الفهرس 
Exergy lossesOnly 14 pages are availabe for public view
 |  | from | 173 |  |  |
| | | from | 173 | | |
Abstract
Energy saving is one of the recent important concerns in the world. The energy
shortage motives to tackle the increasing energy crisis. As the result of the energy
resources cost is too high, a lot of researches are being done for studying energy
saving methods. The high temperature of exhaust gases out from the glass melting
furnace can be used as a waste heat. It has been achieved by using the extracted energy
from the exhaust gases to use it as a heat generation source in the absorption unit.
This study is concerned with designing and executing of heat exchanger for
optimum using of energy of exhaust gases. The heat content in exhaust gases can be
used in the absorption chiller to preheat dilute solution (lithium bromide) before
entering the generator. The exploiting energy of high temperature exhaust gases will
reduce the rate of consumption of used fuel. Moreover it prevents the waste heat of
exhaust gases out from chimney to the atmosphere. Gas analyzer device is used to
analyze the flue gases going out the glass melting furnace. The pressure DROP due to
the chimney draught is taken into consideration.
A modified model (Lumped) is developed to determine the temperature
distribution along the chimney. This model is validated by exploiting the published
theoretical and experimental data. Comparisons between analytical and experimental
results of this study are presented. Heat and mass balances of each component of the
absorption system are applied to determine the properties of Li-Br and C.O.P. of the
absorption cycle.
The heat recovery unit is designed to extract waste heat from flue gases to
preheat the Li-Br solution before entering generator in order to save energy. Cross
flow continues plate fin heat exchanger and shell-tube heat exchanger are the designed
types of heat recovery unit. Theoretical analysis has been done for the heat extraction
unit. The heat exchanger is used for heating Li-Br solution to a temperature of 116oC
using exhaust gases produced from the glass melting furnace is designed and
constructed at El-Araby Glass Factory (Lighting Technology) in Quesna, Minoufiya,
Egypt.