Temat: Stirling engine - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Notes on the Operation of the Stirling Engine
Autorzy:: Mysłowski, J.
Tematy:: Stirling engine; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Powiązania:: https://bibliotekanauki.pl/articles/411223.pdf Link otwiera się w nowym oknie
Opis:: The problem of using the Stirling engine for traction purposes has attracted researchers and constructors for many years. Unfortunately, the current state of the art and its structural properties do not allow for its use on a wider scale. apart from the prototype test vehicles
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of properties of a laboratory model of a Gamma Stirling engine
Autorzy:: Fekieta, D.
Tematy:: Stirling engine
efficiency
mechanical power; Pokaż więcej
Wydawca:: Fundacja na Rzecz Młodych Naukowców
Powiązania:: https://bibliotekanauki.pl/articles/115503.pdf Link otwiera się w nowym oknie
Opis:: The main subject of the article is the analysis of the characteristics of a Stirling engine. The article presents a general principle of operation of the engine, its basic types and properties. The paper contains a description of the construction of a laboratory model of the engine and the results of the experimental studies. The basic criterion which guided the designing and building the engine was to maximize the energy density, efficiency, while minimizing the cost of materials – to this end the engine has been designed and constructed so as to allow replacement of particular components. The conducted experimental studies have shown that the best parameters of the engine has a cylinder made of iron, a steel flywheel and a steel radiator. The brake efficiency of the engine for this configuration was 16%.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Proposal of the new concept of the Stirling engine
Autorzy:: Jaśkiewicz, M.
Sadkowski, W.
Marciniewski, M.
Olejnik, K.
Stokłosa, J.
Tematy:: Stirling engine
displacer
cam mechanism
regenerator; Pokaż więcej
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Powiązania:: https://bibliotekanauki.pl/articles/360347.pdf Link otwiera się w nowym oknie
Opis:: The article sets forth the new concept of structure of the Stirling engine. Specific realizations of that idea have been discussed. The modification consists in replacing the crank system with the cam mechanism. As a result, the stages of heating and cooling of working gas are longer and transitory stages are shorter. The aim is to obtain higher efficiency in relation to the already existing solutions and to simplify the engine structure. The visualisation of its structure and the principle of operation have been presented. The proper shaping of the cam mechanism allowed for the change of the significant parameters influencing its efficiency. The use of such type of engine allows for the use of heat energy lost in many technological processes and installations.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Application of Stirling engine type alpha powered by the recovery energy on vessels
Autorzy:: Kropiwnicki, Jacek
Tematy:: Stirling engine
recovery energy
efficiency
regenerator; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/260612.pdf Link otwiera się w nowym oknie
Opis:: The Stirling engine is a device in which thermal energy is transformed into mechanical energy without any contact between the heat carrier and the working gas enclosed in the engine. The mentioned feature makes this type of engine very attractive for the use of the recovery energy taken from other heat devices. One of the potential applications of Stirling engines is the use of thermal energy generated in the ship’s engine room for producing electricity. The work presents the concept of the Stirling engine type alpha powered by the recovery energy. The model of Stirling engine developed in this work allows a quantitative assessment of the impact of the design features of the engine, primarily the heat exchange surfaces and the volume of control spaces, on the achieved efficiency and power of the engine. Using an iterative procedure, Stirling engine simulation tests were carried out taking into account the variable structural features of the system. The influence of the size of the heater and the cooler, as well as the effectiveness of the regenerator and the temperature of the heat source on the efficiency and power produced by the Stirling engine have been presented.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: New ways of renewable sources utilization for electricity production
Autorzy:: Durčanský, P.
Pilát, P.
Nosek, R.
Jandačka, J.
Tematy:: Stirling engine
internal combustion engine
biomass
boiler
concentrating solar collector; Pokaż więcej
Wydawca:: Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Powiązania:: https://bibliotekanauki.pl/articles/402157.pdf Link otwiera się w nowym oknie
Opis:: Nowadays, different solutions for increasing energy production are investigated in the world. One of the ways is utilization of renewable energy sources in cogeneration devices - combined production of electricity and heat in one device, with a high overall efficiency. The article deals with principle of hot-air engine, its basic division and use in combined production of heat and electricity from biomass. The basic principle of engine is conversion of heat into mechanical energy, which is subsequently used for production of electricity. In the contribution is presented Stirling engine, which is driven by thermal energy from a concentrating solar collector and from biomass boiler.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Wykorzystanie silnika Stirlinga w pojazdach samochodowych
Using Stirling engine in a car vehicles
Autorzy:: Zdanowicz, A.
