ! ! / #8qqx ) $ ' 6 %* @ ) 1" * % 8 # 2 "% 8qqx 5 2 ! % !q 800 700 " 600 %
* 5 2 ! % % ! 0.15 0.30 " 0.45 ) " 2 ! @ ! ! # "C 1 ! % 5 % 5 () /!,+ ! ! 0.9 x 0.9 ) 1" , 2 "% 8qqx 5 2 ! % ! q ) % )* "+ ! ) "C 8qqx % 4.30 4.57 " 4.88 8)& ) )"2 % " )+ "% '5 1 * % !q 4 E * # * 5 () & * E ,+ !1 ! /! ( ) &," &! ) *" %! % (R2 = 0.702) ,+ "% '5 ) 5 ( ) 2 ! @ ! ! 4 q ,+ ! 1 * 5 ( ) 2 " / # C! )* "+ ! % !" " * 5 2 ! % - ! " " 2 / # ) %! #! q ,+ ! ) ) %! ( !4 ) *- ) % 5 () */! ,+ ! ) , ) ( ! # *
# # F: % !q ! # # ABSTRACT This study aimed to investigate on distribution of infrared (IR) ray on flat plane in the drying chamber. An electric type of infrared emitter, flat plate type was used. The experimental factors implied to study on radiant distribution were an electrical power of infrared emitter (IR) at 800, 700 and 600 watt spacing between the emitter and flat plane in the drying chamber (D) at 0.15, 0.30 and 0.45 m and then installed temperature sensors in 0.9x0.9 m2 area on steel flat plane. The result showed the IR was equal to an infrared peak wavelength of radiant distribution (O) of 4.30, 4.57 and 4.88 Â m, respectively. Then the experiment data was analyzed in term of flat plane temperature, based on response surface methodology (RSM) obtained from a second order polynomial model (R2=0.702).The simulation showed decreasing of wavelength and infrared emitter to horizontal level decreased. The slope of graph is higher that mean variance of temperature distribution in chamber were increased too. Keywords: Infrared ray, flat plane, drying chamber
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Student, Faculty of Engineering, Mahasarakham University, Khamriang, Kantarawichai, Mahasarakham 44150 Lecturer, Faculty of Engineering, Mahasarakham University, Khamriang, Kantarawichai, Mahasarakham 44150
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