Temat: thermodynamic - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Evaluation of thermodynamic properties for the biosorption of chromium by using cherry leaves (Muntingia calabura L.)
Autorzy:: Aathithya, R.
Sowparnika, J.R.
Balakrishnan, V.
Powiązania:: https://bibliotekanauki.pl/articles/11897.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: thermodynamic property
biosorption
chromium
cherry
leaf
Muntingia calabura
entropy
Opis:: Chromium is a heavy metal which has widely used in tannery and electroplating industries. Contaminations of these industrial metals into the river possess major threat to an environment. Therefore, biosorption is a technique which is applied for the sorption of heavy metal by a biomaterial. In the present study reveals that cherry leaves was used as a biomaterial and for that the thermodynamic properties was evaluated for the biosorption of chromium. From the thermodynamic studies it was found that the reaction was feasible, spontaneous and exothermic because the values of ΔG = negative, ΔS = negative and ΔH = positive. So, it was concluded that the experiment was thermodynamically feasible.
Źródło:: International Letters of Natural Sciences; 2014, 20
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Phenol Biosorption from Polluted Aqueous Solutions by Ulva lactuca Alga Using Batch Mode Unit
Autorzy:: Abbas, Mohammed Nsaif
Al-Hermizy, Suadat Mustafa Mohammed
Abudi, Zaidun Naji
Ibrahim, Thekra Atta
Powiązania:: https://bibliotekanauki.pl/articles/124215.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sea lettuce
Ulva lactuca
adsorption
phenol
aqueous solutions
isotherm
thermodynamic
Opis:: This paper is related to study the using sea lettuce (Ulva lactuca) as a low-cost adsorbent for removing the phenol compounds from aqueous solutions by adsorption under different operating conditions in a batch unit. The SEM and FTIR tests were performed to determine the morphological characteristics and the functional groups existing on the adsorbent material, respectively, while the surface area was identified by means of two techniques which were blue color method and BET method. The results of the adsorption experiments showed that the efficiency of the removal process is inversely proportional with initial concentration of phenol, pH and temperature; while the efficiency was directly proportional to adsorbent amount, agitation speed and treatment time. The results showed that the percentage of removal of phenol from processed water solutions ranged from 25.446% to 90.125%. The Langmuir and Freundlich isotherm models were chosen to estimate the amounts of phenol adsorption by the sea lettuce powder. The kinetic study shows that the adsorption was obeyed pseudo second order also the thermodynamic parameters were calculated.
Źródło:: Journal of Ecological Engineering; 2019, 20, 6; 225-235
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Adsorption and adsorption isotherm: application to corrosion inhibition studies of mild steel in 2 M HCl
Autorzy:: Abeng, F. E.
Idim, V. D.
Obono, O. E.
Magu, T. O.
Powiązania:: https://bibliotekanauki.pl/articles/1178372.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Adsorption isotherm
inhibition mechanism
mild steel
thermodynamic parameters
Opis:: Ethanollic extract of Phyllanthus amarus (EEPA) was tested as corrosion inhibitor for mild steel in 2 M HCl solution using gravimetric and gasometric methods at 303, 313, 323 K and 333 K. The results revealed that the corrosion rate increases with temperature and time. Addition of the concentration of ethanollic extract of Phyllanthus amarus to the corroding environment lowered the corrosion rate of mild steel and increased inhibition efficiency (IE %) of ethanollic extract. Inhibition efficiency was found to decreased with temperature. Fitting of the experimental data to the Arrhenius and Transition state equations revealed that the Organic constituents of the extract were physically adsorbed on the corroding surface of the steel and adsorption of ethanollic extract of Phyllanthus amarus (EEPA) on mild steel surface was found to obey the Langmuir adsorption isotherm and Freundlich adsorption isotherm and sign of the Gibb’s fee energy of the adsorption obtained suggested that inhibitor molecules have been spontaneously adsorbed onto the mild steel surface. Positive values obtained for enthalpy change indicated that the adsorption of inhibitor is endothermic.