Chojnacki, J.
Tematy:: silnik Stirlinga
pojazdy samochodowe
Stirling engine
motor vehicles; Pokaż więcej
Wydawca:: Instytut Naukowo-Wydawniczy "SPATIUM"
Powiązania:: https://bibliotekanauki.pl/articles/316130.pdf Link otwiera się w nowym oknie
Opis:: Przedstawiono konstrukcje silnika Stirlinga i sposoby dotyczące wykorzystania ich w pojazdach samochodowych. Opisane zostały badania nad wykorzystaniem silnika Stirlinga do bezpośredniego napędu samochodów oraz jako jednostki napędowej w pojazdzie hybrydowym. Omówiono podstawowe zalety i wady wykorzystania silnika Stirlinga w pojazdach oraz jego możliwości do przetwarzania ciepła odpadowego pochodzqacego z silników z wewnętrznym spalaniem na energię elektryczną.
In the paper the Stirling engine constructions and methods for use them in car vehicles are presented. There were described research on the use of the Stirling engine for direct drive of cars and the hybrid drive. The main advantages and disadvantages of the Stirling engine use in vehicles and their ability to convert waste heat from internal combustion engines into electricity are discussed.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Koncepcja tłokowego silnika o spalaniu wewnętrznym z regeneracją ciepła
Concept of internal combustion engine with heat regeneration
Autorzy:: Łutowicz, M.
Cuper-Przybylska, D.
Tematy:: silnik spalinowy
silnik Stirlinga
regeneracja ciepła
engine
Stirling engine
heat recovery; Pokaż więcej
Wydawca:: Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
Powiązania:: https://bibliotekanauki.pl/articles/222447.pdf Link otwiera się w nowym oknie
Opis:: W artykule omówiono koncepcję silnika, który będzie realizował obieg zbliżony do obiegu silnika Stirlinga w układzie β, w którym dostarczenie ciepła nastąpi poprzez spalanie wewnętrzne. Umożliwi to uzyskanie w impulsie temperatury do 2500 K, podczas gdy w silniku Stirlinga czynnik roboczy ogrzewa się tylko do temperatury ścianek wymiennika ciepła i rzadko przekracza temperaturę 1000 K. Wyższa temperatura czynnika roboczego zapewni wyższą sprawność silnika. Spaliny po oddaniu ciepła do ścianek komory spalania i regeneratora zostaną zastąpione zimnym powietrzem. Zmagazynowane ciepło zostanie wykorzystane do podgrzania sprężonego powietrza w następnym cyklu. Zapewni to wyższą sprawność niż w silniku Diesla.
The paper discusses the concept of an engine that will perform circuit similar to the Stirling engine cycle in the system β, which will provide heat by burning inside. This will allow reaching temperature up to 2500 K in impulse, while in a Stirling engine the working medium is heated only to the temperature of the walls of the heat exchanger and rarely exceeds the temperature of 1000 K. The higher temperature of the working medium will provide higher efficiency. After transferring the heat to the walls of the combustion chamber and regenerator the exhaust gases will be replaced by cold air. The stored heat is used to heat the compressed air in the next cycle. This will ensure higher efficiency than the Diesel engine.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Bench testing and simulation model of a cogeneration system with a stirling engine
Autorzy:: Chmielewski, A.
Gumiński, R.
Lubikowski, K.
Radkowski, S.
Szulim, P.
Tematy:: Stirling engine
Alpha
Simulink
Sankey diagram
helium and nitrogen
cogeneration; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/242327.pdf Link otwiera się w nowym oknie
Opis:: Cogeneration systems using a Stirling engine [2] are currently being developed and promoted by the European Union [1]. On the other hand, the EU climatic package obligates Polish energy producers to buy 100% CO2 emission rights from 2020 onwards. At that time, according to the experts a ton of CO2 could reach the price of 63.5 Euro. Attention is drawn to the fact that it is only then that nuclear power plants will become profitable, in the same way as wind power plants. This could result in substantial growth of energy prices, both for the economy and for households [3]. The paper presents the experimental research of a cogeneration system with a one-way Alpha type Stirling engine. The impact of the upper heat source and the type of working gas (helium and nitrogen) on the load capacity of the cogeneration system was studied. Based on a Sankey diagram, the power spread of the cogeneration system was analysed. On the basis of experimental research, a model was created of a cogeneration system consisting of the following submodels: Stirling engine of the second order, belt transmission, electric motor and an electrochemical battery. The Stirling engine was installed in a testbed, in the mechatronic lab at the Faculty of Automotive and Construction Machinery Engineering (SIMR) of Warsaw University of Technology. Furthermore, the impact of regenerator efficiency on the efficiency of the Stirling Engine was examined, which in turns impacts the efficiency of the entire cogeneration system.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Cold Energy Utilization by Stirling Engine
Autorzy:: Wiśniewski, Krzysztof
Grzebielec, Andrzej
Tematy:: cryogenics
cold energy
Stirling engine
kriogenika
zimna energia
silnik Stirlinga; Pokaż więcej
Wydawca:: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Powiązania:: https://bibliotekanauki.pl/articles/2195733.pdf Link otwiera się w nowym oknie
Opis:: Liquefied natural gas (LNG) will play an important role in the World, as evidenced by the constantly growing LNG market. One of its branches is the small-scale LNG market, which includes supplies to satellite gas networks, factories, or as fuel for car and bunker, fuel for vessels. LNG is mainly redistributed by trucks and then regassify in atmospheric air vaporizes (AAV), where the gas is heated by atmospheric air and the cold is thereby lost. Effective utilization of this energy, will allow the LNG technology to be more competitive, as well as to recover some of the energy lost in the liquefaction process. The purpose of this article is to explore the possibility of utilizing the cold energy from the LNG regasification process to drive a Stirling engine. For the aim of this analysis, an analytical method were used - Schmidt analysis, which assumes an isothermal processes of gas expansion and compression inside the engine, as well as excellent regenerator performance. Helium was used as a working factor. It was assumed, that the engine was arranged in accordance with alpha geometry. Average monthly air temperatures and average hourly temperatures for the coldest and warmest day of the year were applied to the model using macros and Excel worksheets. Those temperatures are the average from many years for Warsaw. Based on the applied data, the amount of regassified LNG, power of the entire system, indicated engine power, engine and system efficiency, as well as temperature in cylinders (and thus in heat exchangers) were calculated. The results showed the reasonability of using LNG as the lower heat source, and atmospheric air as the upper heat source. The system generates sufficient power, in all conditions, to meet the system energy consumption requirements i.e. fan. It produces significant excess amount of energy, which varies on the external conditions, i.e. the air temperature. In addition, the system meets the requirements for regassify amount of LNG at the end user.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Design of dual flywheels with connecting rods for gamma-type Stirling engine
Autorzy:: Lekchaum, S.
Locharoenrat, K.
Tematy:: Stirling engine
Stirling cycle
flywheels
connecting rod
silnik Stirlinga
cykl Stirlinga
koła zamachowe
korbowód; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/200723.pdf Link otwiera się w nowym oknie
Opis:: A gamma-type Stirling engine, based on a dual flywheels’ concept, was designed and fabricated. Optimized design of the engine, with connecting rods, was introduced to achieve a steady state of the Stirling engine cycle. Performances of the engine were therefore presented in terms of piston motion, inertia force, angular speed, pressure-volume diagram and temperature difference. It was found that optimum length of 45 mm from the connecting rod was able to reach the maximum output mechanical speed of 738 rpm at the maximum inertia force of 0.5 N. The engine offered thermal efficiency of 46.15% and total output power of 1.21 W under the temperature difference of 267 K. In the future, this design is expected to prove useful for applications in portable generators.
Dostawca treści:: Biblioteka Nauki

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