heat recovery plant Articles

  • Heat recovery from wastewater

    Heat recovery from gray water is particularly important in water-intensive industries such as pulp and paper plants, dairies and breweries. Rather than flushing used water down the drain, consider whether a heat exchanging system can help you put that energy to work in your process again. Most plant operators arc aware of the need to save money and reduce the environmental impact of their plant ...


    By DDI Heat Exchangers Inc.

  • Modelling the viability of heat recovery from combined sewers

    Modelling of wastewater temperatures along a sewer pipe using energy balance equations and assuming steady-state conditions was achieved. Modelling error was calculated, by comparing the predicted temperature drop to measured ones in three combined sewers, and was found to have an overall root mean squared error of 0.37 K. Downstream measured wastewater temperature was plotted against modelled ...


    By IWA Publishing

  • Pumps are the heart of heat-transfer plants

    Manufacturers in a variety of industries depend on heat-transfer plants to heat or cool their machines and apparatus. German firm heat11 GmbH & Co. KG specializes in heat-transfer plants of virtually all types. The chemical industry uses their installations for controlling the temperature of reactors and during the production of color pigments and liquid crystals. In the plastics industry, ...


    By ALLWEILER GmbH

  • A novel cogeneration cycle based on a recompression supercritical carbon dioxide cycle for waste heat recovery in nuclear power plants

    In this study, a novel cogeneration cycle based on the recompression S–CO2 Brayton cycle is proposed, analysed and optimised thermodynamically to utilise the waste heat from a nuclear power plant. The cycle was constructed theoretically on the basis of a transcritical CO2 power cycle and a LiBr/H ...


    By Inderscience Publishers

  • Power Substation and a Gas-Fired Combustion Turbine and Heat Recovery Steam Generator

    B&V Energy expands the world's largest nitrogen plant by constructing a cogeneration plant supplying the additional power needed to reach resources deep in Mexico's offshore oil field. Metropolitan Mexico City has a population of approximately 20 million and is one of the most densely populated areas in the world, requiring an extraordinary amount of gas and oil to satisfy its growing energy ...


    By Black & Veatch Corporation

  • Heat recovery and energy efficiency, improves profitability and reduces CO footprint

    Using latest technology in combustion of oil and gas can provide significant savings in overall energy consumption. Modern oxygen control that compensates changes in ambient temperature and fuel qualities can increase energy efficiency up to 3%. By adding the usage of hot combustion air another 2-3% can be saved. Modern burner technology without mechanical linkage, operating with accurate ...


    By Oilon Oy

  • Investigating the interactions of decentralized and centralized wastewater heat recovery systems

    In the urban water cycle there are different sources for extracting energy. In addition to potential and chemical energy in the wastewater, thermal energy can also be recovered. Heat can be recovered from the wastewater with heat exchangers that are located decentralized and/or centralized at several locations throughout the system. It can be recovered directly at the source (e.g. in the ...


    By IWA Publishing

  • Energy recovery from thermal treatment of dewatered sludge in wastewater treatment plants

    Sewage sludge is a by-product generated from municipal wastewater treatment (WWT) processes. This study examines the conversion of sludge via energy recovery from gasification/combustion for thermal treatment of dewatered sludge. The present analysis is based on a chemical equilibrium model of thermal conversion of previously dewatered sludge with moisture content of 60–80%. Prior to ...


    By IWA Publishing

  • Power Positive Resource Recovery

    Using laws of thermodynamic analysis to evaluate the energy and power characteristics of wastewater and beneficial uses of biogas offers greater insight into best business practices and what is achievable. Growing numbers of waste-water treatment plants (WWTP) are striving to produce more power onsite. In recent years, there’s even been a race among WWTP operators to see who can ...


    By BioCycle Magazine

  • East coast power plant realizes 95% water recovery

    The Facility Bechtel Power Corporation builta power plant in Northampton, Pennsylvania for U.S. Generating Company. The power plant burns culm, a lower quality coal rejected from use in previous decades. By using culm as the fuel, U.S. Generating will clean up a solid disposal site. The power plant contains the usual systems including cooling towers and demineralizers that produce waste ...

