Domestic Micro-cogeneration: A High Efficiency, Cost Effective, Simple Solution

Domestic Micro-cogeneration: A High Efficiency, Cost Effective, Simple Solution

Luca Piancastelli

DIN, University of Bologna, viale Risorgimento, 2, Bologna 40135, Italy

Corresponding Author Email: 
luca.piancastelli@unibo.it
Page: 
46-51
|
DOI: 
https://doi.org/10.18280/ti-ijes.630106
Received: 
28 January 2019
| |
Accepted: 
26 March 2019
| | Citation

OPEN ACCESS

Abstract: 

A new, patented concept for a small cogeneration system is introduced in this paper. A small turbogas driven generator is inserted into the cold air duct of a condensing heating boiler for domestic use. The electric production takes place only when heating is active in winter. The turbogas exhaust and the cooling air are ingested by the burner of the boiler giving to the electric unit a nearly unitary efficiency. The generator is very small when compared to the total power of the system. The heat to electric power ratio is more than twenty.  In this way it is possible to run the turbogas-generator unit always at full power. Even if the turbogas needs a biennial replacement, the economical balance of the system is very convenient. In addition, the heating boiler does not necessitate of an external electric power supply. Therefore, it will run even in case of black-out. The reliability of the original heating boiler is preserved. In fact, in case of turbogas failure, the heating boiler is identical to the traditional unit. The simultaneous production of electrical and thermal energy from a single fuel source increases efficiency and reduces greenhouse gas emissions.

Keywords: 

Micro.cogeneration, domestic, heating boiler, micro-turbine

1. Introduction
2. The Proposed, Patented Solution
3. The Choice of the Ice Type
4. Small Turbogas Design
5. System Description
6. The Integration Study
7. An Example
8. Conclusions
  References

[1]    Desideria U, Cinti G, Discepolia G, Sisania E, Penchini D. (2012). SOFC Micro-CHP integration in residentia buildings. Proc. of Ecos 2012, 25th annual conf., June 26-29, Perugia, Italy, Firenze University Press, pp. 261-272. 

[2]    Piancastelli L, Bombardi T. (2017). Apparato per la cogeneazione di energia elettrica e termica in caldaie da riscaldamento. Brevetto per modello di utilità N. 202017000015769. February 2nd, 2017. Ministero dello Sviluppo Economico. Roma, Italy. (In Italian).

[3]    Shaik MI, Fazle M, Prathi VK, Lorenzini G, Lorenzini E. (2018). Cattaneo-Christov heat flux on UCM flow across a melting surface with cross diffusion and double stratification. Tecnica Italiana - Italian Journal of Engineering Science 61+1(1): 12-21. https://doi.org/10.18280/ti-ijes.620102

[4]    Piancastelli L, Peli F, Pezzuti E. (2018). The advantage of the “split” turbocharger in Formula 1 engines. Tecnica Italiana - Italian Journal of Engineering Science 61+1(1): 36-41. https://doi.org/10.18280/ti-ijes.620105

[5]    Piancastelli L, Frizziero L, Marcoppido S, Pezzuti E. (2012). Methodology to evaluate aircraft piston engine durability. International Journal of Heat & Technology 30(1): 89-92. https://doi.org/10.18280/ijht.300113

[6]    Piancastelli L, Frizziero L. (2014). Turbocharging and turbocompounding optimization in automotive racing. Asian Research Publishing Network (ARPN). Journal of Engineering and Applied Sciences 9(11): 2192-2199.

[7]    Piancastelli L, Frizziero L, Donnici G. (2015). Turbomatching of small aircraft diesel common rail engines derived from the automotive field. Asian Research Publishing Network (ARPN). Journal of Engineering and Applied Sciences 10(1): 172-178

[8]    Piancastelli L, Frizziero L. (2015). Supercharging systems in small aircraft diesel common rail engines derived from the automotive field. Asian Research Publishing Network (ARPN). Journal of Engineering and Applied Sciences 10(1): 20-26.

[9]    Piancastelli L, Cassani S. (2017). Maximum peak pressure evaluation of an automotive common rail diesel piston engine head. Asian Research Publishing Network (ARPN). Journal of Engineering and Applied Sciences 12(1): 212-218.

[10]    Piancastelli L, Cassani S. (2017). On the conversion of automotive engines for general aviation. Journal of Engineering and Applied Sciences 12(13): 4196-4203.

[11]    Beausoleil-Morrison I. (2010). The empirical validation of a model for simulating the thermal and electrical performance of fuel cell micro-cogeneration devices. Journal of Power Sources 195(5): 1416-1426.