Heat recovery

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  • As motive force of processes, heat must be transferred from one fluid to other, task that is performed by means of heat exchangers. From this point of view, heat exchangers represent an important element of thermal facilities that has substantially contributed to technical development of the society. Today it is impossible to imagine any branch of process engineering and energy technology without involvement of heat exchangers. Advanced models of these apparatus were proposed in the middle of the 18th century, while theoretical backgrounds have been completed a century later....

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  • Revised to cover the latest innovations and trends, the newest edition of this classic work provides detailed coverage of every component of effective energy management. It includes expert information on, boilers, steam systems, cogeneration, waste-heat recovery, HVAC systems, control systems, systems maintenance, industrial insulation, indoor air quality, thermal energy storage, and codes and standards.

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  • AIR-HEATING PROCESSES Air can be heated by burning fuel or by recovering waste heat from another process. In either case, the heat can be transferred to air directly or indirectly. Indirect air heaters are heat exchangers wherein the products of combustion never contact or mix with the air to be heated. In waste heat recovery, the heat exchanger is termed a recuperator. Direct air heaters or direct-fired air heaters heat the air by intentionally mixing the products or combustion of waste gas with the air to be heated. ...

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  • Heat transfer calculations in different aspects of engineering applications are essential to aid engineering design of heat exchanging equipment. Minimizing of computational time is a challenging task faced by researchers and users. Methodology of calculations in some application areas are incorporated in this book, such as differential analysis of heat recoveries with CFD in a tube bank, heating and ventilation of equipment and methods for analytical solution of nonlinear problems.

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  • MODERN POWER-PLANT CYCLES AND EQUIPMENT CYCLE ANALYSES 1.4 Choosing Best Options for Boosting Combined-Cycle Plant Output 1.4 Selecting Gas-Turbine Heat-Recovery Boilers 1.10 Gas-Turbine Cycle Efficiency Analysis and Output Determination 1.13 Determining Best-Relative-Value of Industrial Gas Turbines Using a LifeCycle Cost Model 1.18 Tube Bundle

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  • HEATING, VENTILATING, AND AIR CONDITIONING ECONOMICS OF INTERIOR CLIMATE CONTROL 16.2 Equations for Heating, Ventilation, and Air-Conditioning Calculations Required Capacity of a Unit Heater Determining Cooling-Tower Fan Horsepower Requirements 16.12 Choosing an Ice Storage System for Facility Cooling 16.13 Annual Heating and Cooling Energy Loads and Costs 16.22 Heat Recovery Using a Run-Around System of Energy Transfer 16.24 Rotary Heat Exchanger Energy Savings 16.26 Savings from ‘‘Hot-Deck’’ Temperature Reset 16.28 Air-to-Air Heat Exchanger Performance 16.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS P • A • R • T 1 POWER GENERATION Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 2006 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. POWER GENERATION Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 2006 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 12 REFRIGERATION Refrigeration Required to Cool an Occupied Building 12.1 Determining the Displacement of a Reciprocating Refrigeration Compressor 12.4 Heat-Recovery Water-Heating from Refrigeration Units 12.6 Computing Refrigerating Capacity Needed for Air-Conditioning Loads 12.12 Analysis of a Compound CompressionRefrigeration Plant with a WaterCooled Intercooler and Liquid Flash Cooler 12.47 Computation of Key Variables in a Compression Refrigeration Cycle with Both Water- and Flash-Intercooling 12.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 18 ENVIRONMENTAL CONTROL AND ENERGY CONSERVATION ENVIRONMENTAL CONTAMINATION ANALYSIS AND PREVENTION 18.2 Recycle Profit Potentials in Municipal Wastes 18.2 Choice of Cleanup Technology for Contaminated Waste Sites 18.4 Cleaning Up a Contaminated Waste Site Via Bioremediation 18.10 Process and Effluent Treatment Plant Cost Estimates by Scale-Up Methods 18.16 Work Required to Clean Oil-Polluted Beaches 18.73 Sizing Explosion Vents for Industrial Structures 18.75 Industrial Building Ventilation for Environmental Safety 18.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 6 INTERNAL-COMBUSTION ENGINES Determining the Economics of Reciprocating I-C Engine Cogeneration 6.1 Diesel Generating Unit Efficiency 6.7 Engine Displacement, Mean Effective Pressure, and Efficiency 6.8 Engine Mean Effective Pressure and Horsepower 6.9 Selection of an Industrial InternalCombustion Engine 6.10 Engine Output at High Temperatures and High Altitudes 6.11 Indicator Use on Internal-Combustion Engines 6.12 Engine Piston Speed, Torque, Displacement, and Compression Ratio 6.

