We can approximate electric resistance heater as a continuous wire element that electricity passes through it. The voltage drop is 110 V and current flow is 4 A. The length of the whole resistance element is 2 m and diameter is 0.3 cm. Determine the room temperature if the convective heat transfer coefficient is 120 W/(m²K)? Hint: Use surface area of the heating element for convective heat transfer (A, TDL) and use energy equation by showing each term. Power is IV where I is the current and V is the voltage drop. Check midterm solutions file. (AU = (Qin + Win) - (Qout - Wout). -

We can approximate electric resistance heater as a continuous wire element that electricity passes through it. The voltage drop is 110 V and current flow is 4 A. The length of the whole resistance element is 2 m and diameter is 0.3 cm. Determine the room temperature if the convective heat transfer coefficient is 120 W/(m²K)? Hint: Use surface area of the heating element for convective heat transfer (A, TDL) and use energy equation by showing each term. Power is IV where I is the current and V is the voltage drop. Check midterm solutions file. (AU = (Qin + Win) - (Qout - Wout). -