Title
Solar Thermal Energy Utilization: German Studies on Technology and Application,Used
Delivery time: 8-12 business days (International)
Sie beinhaltet zum einen die Fortsetzung und abschlieende Bewertung der Materialuntersuchungen zum Bau eines Sckundrkonzentrators (feil I Vertragsnr. 53704355), zum anderen werden der Bau mehrerer Vormodelle zu den mg lichen Konzentratorformen und Meergebnisse zu diesen Modellen vorgestellt, wo bei unter Bercksichtigung der aufwendigen Fertigung der harten Spiegelbasis materialien zur Kostenersparnis Iinearisierte Formen untersucht wurden, mit und ohne Teilbereich mit keramikhnlichen optischen Eigenschaften (Glanzkarton). Polierte Keramik in unbeschiehteter Form ist nur bedingt einsetzbar, da sie bei nahezu senkrechtem Strahlungseinfall einen direkten Reflexionsgrad von ca 9% zeigt (A1 TiO ). Die 27TReflexion dagegen kann fr weie, reine Keramik ber 90% 2 s liegen (Hartporzellan). Erst durch Beschichtungen lassen sich die Werte fr die direkte Reflexion deutlich erhhen, wobei die Oberflchenbeschaffenheit eine we sentliche Rolle spielt. Eine Beschichtung von TiN auf Glas erzielt Werte ber 90%, jedoch ist diese Schicht nicht ber das gesamte Sonnenspektrum einsetzbar. Auerdem ist die Schicht oxidationsgefhrdet, eine zustzliche Goldschicht wre mglicherweise ein Schutz dagegen. Bei den Modellen ( CPC, Trumpet ) wurde die Intensittsverteilung in einigen Schnitten in der Austrittsapcrtur aufgenommen, zum Teil bei unterschiedlichen Einfallswinkeln. Daraus wurde die Verstrkung innerhalb der Schnitte und der Flu im Vergleich zum Zustand ohne Konzcntrator ermittelt. Durch den Einsatz einc.
By changing our most important processes and
products, we have already made a big leap forward. This ranges from the
increased use of more sustainable fibers to the use of more
environmentally friendly printing processes to the development of
efficient waste management in our value chain.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.