Źródło:: World Scientific News; 2017, 77, 2; 298-313
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Generalized thermoelastic interactions due to an inclined load at a two-temperature half-space
Autorzy:: Abouelregal, A. E.
Zenkour, A. M.
Powiązania:: https://bibliotekanauki.pl/articles/279661.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: thermoelasticity
conductive and thermodynamic temperatures
half-space
inclined load
Opis:: The article presents a two-temperature theory to study the thermally insulated stress-free surface of a thermoelastic solid half-space due to an inclined load. The inclined load is a linear combination of a normal load and a tangential load. The normal mode analysis has been employed to solve the present problem. Variations of conductive and thermodynamic temperatures, displacements, and stresses distributions with the horizontal distance have been presented graphically. Some comparisons have been made to estimate the effects due to the two-temperature parameter and the inclination angle on the field quantities. Results of earlier works have been deduced from the present investigation as special cases.
Źródło:: Journal of Theoretical and Applied Mechanics; 2016, 54, 3; 827-838
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Modeling, exergy analysis and optimization of cement plant industry
Autorzy:: Abutorabi, Hossein
Kianpour, Ehsan
Powiązania:: https://bibliotekanauki.pl/articles/2106427.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: exergy
organic Rankine cycle
thermodynamic analysis
cement plant
egzergia
organiczny cykl Rankine'a
analiza termodynamiczna
cementownia
Opis:: This study investigates the recovery of wasted heat in the cement plant industries (Neka Cement Factory) in order to reduce the use of fossil fuels and greenhouse gas emissions. Cement is the most widely used man-made material. The global cement industry produces about 3.3 billion tons of cement annually. A lot of energy is needed to produce cement. About 200 kg of coal is used to produce each ton of cement. The cement industry also produces about five percent of the world's greenhouse gases. The method studied in this research is based on heat recovery from boilers installed at the outlet of a clinker cooler and a preheater in a cement factory. Due to the low temperature of the gases available, three different fluids, i.e. water, R134a and R245fa were considered as the operating fluids. Also, energy and exergy analyses are performed in a Rankin cycle and the selection of optimal parameters is considered by using genetic algorithm. The results of this study showed that water with optimized parameters leads to an increase in the production capacity from 5 to 9 MW. However, fluid R134a with optimized parameters leads to a 4% increase in exergy losses and it also increases the production capacity from 5 to 9 MW.
Źródło:: Journal of Mechanical and Energy Engineering; 2022, 6, 1; 55--66
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Investigation into the effect of bore/stroke ratio on a single cylinder two stroke opposed piston engin
Autorzy:: Alqahtani, A. M.
Wyszynski, M. L.
Mazuro, P.
Powiązania:: https://bibliotekanauki.pl/articles/245226.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: opposed-piston
two-stroke
AVL Boost
thermodynamic modelling
Opis:: Opposed-piston (OP) engine’s promising fuel efficiency has attracted the interest of automotive industry in the recent years. The opposed-piston two-stroke (OP2S) engine technology heightens this fuel efficiency benefit and offers advances in structure, power density and thermal efficiency whilst sustaining its lower cost and weight. Today thermodynamic modelling remains an indispensable and cost effective route in the development and optimisation of internal combustion engines (ICEs). To achieve this goal, the OP2S engine is simulated and validated against experimental results in AVL Boost™, which is hailed as one of the most reliable and advanced engine simulation tools. Detailed analyses of the piston dynamics, heat release, scavenging and heat transfers are highlighted in discrete sections of this paper. Having compared distinct heat release models, the Wiebe 2-Zone model emerged efficacious in replicating the heat release characteristics of the PAMAR™ engine. In comparing the numerical and experimental results, the simulation revealed minimal differences in peak pressure, peak temperature and maximum pressure raise rate, under ±2.5% differences for indicated power, IMEP, indicated thermal efficiency (ITE) and ISFC. Subsequently, confidence taken from the validated numerical model is then deployed to investigate the effect of stroke-to-bore (S/B) ratio on OP2S performance. Three combinations of S/B ratios (0.5, 1.25, and 1.69) with identical swept volume are analysed in this study. Utilisation of the validated model ensured the standardisation of intake, exhaust and the combustion systems in order to isolate the effects of S/B ratio. Results indicate that heat losses decrease with increasing S/B ratio because of the reduced surface area-to-volume in the cylinder. Consequently, an improvement in ITE and mechanical efficiency is observed with reduced ISFC for higher S/B ratios. A tendency of upsurge in combustion efficiency is also evident for higher S/B ratio due to reduced heat transfer near minimum volume of the combustion chamber.
Źródło:: Journal of KONES; 2016, 23, 2; 9-16
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Thermo-economic analysis and environmental aspects of absorption refrigeration unit operation onboard marine vehicles: RO- PAX vessel case study
Autorzy:: Ammar, N. R.
Sediek, I. S.
Powiązania:: https://bibliotekanauki.pl/articles/260242.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: ship emissions
IMO
lithium bromide-water ARU
thermodynamic analysis
economic and environmental analysis
Opis:: Marine diesel engines lose a huge amount of fuel heat content in the form of exhaust gas and jacket cooling water, especially onboard high-powered marine vehicles such as Ro-Pax ships. In this paper, the possibility of using the waste heat of marine diesel engines as a source of heat for air conditioning absorption system is investigated. The thermodynamic analysis, in addition to the environmental and economic analysis of the air condition absorption cycle operated with two heat sources using lithium bromide as absorbent, are performed using the Engineering Equation Solver (EES) software. The last 10 years have seen a steady growth in the passenger ferry and Ro-Pax market, with particularly strong growth in passenger numbers. As a case study, a Ro-Pax vessel operating in the Red Sea area is considered, regarding the profitability of using air conditioning absorption system. The results show specific economic benefits of the jacket cooling water operated absorption refrigeration unit (ARU) over the exhaust gas operated unit, with annual costs of capital money recovery of 51,870 $/year and 54,836 $/year, respectively. Environmentally, applying an ARU machine during cruising will reduce fuel consumption by 104 ton/year. This, in turn, will result in reducing NOx, SOx, and CO2 emissions with cost-effectiveness of 7.73 $/kg, 20.39 $/kg, and 0.13 $/kg, respectively.
Źródło:: Polish Maritime Research; 2018, 3; 94-103
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Constructional changes of pneumopercussion machines for improving their efficiency
Autorzy:: Antonchik, Volodymyr
Zabolotnyi, Kostiantyn
Hankevich, Valentyn
Maltseva, Vira
Kuts, Oleksandra
Dyczko, Artur
Powiązania:: https://bibliotekanauki.pl/articles/27324346.pdf
Data publikacji:: 2022
Wydawca:: Instytut Techniki Górniczej KOMAG
Tematy:: pneumopercussion machines
thermodynamic processes
hammer
compressed air
Opis:: Pneumopercussion machines (pneumatic impact machines) are widely used in all areas of human activity. Also, they are widely used in the mining industry. Unfortunately, their operation is characterized by a low efficiency of compressed air energy usage. In some cases, this level of efficiency is calculated as 15-20%. Such a situation increases the cost of drilling operations significantly. In this article, due to an implementation of a new construction of the equipment, the efficiency of the pneumopercussion machines was increased. This problem is solved by combining the most effective thermodynamic processes of compressed air in the working chambers of machines. Also, a new technical solution for the construction of pneumopercussion machines is suggested by the Authors. The proposed new design is realized by a combination of the most effective thermodynamic processes in the chambers of pneumatic impact machines. A new pneumatic hammer is presented, which allows to reduce compressed air consumption twice during an operation on the surface (in comparison with hammers available on the market). The operation of pneumopercussion machines and the method of calculating geometric parameters are described. The economic performance of the equipment confirms the correctness of the proposed technological solutions.
Źródło:: Mining Machines; 2022, 40, 4; 206--215
2719-3306
Pojawia się w:: Mining Machines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Failure of gas turbine cone burner by carburization
Autorzy:: Ardy, H.
Putra, S.
Hardianto, T.
Powiązania:: https://bibliotekanauki.pl/articles/247322.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: gas turbine
cone burner
Hastelloy-X
carburization
microstructure
carbide
thermodynamic simulation
Opis:: Gas turbine for a power plant has 72 pieces of cone burner in its combustion chamber. High-speed diesel oil (HSD) is use as fuel to produce 130 MW of power at 3,000 rpm. The maximum temperature at the turbine inlet is estimated about 1087 centigrade and at the outlet is between 400-540oC. Sixty percent of the cone burner failed repetitively at one side of the tip-end after 6,000 hours of service. The refurbished cone burner has to be replaced by a new one after 18,000 of service-hours. The cone burner material is cast Hastelloy-X (nickel based alloys). Metallurgical analyses by microstructural observation using optical and scanning electron microscopes, and energy dispersive spectroscope have been performed to observe the change in burner microstructure. Thermodynamics analysis has been performed to obtain temperature distribution around the failed section. Two failed cone burners have been examined; cone burner that has not been repaired, and that has been repaired twice. Thermodynamics analysis result shown that the temperature around the failed section is between 897 to 1087 centigrade. Microstructure of the good part, far from the failed section, consists of cast structure of austenite matrix and fine carbide particles. Severe carbide precipitation and growth was observed on the failed section even the nominal carbon content in material is only 0.10 percent (max.). Severe carbide precipitation occurred because of carbon ingress from the environment (carburization) which combines with carbide forming elements in material (chromium, molybdenum, and tungsten). As a result, the corrosion and oxidation resistance of material decreased significantly after long time exposure at high temperature that led to oxidation, thinning, and failure of the cone burner tip. Failure only localized on one side of the tip-edge, therefore refurbishment by welding and coating can be performed to extend the life cycle of cone burner. The current examination results shows that the replacement cycle is not only limited to 18,000 hours but can also be extended to 48,000 hours.
Źródło:: Journal of KONES; 2012, 19, 2; 9-16
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Thermodynamic Analysis and Mathematic Modeling of Waste Sludge from Drinking Water Treatment Plants
Autorzy:: Azeddine, Fantasse
El Khadir, Lakhal
Ali, Idlimam
Powiązania:: https://bibliotekanauki.pl/articles/2026746.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: drinking water sludge
sludge valorization
wastewater management
thermodynamic analysis
isosteric heat
Opis:: Water treatment annually produces a huge amount of Drinking Water Treatment Sludge (DWTS) wastes. The latter causes environmental problems in Morocco in terms of energy and pollution. Therefore, cost-effective and eco-friendly solutions for managing them should be proposed in order to reduce the frequency of storage along with transportation costs. In this paper, a thermodynamic analysis of DWTS wastes was conducted based on the isosteric heat and compensation theory. Different results concerning the mineralogical identification of sludges were established. Findings revealed that the by-product of water purification was mainly composed of aluminum, silica and iron hydroxides, with pH varying between 6.23 and 6.85. The suspended matter was between 18.3 and 19.6 m/l. The volatile matter of the three sludge samples was between 18 and 21%. The measured dry matter content was between 13.41 and 15.23%. The experimental tests were performed under temperatures from 45 and 60 °C, the experimental data of the sorption curves were fitted by using several models of correlation. Furthermore, the analysis showed that the Peleg’s model perfectly described the isotherm curves in the activities ranging from 0 to 90%. The net isosteric heats of sorption of the three hydroxide sludge from the Moroccan treatment station: $S_k$, $S_m$ and $S_s$, were determined for desorption and adsorption. Moreover, it was revealed that the equilibrium water content rising lead contributed to the reduction of the net isosteric heat and the entropy of sorption. Finally, the enthalpy-entropy compensation showed that the sorption mechanism involved was enthalpy driven.
