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A-2-m by 1.5-m section of wall of an industrial furnace burning natural gas is not insulated, and the temperature at the outer surface of this section is measured to be 80 C. the temperature of the furnace room is 30 C, and the combined convection and radiation heat transfer coefficient at the surface of the outer furnace is 10 W/m^2*C. it is proposed to insulate this section of the furnace wall with glass wool insulation ( K= 0.038 W/m*C) in order to reduce the heat loss. assuming the outer surface temperature of the metal section still remains at about 80C, plot the thickness of the insulation that needs to be used as a function of the reduction in heat loss.
find the natural frequency of a pendulum for small angle deflections when the mass of the rod/string is not negligible. (Mass of rod = m, mass of ball = M.
a stainless steel bar 10 inch long and 38 inch in diameter is loaded in tension and experiences an elastic stretch of
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During the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the work input during this process. R(air)=287j/KgK
many important engineering structures are often coated in a protective paint layer of some kind. this is not simply to
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which acitivities does hydraulic analysis of a pipeline include using HYSYS software? what data can obtained?
fixed costfc 2000000 variable costvc 120.005q total costtc fc vc x q unit sales price p250nbspa determine the values
a power plant burns gas with hhv of 55000 kjkg to generate electricity of 10 mw. if the overall efficiency is 40 how
the position vector of a particle moving in the x-y plane at time t3 sec is rt32i-3j m. at time t5 sec its position
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