Cogeneration Unit with a Pulse Detonation Engine

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F24%3A10255532" target="_blank" >RIV/61989100:27710/24:10255532 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27230/24:10255532

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Cogeneration Unit with a Pulse Detonation Engine

Original language description

Background: Effective use of the chemical energy of biogas by transforming it into mechanical, thermal and electrical energy is an extremely actual topic in the use of renewable energy sources with minimal impact on the quality of the environment. The cogeneration unit is designed for the efficient production of electricity, using the technology of a pulse detonation engine burning mixture of biogas and hydrogen. Part of the heat from engine cooling is further used for the production of low- potential steam in the steam RC cycle and part is available for heating of fermentation tanks, or possibly for pre-treatment or drying of biomass.Objective: A structurally simple, investment- and operationally undemanding unit for the efficient use of biogas energy with the possibility of installation in the biogas stations technology.Methods: Balance calculations and functional diagrams were used for the production of a lab-scale functional sample of the unit. Sets of tests with diagnostic measurement of thermal technical parameters during operation of the unit led to its optimal structural design.Results: Depending on the composition of the input biogas, its treatment and enrichment with hydrogen in the range of 20-30 % by volume is performed. When igniting such enriched biogas, it is possible to obtain the required velocity of the output flue gas (105-115 m/s) at a high temperature (530-590 oC), and the enthalpy and kinetic energy thus obtained can be further transformed for the production of electric power in the range of 8-10 kW with simultaneous gain of 4-8 kW of heat.Conclusion: The system of transformation of hydrogen-enriched biogas chemical energy into electrical and thermal energy is a unique due to the type of equipment used, especially the pulse detonation engine, and their connection with the aim of minimizing losses.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20700 - Environmental engineering

Project

<a href="/en/project/TN02000025" target="_blank" >TN02000025: National Centre for Energy II</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů