Results 1 - 10 of 20
Results 1 - 10 of 20. Search took: 0.017 seconds
|Sort by: date | relevance|
[en] A map of Colombia, a country located in the northern part of South America, is shown. With an extension of almost 1.4 million square kilometers, most of its 19.0 million inhabitants; live in the central and western regions while almost half of the territory (the eastern plains) is still largely unsettled and undeveloped. Although the Colombian economy has been dependent mainly on agricultural products and the coffee production has been the primary, source of foreign currency, it is clear now that an industrialization process is beginning. The effects of each a process can already be measured in terms of improved standard of living and in a more steady monetary situation.
[en] Pakistan is one of the very few developing countries which have nuclear power plants actually under construction. The country has a unique geographical position in the sense that it consists of two provinces, namely East Pakistan and West Pakistan, which are physically separated by over 1000 miles of Indian territory. Because of the physical separation of the two provinces, the power systems and the development programmes in the two provinces are considered separately.
[en] The first nuclear power project in Taiwan will be a 500 MW class unit scheduled for completion by the end of 1975. (Refer to Taipower's power development programme. By that time, the system will already be large enough to accommodate a nuclear installation). As Taipower is a public utility, and utilities are always very conservative, the reactor selected by Taipower is of the light water type.
[en] The context in which this paper is set down concerns nuclear power, and this paper complements a number of more specialist treatments of aspects of the subject. Although it is, in consequence, perhaps to be expected that the discussion given would be specifically for a nuclear power plant the principles and methods of working involved apply equally to all kinds of power station projects though the actual fields of specialisation of team members, and the topics.of major discussion may vary from one project to another.
[en] The subject of my lecture is the use of nuclear energy for sea water desalination. During this study course this is the only lecture we will have on desalination and therefore we have many points to cover. I propose to cover these points in the following order: (1) Determining the feasibility, of nuclear desalination (2) Nuclear desalination and plant cycles (3) Additional nuclear desalination plant considerations and recent desalination developments. In several cases, whore there is only time for a summary, there is a more complete treatment in the Appendices.
[en] In dual purpose nuclear power stations producing both electricity and desalted water/ high pressure steam at about 250°C enters a back pressure turbine and is discharged at about 125°C into the first, stage, of a multistage sea water evaporator. Since these two temperatures are essentially fixed for technical and economic reasons, the ratio of electricity and water produced is also fixed. At least it is under optimum design conditions. This situation is acceptable as long as both products can be fully marketed; however, in some applications more water is needed than electricity or vice versa. When the power requirement dominates, water production can be reduced without much of an economic penalty by using an extraction turbine rather than a back pressure turbine. On the other hand, when the water requirement dominates, reduction in electricity output by bypassing steam or by some other device appreciably increases the cost of desalted water. Studies indicate that water costs might be increased by one-third in a ''water only'' plant. To avoid this dilemma, it was suggested several years ago that when there is no external, market for the electricity produced in a dual purpose plant it might be advantageous to use the electricity onsite for the production of industrial chemicals and metals. Thus the idea of the Agro-Industrial Complex was born.
[en] Rapid increase in electric demand during the past several years initiated the planning of Thailand's first nuclear power plant. The commissioning of this nuclear plant has been scheduled to meet a forecast demand of about 4,000 million kwh in 1976. At present, Thailand's electric grid consists of a large proportion of storage hydroelectric and oil fired thermal power plants and some gas turbine and diesel units. The grid has about 900 MW of installed capacity. A tremendously high rate of growth of about 30 percent per year both in peak power and energy have been recorded in the past few years. The actual records of these growths and the forecast demands in the future which was estimated on a conservative ground is given. The corresponding trend and the pattern of which suitable new generating plants to be added is shown. Having these high rates of demands, together with the back-up from the hydroelectric plants and the influence of extremely high cost of imported fuel oil, nuclear power is undoubtedly a potentially favourable source of energy for this grid.
[en] 1. Arguments have already been given elsewhere(1) to support the view that the most logical method of economic assessment of nuclear power is some form of closed system analysis. Choice of method, however, still leaves open the question of economic criteria on which to base a decision. Two such criteria will be considered here (i) Internal rate of return, (ii) Net present value.
[en] The purpose of this paper is to indicate the vast gap in the utilisation of nuclear power between advanced and developing countries, identify some of the major problems encountered in the introduction of nuclear power into developing countries and suggest some possible approaches to overcome them.