Abstract
AbstractThis study represents the evaluation of energy efficiency improvement using combination of natural gas, solar energy and flue gases heat recovery in polyester production. The analyzed energy sources are used for dry saturated steam generation. The energy consumption for combined system on location (φ = 45°49′) with collector field of 23.23 × 103 m2, was investigated. The hybrid system was calculated for four variants: (1) solarized process without flue gases heat recovery, (2) solarized processes with heat contend in flue gases using economizer, (3) solarized processes with heat contend in flue gases using an air preheater and (4) solarized processes with heat contend in flue gases using economizer and air preheater. The best method among presented sources is solution using economizer and the air preheater with natural gas, solar energy and flue gases heat recovery. The natural gas consumption is reduced for 67.82% which indicates that this solution is the optimal one. At the same time the volume ...
Highlights
Polyethylene terephthalate (PET) named polyester is the most common thermoplastic polymer
The results show that energy consumption using solarized process without flue gases heat recovery saves natural gas for 60.98%
Combustion air preheating, using solar radiation and flue gases results with fuel savings of 65.54%, while combining solarized process with flue gases heat recovery using both economizer and air preheater showed reduction of natural gas consumption for 67.82%
Summary
Polyethylene terephthalate (PET) named polyester is the most common thermoplastic polymer (https://en.wikipedia.org/wiki/Polyethylene_terephthalate). The application of solar energy, as a partial substitution for natural gas fuel in polyester production process, can reduce significantly the total energy consumption (Mihelić-Bogdanić, Budin, & Filipan, 1999; Mihelić-Bogdanić et al, 2000) The utilization of this friendly available and environmentally benign source depends on location of the plant, the insolation rate what means on latitude and climatologically conditions (Weiss & Biermayr, 2010). Combustion air, as well as feed water, are preheated with waste heat of flue gases In this hybrid system, natural gas fuel consumption and energy savings in process without flue gases recovery will be analysed.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
