Gas Heat Exchanger Articles & Analysis
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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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ORC system for recover engine thermal waste
Heat recovery from engines’ thermal waste The heat sources available in engines are two: exhaust gas and cooling jackets. Exhaust gases: high temperature Cooling jackets: low temperature It is possible recover the exhaust gas with a heat exchanger while the cooling jackets can be directly exploit in the form of ...
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Clarke Energy and INNIO Jenbacher Powering New Pasta Factory in Douala, Cameroon - Case Study
Douala, Cameroon, May 2021, Clarke Energy and INNIO Jenbacher are delighted to announce the successful commissioning of a high-efficiency INNIO Jenbacher gas engine to power a new Pasta factory in Cameroon. The combined heat and power (CHP) project will be executed in two phases. The recently completed first phase was installation and commissioning of the containerised module, producing a ...
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M+M Power, Milton Farm, Marches Biogas - Case Study
Milton Farm is set within the heart of Herefordshire’s scenic countryside, owned by the Morris family whom have been farming there since 1960. As a means of diversifying from the mainstream farming business, the family choseMarches Biogas to design, build and maintain the newanaerobic digestion (AD) plant. Clarke Energy supplied, installed and maintain GE’s Jenbacher 312 gas engine ...
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Organic Rankine Cycle (ORC)
Biogas/Heat-to-Power Application using a Dreyer & Bosse CHP power unit Location: Trechwitz, Germany Site Gross Power Output Range 500Kwe + 30-35kWe from Electratherm ORC Thermal Heat Input Range: ?375-450kWt Hot Water Input Range:? 90-95°C (118-203°F) Hot Water Flow Range:? 39 m3/hour (172 GPM) Ambient Temperature: 0-15°C (32-59°F) ElectraTherm installed its first ...
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Control Problems Waste Feeds in Fluid Beds (PDF - File size 71K)
High concentrations of alkali salts, iron, and phosphorus in sludge can cause operating problems in fluid-bed incinerators. Understand how clinker and scale form, and how to prevent difficulties. A major advantage of a high-temperature fluid bed (HTFB) is its ability to accept unsteady feed. Because a large quantity of heat is stored in the granular bed material, fluctuations in feed rate, ...
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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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Using biogas for combined heat and power
An integral part of the majority of anaerobic digestion facilities across the world is the CHP combined heat and power (CHP) engine. For the first time builder of a biogas plant, it is often neglected as the focus is on reducing the capital costs of the installation. However, the engine is integral to the plant, and is the key component in the production of renewable electricity, hence the ...
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Using biogas for combined heat and power
An integral part of the majority of anaerobic digestion facilities across the world is the CHP combined heat and power (CHP) engine. For the first time builder of a biogas plant, it is often neglected as the focus is on reducing the capital costs of the installation. However, the engine is integral to the plant, and is the key component in the production of renewable electricity, hence the ...
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The effect of precooling inlet air on CHP efficiency in natural gas pressure reduction stations
Almost all pressure reduction stations in Iran use expansion valves to reduce the natural gas pressure, which leads to wasting large amount of exergy. In this paper, a system is proposed which includes the modification of a conventional pressure reduction station with the addition of a turbo expander and a gas turbine for power recovery and generation. The next step is investigating the effect of ...
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The benefits of heat regeneration in heat exchanger systems
Heat exchangers which employ heat recovery or regeneration should not be confused with ‘regenerative heat exchangers,’ which are a specific type of heat exchanger. What we mean by heat regeneration at HRS is the recovery of as much surplus heat (or cooling capacity) as possible after the primary function of the heat exchanger has been performed. This can then be reused to either ...
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HRS helps AD plant tap into additional heat from existing CHP
Operators of anaerobic digestion (AD) plants know how important it is to optimise energy use across all stages of the process. That is why many recapture as much heat as possible for reuse elsewhere, including from the hot exhaust gases generated by the combined heat and power (CHP) engines which turn the biogas from the AD plant into useful heat and electricity. Heat exchangers used for exhaust ...
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On-Vehicle Exhaust Gas Cooling in a Diesel
ABSTRACT A diesel emissions control system built and tested on an industrial forklift truck is described. The system utilizes a pleated media type diesel soot filter. The temperature limit of the filter material is well below the temperature of the exhaust gas. Therefore, cooling of the exhaust gas is necessary. A finned-tube heat exchanger is included in the system to cool the exhaust gas to ...
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Client - Automotive Part Casting Manufacturer, Kentucky, USA
As part of its energy review this global multi-national sought a means by which it could reduce its aluminium furnace running costs. After a period of technical consultation an Econotherm® GA 330 Gas to Air smooth pipe heat exchanger was selected for the installation. The original business case was approved on the basis of a $100K per annum saving against a total estimated project costs of ...
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Syngas monitoring - Purpose of gas monitoring in DRI plant
The use of process gas online monitoring systems at locations such blast furnace gas outlet, converter off gas exhaust and coking gas outlet is very reasonable in order to analyse the fuel gases composition by measuring the concentration of CO, CO2, O2, N2, CH4, and H2. There from the calorific value BTU and the Wobbe Index WI can be accurately calculated. Modern steel plants uses dedicated ...
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Structure of Thin-Walled Multi-Channeled Parts Brazed Using Amorphous Foils
ABSTRACT Vastly different microstructures are formed in 304LN austenitic and Fecralloy® ferritic stainless steel joints brazed with Ni-15Cr-1.4B-7.25Si (MBF-51) and Ni-19Cr-1.5B 7.3Si (MBF-50), filler metals, respectively. These joints were cut from an industrial heat exchanger and a metallic catalyst support that were subjected to a short optimal brazing cycle in a vacuum furnace. A detailed ...
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Case study - Coater replaces old oxidizers With energy efficient systems
Overview Emission control and the operating costs associated with meeting environmental regulations were nothing new for the Coated Products Division of Brady Corp. The company has been manufacturing coated films for nearly 60 years, demonstrating over that time a commitment to pollution prevention and emission reduction programs. But these considerations were magnified when the Milwaukee ...
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