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  • REFRIGERATION Refrigeration Required to Cool an Occupied Building 12.1 Determining the Displacement of a Reciprocating Refrigeration Compressor 12.4 Heat-Recovery Water-Heating from Refrigeration Units 12.6 Computing Refrigerating Capacity Needed for Air-Conditioning Loads

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 16 HEATING, VENTILATING, AND AIR CONDITIONING ECONOMICS OF INTERIOR CLIMATE CONTROL 16.2 Equations for Heating, Ventilation, and Air-Conditioning Calculations 16.2 Required Capacity of a Unit Heater 16.58 Determining Cooling-Tower Fan Horsepower Requirements 16.12 Choosing an Ice Storage System for Facility Cooling 16.13 Annual Heating and Cooling Energy Loads and Costs 16.22 Heat Recovery Using a Run-Around System of Energy Transfer 16.24 Rotary Heat Exchanger Energy Savings 16.

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  • This section provides requirements for all methods of construction of power, electric, and miniature boilers; high temperature water boilers, heat recovery steam generators, and certain fired pressure vessels to be used in stationary service;...

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  • we were putting about 10°F into the makeup air simply ... MAKE–UP. AS. 3. AIR SEPARATOR. N. RUN–AROUND–COIL HEAT RECOVERY FLOW DIAGRAM. PHASE IV ...

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  • CHAPTER 53 AIR HEATING Richard J. Reed North American Manufacturing Company Cleveland, Ohio 53.1 53.2 AIR-HEATING PROCESSES COSTS 1641 1643 53.3 53.4 WARNINGS BENEFITS 1643 1644 53.1 AIR-HEATING PROCESSES Air can be heated by burning fuel or by recovering waste heat from another process. In either case, the heat can be transferred to air directly or indirectly. Indirect air heaters are heat exchangers wherein the products of combustion never contact or mix with the air to be heated. In waste heat recovery, the heat exchanger is termed a recuperator.

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  • Another alternative often considered for power augmentation and/or to simply minimize the impact of ambient temperature effects is the use of inlet air chillers. Depending upon power plant economics—in conjunction with ambient temperature and plant load profiles—chillers can afford substantial economic value. This alternative cools the incoming air, thus increasing the output relative to the gain available with an evaporative cooler.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Salicylic acid alleviates decreases in photosynthesis under heat stress and accelerates recovery in grapevine leaves

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  • The induction of the heat shock response as well as its termination is auto-regulated by heat shock protein activities. In this study we have investi-gated whether Hsp90 functional protein levels influence the characteristics and duration of the heat shock response. Treatment of cells with several benzoquinone ansamycin inhibitors of Hsp90 (geldanamycin, herbimycin A) activated a heat shock response in the absence of heat shock, as reported previously.

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  • CEF’s assumptions about production growth in the pulp and paper sector drive the expected increase in energy consumption despite the trend of decreasing energy intensity. CEF projections are also based on the assumption that Kraft/sulfite pulping will increase from an 83.7 percent market share in 1994 to an 88.7 percent market share by 2020, with mechanical pulping dropping from 9.6 percent to 5.7 percent, and semi-chemical pulping dropping from 6.7 percent to 5.6 percent.

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  • Multi-Nozzle Quiet Combustors (MNQC) and single nozzle diffusion combustors provide the capability to some gas turbines to burn liquid fuels and gases with high CO2, CO or H2 content. In the case of these systems, water and steam are often injected into the combustor as a means of reducing/controlling emissions levels. However, it should also be noted that water or steam injection can also be used as a means of gas turbine power augmentation.

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