Skip to main content
SpringerLink
Log in

Theoretical Method for Evaluating the Heat of Combustion of Sewage Sludge in the Lack of Air

  • Published:
Solid Fuel Chemistry Aims and scope Submit manuscript

Abstract

A procedure based on the modification of the Mendeleev formula and the calculation of chemical equilibrium in an initial mixture is proposed for estimating the heat of combustion of sewage sludge (SWS) under conditions of lack of air. The equilibrium composition of a mixture is proposed to be calculated on the basis of applied programs or chemical equilibrium equations. For the second method, the initial equations and methods for their solution are given. Thus, two cases are considered. The first case is the absence of carbon from the equilibrium mixture and the second is the presence of carbon in the equilibrium mixture. A procedure is proposed for calculating an air deficiency coefficient at which carbon begins to appear in an equilibrium mixture. Test calculations were carried out for dry and wet SWS at a combustion temperature of 700°C using the NASA program and based on chemical equilibrium equations. A comparison between the calculation results obtained by both methods showed satisfactory agreement. For illustration, the calorific value of SWS was calculated at 700°C and an air deficiency coefficient of 0.5–1. The procedure can be used for fuels in which the contribution of sulfur to the heat of combustion of the fuel can be neglected.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.

REFERENCES

  1. Mendeleev, D.I., Sochineniya (Collected Works), Moscow: Izd. Akad. Nauk SSSR, 1949, vol. 15.

    Google Scholar 

  2. Bol’shaya Sovetskaya Entsiklopediya (Great Soviet Encyclopedia), Moscow: Sovetskaya Entsiklopediya, 1976, vol. 25.

  3. Vehanen, A. and Myllymakie, V., J. Adv. Mater. Technol., 2022, vol. 7, p. 122.

    Google Scholar 

  4. Yin, C.-Y., Fuel, 2011, vol. 90, p. 1128.

    Article  CAS  Google Scholar 

  5. Parikh, J., Channiwala, S.A., and Ghosal, G.K., Fuel, 2005, vol. 84, p. 487.

    Article  CAS  Google Scholar 

  6. Yazykov, N.A., Simonov, A.D., and Yakovlev, V.A., Zh. SFU. Khim., 2018, vol. 11, p. 93.

    Google Scholar 

  7. Ravich, M.B., Effektivnost’ ispol’zovaniya topliva (Fuel Efficiency), Moscow: Nauka, 1977.

  8. Van Krevelen, D.V. and Shuyer, J., Coal Science, Amsterdam: Elsevier, 1957.

    Google Scholar 

  9. Teplovoi raschet kotlov (normativnyi metod) (Thermal Calculation of Boilers: A Normative Method), St. Petersburg: Izd. NPO TsKTI, 1998, 3rd ed.

  10. Kushwah, A., Reina, T.R., and Short, M., Sci. Total Environ., 2022, vol. 834, p. 155243.

  11. Silva, I.P., Lima, R.M.A., Santana, H.E.P., Silva, G.F., Ruzene, D.S., and Silva, D.P., Energy, 2022, vol. 241, p. 122894.

  12. Ajorloo, M., Ghodrat, M., Scott, J., and Strezov, V., J. Energy Inst., 2022, vol. 102, p. 395.

    Article  CAS  Google Scholar 

  13. Safarian, S., Unnthorsson, R., and Richter, C., Renew. Sust. Energ. Rev., 2020, vol. 131, p. 109982.

  14. Ferreira, S., Monteiro, E., Brito, P., and Vilarinho, C., Energies, 2019, vol. 12, p. 160.

    Article  CAS  Google Scholar 

  15. Pomerantsev, V.V., Aref’ev, K.M., Akhmedov, D.V., Konovich, M.N., Korchunov, Yu.N., Rundygin, Yu.A., Shagalova, S.L., and Shestakov, S.M., Osnovy prakticheskoi teorii goreniya (Fundamentals of the Practical Theory of Combustion), Leningrad: Energoatomizdat, 1986. 312 s.

  16. Gordon, S. and McBride, B.J., Computer Program for Calculation of Complex Chemical Equilibrium Compositions, Rocket Performance, Incident and Reflected Shocks, and Chapman–Jouguet Detonations, NASA SP-273, 1976.

  17. Tubolkin, A.F., Tumarkina, E.S., Tarat, E.Ya., Rumyantseva, E.S., Averbukh, A.Ya., Kholodnov, V.A., and Mukhlenov, I.P. Raschety khimiko-tekhnologicheskikh protsessov (Calculations of Chemicotechnological Processes), Leningrad: Khimiya, 1982.

Download references

Funding

This work was carried out within the framework of a state contract of the Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences and supported by the Russian Science Foundation (project no. 17-73-30032).

Author information

Authors and Affiliations

  1. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    S. G. Zavarukhin, Yu. V. Dubinin, N. A. Yazykov & V. A. Yakovlev

  2. Novosibirsk State Technical University, 630073, Novosibirsk, Russia

    S. G. Zavarukhin

Authors
  1. S. G. Zavarukhin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yu. V. Dubinin
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. N. A. Yazykov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. V. A. Yakovlev
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding authors

Correspondence to S. G. Zavarukhin, Yu. V. Dubinin, N. A. Yazykov or V. A. Yakovlev.

Ethics declarations

The authors declare that they have no conflicts of interest.

Additional information

Translated by V. Makhlyarchuk

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zavarukhin, S.G., Dubinin, Y.V., Yazykov, N.A. et al. Theoretical Method for Evaluating the Heat of Combustion of Sewage Sludge in the Lack of Air. Solid Fuel Chem. 56 (Suppl 1), S55–S61 (2022). https://doi.org/10.3103/S0361521923010111

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S0361521923010111

Keywords:

Search

Navigation