Alpha Geek

(8)

$10/per page/Negotiable

About Alpha Geek

Levels Tought:
University

Expertise:
Accounting,Algebra See all
Accounting,Algebra,Architecture and Design,Art & Design,Biology,Business & Finance,Calculus,Chemistry,Communications,Computer Science,Environmental science,Essay writing,Programming,Social Science,Statistics Hide all
Teaching Since: Apr 2017
Last Sign in: 438 Weeks Ago, 6 Days Ago
Questions Answered: 9562
Tutorials Posted: 9559

Education

  • bachelor in business administration
    Polytechnic State University Sanluis
    Jan-2006 - Nov-2010

  • CPA
    Polytechnic State University
    Jan-2012 - Nov-2016

Experience

  • Professor
    Harvard Square Academy (HS2)
    Mar-2012 - Present

Category > Business & Finance Posted 26 Apr 2017 My Price 2.00

Free convection occurs between concentric spheres

Free convection occurs between concentric spheres. The inner sphere is of diameter Di = 50 mm and temperature Ti = 50°C, while the outer sphere is maintained at To = 20°C. Air is in the gap between the spheres. What outer sphere diameter is required so that the convection heat transfer from the inner sphere is the same as if it were placed in a large, quiescent environment with air at T∞ = 20°C?

 

 

Answers

Alpha Geek
(8)
Status NEW Posted 26 Apr 2017 08:04 AM My Price 2.00

-----------

Attachments

file 1493196591-Answer.docx preview (101 words )
F-----------ree----------- co-----------nve-----------cti-----------on -----------occ-----------urs----------- be-----------twe-----------en -----------con-----------cen-----------tri-----------c s-----------phe-----------res-----------. T-----------he -----------inn-----------er -----------sph-----------ere----------- is----------- of----------- di-----------ame-----------ter----------- Di----------- =----------- 50----------- mm----------- an-----------d t-----------emp-----------era-----------tur-----------e T-----------i -----------= 5-----------0°-----------C, -----------whi-----------le -----------the----------- ou-----------ter----------- sp-----------her-----------e i-----------s m-----------ain-----------tai-----------ned----------- at----------- To----------- =----------- 20-----------°C-----------. A-----------ir -----------is -----------in -----------the----------- ga-----------p b-----------etw-----------een----------- th-----------e s-----------phe-----------res-----------. W-----------hat----------- ou-----------ter----------- sp-----------her-----------e d-----------iam-----------ete-----------r i-----------s r-----------equ-----------ire-----------d s-----------o t-----------hat----------- th-----------e c-----------onv-----------ect-----------ion----------- he-----------at -----------tra-----------nsf-----------er -----------fro-----------m t-----------he -----------inn-----------er -----------sph-----------ere----------- is----------- th-----------e s-----------ame----------- as----------- if----------- it----------- we-----------re -----------pla-----------ced----------- in----------- a -----------lar-----------ge,----------- qu-----------ies-----------cen-----------t e-----------nvi-----------ron-----------men-----------t w-----------ith----------- ai-----------r a-----------t T-----------∞----------- =----------- 20-----------°C-----------? -----------Ans-----------wer----------- T-----------he -----------rat-----------e o-----------f
Not Rated(0)