Thermal modeling of a novel thermosyphonic waste heat absorption system for internal combustion engines

Paul Nwachukwu Nwosu, Mika Nuutinen and Martti Larmi

Energy, 2014, vol. 71, issue C, 21-31

Abstract: This paper investigates a thermal system that absorbs waste heat from an internal combustion (IC) engine in order to raise the temperature of a working fluid to a saturated state using thermosyphonic flow, non-intrusive of the engine operations. The absorbed heat is rejected to an enclosed space, suitable for in-transit drying. The thermal system comprises a cross-flow heat exchanger connected to a radiator which preheats the working fluid from an insulated (storage) tank. The preheated fluid flows through a radiant heat absorber which absorbs radiant heat from the exhaust manifold. To ensure that the system efficiently performs, a temperature differential is maintained by the heated space while the fluid is cyclically delivered to the tank. The system’s operations are described using a novel flow cycle, and the results indicate a significant heat recovery potential.

Keywords: Thermosyphon; Radiant; Waste heat absorber; Preheater; Internal combustion engine (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:71:y:2014:i:c:p:21-31

DOI: 10.1016/j.energy.2014.03.091

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