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Title: Uses of warmed water in agriculture. Final report

Uses of warmed water in agriculture. Final report Energy in the form of warmed water is available from condenser cooling water from fossil fuel or nuclear-electric power-generating facilities, geothermal power plants, geothermal fluids, or spent steam and cooling water from industrial processes. A re-analysis of the characteristics of possible agricultural uses of warmed water has revealed the need to decouple considerations of warmed water sources from those of warmed water users. Conflicting objectives and managerial requirements seem to preclude an integrated system approach. Rather an interface must be established with separate costs and benefits identified for a reliable warmed water source and for its various potential uses. These costs and benefits can be utilized as a basis for decisions separately by the energy supplier and the prospective energy users. A method of classifying uses of warmed water according to need, volume, objective, temperature, and quality is presented and preliminary classifications are discussed for several potential agricultural uses of warmed water. Specific uses for soil warming, space heating in greenhouses, and irrigation are noted. Specific uses in aquaculture for catfish, lobster, and prawn production are discussed. Warmed water use in animal shelters is mentioned. Low-quality heat is required for methane generation from biomass and warmed water heating could be more » utilized in this industry. 53 references. (MCW) « less
Authors:
Publication Date:
OSTI Identifier:OSTI ID: 6592396
Report Number(s):UCRL-13930
TRN: 79-003297
DOE Contract Number:W-7405-ENG-48
Resource Type:Technical Report
Research Org:California Univ., Davis (USA). Dept. of Agricultural Engineering
Country of Publication:United States
Language:English
Subject: 60 APPLIED LIFE SCIENCES; 29 ENERGY PLANNING, POLICY AND ECONOMY; 54 ENVIRONMENTAL SCIENCES; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 20 FOSSIL-FUELED POWER PLANTS; AGRICULTURE; HOT WATER; WASTE HEAT UTILIZATION; AQUACULTURE; ANIMAL SHELTERS; AVAILABILITY; DOMESTIC ANIMALS; ECONOMICS; FEASIBILITY STUDIES; FOOD; GEOTHERMAL FLUIDS; GEOTHERMAL RESOURCES; GREENHOUSES; HEAT RECOVERY; INDUSTRY; NATURAL STEAM; POWER PLANTS; PROCESS HEAT; PRODUCTION; RESOURCE CONSERVATION; SPACE HEATING; WATER QUALITY; WATER REQUIREMENTS; WATER RESOURCES; ANIMALS; BUILDINGS; ENERGY; ENERGY RECOVERY; ENVIRONMENTAL QUALITY; FLUIDS; HEAT; HEATING; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; RECOVERY; RESOURCES; SHELTERS; STEAM; WASTE PRODUCT UTILIZATION; WATER Geothermal Legacy 553000* -- Agriculture & Food Technology; 290800 -- Energy Planning & Policy-- Heat Utilization-- (1980-); 290400 -- Energy Planning & Policy-- Energy Resources; 520500 -- Environment, Aquatic-- Site Resource & Use Studies-- (-1989); 320304 -- Energy Conservation, Consumption, & Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization; 200105 -- Fossil-Fueled Power Plants-- Heat Utilization