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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 1 Day Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
For heat transfer purposes, a standing man can be modeled as a 30-cm diameter, 175-cm long vertical cylinder with both the top and bottom surfaces insulated and with the side surface at an average temperature of 348°C. For a convection heat transfer coefficient of 10 W/m2 ·8°C, determine the rate of heat loss from this man by convection in an environment at 208°C.
2. A 9-cm-diameter spherical ball whose surface is maintained at a temperature of 1108°C is suspended in the middle of a room at 208C. If the convection heat transfer coefficient is 15 W/m2 ·°C and the emissivity of the surface is 0.8, determine the total rate of heat transfer from the ball.
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