Scholarly record
INCREASING PERFORMANCES OF A COMBINED HEAT AND POWER PLANT BY OPTIMAL TECHNOLOGY SELECTION AND OPERATION
Abstract
The efficient use of cogeneration systems depends on both the heat demand variations and on the restrictions imposed by the related legislation. In this paper, in order to optimize the operating regimes of a Combined Heat and Power Plant, authors have determined the correlation between functioning modes of the plants? equipment and the possible solutions to satisfy with precision the consumers? heat demand. Often, optimizing only the operating regimes can be non-profitable, especially for the case of modern and performing equipment. In such cases a big deviation from the nominal operating mode, it is not worth but rather a search for trigenartion solutions. In the paper there was presented a possible options of using thermal potential of the tow reciprocating engines of UPB CHP, to generate cooling water, in order to supply a potential consumer. According to the calculations the first proposed solution is technically efficient, however the first case (UPB Campus) has some special characteristics being a University. The most important is the fact that the cooling is needed only 500 hours per year. In this regard there have been performed a technical-economic analysis of implementation of a power, heat and cold system, dedicated to supply a University Campus buildings. An important problem occurs in the case of special consumers, such as the analyzed University, where even the demand for cooling suffers huge variations. For this reason, the possibility to implement a trigeneration solution, in order to supply the necessary for cooling some spaces and a new food store that will be built into the campus, was analyzed. The performed technical-economic analysis shows that the proposed trigeneration solution leads to increasing the energy and economic efficiency of the plant, as well as having a positive impact upon the environment due to the reduction of fossil fuel consumption.
Publication Impact Profile
Publication details
References10
Athanasovici, V. et al., Treaty of thermal engineering. Heat supply. Cogeneration (Tratat de inginerie termică. Alimentări cu căldură. Cogenerare), AGIR, Bucharest, 2010;
EU, Directive 2004/8/ec of the european parliament and of the council, Official J Eur Union L 2004; 52: pp 50–60.
Romanian Energy Regulatory Authority, Energy Efficiency Department, Energy: Efficiency Trends and Policies in ROMANIA. 2015 Bucharest, pp 35-46.
El-Khattam W., Bhattacharya K., Hegazy Y., and Salama M. M. A., Optimal investment planning for distributed generation in a competitive electricity market, IEEE Trans. Power Syst., Aug. 2004, pp. 1674–1684.
Kavvadias K.C., Tosios A.P., Maroulis Z.B., Design of a combined heating,cooling and power system: Sizing, operation strategy selection and parametric analysis, Energy Conversion and Management 51 (2010) pp 833–845.
Mancarella P, Chicco G. Assessment of the greenhouse gas emissions from cogeneration and trigeneration systems. Part ii: analysis techniques and application cases. Energy 2008; 33(3): pp 418–30.
Chicco G, Mancarella P. Trigeneration primary energy saving evaluation for energy planning and policy development. Energy Policy 2007;35(12):61, pp 32–44.
Piacentino A, Cardona F. An original multi-objective criterion for the design of small-scale polygeneration systems based on realistic operating conditions. Appl Therm Eng 2008;28(17–18):pp 391–404
Methodology for setting prices and quantities of electricity sold by producers on the basis of regulated contracts and prices for thermal energy delivered from plants with cogeneration groups, Approved by the Notice no. 4 of 17 January 2012, OPCOM.
Diana T., Paula T., Roxana P., Eduard M., George D., Energy saving and environmental protection by integrating cogeneration in new residential buildings, SGEM2017 Vienna GREEN Conference Proceedings, ISBN 978-619-7408-29-4 / ISSN 1314-2704, 27 - 29 November, 2017, Vol. 17, Issue 63, 527-534 pp; DOI: 10.5593/sgem2017H/63/S26.067
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
