Energy efficiency improvements of the industrial natural gas furnace using a heat recovery system

Kocevski, Zoran and Cingoski, Vlatko and Gelev, Saso (2020) Energy efficiency improvements of the industrial natural gas furnace using a heat recovery system. Energetika 2020, 20. pp. 181-186. ISSN 978-86-86199-02-7

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Enterprises are strongly focused on the implementation
of various energy efficiency measures for optimizing their
existing power systems, such as power generation engines,
compressed air systems, lighting, production and distribution of hot water and steam, heating and cooling, energy recovery and recuperation systems, etc.

The potential for energy efficiency can be divided mainly into two groups. Most of the measures are determined based on technical solutions, but several measures relate to human psychology and the inclusion of changes in the daily habits of users. Most energy efficiency measures are acceptable from a financial point of view and offer a relatively quick return on investment, but some are financially more intense and with a longer period of return of the investment. This project describes a combined project for improvement of energy efficiency based on the implementation of an energy recovery system from exhaust gases on industrial furnaces, which use natural gas as primary energy fuel and automatic regulation and control of fan speed depending on the temperature of the product.
The basic idea of this project is to re-use the energy from
exhaust gasses which was initially released freely into the
atmosphere thought chimney by the development of a new heat
recuperation system. Energy gained from the recuperation
process was re-used in the same furnace as a pre-heat fresh air improving the energy efficiency of the same furnace.
Additionally, the authors explained the regulation and control of the cooling fans with VFD speed controllers based on the online measurement of the product temperature. The implementation of both ideas could result in ignificant energy savings with an ROI period of less than 1 year.

Item Type: Article
Subjects: Engineering and Technology > Electrical engineering, electronic engineering, information engineering
Engineering and Technology > Environmental engineering
Engineering and Technology > Other engineering and technologies
Divisions: Faculty of Electrical Engineering
Depositing User: Vlatko Cingoski
Date Deposited: 09 Sep 2020 07:24
Last Modified: 09 Sep 2020 07:24

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