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Advances in Fluid and Thermal Engineering pp 459–478Cite as

Thermodynamic Investigation of Solar Energy-Driven Diffusion Absorption Refrigeration Cycle

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Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

Abstract

The increasing demand of refrigeration and air conditioning with associated consequence of global warming across the world has made it inevitable for scientific community to look for an alternative of conventional energy sources and to minimize effects of CFC’s and HCFC’s on global warming and ozone layer depletion while facilitating the requirements of refrigeration and air conditioning. It is evident that the geographical locations on the earth having ample sunshine have more refrigeration requirements; however, these locations also offer potential opportunity for utilizing solar radiations for solar energy-driven refrigeration systems. This study focuses on the thermodynamic modelling and analysis of solar energy-driven ammonia–water diffusion absorption refrigeration cycle with helium as pressure equalizing inert gas. It is seen that the loss percentage in the coefficient of performance (WPL and WHPL) is 2.8% higher than cooling capacity percentage loss at low generator temperature while there is no marginal drops at higher temperature. It is also found that the generator temperature in the range of 110–150 °C is best suited to produce maximum refrigerating effect.

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Abbreviations

\( \dot{Q} \) :

Heat transfer rate (J/s) or (W)

T :

Temperature (°C, K)

h :

Enthalpy (kJ/kg)

P :

Pressure (kPa, bar)

\( \xi \) :

Mass fraction of ammonia in liquid phase

\( \zeta \) :

Mass fraction of ammonia in vapour phase

COP:

Coefficient of performance

ṁ :

Mass flow rate (kg/s)

X :

Quality of vapour

Π :

Mass flow ratio

I :

Inert Helium gas

ε :

Effectiveness of heat exchanger

SHX:

Solution heat exchanger

WPL:

With pressure loss

WHPL:

Without pressure loss

GHX:

Gas heat Exchanger

v and f:

stands for vapour or gas and liquid

g:

Generator

r:

Rectifier

a:

Absorber

c:

Condenser

e:

Evaporator

ar:

Ammonia gas residuals

rh:

Recuperative heat exchanger

sys:

Total system pressure

Numeric:

1, 2, 3, … System’s states

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Author information

Authors and Affiliations

  1. Mechanical Engineering, A.K.T.U., Lucknow, Uttar Pradesh, India

    Kishan Pal Singh

  2. Mechanical Engineering, H.B.T.U., Kanpur, Uttar Pradesh, India

    Onkar Singh

Authors
  1. Kishan Pal Singh
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  2. Onkar Singh
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Corresponding author

Correspondence to Kishan Pal Singh .

Editor information

Editors and Affiliations

  1. Oak Ridge Institute for Science and Education, Oak Ridge, TN, USA

    Pankaj Saha

  2. Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, Delhi, India

    P.M.V. Subbarao

  3. Department of Mechanical Engineering, Amity School of Engineering and Technology, Amity University Uttar Pradesh, NOIDA, Uttar Pradesh, India

    Basant Singh Sikarwar

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Cite this paper

Singh, K.P., Singh, O. (2019). Thermodynamic Investigation of Solar Energy-Driven Diffusion Absorption Refrigeration Cycle. In: Saha, P., Subbarao, P., Sikarwar, B. (eds) Advances in Fluid and Thermal Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-6416-7_43

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  • DOI: https://doi.org/10.1007/978-981-13-6416-7_43

  • Published:

  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-13-6415-0

  • Online ISBN: 978-981-13-6416-7

  • eBook Packages: EngineeringEngineering (R0)

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