  • Case study - Air-to-air heat exchanger provides plant heat and big savings

    OVERVIEW A food processing facility installed a new Regenerative Thermal Oxidizer (RTO) for odor control from its roasting operation.  The oxidizer was designed for 95% thermal rate of efficiency and included supplemental fuel injection (SFI) which is used during low VOC loading conditions, to help save fuel cost.  The customer was looking at additional ways  to further ...

  • Autothermal RTO Retrofit with Structured MLM® Heat Recovery Media Yields $100,000+ Savings Per Year

    MLM® and Rest-O-Cat® Succeed Where Random Heat Recovery Media Failed A suburban Chicago producer of coal tar distillates and specialty chemicals uses a regenerative thermal oxidizer (RTO) to ...


    By Lantec Products, Inc.

  • Case study - Maximizing heat recovery from your oxidizer and reducing operating costs

    More and more, companies operating air pollution control equipment today realize that the initial capital cost of an oxidizer system can be rapidly eclipsed by continued operating expenses if careful attention is not periodically given to the system. Below are ten tips to ensure your oxidizer is operating at peak performance. The first five tips focus on parameters end-users should know about ...

  • Solvent Recovery System Keeps Presses Rolling at World`s Largest Gravure Printing Plant

    When QUAD/GRAPHICS Inc. entered the publication gravure printing market, it followed the axiom of Daniel Burnham, the 19th century architect and urban planner, to 'make no small plans.' In 1985, the Pewaukee, Wis.-based printing company purchased two 96-inch web, eight-color, high-speed presses and installed them at its new printing plant in Lomira, Wis., near Milwaukee. Conventional wisdom at ...


    By AMCEC Inc.

  • Combined Heat and Power (CHP) essentials

    'CHP essentials' introduces the concept of power and heat 'production possibility sets', starting at the cradle of CHP, i.e., the thermal power generation plant. The latter always occasions 'fatal' heat that is either recovered (the 'merit' of CHP) or wasted (condensing). This split paves the way to defining the production possibility sets of CHP plants, shown for steam turbines, internal ...


    By Inderscience Publishers

  • Case study - Oxidizer energy recovery options

    Overview The mainstream media today is full of allusions to energy awareness and conservation. Just as visible these days are media references to astronomical dollar figures that can boggle the mind. This article does not seek to break out of that mold, but rather to conform to it – as Oxidizer Stack Heat Recovery offers a tremendous opportunity for both energy conservation and ...

  • Application of Membrane Technology for the Recovery and Reuse of Water

    Abstract As water and sewer costs are expected to increase over the next decade, membrane technology will continue to be a viable and economical option in the recovery and reuse of water. This paper describes the mechanism of membrane effected separation (specifically reverse osmosis, ultrafiltration and microfiltration), membranes commercially available, membrane element configurations, and how ...


  • Future-oriented further developments: wastewater heat utilization plants with a return on investment (ROI) of 2 - 6 years

    Sewage is dirty and stinks. Out of sniffing distance – out of mind. Up until the 1980s sewage was taboo and not given the attention it deserves. One cold winter morning in 1988, 23 years ago, Urs Studer stopped beside a steaming manhole cover and wondered how such a source of heat could go untapped. Ever since he has been dedicating himself intensively to the recycling of sewage heat. At ...


    By RABTHERM AG

  • Thermally Enhanced NAPL Recovery - Case Study

    QED's AutoPump® Can Endure Tough Conditions to Deliver Superior Thermally Enhanced NAPL Recovery The site of a former U.S. Department of Energy (DOE) nuclear weapons production facility (the Pinellas Plant) in Largo, Florida posed an extreme challenge for groundwater remediation pumps. Soil and surficial aquifers at the site, now known as the Young-Rainey Science, Technology, and Research ...


    By QED Environmental Systems

  • Quantifying Combined Heat and Power (CHP) activity

    In CHP plants without heat rejection facilities power, output is complementary to the recovery of heat, and all activity is cogeneration. CHP plants with heat rejection facilities can operate a mix of cogeneration and condensing activities. Quantifying the energy flows of both activities properly requires knowledge of the design power-to-heat ratios of the CHP processes (steam and gas turbines, ...


    By Inderscience Publishers

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