Wednesday
November 26, 2014

Homework Help: physical

Posted by itufizik on Monday, July 23, 2012 at 1:11pm.

An air-cooled motorcycle engine loses a significant amount of heat through thermal radiation according to the Stefan-Boltzmann equation. Assume that the ambient temperature is T0 = 22.3įC (295.45 K). Suppose the engine generates 13.5 hp (10.07 kW) of power and, due to several deep surface fins, has a surface area of A = 0.530 m2. A shiny engine has an emissivity e = 0.0490, whereas an engine that is painted black has e = 0.950.

a) Determine the equilibrium temperature (in K) for the shiny engine. (Assume that radiation is the only mode by which heat is dissipated from the engine.)

b) And determine the equilibrium temperature (in K) for the black engine.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Heat Transfer - 1.The physical significance of ....... is that it tells us how ...
Heat Transfer - Fill In the Blanks: 1.The physical significance of ....... is ...
engineering science - A ramjet is to propel an aircraft at Mach 3 at high ...
Physics - I am stuck on this question and not really sure what to do for it. I ...
physics - A child has a temperature of 101◦F. If her total skin area is 13...
College Physics - Electronics and inhabitants of the International Space Station...
physics - A child has a temperature of 101◦F. If her total skin area is 13...
physicsss - Phobos is the larger and closer of Marsís two moons. It has no ...
physics 4**!! - Consider a double-paned window consisting of two panes of glass...
physics - A slab of a thermal insulator with a cross-sectional area of 115 cm2 ...

Search
Members