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Heat Transfer Characteristics of Swirling Flow LPG Cooking Stove

Name: หทัยพร แทนวันดี

Organization : มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

keyword: LPG Cooking Stove

; Swirling

; Heat Transfer Coefficient

; Thermal Efficiency

Abstract: The objectives of this research is to study the heat transfer characteristics of 2 swirlingflow LPG cooking stoves,designed by Wichein [2] and Pisnu [3], and to investigate the affectingvariables i.e. burner dimensions, LPG flow rate, pan support heights, pan's diameters and waterlevels on heat transfer coefficient of both bottom and side areas of the pan. For the bottom area,the convection and radiation heat transfers were separately evaluated.Convection heat transfer coefficient increases with increasing LPG flow rate, butdecreases with increasing pan's diameter. Comparing the effect of pan support height onconvection heat transfer coefficient, the 2-centimeter pan support gives the largest value ofconvection heat transfer coefficient, and the 4-centimeter support gives higher value than the3-centimeter. The convection heat transfer coefficient of the burner that was designed by Pisnu ishigher than by Wichein.For radiation heat transfer, the effects of LPG flow rate and pan's diameter onradiation heat transfer coefficients are the same trend as those found in the convection heattransfer coefficient study. The radiation heat transfer coefficient of 3-centimeter pan support isthe highest, followed by 2 and 4-centimeter support, respectively. Wichein's design burner giveshigher radiation heat transfer coefficient than the Pisnu's.For the side area, heat transfer coefficient increases with increasing LPG flow rate, butdecreases with increasing pan's diameter and water level. The 2-centimeter pan support gives thehighest heat transfer coefficient, followed by 4 and 3-centimeter support, respectively. Wichein'sdesign burner gives higher heat transfer coefficient than Pisnu's.Heat transfer correlations were developed and applied in the mathematical model inorder to predict the thermal efficiency of burner. The predictions agreed well with theexperimental data. These correlations could be applied for design and selection of suitableoperating of LPG cooking stove.

มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

Address: กรุงเทพมหานคร (Bangkok)

Email: info.lib@mail.kmutt.ac.th

Name: รศ.ดร.สุวิทย์ เตีย

Role: อาจารย์ที่ปรึกษา

Created: 2543

Issued: 2005-10-28

Modified: 2006-05-30

วิทยานิพนธ์/Thesis

ISBN: 9746282468

CallNumber: CHE1104

tha

DegreeName: วิศวกรรมศาสตรมหาบัณฑิต

Level: ปริญญาโท

Descipline: วิศวกรรมเคมี

Grantor: มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

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1	CHE1104.pdf	30.32 MB	204	2019-07-21 21:55:17
2	CHE1104ab.pdf	92.05 KB	42	2019-07-21 22:07:38
3	CHE1104ab.txt	2.28 KB	23	2019-07-21 22:07:48

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