Źródło:: Journal of Ecological Engineering; 2022, 23, 2; 140-149
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Thermodynamic analysis of compressed air energy storage working conditions
Analiza termodynamiczna pracy układu CAES
Autorzy:: Badyda, K.
Milewski, J.
Powiązania:: https://bibliotekanauki.pl/articles/172932.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: CAES
elektrownia wiatrowa
odnawialne źródła energii
magazynowanie energii
analiza termodynamiczna
wind power plant
renewable energy sources
energy storage
thermodynamic analysis
Opis:: The compressed air energy storage (CAES) technology and electricity generation by this system are described. General performances and possible system efficiency definitions of those kinds of systems are indicated. Hybrid systems which consist of CAES and other renewable technologies (RT), e.g., wind turbines, are presented. A possibility of CAES-RT location in Poland is indicated. Dynamic mathematical model of CAES is presented; using this model the results for compressing and expanding operating modes are obtained.
Przedstawiono technologię CAES (ang. compressed air energy storage) oraz możliwości generowania energii elektrycznej z jej udziałem . Pokazano głównie parametry eksploatacyjne oraz możliwe tutaj do zastosowania definicje sprawności takich układów. Występują tutaj możliwości budowy układów hybrydowych CAES + technologie odnawialne, takie jak np. elektrownie wiatrowe. Zaproponowano potencjalne lokalizacje takich hybrydowych rozwiązań. Wyniki obliczeń oparto o model dynamiczny układu CAES - ładowanie i rozładowanie kawerny.
Źródło:: Archiwum Energetyki; 2012, 42, 1; 53-68
0066-684X
Pojawia się w:: Archiwum Energetyki
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Thermodynamic Phase Diagram and Phonon stability, Electronic and Optical Properties of FeVSb: A DFT study
Autorzy:: Bagheri, A.
Boochani, A.
Masharian, S. R.
Jafarpour, F. H.
Powiązania:: https://bibliotekanauki.pl/articles/2203753.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: DFT
thermodynamic phase diagram
phonon
electronic properties
optical properties
Opis:: Mechanical, electronic, thermodynamic phase diagram and optical properties of the FeVSb half-Heusler have been studied based on the density functional theory (DFT) framework. Studies have shown that this structure in the MgAgAs-type phase has static and dynamic mechanical stability with high thermodynamic phase consistency. Electronic calculations showed that this compound is a p-type semiconductor with an indirect energy gap of 0.39 eV. This compound’s optical response occurs in the infrared, visible regions, and at higher energies its dielectric sign is negative. The Plasmon oscillations have occurred in 20 eV, and its refraction index shifts to zero in 18 eV.
Źródło:: Archives of Metallurgy and Materials; 2023, 68, 1; 331--338
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Simulation tests of a VCR engine as a propulsion unit in rail vehicles
Badania symulacyjne silnika VCR jako jednostki napędowej w pojazdach szynowych
Autorzy:: Bajerlein, Maciej
Urbański, Patryk
Daszkiewicz, Paweł
Powiązania:: https://bibliotekanauki.pl/articles/33352714.pdf
Data publikacji:: 2020
Wydawca:: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
Tematy:: VCR engine
simulation studies
power unit
rail vehicle
piston path
Top Dead Center
TDC
thermodynamic analysis
silnik VCR
badania symulacyjne
jednostka napędowa
pojazd szynowy
droga tłoka
Górne Martwe Położenie
GMP
analiza termodynamiczna
Opis:: The paper presents the possibility of using a VCR engine as a driving unit of a generating set in rail vehicles. Thermodynamic analyzes of the engine were also performed. For the purposes of the research, the piston path was generated in the dynamic simulation in Solidworks to study the processes occurring during the combustion process. This path was used to simulate the AVL Fire program for the same initial conditions. Different variants of the engine cam control with the same compression ratio were compared. The article analyzed the moment and the period of time that the piston remains in the Upper Dead Center (TDC).
