This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: energy, kinetic energy, and potential energy on a per mass basis or gz + 2 V + h = e 2 out or in r where we have used the enthalpy, h, to represent the combined thermal and flow energy. We can write work and heat transfer in three different fashions: Total: Use capital and will have units of energy, kJ or Btu Rate: Use capital with dot over variable and will have units of power, kW or Btu/hr Specific: Use lower case and will have units of energy per mass, kJ/kg or Btu/lbm We can relate these three forms as shown below: ME 201 Thermodynamics 2 Total Work or Heat Transfer q m = Q t = Q w m = W t = W & & Power or Heat Transfer Rate q m = t Q = Q w m = t W = W & & & & Specific Work or Heat Transfer m Q = m Q = q m W = m W = w & & & &...
View Full Document
- Spring '06