Title: A study on the thermodynamic analysis of a cascaded latent heat storage system over the single storage tank system for diesel engine waste heat recovery

Authors: M. Chinnapandian; V. Pandiyarajan; R. Velraj

Addresses: Department of Aeronautical Engineering, St. Peter's University, Avadi, Chennai 600054, India ' Institute for Energy Studies, Anna University, Chennai 600025, India ' Institute for Energy Studies, Anna University, Chennai 600025, India

Abstract: This article presents the comparison of performance of a cascaded Latent Heat Storage (LHS) system over the Single Storage Tank (SST) system for heat recovery from a diesel engine. The energy and exergy saved and efficiencies during the charging process are evaluated and reported using actual system data. The discharge process is analysed with a case study and it is concluded that it is possible to improve both the energy and exergy efficiencies appreciably using the cascaded LHS system. The exergy analysis, combined with the environmental perspective, is the useful solution methodology for many of the energy and environmental problems.

Keywords: cascaded storage; HRHE; heat recovery; heat exchangers; exergy analysis; waste heat recovery; thermodynamics; cascaded latent heat storage; single storage tank; diesel engines; energy analysis; energy efficiency; exergy efficiency.

DOI: 10.1504/IJEX.2012.050229

International Journal of Exergy, 2012 Vol.11 No.3, pp.349 - 370

Received: 15 Apr 2011
Accepted: 11 Apr 2012
Published online: 08 Nov 2012 *

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