• 대한기계학회논문집B
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• 제29권4호
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• pp.519-525
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• 2005

The operation of a low temperature differential model stirling engine is tested and analyzed by Simple analysis model. The heat transfer coefficients are required for Simple analysis, and the coefficients are determined by coinciding the P-V diagram of analysis to the diagram of experiment. The results show a good agreement. However the heat transfer coefficients are quite high by comparison with the ordinary forced convective heat transfer cases.

• 한국군사과학기술학회지
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• 제24권4호
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• pp.418-425
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• 2021

Submarines are weapons systems that have been proven to be useful in battle since World War I and have continued to improve the efficiency of propulsion systems in order to be used efficiently on the battlefield. In particular, countries that unable to utilize nuclear propulsion systems make efforts to increase the efficiency of Air Independent Propulsion systems, and typical examples are fuel cells, Stirling engines and MESMA. It is also expected that the development of new propulsion systems such as hydrogen-reformer fuel cells, metal-air fuel cell and direct combustion propulsion systems will continue, so the characteristics of these will be examined and the performance based on the published data be checked in this thesis.

• Journal of Advanced Marine Engineering and Technology
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• 제39권4호
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• pp.405-411
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• 2015

최근 저탄소 녹색성장 및 그린에너지 개발 정책에 힘입어 외연기관의 일종으로 스털링엔진에 대한 관심이 고조되고 있다. 스털링엔진은 크게 ${\alpha}$, ${\beta}$, ${\gamma}$-type의 3가지 방식으로 구분되어지며 그 중 ${\gamma}$-type 엔진의 설계가 용이하고 다양한 적용이 가능하다는 특징이 있음에도 실린더와 크랭크간의 접속거리 문제로 인하여 ${\alpha}$, ${\beta}$-type에 비하여 용적을 크게 차지하는 문제가 있었다. 이를 해결하기 위한 한 방안으로 주로 ${\alpha}$-type에 적용하는 Yoke crank를 응용하면 용적을 줄임과 동시에 실린더의 병렬화에도 유리하다. 금번 연구에서는 기존의 Ross Yoke crank 설계기법에서 개선하여 ${\gamma}$-type 스털링엔진의 Yoke crank 설계를 더욱 단순하고 효율적으로 적용할 수 있는 방법을 제시하였다.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2000년도 춘계학술대회논문집B
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• pp.199-204
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• 2000

A low temperature differential model stirling engine is manufactured, and its operation characteristics are measured and analyzed by SIMPLE analysis model, in which heat transfer processes are simply considered. The heat transfer coefficients between working fluid and heat sources in the analysis are estimated by comparing the P-V diagrams by experiment and by analysis. This result may be very useful for further design and manufacture of model Stilting engines as well as real engines because it provides a comparatively correct predictions of the operation conditions and power output. It will be also conveniently used as an educational material for mechanical engineering students because it can be a nice example of optimal design process to decide the phase angle and compression ratio of engine design with a simple but realistic simulation.

• 한국자원리싸이클링학회:학술대회논문집
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• 한국자원리싸이클링학회 2006년도 고분자리싸이클링 심포지엄
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• pp.3-12
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• 2006

The main feature of these total technologies is that we can constitute the optimum treatment scheme fitting to the property of wastes, amount of wastes and energy requirement. For high moisture content wastes or biomass resources, high pressure steam process (MMCS) for crush, dry and deodorize wastes to produce high quality fertilizer of fuel is most appropriate. For dry or semi-dry solid wastes, the STAR-MEET system can be applied to produce low-BTU gases for power generation using duel fueled diesel engines of Stirling engines, and the REPRES and HyPR-MEET systems can be applied to produce hydrogen rich medium-BTU gas. For waste plastics and oils, liquefaction technology is best fit to produce light oil or kerosene equivalent fuel oils. These total technologies are completely different from the existent waste treatment technologies based on land-filling or incineration, and are expected to disseminate all over the world in the near future.

• 한국태양에너지학회 논문집
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• 제37권2호
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• pp.59-66
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• 2017

This paper compares the output power of different types of small Stirling engines in conjunction with the utilization of low grade thermal energy. A series of experimental measurements were performed to assess the output power of each engine under different conditions of the temperature difference between the hot and cold ends as well as applied weight. Results are presented in terms of torque and output power per heat transfer area. Among tested, the MM-7 engine produced the highest power of 4.455mW ($321mW/m^2$) under a temperature difference of $40^{\circ}C$.

• Current Research on Agriculture and Life Sciences
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• 제9권
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• pp.87-94
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• 1991

Stirling기관(機關)의 성능(性能) 예측(豫測)을 위한 1차원해석방법(次元解析方法)으로서 지금까지는 온도(溫度)의 기준(基準)으로 팽창(膨脹) 및 압축공간(壓縮空間)의 작동유체(作動流體)의 온도(溫度)를 각각(各各) 가열기(加熱器)와 냉각기내(冷却器內)의 작동유체(作動流體)의 온도(溫度)와 동일(同一)하게 취급(取扱)하였으나 실제로는 등온팽창(等溫膨脹), 등온압축(等溫壓縮)의 변화(變化)를 수행시킬 수 없으므로 팽창공간내(膨脹空間內)의 온도(溫度)는 가열기내(加熱器內)의 온도(溫度)보다 낮고, 압축공간내(壓縮空間內)의 온도(溫度)는 냉각기내(冷却器內)의 온도(溫度)보다 높기 때문에 실제(實際)와 부합(符合)되지 않는 점이 있었다. 따라서 본(本) 연구(硏究)에서는 팽창(膨脹) 및 압축공간내(壓縮空間內)의 대표온도(代表溫度)를 팽창공간내(膨脹空間內)의 온도(溫度) 저하(低下)와 압축공간내(壓縮空間內)의 온도(溫度) 상승(上昇)을 고려하여 성능(性能)을 평가(評價)한 결과(結果), 팽창공간내(膨脹空間內)의 작동유체(作動流體) 온도(溫度)를 가열기(加熱器)와 가열기(加熱器)부터 기관압축비(機關壓縮比) ${\varepsilon}$에 상당하는 단열압축(斷熱壓縮)을 했을 때의 온도(溫度)와의 평균온도(平均溫度)로 하고 압축공간내(壓縮空間內)의 작동유체(作動流體) 온도(溫度)를 냉각기(冷却期)와 냉각기(冷却期)로부터 기관압축비(機關壓縮比) ${\varepsilon}$에 상당하는 단열압축(斷熱壓縮)했을때의 온도(溫度)와의 평균온도(平均溫度)로 선정(選定)한 경우가 팽창공간내(膨脹空間內)의 온도저하(溫度低下)만을 고려하고, 압축공간(壓縮空間)의 온도(溫度)는 냉각기내(冷却期內)의 온도(溫度)와 동일(同一)하게 취급(取扱)했을 경우, 그리고 팽창공간(膨脹空間)과 압축공간내(壓縮空間內)의 작동유체(作動流體)의 온도(溫度)를 각각(各各) 가열기(加熱器)와 냉각기내(冷却器內)의 작동유체(作動流體)의 온도(溫度)와 동일(同一)하게 취급(取扱)하였을 경우보다 실측치(實測値)에 더 접근(接近)하였다.