Thermodynamic analysis of double effect parallel and series flow direct fired absorption systems with lithium bromide–water has been carried out for different operating conditions. Temperatures in primary generator (Tg) and secondary generator (Tgs)/secondary condenser (Tcs) are optimized analytically using an iterative technique for maximum coefficient of performance (COP) and minimum energy required. A solution distribution ratio for a parallel flow cycle is also optimized. Source of energy used to drive the cycles is considered as compressed natural gas (CNG) and liquefied petroleum gas (LPG). Exergy destruction rate (EDR) in individual components as well as in the whole cycle along with volume flow rate of LPG and CNG is presented and compared. Results show that maximum COP for the parallel flow cycle is 3–6% higher than the series flow cycle. Also, minimum EDR of the parallel flow cycle is around 4% less while energy consumption is 2–3% low as compared to the series flow cycle.
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December 2019
Research-Article
First and Second Law Analyses of Double Effect Parallel and Series Flow Direct Fired Absorption Cycles for Optimum Operating Parameters
Md. Azhar,
Md. Azhar
1
Zakir Husain College of Engineering & Technology,
Department of Mechanical Engineering,
Aligarh Muslim University,
Aligarh, Uttar Pradesh 202002,
e-mails: md_azhar@zhcet.ac.in; azharishtiyaque@gmail.com
Department of Mechanical Engineering,
Aligarh Muslim University,
Aligarh, Uttar Pradesh 202002,
India
e-mails: md_azhar@zhcet.ac.in; azharishtiyaque@gmail.com
1Corresponding author.
Search for other works by this author on:
M. Altamush Siddiqui
M. Altamush Siddiqui
Zakir Husain College of Engineering & Technology,
Department of Mechanical Engineering,
Aligarh Muslim University,
Aligarh, Uttar Pradesh 202002,
e-mail: altamushsiddiqui@yahoo.co.in
Department of Mechanical Engineering,
Aligarh Muslim University,
Aligarh, Uttar Pradesh 202002,
India
e-mail: altamushsiddiqui@yahoo.co.in
Search for other works by this author on:
Md. Azhar
Zakir Husain College of Engineering & Technology,
Department of Mechanical Engineering,
Aligarh Muslim University,
Aligarh, Uttar Pradesh 202002,
e-mails: md_azhar@zhcet.ac.in; azharishtiyaque@gmail.com
Department of Mechanical Engineering,
Aligarh Muslim University,
Aligarh, Uttar Pradesh 202002,
India
e-mails: md_azhar@zhcet.ac.in; azharishtiyaque@gmail.com
M. Altamush Siddiqui
Zakir Husain College of Engineering & Technology,
Department of Mechanical Engineering,
Aligarh Muslim University,
Aligarh, Uttar Pradesh 202002,
e-mail: altamushsiddiqui@yahoo.co.in
Department of Mechanical Engineering,
Aligarh Muslim University,
Aligarh, Uttar Pradesh 202002,
India
e-mail: altamushsiddiqui@yahoo.co.in
1Corresponding author.
Contributed by the Advanced Energy Systems Division of ASME for publication in the Journal of Energy Resources Technology. Manuscript received December 10, 2018; final manuscript received May 23, 2019; published online June 5, 2019. Assoc. Editor: Abel Hernandez-Guerrero.
J. Energy Resour. Technol. Dec 2019, 141(12): 124501 (7 pages)
Published Online: June 5, 2019
Article history
Received:
December 10, 2018
Revision Received:
May 23, 2019
Accepted:
May 27, 2019
Citation
Azhar, M., and Siddiqui, M. A. (June 5, 2019). "First and Second Law Analyses of Double Effect Parallel and Series Flow Direct Fired Absorption Cycles for Optimum Operating Parameters." ASME. J. Energy Resour. Technol. December 2019; 141(12): 124501. https://doi.org/10.1115/1.4043880
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