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Chakrabarti, K. N.
- On the Defects and Inspection of Welded Vessels
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In this review paper, an attempt has been made to highlight the probable defects generally met with in welded vessels along with the inspection techniques.
Authors
Affiliations
1 Dept. of Mech. Engg., Jadavpur University, IN
1 Dept. of Mech. Engg., Jadavpur University, IN
Source
Journal of the Association of Engineers, India, Vol 52, No 3 (1977), Pagination: 173-177Abstract
Welding, because of certain obvious advantages it offers, has been very rapidly replacing the conventional methods of fabrication used in the manufacture of vessels to stand pressures, low, medium and high. This change over to a newer fabricational technique since the Second World War calls for elaborate and extensive testing methods for defects to overcome the natural human resistance to adopt the non-conventional technique.In this review paper, an attempt has been made to highlight the probable defects generally met with in welded vessels along with the inspection techniques.
- Terotechnological Aspects of Solar Hot Water Systems:A Review
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Authors
Affiliations
1 Department of Mechanical Engineering, B. E. College, Howrah - 711103, IN
2 Department of Mechanical Engineering, Jadavpur University, Calcutta - 700032, IN
1 Department of Mechanical Engineering, B. E. College, Howrah - 711103, IN
2 Department of Mechanical Engineering, Jadavpur University, Calcutta - 700032, IN
Source
Journal of the Association of Engineers, India, Vol 64, No Spl (1988), Pagination: 93-97Abstract
A terotechnological approach to the analysis of any system is a cost effective performance evaluation over the life-cycle of the system. Thus it considers (I) the initial capital cost, (ii) the operating, maintenance, and repair costs, and (iii) the worth of lost production due to breakdown, frequent maintenance, and substandard performance. In a solar hot water system, the fuel cost being nil, an appropriate terotechnological approach would naturally emphasise on the selection of proper materials. Installation procedure, and maintenance schedule such that the system functions at its rated capacity during its design-life would not be affected by external environmental factors. It is attempted here to consider the different sub' systems and components, the initial and future costs, system sizing, installation procedure and maintenance schedule of a solar hot water system to achieve optimum life-cycle cost of the systemReferences
- Kreith, F., and Kreider, Jan F., Principles of Solar Engineering, McGraw-Hill Book Company, New York, pp.354-367, 1978.
- Kreider, Jan F., The Solar Heating Design Process, McGraw-Hill Book Company, New York, pp. 1M7, 191-199, 357,1982.
- Methods of Testing to Determine the Performance of Solar Collectors, ASHRAE STD. 93-97, pp. 18-32, 1978.
- The Solar Age Resource Book, Everest House, New York, pp. 71-77, 1979.
- Solar Water Heater, A Technical Report by Indian Copper Information Centre, Calcutta, 1977.
- Solar Hot Water Systems, Solar Energy Centre, DNES. Government of India, 1985.