Nag Hammadi Fiber Board Company’s Heating Unit: Energy and Exergy Analysis

H. Abd El-Hamid, Saddam; A. Abd El-Rahman, Ahmed; M. Ghazaly, Nouby; N. Shmroukh, Ahmed

doi:10.21608/ijasri.2022.246050

Nag Hammadi Fiber Board Company’s Heating Unit: Energy and Exergy Analysis

Document Type : Original Article

Authors

¹ Nag Hammadi Fiber Board Company, Qena, Egypt

² Aluminum Company of Egypt, Nag Hammadi, Qena, Egypt

³ Mechanical Engineering Department, Faculty of Engineering - South Valley University, Qena, Egypt

10.21608/ijasri.2022.246050

Abstract

In this study, energy and exergy analysis are studied to
examine and understand the performance of the combustion chamber
(furnace) of the heating unit in Nag Hammadi fiber board Company
(NFB) with a capacity of 22 MW, utilizing natural gas and biofuel
together where the combustion chamber is designed to burn natural
gas and wood dust at the same time to decrease the operating cost of
the heating unit. The main purpose of combustion chamber is to burn
natural gas and biofuel to supply the heating unit by high temperature
combustion products. There is no heat transfer inside the combustion
chamber except heat losses through the wall of the combustion
chamber. The purpose of the heating unit in the factory is to supply
the manufacturing processes by hot flue gases for dryer unit, hot
thermal oil for hot press system and saturated steam for the digester.
The energy and exergy efficiencies are found to be 69 % and 28 %,
respectively. This study is carried out to identify and quantify the
energy and exergy losses in the combustion chamber.

Keywords