How do you calculate heat energy exchange?

Q=m \times c \times \Delta T Here, Q is the heat supplied to the system, m is the mass of the system, c is the specific heat capacity of the system and \Delta T is the change in temperature of the system. The transfer of heat occurs through three different processes which are, Conduction, Convection, and Radiation.

What is the formula for effectiveness of heat exchanger?

If one of the fluids is undergoing a change of phase throughout the entire heat exchanger and at a constant temperature (i.e. heat capacity is infinite), the thermal efficiency is simply Eff=1-exp(-U.A/Cmin), where Cmin is the heat capacity (m x cp) for the single phase fluid, U-overall heat transfer coeffcient and A …

What is the equation for energy balance?

Energy balance = energy input – energy output But you may not have the numbers to do the math. So to figure out your energy balance you need to gather some important information.

What is the formula for energy transferred?

= power x time
The formula which links energy transferred, power and time, and the formula which helps you calculate the energy transferred is as follows: Energy transferred = power x time.

How do you calculate energy transferred?

The energy transferred can be calculated using the equation:

  1. E = P × t. Where: E = energy transferred in joules (J) P = power in watts (W)
  2. E = I × V × t. Where: I = current in amperes (A) V = potential difference in volts (V)
  3. E = Q × V. Where: Q = charge in coulombs (C) V = potential difference in volts (V)

How is NTU calculated in heat exchanger?

NTU method formula:

  1. R (specific heat ratio) = CminCmax.
  2. And, NTU = UACmin.
  3. Where, R = CminCmax.
  4. and, NTU = CUACmin.
  5. ∴ R = CminCmax=Cmin∞ C min C max = C min ∞ =0.
  6. ∴R=CminCmax=1.
  7. ∴ɛ=QactualQmax.
  8. R = CminCmax C min C max =62500189000 = 0.3306.

What is NTU and HTU?

H = height of transfer units (HTU) – dimension of length. The number of transfer units (NTU) required is a measure of the difficulty of the separation. A single transfer unit gives the change of composition of one of the phases equal to the average driving force producing the change.