Shadowing Practice: Understanding Height and Clearance: Critical Design Parameters for Utility-Scale Solar Racking - Learn English Speaking with Video
Ders oluşturuluyor...
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Let's examine another key term in the design parameters for the racking, and that is minimum clearance and maximum height.
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You can see here what those parameters look like for each of our two main racking types.
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With fixed tilt, it's a pretty easy concept to grasp since everything stays put.
4
For tracker systems, however, you have a moving part
5
which both decreases the clearance and increases the system height as it moves throughout its daily cycle.
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So now you'll need to factor in the height of the system at its maximum rotation or height.
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One key way that ground clearance and maximum height are varied or adjusted is by changing what's called post reveal.
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Reveal is the distance from the ground to the top of the post, and it's a key consideration for racking design.
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Let's start with clearance.
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Typically, the minimum clearance will be determined by the project owner if they have a technical specification.
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And then designers also need to look at maximum snow depths
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and vegetation control plans to determine how much clearance the racking needs to maintain above grade at maximum tilt.
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Note, I have a tracker system shown here, but these factors apply for fixed tilt as well
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when looking at a maximum height there's also the wind loading to consider as modules are tilted higher
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and higher or are further off the ground they're exposed to higher wind loading
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and this may either cause foundations to be deeper or heavier steel
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or may just simply exceed the mechanical rating of the modules
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or racking this is really a limitation that will be calculated by the racking vendor
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but just something to be aware of especially in areas with high wind speeds
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to determine the required clearance
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and maximum height of a tracker system you'll need to know
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the tracker rotation angle tracker rotation angles vary by manufacturer
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and are typically listed on the data sheets for the most part these will be between 45 degrees
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and 60 degrees with some manufacturers offering special options for higher angles
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for instance to stow at 75 degrees angle to avoid perpendicular impacts of hail, which is pretty cool.
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Remember
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that zoning regulations usually restrict the maximum height of a PV array based on the height of the system at maximum tilt.
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Zoning boards are fairly attuned to system height
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and may want a graphic like the one a few slides ago
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that shows the maximum height of the tractor system at full tilt.
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Bu dersin kelimeleri ve konuşma notları
Bu videoda gölgeleme çalışması için 30 cümle ve 414 kelime var. Konuşma bölümü 2:25 sürüyor. Konuşmacı dakikada yaklaşık 171 kelimeyle, günlük konuşmaya yakın doğal bir hızda konuşuyor. Kelimelerin yalnızca %78’i İngilizcede en sık kullanılan 3.000 kelime arasında, bu yüzden kelime dağarcığı zorlayıcı.
Bu videodaki önemli kelimeler
Videodan daha az kullanılan 15 kelime, telaffuzu ve anlamıyla:
- rack /ɹæk/ (isim) — askılık. A series of one or more shelves, stacked one above the other.
- tracker /ˈtɹækə(ɹ)/ (isim) — izleyici, takipçi. A person employed to follow and monitor a political rival.
- angle /ˈæŋ.ɡəl/ (isim) — açı. A figure formed by two rays which start from a common point (a plane angle) or by three planes that intersect (a solid angle).
- rotation /ɹoʊˈteɪʃən/ (isim) — devir, deveran. The act of turning around a centre or an axis.
- reveal /ɹɪˈviːl/ (fiil) — açığa vurmak. To uncover; to show and display that which was hidden.
- manufacturer /ˌmænjʊˈfæktʃəɹə/ (isim) — üretici. A person or company that manufactures.
- module /ˈmɑd͡ʒul/ (isim) — modül. A self-contained component of a system, often interchangeable, which has a well-defined interface to the other components.
- parameter /pəˈɹæm.ə.tɚ/ (isim) — parametre. A value kept constant during an experiment, equation, calculation, or similar, but varied over other versions of the experiment, equation, calculation, etc.
- designer /dɪˈzaɪnɚ/ (isim) — tasarımcı, dizayncı. A person who designs something, or who designs things as a profession.
- sheet /ʃit/ (isim) — varak, sayfa. A thin bed cloth used as a covering for a mattress or as a layer over the sleeper.
- regulation /ˌɹɛɡjʊˈleɪʃən/ (isim) — regülasyon. The act of regulating or the condition of being regulated.
- slide /ˈslaɪ̯d/ (isim) — kaydırak. An item of play equipment that children can climb up and then slide down again.
- examine /ɪɡˈzæmɪn/ (fiil) — muayene etmek. To observe carefully or critically to learn about someone or something.
- decrease /dɪˈkɹiːs/ (fiil) — azalmak, düşmek. Of a quantity, to become smaller.
- rat /ɹæt/ (isim) — sıçan, fare. Any of the numerous members of several rodent families that usually have short limbs, a pointy snout, a long, hairless tail, and a body length greater than…
Duyacağınız deyimsel fiiller
- look at (fiil) — bakmak. To observe or watch.
Dikkat edilecek telaffuzlar
Konuşmacı you'll, they're gibi kısaltılmış biçimleri 3 kez kullanıyor. Bunları duyduğunuz gibi kısa söyleyin.
- “sh” ve “zh” sesleri: rotation /ɹoʊˈteɪʃən/, sheet /ʃit/, regulation /ˌɹɛɡjʊˈleɪʃən/, consideration /kənˌsɪd.əˈɹeɪ.ʃən/, vegetation /ˌvɛd͡ʒəˈteɪʃən/
- Uzun kelimeler — vurguyu doğru yere koyun: manufacturer /ˌmænjʊˈfæktʃəɹə/, parameter /pəˈɹæm.ə.tɚ/, regulation /ˌɹɛɡjʊˈleɪʃən/, mechanical /məˈkænəkəl/, consideration /kənˌsɪd.əˈɹeɪ.ʃən/
Bu videoyla nasıl çalışılır
- Videonun tamamını konuşmadan bir kez dinleyin ve bilmediğiniz kelimeleri not edin.
- 0,75× hızla başlayın, cümle cümle tekrar edin ve kolaylaşınca normal hıza dönün.
- Kendinizi kaydedin ve orijinaliyle karşılaştırın; rack, tracker, angle gibi kelimelere özellikle dikkat edin.
Gölgeleme Tekniği Nedir?
Gölgeleme, başlangıçta profesyonel tercüman eğitimi için geliştirilen ve çok dilli Dr. Alexander Arguelles tarafından popüler hale getirilen, bilim destekli bir dil öğrenme tekniğidir. Yöntem basit ama güçlüdür: ana dili İngilizce olan bir sesi dinler ve hemen yüksek sesle tekrar edersiniz — konuşmacıyı 1-2 saniye gecikmeyle takip eden bir gölge gibi. Pasif dinleme veya dilbilgisi alıştırmalarının aksine, gölgeleme beyninizi ve ağız kaslarınızı gerçek konuşma kalıplarını eşzamanlı olarak işlemeye ve yeniden üretmeye zorlar. Araştırmalar, telaffuz doğruluğu, tonlama, ritim, bağlı konuşma, dinleme anlama ve konuşma akıcılığını önemli ölçüde geliştirdiğini göstermektedir — bu da onu IELTS Konuşma hazırlığı ve gerçek dünya İngilizce iletişimi için en etkili yöntemlerden biri yapar.