Macro-Engineering (Water Science and Technology Library) by V. Badescu, R.B. Cathcart, R.D. Schuiling

By V. Badescu, R.B. Cathcart, R.D. Schuiling

Macro-engineering consists of the large-scale amendment and manipulation of typical structures for the advantage of mankind. the first objectives of a few Earth-based macroprojects defined during this e-book are energy construction, land reclamation, meals creation, weather switch, surroundings, water, shipping and coastal safeguard. different Earth or house initiatives thought of the following have a extra futuristic ring, yet our present-day technical ability makes their cognizance attainable. Earth-based macroprojects often mix diverse facets and goals. they've got an incredible impression at the ecology of a area and the inhabitant's technique of residing (like tourism, fishing, shipping). Its results could be felt world wide, just like the upward thrust in international sea point after the damming and evaporation of enormous ocean gulfs for strength construction, or the switch in weather following the local aid of sun insolation. every one venture will dramatically switch the lives of the folks affected. it may offer them with a greater way of life, on the fee of a quick edition to a replaced atmosphere and a replaced way of life. this can impress transitority geopolitical and social unrest. Macro-engineering contributes to sustainable development, however it needs to first triumph over the social, political and most economical stumbling blocks in its approach.

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Many of the parameters governing the reactions as described are not, or poorly known and will require extensive experimental studies. The macro-engineering approach outlined in this paper makes use of large manmade holes as pressure vessels for mineral sequestration and bypasses the problem of poor kinetics that must be faced when huge and expensive industrial autoclaves are used. If the reaction leading to magnesite + amorphous silica can be successfully Mineral Sequestration of Carbon Dioxide 29 applied in deep opencast mines, it may represent a breakthrough to the solution of the greenhouse problem, as the recovered heat of reaction is substantial, compared to the power produced by the combustion of fossil fuels.

2005). , 2003) and 103 $/m2 (SHP, 2005) due to their more simple and more robust design. Therefore we have chosen to equip the thousands of solar thermal power stations that are needed for Operation S with linear Fresnel mirrors, see Fig. 1. As with any emerging technology the costs of CSP technology components will decline, following a so-called learning curve. H. du Marchie van Voorthuysen from 320 $/m2 in 2006 to 124 $/m2 in 2020 and ultimately to 106 $/m2 in 2040. In the report by Sargent & Lundy (2003), these costs decline from 234 $/m 2 in 2004 to 181 $/m2 in 2020.

We make the rough estimate that one half of the population of the world can obtain electricity from CSP stations that are located within 500 km, and for the Table 3. 3 hours) 0 843 km3 /day) 5516 Large-Scale Concentrating Solar Power Technology 43 other half the solar electricity has to be transported over 3500 km. 5% (Trieb 2004). 25% to the world capacity of solar power stations. The additional investment is 0 0725 · 4841 = 351 G$. The investment for 3500 km of power line, 50 km of submarine cable, and the conversion stations is 430 M$/GW (Trieb 2004).

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