Energy Recovery Articles
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Many hamsters: how the EU can enable private firms to provide renewable energy
This paper investigates the energy investment needs of the European Union (EU), including renewable energy. Europe currently has little or no economic growth, and interest rates are expected to rise. Given the state of many EU countries' economies, this is a good time to encourage investment because - according to Keynesian economics - extra spending can stimulate economic activity. The current ...
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Eco Waste Solutions – Named Once Again Defense Energy Technology Challenge Finalist
Eco Waste Solutions – Named Once Again Defense Energy Technology Challenge Finalist Deployable Waste to Energy Conversion technology to be presented at the 2014 Defense Energy Summit November 7, 2014 BURLINGTON, Ontario– Eco Waste Solutions (EWS), a manufacturer of thermal waste conversion and energy recovery technologies, is pleased to announce that it was selected once again as a ...
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GTI and the City of Tulare celebrate 25 years of converting waste to energy - case study
Energy conservation has always been extremely important to both the City of Tulare and the wastewater treatment facility. Since biogas can be used as fuel to generate electricity, the city wanted a means to reliably collect biogas from the BVF® reactor to recover the energy while also controlling odors and reducing greenhouse gas emissions. To address the City of Tulare’s needs, ...
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Energy efficiency: la Compagnie des Fromages counts on innovation with Emerson technologies
The subsidiary of the Bongrain Group is pursuing a policy to reduce its energy usage and CO2 emissions by investing in a facility designed by Cofely Axima, a leader in industrial refrigeration and a subsidiary of GDF Suez. This solution stands out for its use of a process that heats and cools within a single cycle and its use of key components supplied by the Emerson Group – a Vilter ...
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Role of primary sedimentation on plant-wide energy recovery and carbon footprint
The goal of this paper is to show the effect of primary sedimentation on the chemical oxygen demand (COD) and solids fractionation and consequently on the carbonaceous and energy footprints of wastewater treatment processes. Using a simple rational procedure for COD and solids fraction quantification, we quantify the effects of varying fractions on CO2 and CO2-equivalent mass flows, process ...
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A STIEFEL project KVA Linthgebiet Niederurnen case study
The waste incineration plant KVA Linthgebiet is situated in Switzerland. The plant disposes of a total of 120’000 tons of waste each year from 240‘000 inhabitants in the surrounding area. Due to the thermal recovery, it produces annually 84 GWhour of electrical energy and therefore saves 250’000 litres of fuel oil by providing energy to a district heating system. Background and ...
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Extension of energy–utilisation diagram to power availability for exergy loss analysis
Energy–Utilisation Diagram (EUD) has been used to identify exergy loss in general process units, whereas Power Availability Diagram (PAD) provides the difference between exergy changes of two pressure exchangers. Two modifications of the original PAD are proposed for better exergy loss visualisation. Firstly, the energy donor curve is shifted to the location of energy acceptor. Secondly, arrows ...
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Energy recovery potential using micro hydropower in water supply networks in the UK and Ireland
The supply and treatment of water is a highly energy intensive process, resulting in large amounts of greenhouse gas emissions as well as incurring large economic costs. Both governments and water service providers worldwide recognise the need for more sustainable water supply systems. In recent years, the use of hydropower turbines within water supply networks has been shown as a viable option ...
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Next generation biogas upgrading using highly selective gas separation membranes
More and more effort is being put into the utilization of organic waste streams in anaerobic digesters, producing useful products such as fertilizers and biogas. DMT has been developing biogas treatment plants for over 25 years, closely following market developments. It is becoming increasingly attractive to upgrade biogas to natural gas quality and inject it into the natural gas grid or use it ...
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Wastewater treatment in the dairy processing industry - recovering energy using anaerobic technology
Introduction The composition of wastewater from dairy processing plants makes it highly suitable for biological wastewater treatment processing. As well anaerobic biological treatment of the wastewater there is also the option of applying anaerobic biological processes. By applying anaerobic technology a large part of the organic load in the wastewater can be removed and converted into ...
