Potential of Several Alternative Propulsion Systems for Light Rotorcrafts Applications

Wasselin, T; Richard, Stéphane; Berr, F. Le; Dabadie, Jean-Charles; Alix, G.

doi:10.4271/2013-01-2230

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…However, the two systems showed the potential to recover power in the range of 2–2.5% [ 94 ]. Wasselin et al [ 98 ] conducted a comparative study on a turbo compound installed in both a turboshaft engine (used for light rotorcraft) and a diesel ICE. The results of the investigation showed that the diesel ICE offered a better potential to reduce both CO 2 emissions and fuel consumption for both high and medium loads as well as for long-range missions.…”

Section: Technologies and Options For Waste Heat Recoverymentioning

confidence: 99%

Opportunities of waste heat recovery from various sources: Review of technologies and implementation

Ononogbo

Nwosu²,

Nwakuba³

et al. 2023

Heliyon

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Section: Technologies and Options For Waste Heat Recoverymentioning

confidence: 99%

Opportunities of waste heat recovery from various sources: Review of technologies and implementation

Ononogbo

Nwosu²,

Nwakuba³

et al. 2023

Heliyon

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A comprehensive review of Trinitor components: A sustainable waste heat recovery polygenerative system for diesel vehicles

Duraivel,

Shaik,

Bansal

et al. 2024

J Therm Anal Calorim

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Internal combustion engine inefficiencies and waste heat emissions raise environmental concerns, as they waste fuel energy in the form of heat, increasing fuel consumption and greenhouse gas emissions. Additionally, waste heat contributes to the urban heat island effect. Waste heat recovery is a vital solution, capturing and repurposing heat to reduce fuel use, emissions, and costs while promoting sustainability, innovation, and economic growth. Polygenerative waste heat recovery maximizes energy efficiency by generating multiple forms of energy from a single source, enhancing overall sustainability. The proposed Trinitor model is a polygenerative system encompassing power generation, product drying, space cooling/heating, and oxygen production. Power generation utilizes exhaust heat stored in a phase change material (PCM) to generate electricity through a Hot Air Turbine. The PCM also stores heat from the PVT thermal collector and supports produce drying. In the space cooling/heating process, the temperature contrast resulting from the hot air generated by the turbine and the cooled air from the Cooling chamber is harnessed by the Seebeck principle within the TEG, converting heat energy into electricity, and it is possible to create temperature variations using the Peltier Effect by supplying electricity. Oxygen production involves dehumidifying air, separating oxygen from hydrogen using an electrolyzer and storing oxygen for civilian use. A component review identifies SiC wall flow-diesel particulate filters (DPF), a paraffin-based Latent Heat Storage System, and electric-assisted turbo compounding as cost-effective for energy production. Produce drying relies on hot air or infrared drying, a revolving wicks humidifier, and a cooling coil dehumidifier. Space cooling/heating needs a water-type PV/T collector, MPPT charge controller, lithium-ion batteries, and ceramic TEGs. A PEM electrolyzer with appropriate components (bipolar plates, electrodes, catalyst, membrane, and gasket) enhances oxygen production efficiency. Based on existing literature, the trinitor has the potential to attain an overall efficiency ranging from 40.12–54.81%. Thus, a combination of low-efficiency processes results in a highly efficient waste heat recovery Trinitor system, with further improvements possible through identified components’ integration.

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Review of Small Gas Turbine Engines and Their Adaptation for Automotive Waste Heat Recovery Systems

Kozak

Mazuro

2020

IJTPP

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Current commercial and heavy-duty powertrains are geared towards emissions reduction. Energy recovery from exhaust gases has great potential, considering the mechanical work to be transferred back to the engine. For this purpose, an additional turbine can be implemented behind a turbocharger; this solution is called turbocompounding (TC). This paper considers the adaptation of turbine wheels and gearboxes of small turboshaft and turbojet engines into a two-stage TC system for a six-cylinder opposed-piston engine that is currently under development. The initial conditions are presented in the first section, while a comparison between small turboshaft and turbojet engines and their components for TC is presented in the second section. Based on the comparative study, a total number of 7 turbojet and 8 turboshaft engines were considered for the TC unit.

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Potential of Several Alternative Propulsion Systems for Light Rotorcrafts Applications

Cited by 3 publications

References 4 publications

Opportunities of waste heat recovery from various sources: Review of technologies and implementation

Opportunities of waste heat recovery from various sources: Review of technologies and implementation

A comprehensive review of Trinitor components: A sustainable waste heat recovery polygenerative system for diesel vehicles

Review of Small Gas Turbine Engines and Their Adaptation for Automotive Waste Heat Recovery Systems

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