An evaluation of wind turbine waste heat recovery using organic Rankine cycle. (20th March 2019)
- Record Type:
- Journal Article
- Title:
- An evaluation of wind turbine waste heat recovery using organic Rankine cycle. (20th March 2019)
- Main Title:
- An evaluation of wind turbine waste heat recovery using organic Rankine cycle
- Authors:
- Nematollahi, Omid
Hajabdollahi, Zahra
Hoghooghi, Hadi
Kim, Kyung Chun - Abstract:
- Abstract: Wind turbine size has increased to megawatt capacity, and the related technologies and facilities have improved, including the cooling systems. Currently, all of the heat generated by wind turbine components is wasted to the environment. This study presents a conceptual design of a novel method for waste heat recovery of a wind turbine using an organic Rankine cycle (ORC). An organic Rankine cycle is implemented to the wind turbine as a part of the cooling system. The proposed system is thermodynamically modeled to evaluate the amount of recovered energy. Seven working fluids are chosen and investigated in the simulations to estimate the working fluid effect. The results revealed that the organic Rankine cycle can be a suitable choice for cooling wind turbines while simultaneously produce the power. Both exergy and energy analysis are conducted. A maximum power of 7.1 kW is provided by the proposed system using R134 when 20 K superheat is utilized. While R600a and SE36 stand on the next place. Furthermore, a minimum of 6.25 kW power is achievable. The generated work can be used as pump driving or electricity generation. In the next step, the thermal efficiency and total annual cost are optimized simultaneously using a multi-objective optimization for R134a as best working fluid in the thermodynamic viewpoint. It is found that the ideal efficiency of the system is obtained to be 14.7% with the total price of 7050 $/year. Finally, the effects of design parameters onAbstract: Wind turbine size has increased to megawatt capacity, and the related technologies and facilities have improved, including the cooling systems. Currently, all of the heat generated by wind turbine components is wasted to the environment. This study presents a conceptual design of a novel method for waste heat recovery of a wind turbine using an organic Rankine cycle (ORC). An organic Rankine cycle is implemented to the wind turbine as a part of the cooling system. The proposed system is thermodynamically modeled to evaluate the amount of recovered energy. Seven working fluids are chosen and investigated in the simulations to estimate the working fluid effect. The results revealed that the organic Rankine cycle can be a suitable choice for cooling wind turbines while simultaneously produce the power. Both exergy and energy analysis are conducted. A maximum power of 7.1 kW is provided by the proposed system using R134 when 20 K superheat is utilized. While R600a and SE36 stand on the next place. Furthermore, a minimum of 6.25 kW power is achievable. The generated work can be used as pump driving or electricity generation. In the next step, the thermal efficiency and total annual cost are optimized simultaneously using a multi-objective optimization for R134a as best working fluid in the thermodynamic viewpoint. It is found that the ideal efficiency of the system is obtained to be 14.7% with the total price of 7050 $/year. Finally, the effects of design parameters on the efficiency are obtained. Highlights: A novel method for wind turbine cooling using organic Rankine cycles is proposed. The proposed method can produce power while is cooling the wind turbine. ORC is modeled in both energy and exergy approach with different working fluids. A multi-objective optimization is applied for economical evaluation. A 7.1 kW power is utilized through the wind turbine cooling using R134. … (more)
- Is Part Of:
- Journal of cleaner production. Volume 214(2019)
- Journal:
- Journal of cleaner production
- Issue:
- Volume 214(2019)
- Issue Display:
- Volume 214, Issue 2019 (2019)
- Year:
- 2019
- Volume:
- 214
- Issue:
- 2019
- Issue Sort Value:
- 2019-0214-2019-0000
- Page Start:
- 705
- Page End:
- 716
- Publication Date:
- 2019-03-20
- Subjects:
- Wind turbine cooling -- Waste heat -- Organic rankine cycle (ORC) -- Clean energy -- Multi-objective optimization
Factory and trade waste -- Management -- Periodicals
Manufactures -- Environmental aspects -- Periodicals
Déchets industriels -- Gestion -- Périodiques
Usines -- Aspect de l'environnement -- Périodiques
628.5 - Journal URLs:
- http://www.sciencedirect.com/science/journal/09596526 ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.jclepro.2019.01.009 ↗
- Languages:
- English
- ISSNs:
- 0959-6526
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4958.369720
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 10142.xml