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The Greening of Carbon Fibre
Carbon fiber is a material that has, and will continue to revolutionize the products we use every day by making them stronger, lighter and more durable. Experts estimate that the specialty material is twice as stiff as steel and five times stronger, per unit of weight. It is made from organic polymers which consist of long strings of molecules held together by carbon atoms. The manufacturing ...
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CHP efficiency for biogas
Combined heat and power plant efficiency is a function of the conversion efficiency of the energy in the fuel gas to useful energy in the form of electricity and heat. A combined heat and power (CHP) plant is typically a reciprocating gas engine that uses the energy in the gas to drive a crank shaft. The crank shaft turns an alternator to produce electricity. Heat is released during the gas ...
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Wood briquettes packed full of energy
Konolt manages its energy output using RUF briquetting machinery Timber processors Konold are improving their energy balance with the help of their RUF briquetting machine. Wood waste is being pressed into briquettes to create a uniform combustible material. The heat they produce is then used for process heating and to heat their premises, with the residual heat being used to generate ...
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Anaerobic digestion of stillage fractions – estimation of the potential for energy recovery in bioethanol plants
Stillage processing can require more than one third of the thermal energy demand of a dry-grind bioethanol production plant. Therefore, for every stillage fraction occurring in stillage processing the potential of energy recovery by anaerobic digestion (AD) was estimated. In the case of whole stillage up to 128% of the thermal energy demand in the process can be provided, so even an ...
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Maximum possible efficiency for energy recovery from low-grade heat sources
Gas-to-gas heat exchangers are increasingly being used to recover low-grade heat (or cooling) to reduce energy requirements for space heating, drying and other applications. The efficiency of heat recovery is often limited by practical considerations which could – in principle – be reduced or eliminated by development of new materials and technology. However, this paper posits a fundamental ...
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Thermal Energy International Raises The Bar On Thermal Efficiency At Stand H41 At Energy Solutions Expo
Thermal Energy International Inc. (TEI) will be exhibiting its range of awarding winning energy efficiency products at stand H41 at the Energy Solutions Expo at Olympia, London on the 11th and 12th October. TEI’s products include its GEM venturi orifice steam traps and its flue gas condensing heat recovery economisers. Instead of utilising a valve mechanism to close off steam, the highly ...
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Ecological optimisation of an irreversible-closed ICR gas turbine cycle
The ecological function is optimised for an irreversible-closed Intercooled-Recuperated (ICR) gas turbine cycle using the theory of Finite-Time Thermodynamics by searching the optimum intercooling pressure ratio and heat conductance distributions among the four heat exchangers for fixed total heat exchanger inventory and the results are compared with those at the maximum power. Numerical examples ...
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GEM steam traps stop mechancial trap failure & reduce condensate return pressure by 51% at KNPC shuaiba refinery
Keeping on top of the constant challenge of repairing and replacing thousands of mechanical steam traps is no longer a problem at KNPC’s Shauiba Refinery in Kuwait following the successful conversion of 1,750 mechanical traps to Thermal Energy International’s award winning GEM Venturi Orifice design. In addition, KNPC, a subsidiary of the Kuwait Petroleum Association, has seen the HP ...
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Deeside laundry enjoys reduced gas bills following installation of gem steamtraps
Leading Merseyside based linen and work wear rental company and laundry, Deeside Laundry, is enjoying saving of 15% on its gas bills and lower maintenance costs following the replacement of its mechanical steam traps with award winning Thermal Energy International’s GEM venturi orifice traps. Thermal Energy International has installed 30 GEM steam traps throughout the laundry’s two ...
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Diageo installs gem steam traps
Diageo’s 18-acre Runcorn facility is making savings in energy, replacement costs and maintenance of its steam traps following the installation of Thermal Energy International’s Venturi Orifice GEM traps. Thermal Energy International (TEI) has installed a total of 71 steam traps through the plant, which has provided Diageo with a payback in less than 12-months. The Diageo Runcorn ...
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