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Research Paper | Mechanical Engineering | Spain | Volume 6 Issue 9, September 2017
Analysis of a Combined Absorption Cycle for Power and Cooling with R134a-DEGDME Working Fluid Using a Scroll Expander
James Muye | Joan Carles Bruno | Rajagopal Saravanan | Alberto Coronas
Abstract: This paper presents the integration of a scroll expander into a combined power and cooling absorption cycle driven by low-grade heat sources such as solar energy and waste heat. R134a-DEGDME has been selected as the working fluid mixture to replace the commonly used ammonia-water mixture. The scroll device used here is derived from a compressor. The mathematical model adopted for the expander incorporates a simplified semi-empirical model that calculates the mechanical power, exhaust temperature and supply mass flow rate of the expander at accuracy levels of 9 %, 2 K and 3 %, respectively. Some operating parameters such as the generator (90-100C), condenser (18-26C) and evaporator (-4-10C) temperatures have been varied to investigate the behaviour of the combined cycle. For the selected cycle it is suggested that increasing the generator temperature is beneficial to both power generation and cooling production. However, increasing the condenser temperature is detrimental for both power and cooling. The increase of the evaporator temperature is also favorable for both outputs.
Keywords: Absorption cycles, Expander, Scroll, Power and coolingR134a/DEGDME mixture
Edition: Volume 6 Issue 9, September 2017,
Pages: 412 - 417
Similar Articles with Keyword 'Absorption'
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Research Paper, Mechanical Engineering, India, Volume 11 Issue 11, November 2022
Pages: 719 - 725Design of Medicine Refrigeration for Rural and Flood Affected Areas- Fast Chilling Solar Based Refrigerator with Dual Mode Battery Charging to Preserve Antitoxin for Treatment
P. Vijaya Kumari
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Research Paper, Mechanical Engineering, Nigeria, Volume 12 Issue 6, June 2023
Pages: 2593 - 2598Influence of Volume Concentration and Temperature on Viscosity and Thermal Conductivity of Terminalia Superba (Afara) Tree Bark Nanofluid
J. T. Awua | J. S. Ibrahim | A. O. Edeoja | A. Kuhe | K. T Gbugho | M. Sharifpur