W ramach pracy przedstawiono możliwość zastosowania silnika VCR jako jednostki napędowej zespołu prądotwórczego w pojazdach szynowych. Dokonano również analiz termodynamicznych silnika. Na potrzeby badań wygenerowano drogę tłoka w symulacji dynamicznej w programie Solidworks do badania procesów zachodzących podczas procesu spalania. Droga ta została wykorzystana do przeprowadzenia symulacji w programie AVL Fire dla jednakowych warunków początkowych. Porównane zostały różne warianty wysterowania krzywki silnika przy jednakowym stopniu sprężania. W rozpatrywanym artykule analizowano moment oraz okres czasu jaki tłok pozostaje w Górnym Martwym Położeniu (GMP).
Źródło:: Rail Vehicles/Pojazdy Szynowe; 2020, 4; 33-44
0138-0370
2719-9630
Pojawia się w:: Rail Vehicles/Pojazdy Szynowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Thermodynamic assessment on the integration of thermo-electric modules in a wood fireplace
Autorzy:: Baldini, Andrea
Cerofolini, Luca
Fiaschi, Daniele
Manfrida, Giampaolo
Talluri, Lorenzo
Powiązania:: https://bibliotekanauki.pl/articles/395933.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: stove-fireplaces
thermoelectric module
thermodynamic assessment
combustion of biomass
renewable sources
piec kominkowy
moduł termoelektryczny
ocena termodynamiczna
spalanie biomasy
źródła odnawialne
Opis:: The growing demand for electricity produced from renewable sources and the development of new technologies for the combustion of biomass, arose a growing interest on the possible coupling of thermoelectric modules with stove-fireplaces. The current thermoelectric generators have a solid structure, do not produce noise, do not require maintenance and can be used for the recovery of waste heat or excess, at the same time they hold a very low conversion efficiency and they need an adequate cooling system. Nevertheless, they still hold a cost, which is still too high to make them attractive. Nonetheless, if the modules are applied to a heat source which otherwise would be wasted, the attractiveness of the solution certainly rises. In this study, a thermodynamic analysis of a stove-fireplace is presented, considering both combustion process and the flame – walls heat transfer of the. A design solution for a concentrator device to funnel the wasted heat from the fireplace to the thermo-electric modules is also presented.
Źródło:: Civil and Environmental Engineering Reports; 2019, 29, 4; 218-235
2080-5187
2450-8594
Pojawia się w:: Civil and Environmental Engineering Reports
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Characteristics modeling for supercritical circulating fluidized bed boiler working in oxy-combustion technology
Autorzy:: Balicki, A.
Bartela, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/240453.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: thermodynamic analysis
oxy-combustion
supercritical CFB boiler
analiza termodynamiczna
oksyspalanie
nadkrytyczny kocioł CFB
Opis:: Among the technologies which allow to reduce greenhouse gas emission, mainly carbon dioxide, special attention deserves the idea of 'zero-emission' technology based on boilers working in oxy-combustion technology. In the paper the results of analyses of the influence of changing two quantities, namely oxygen share in oxidant produced in the air separation unit, and oxygen share in oxidant supplied to the furnace chamber on the selected characteristics of a steam boiler including the degree of exhaust gas recirculation, boiler efficiency and adiabatic flame temperature, was examined. Due to the possibility of the integration of boiler model with carbon dioxide capture, separation and storage installation, the subject of the analysis was also to determine composition of the flue gas at the outlet of a moisture condensation installation. Required calculations were made using a model of a supercritical circulating fluidized bed boiler working in oxy-combustion technology, which was built in a commercial software and in-house codes.
Źródło:: Archives of Thermodynamics; 2014, 35, 2; 51-63
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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