Wszystkie pola: combined heat and power - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optimization of idealized ORC in domestic combined heat and power generation
Autorzy:: Rybiński, W.
Mikielewicz, J.
Powiązania:: https://bibliotekanauki.pl/articles/240921.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: ORC
CHP
thermodynamic optimization
endoreversible
optymalizacja termodynamiczna
Opis:: Organic Rankine cycle (ORC) is used, amongst the others, in geothermal facilities, in waste heat recovery or in domestic combined heat and power (CHP) generation. The paper presents optimization of an idealized ORC equivalent of the Carnot cycle with non-zero temperature difference in heat exchangers and with energy dissipation caused by the viscous fluid flow. In this analysis the amount of heat outgoing from the ORC is given. Such a case corresponds to the application of an ORC in domestic CHP. This assumption is different from the most of ORC models where the incoming amount of heat is given.
Źródło:: Archives of Thermodynamics; 2013, 34, 3; 137-146
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Economic effectiveness evaluation of the free piston Stirling engine-based micro-combined heat and power unit in relation to classical systems
Autorzy:: Uchman, Wojciech
Remiorz, Leszek
Kotowicz, Janusz
Powiązania:: https://bibliotekanauki.pl/articles/240538.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: heating systems
cost analysis
stirling engine
micro-cogeneration
system ciepłowniczy
analiza kosztów
mikrokogeneracja
Opis:: In this article, a comparison of economic effectiveness of various heating systems dedicated to residential applications is presented: a natural gas-fueled micro-cogeneration (micro-combined heat and power – µCHP) unit based on a free-piston Stirling engine that generates additional electric energy; and three so-called classical heating systems based on: gas boiler, coal boiler, and a heat pump. Calculation includes covering the demand for electricity, which is purchased from the grid or produced in residential system. The presented analyses are partially based on an experimental investigation. The measurements of the heat pump system as well as those of the energy (electricity and heat) demand profiles in the analyzed building were conducted for a single-family house. The measurements of the µCHP unit were made using a laboratory stand prepared for simulating a variable heat demand. The overall efficiency of the µCHP was in the range of 88.6– 92.4%. The amounts of the produced/consumed energy (electricity, heat, and chemical energy of fuel) were determined. The consumption and the generation of electricity were settled on a daily basis. Operational costs of the heat pump system or coal boiler based heating system are lower comparing to the micro-cogeneration, however no support system for natural gas-based µCHP system is included.
Źródło:: Archives of Thermodynamics; 2019, 40, 1; 71-83
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Optimal coefficient of the share of cogeneration in the district heating system cooperating with thermal storage
Autorzy:: Ziębik, A.
Gładysz, P.
Powiązania:: https://bibliotekanauki.pl/articles/240214.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: elektrociepłownia
kogeneracja
sieć ciepłownicza
współczynnik udziału kogeneracji
zasobnik ciepła
coefficient of the share of cogeneration
cogeneration
combined heat and power plant
district heating system
thermal storage
Opis:: The paper presents the results of optimizing the coefficient of the share of cogeneration expressed by an empirical formula dedicated to designers, which will allow to determine the optimal value of the share of cogeneration in contemporary cogeneration systems with the thermal storages feeding the district heating systems. This formula bases on the algorithm of the choice of the optimal coefficient of the share of cogeneration in district heating systems with the thermal storage, taking into account additional benefits concerning the promotion of high-efficiency cogeneration and the decrease of the cost of CO2 emission thanks to cogeneration. The approach presented in this paper may be applicable both in combined heat and power (CHP) plants with back-pressure turbines and extraction-condensing turbines.
Źródło:: Archives of Thermodynamics; 2011, 32, 3; 71-87
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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