محرك ستيرلنگ
Alpha type Stirling engine. The expansion cylinder (red) is maintained at a high temperature while the compression cylinder (blue) is cooled. The passage between the two cylinders contains the regenerator.
محرك ستيرلينگ يعهد أيضا بمحرك الهواء الساخن ، اخترعه روبرت ستيرلنگ عام 1816 بتحسينه من تصميمات سابقة واخرج أول براءة إختراع به.
وصف وظيفي
المكونات الرئيسية
Cut-away diagram of a rhombic drive beta configuration Stirling engine design:
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مصدر الحرارة
Point focus parabolic mirror with Stirling engine at its center and its solar tracker at Plataforma Solar de Almería (PSA) in Spain
الأشكال
محرك سترلنج طراز ألفا
عمل محرك سترلنج طراز ألفا
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1. Most of the working gas is in contact with the hot cylinder walls, it has been heated and expansion has pushed the cold piston to the bottom of its travel in the cylinder. The expansion continues in the cold cylinder, which is 90° behind the hot piston in its cycle, extracting more work from the hot gas. |
2. The gas is now at its maximum volume. The hot cylinder piston begins to move most of the gas into the cold cylinder, where it cools and the pressure drops. |
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3. Almost all the gas is now in the cold cylinder and cooling continues. The cold piston, powered by flywheel momentum (or other piston pairs on the same shaft) compresses the remaining part of the gas. |
4. The gas reaches its minimum volume, and it will now expand in the hot cylinder where it will be heated once more, driving the hot piston in its power stroke. |
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The complete alpha type Stirling cycle | |||
محرك سترلنج طراز بيتا
عمل محرك سترلنج طراز بيتا
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1. Power piston (dark grey) has compressed the gas, the displacer piston (light grey) has moved so that most of the gas is adjacent to the hot heat exchanger. |
2. The heated gas increases in pressure and pushes the power piston to the farthest limit of the power stroke. |
3. The displacer piston now moves, shunting the gas to the cold end of the cylinder. |
4. The cooled gas is now compressed by the flywheel momentum. This takes less energy, since when it is cooled its pressure dropped. |
The complete beta type Stirling cycle | |||
سترلنگ گاما
محركات سترلنگ حرة المكبس
Various Free-Piston Stirling Configurations... F."free cylinder", G. Fluidyne, H. "double-acting" Stirling (typically أربعة cylinders)
تاريخ
Illustration to Robert Stirling's 1816 patent application of the air engine design which later came to be known as the Stirling Engine
أواخر القرن التاسع عشر
A typical late nineteenth/early twentieth century water pumping engine by the Rider-Ericsson Engine Company
إحياؤه في القرن العشرين
Philips MP1002CA Stirling generator of 1951
النظرية
يمكن تفسير كيفية عمل محرك ستيرلينگ إستنادا إلى الترموديناميكا التي تصف عملية الستيرلينغ (Stirling Process) على النحوالتالي:
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التطبيقات
نطقب:Split section
A desktop alpha Stirling engine. The working fluid in this engine is air. The hot heat exchange is the glass cylinder on the right, and the cold heat exchanger is the finned cylinder on the top. This engine uses a small alcohol burner (bottom right) as a heat source
محركات السيارات
السيارات الكهربائية
محركات الطائرات
المحركات ذات الفرق الحراري المنخفض
A low temperature difference Stirling Engine shown here running on the heat from a warm hand
معرض الصور
Preserved examples of antique Rider hot air engines - an alpha configuration Stirling
انظر أيضاً
- Thermomechanical generator
- Beale Number
- Cogeneration
- West Number
- Schmidt number
- Fluidyne engine
- Stirling radioisotope generator
- Relative cost of electricity generated by different sources
- Distributed generation
وصلات خارجية
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مشاع الفهم فيه ميديا متعلقة بموضوع Stirling engine. |
الهامش
وصلات خارجية
- محرك ستيرلنگ at the Open Directory Project
- I. Urieli (2008). Stirling Cycle Machine Analysis 2008 Winter Syllabus
- Simple Performance Prediction Method for Stirling Engine
