Module 1: Fuels characterization and energy balance
  Lecture 6: Heat balance in Coke oven and clean Development Mechanism
 

Clean Development Mechanism (CDM)

Concerns with development of technologies those relate to emission reduction. CDM stimulates sustainable development and emission reduction. For development of clean technologies in the existing processing route, energy balance of a route or a process could provide useful information to evolve strategy for a new technology. Some of the benefits of energy balance.

  • It can identify the flow of energy.
  • It can determine energy losses and identify the location(s) of losses.
  • Assigning temperatures to flow of energy can disclose the quality of energy. Quality of energy is directly proportional to its temperature. We may have low quality, medium quality or high quality energy.
  • In formations on quality and quantity of energy can be used to plan devices for energy recovery and its reuse.

Illustration of CDM

To illustrate the CDM, by-product coke oven is selected as an example. Coke oven is employed to produce coke. Coke is a very important raw material to produce hot metal in blast furnace in integrated steel plants. Coke-ovens, in fact, are an-integral part of integrated steel plants.

It is well known that coke ovens produce large emissions. Consider heat balance of a Coke oven.
(Material balance is given in lecture 5, problem 1).


The following block diagram illustrates various heat inputs and outputs.


Figure 6.1:
Block diagram to illustrate the input and output of heat.