Integrated ejector cooling, PVT, and MGT system for smart building applications: An exergy and technoeconomic optimization study
Rising global energy consumption has increased pollution and greenhouse gas emissions, underscoring the urgent need for sustainable energy solutions. This research tackles this issue by developing an advanced energy system that combines photovoltaic-thermal, micro-gas-turbine, ejector cooling, auxil...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-02-01
|
| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25000127 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832573243938045952 |
|---|---|
| author | Saber Ranjbar Golafshani Ehsan Houshfar |
| author_facet | Saber Ranjbar Golafshani Ehsan Houshfar |
| author_sort | Saber Ranjbar Golafshani |
| collection | DOAJ |
| description | Rising global energy consumption has increased pollution and greenhouse gas emissions, underscoring the urgent need for sustainable energy solutions. This research tackles this issue by developing an advanced energy system that combines photovoltaic-thermal, micro-gas-turbine, ejector cooling, auxiliary heater, and hot water storage, all of which operate without relying on batteries. This system allows electricity to be exchanged with the grid, provides heating and cooling, and reduces dependence on traditional energy sources. The study uses energy, exergy, and economic analyses, along with an optimization process to maximize efficiency and reduce costs. Notably, the optimized system achieves a maximum annual exergy efficiency of 19.2 % and a minimum product cost of $17.71/MWh. In contrast, operational analysis shows an exergy efficiency of 11.31 % with a total product cost of $25.78/MWh. These findings highlight the system's ability to improve energy efficiency and reduce costs. The novelty of this work is in developing a new system that uniquely combines solar energy with waste heat recovery—an approach not previously explored. This setup reduces greenhouse gas emissions and provides a practical, battery-free energy management solution for industrial applications. It offers a more sustainable and cost-effective alternative to past models, showing strong potential to support cleaner industrial energy practices. |
| format | Article |
| id | doaj-art-c097113db5bc4e748a06a80b2ed9ea3d |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-c097113db5bc4e748a06a80b2ed9ea3d2025-02-02T05:27:21ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105752Integrated ejector cooling, PVT, and MGT system for smart building applications: An exergy and technoeconomic optimization studySaber Ranjbar Golafshani0Ehsan Houshfar1School of Mechanical Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, IranCorresponding author. Room 816, Mech. Eng. Dept. (New Building), Campus 2, College of Engineering, University of Tehran, North Kargar St., Tehran, Iran.; School of Mechanical Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, IranRising global energy consumption has increased pollution and greenhouse gas emissions, underscoring the urgent need for sustainable energy solutions. This research tackles this issue by developing an advanced energy system that combines photovoltaic-thermal, micro-gas-turbine, ejector cooling, auxiliary heater, and hot water storage, all of which operate without relying on batteries. This system allows electricity to be exchanged with the grid, provides heating and cooling, and reduces dependence on traditional energy sources. The study uses energy, exergy, and economic analyses, along with an optimization process to maximize efficiency and reduce costs. Notably, the optimized system achieves a maximum annual exergy efficiency of 19.2 % and a minimum product cost of $17.71/MWh. In contrast, operational analysis shows an exergy efficiency of 11.31 % with a total product cost of $25.78/MWh. These findings highlight the system's ability to improve energy efficiency and reduce costs. The novelty of this work is in developing a new system that uniquely combines solar energy with waste heat recovery—an approach not previously explored. This setup reduces greenhouse gas emissions and provides a practical, battery-free energy management solution for industrial applications. It offers a more sustainable and cost-effective alternative to past models, showing strong potential to support cleaner industrial energy practices.http://www.sciencedirect.com/science/article/pii/S2214157X25000127PVT panelsSmart buildingMGTEjectorExergy and cost optimization |
| spellingShingle | Saber Ranjbar Golafshani Ehsan Houshfar Integrated ejector cooling, PVT, and MGT system for smart building applications: An exergy and technoeconomic optimization study Case Studies in Thermal Engineering PVT panels Smart building MGT Ejector Exergy and cost optimization |
| title | Integrated ejector cooling, PVT, and MGT system for smart building applications: An exergy and technoeconomic optimization study |
| title_full | Integrated ejector cooling, PVT, and MGT system for smart building applications: An exergy and technoeconomic optimization study |
| title_fullStr | Integrated ejector cooling, PVT, and MGT system for smart building applications: An exergy and technoeconomic optimization study |
| title_full_unstemmed | Integrated ejector cooling, PVT, and MGT system for smart building applications: An exergy and technoeconomic optimization study |
| title_short | Integrated ejector cooling, PVT, and MGT system for smart building applications: An exergy and technoeconomic optimization study |
| title_sort | integrated ejector cooling pvt and mgt system for smart building applications an exergy and technoeconomic optimization study |
| topic | PVT panels Smart building MGT Ejector Exergy and cost optimization |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25000127 |
| work_keys_str_mv | AT saberranjbargolafshani integratedejectorcoolingpvtandmgtsystemforsmartbuildingapplicationsanexergyandtechnoeconomicoptimizationstudy AT ehsanhoushfar integratedejectorcoolingpvtandmgtsystemforsmartbuildingapplicationsanexergyandtechnoeconomicoptimizationstudy |