عنوان

اصلاح بازدهی انرژی دو نوع کلکتور خورشیدی تخت هوایی با به کار بردن منحرف کننده های قوسی شکل و پوشش شیشه ای دو جداره

Number

‭۱۴۰۷۰پ‬

.Language of Text, Soundtrack etc

per

Title Proper

اصلاح بازدهی انرژی دو نوع کلکتور خورشیدی تخت هوایی با به کار بردن منحرف کننده های قوسی شکل و پوشش شیشه ای دو جداره

First Statement of Responsibility

/عبدالله بشیری

Name of Publisher, Distributor, etc.

: کشاورزی

Date of Publication, Distribution, etc.

، ‮‭۹۴‬

Text of Note

چاپی

Dissertation or thesis details and type of degree

کارشناسی ارشد

Discipline of degree

مهندسی مکانیزاسیون کشاورزی

Date of degree

‮‭۱۳۹۴/۰۶/۱۷‬

Body granting the degree

تبریز

Text of Note

فاقد چکیده فارسی

Text of Note

Because of the diminishing non-renewable energy resources, todays, it is tried to get clean, economic and renewable energy resources. One of these renewable energies is solar energy. It is the most exclusive resource and also the main source of other energies in the world. Solar energy can be converted to other forms of energy, directly and indirectly. The simplest and the most efficient conversiondevice is a solar collector to reach thermal energy. In this research, the collector samples exist in agricultural faculty of Tabriz university were used to analyse the flat plate solar air collectors. Three kinds of flat plate solar air collectors were analysed , which were different in the presence or absence of baffles and also in their layout. These three collectors were collector SC110 without baffle (control type), SC111 containing arc- shaped baffles with a width of 4 cm (type1) and SC112 containing arc- shaped baffles with a width of 7 cm (type2). But their transverse and longitudinal distances were different. The distances between baffles were 6 and 9 cm in collector SC111 and SC112, respectively. 16 thermal sensors of LM35 were used to measure temperature in different parts of baffle. Also, the pressure around the buffles was measured by water U- shaped monometer. To do related tests, data collection was done during 10 days in outer area of a building. In the first five days of testing, data collection was done by single-glazed glass cover and in the second five days of testing, data collection was done by double glazed cover. Mass rate of input flow for the single-glazed collector, double-glazed and for SC110 (control type), SC111 (type1) and SC112 (type2) was 0.02, 0.018 and0.017, respectively. It was 0.02, 0.019 and 0.019 kg/s for double-glazed. Results showed that the most important difference was seen in the average of inlet and outlet temperature in the collectors with singled-glazed and double-glazed glass cover in collectors SC112 and SC122 with blade width of 7 cm.In both collectors (single-glazed and double-glazed), the average of absorbent page for collector SC110 (cotrol type) and SC120 was more than that for two other collectors.In the collectors with single-glazed and double-glazed cover, the highest efficiencies were 48.75 and 61.95 for collectors SC112 and SC122 and the lowest efficiencies were 43.95 and 40 for collectors SC110 and SC120

بشیری، عبدالله

عجب شیرچی اسکوئی، یحیی، استاد راهنما

بهفر، حسین، استاد مشاور

Public note

سیاه و سفید

نمایه‌سازی قبلی