Writing different simplified forms of the energy balance, begins with the full equation:
(a) For a closed system with no changes in kinetic energy or potential energy, the energy balance becomes:
(b) For a distillation column operating at steady state, the energy balance becomes:
(c) For a closed system, the energy balance becomes:
(d) For an open system operating at steady state, the energy balance becomes:
(e) For a steady state reactor that operates adiabatically, the energy balance becomes:

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Consider a spherical container of inner radius , outer radius r2, and thermal conductivity k. express the boundary condition on the inner surface of the container for steady one-dimensional conduction for the following cases: (a) specified temperature of 50°c, (b) specified heat flux of 30 w/m2 toward the center, (c) convection to a medium at t with a heat transfer coefficient of h

What is the fuid acceleration in vector form for the following velocity field? note i, j, and k are unit vectors. show all of your work.