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Nexant parabolic trough solar power plant systems analysis Task 2. Comparison of wet and dry Rankine Cycle heat rejection, January 20
U.S. Government
Paperback. Books LLC, Reference Series 2011-10-03.
ISBN 9781234429133
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Publisher description
Original publisher: Golden, Colo. : National Renewable Energy Laboratory, [2006] OCLC Number: (OCoLC)174284946 Subject: Solar thermal energy -- Research. Excerpt: ... Task 2 Wet / Dry Heat Rejection Analysis 3. Wet Heat Rejection The procedure for estimating the performance of a plant with a wet mechanical draft cooling tower is outlined below. 3.1 Rankine Cycle The Rankine cycle design for a plant with a wet heat rejection system follows very closely the design for a plant with a dry heat rejection system. The principal changes are the deletion of the air cooled condenser, and the addition of a surface condenser, the wet cooling towers, a circulating water pump, and a makeup water source. The GateCycle flow diagram is shown in Figure 7. 2 The design condenser pressure is 1.23 lb / in for both the dry and the wet heat rejection systems; thus, the f gross cycle efficiency is 0.375 for both plants. 3.2 Wet Cooling Tower Capacity The capacities of the wet cooling tower were selected by the GateCycle program, based on a dry bulb temperature of 106 ° F and a coincident wet bulb temperature of 68 ° F. This combination of temperatures is not expected to be exceeded for all but 1 percent of the hours each year. The characteristics of the cooling tower are summarized in Table 4. Table 4 Wet Cooling Tower Design Parameters Parameter Value Condenser pressure, in. HgA 2.5 Approach to wet bulb temperature, ° F 12.3 Circulating water range, ° F 21.1 Cells, each 3 Total fan power, kWe 881 Water consumption, lb / hr m-Blowdown 154, 694-Evaporation 531, 620-Drift 22, 513-----------Total 708, 827-11-
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Nexant parabolic trough solar power plant systems analysis Task 2. Comparison of wet and dry Rankine Cycle heat rejection, January 20
Book reviews » Nexant parabolic trough solar power plant systems analysis Task 2. Comparison of wet and dry Rankine Cycle heat rejection, January 20
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