IJEA - Volume 8 Issue 06 (JUNE 2019)

 


Sr/No/ Title Pdf
1 A SURVEY ON DIFFERENT SHAPES OF RIBS AT CONSTANT PITCH RATIO IN SOLAR AIR HEATER
Gajendra Dilare , Dr Netrapal Singh

ABSTRACT - Solar air heater has low thermal efficiency as heat transfer coefficient is poor between absorber plate and working fluid (air). In this study, a review on solar air heater performance is presented. For improving heat transfer in solar air heater, several researchers recommended use of Artificial Roughness Element in rib and fine wire form. Use of Artificial Roughness Element helps in breaking laminar sub layer developed on surface of absorber plate. Different Roughness geometries are studied and Their results are observed. This review presents a detail analysis of performance factor of solar air heater with Artificial Roughness Element. An examination of shape, size and orientation of Artificial Roughness Element is presented.
Keywords— Solar Air Heater, Artificial Roughness Element, Rib and Fine Wire etc..


Download
2 A Literature Review Transformer Life-Cycle Cost (Total Owning Cost)
Aftab Alam, Prof. Madhu Upadhyaya

ABSTRACT —Transformer life-cycle cost analysis is a method for assessing the total cost of transformer in its entire useful life. It considers all costs of acquiring, owning (entire operation and maintenance cost). Life cycle cost assessment is especially useful to identify cheapest life cycle cost transformer from the alternatives offered by suppliers instead of acquiring cost. Life cycle cost assessment takes vital technical inputs offered by the suppliers under technical bid converts them into cost components and ads to commercial prices of transformer, installation charges, etc to arrive at life cycle cost. Suitable assumption is made for energy prices, insulating oil prices, expected escalation year on year basis. The present value method of future cash flows is used to convert future charges to be spent on maintenance of transformer with suitable assumption of discounting rate.
Keywords— Life Cycle Cost, Analysis, TOC, EAF Transformer etc….

Download
3 ....................................................................................
A

ABSTRACT –— .
Keywords— etc.
.
Download
4 ,.......................................................
A

ABSTRACT - .
Keywords— DWT, Watermarking, Stegno Image etc.
Page No. 01-03 .
Download
5 A.


ABSTRACT - S.
Keywords—
Page No. 01 - 08 .
Download