May 13th, 2015
Studypool Tutor
Price: $10 USD

Tutor description

There are two ways to increase the rate of heat transfer • too increase c e se thee convection co vec o heat e transfer s e coefficient coe c e h

Word Count: 1214
Showing Page: 1/28
7 8 FinsHEAT CONDUCTION THROUGHFINSPrabal TalukdarAssociate ProfessorDepartment of Mechanical EngineeringIIT DelhiE-mail: prabal@mech.iitd.ac.inpMech/IITDIntroduction&Qconv = hA s (Ts T )There are two ways to increase the rate of heat transfer too increasec e se thee convectionco vec o heate transfers e coefficientcoe c e h to increase the surface area As Increasing h may require the installation of a pump or fan, Or replacingpg the existingg one with a largerg one The alternative is to increase the surface area by attaching to the surface extended surfaces called fins made of highly conductive materials such as aluminumHeat sinksPin finsThe thin plate fins of a car radiator greatlyincrease the rate of heat transfer to the airFins from natureLongitudinal finsRectangularTriangularConvex parabolicTrapezoidalConcave parabolicRadial fins:RectangulargpprofileTriangular profileHyperbolic profilePins:Radial fin coffee cup(a)Cylindrical (b)conical (c) concave parabolic (d) convex parabolicFin EquationdTQ& x = kA cdxd Q& x&&Q x + dx = Q x +dxdx&dQconv = hdA s (T T )Energy Balance:&dQx dx + hdA ( T T )&= Qx +sdxdT h dA s(T T ) = 0dx k dxQ& x = Q& x + dx + d Q& convd Adx d 2Tdx2c1 dA c dT 1 h dA s (T T ) = 0+

Review from student

Studypool Student
" Outstanding Job!!!! "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1823 tutors are online

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors