Earticle

초록

영어

Use of high grade electrical energy, generated from fossil fuels, for cooling has increased environmental concerns like global warming and ozone layer depletion. Hence, there is a need to reduce dependence on them and explore potential environmental friendly options. In this aspect, vapor absorption system has scope of utilizing low grade energy source i.e. hot water from solar panel, to generate cooling effect and are environment friendly as no chloro-floro-carbons are used. The most usual combination of absorber refrigerant pair in such system is lithium bromide water (LiBr–H2O), where water vapor is the refrigerant. In present work, a hot water driven, single stage, absorption cooling system, using a lithium bromide water solution, is analyzed for determining the effect of various parameters on coefficient of performance (COP). Four basic stages in the absorption cycle are generation, condensation, evaporation and absorption with ideally no moving part. A configuration of theses four stages, having 5 TR cooling capacity is determined and examined for the variation in COP corresponds to the change in pressure and concentration. The pressure parameter is varied in condenser and evaporator, resulting graph shows that the increment in pressure of evaporator increases the COP whereas increment of pressure in condenser decreases the COP. At lower inlet concentration of LiBr solution to the absorber gives increment in COP.

목차

Abstract
 1. Introduction
 2. Heat and Mass Transfer Calculations
  2.1. Mass Flow Rate Calculations
  2.2. Heat Transfer Rate
  2.3. Coefficient of Performance (COP)
 3. Configuration of a 5 TR System
  3.1. Selection of Operating Parameters
  3.2. Configuration of Heat Exchangers
 4. Coefficient of Performance Analysis
  4.1. Effect of Solution Concentration
  4.2. Effect of Evaporator Pressure on COP.
  4.3. Effect of Condenser Pressure on COP
 5. Results and Discussion
 6. Conclusion
 References

키워드

저자

• Anil Sharma [ Department of Production Engineering, Birla Institute of Technology,Deoghar, India ]
• Bimal Kumar Mishra [ Department of Mathematics, Birla Institute of Technology, Ranchi, India ]
• Abhinav Dinesh [ Department of Electronics & Communication Engineering, Birla Institute of Technology, Jaipur, India ]
• Ashok Misra [ Department of Mechanical Engineering, RTC Institute of Technology, Ranchi, India ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of u- and e- Service, Science and Technology

• 간기

  격월간

• pISSN

  2005-4246

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605