waste heat Articles

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Field monitoring and numerical modeling as tools in effect-evaluation of waste heat and chlorination byproducts via cooling water discharges

by DNV GL Energy  (May 25, 2010)

Power plants and other industrial facilities apply cooling water to remove waste heat from their condensers and heat exchangers. These industries are obliged to predict the thermal and environmental effects on the water bodies on which the discharge takes place in order minimize negative impact on aquatic organisms. The general approach of EC ...

Maximising biogas in anaerobic digestion by using engine waste heat for thermal hydrolysis pre-treatment of sludge

by Cambi AS  (Dec. 18, 2009)

EXECUTIVE SUMMARY Dublin's Ringsend WWTP was designed to serve a population of approximately 1.2 million pe with a sludge production of 37,000 dry tonnes per year after upgrading to full secondary treatment. Several technical solutions were put forward as part of a Design, Build, Finance and Operate (DBFO) competition, with the chosen solution ...

Energy and exergy analysis of an Automobile Heat Pump system

by Inderscience Publishers  (Oct. 20, 2008)

This study deals with energy and exergy analysis of an Automobile Heat Pump (AHP) system using R134a as the working fluid and ambient air as a heat source. An experimental AHP system consisting of original components from an Automobile Air Conditioning (AAC) system and some extra equipment was developed and instrumented. The system was operated in ...

Steam injection heating of biosolids & sludge for Anaerobic Digestion

by ProSonix  (Feb. 2, 2009)

The article focuses on the integration of Direct Steam Injection (DSI) heating as a method for heating of Municapal, Industrial, Food, & Agricultural wastewater streams. Common applications are anerobic digestion, biogas production, waste de-activation, and FOG (Fats-Oils-Grease) heating. Topics covered include how DSI works, how to select a ...

Influence of Decreasing Heating Value on MSW Combustion

by AquaConsoil  (Jan. 1, 2000)

Test runs in the TAMARA test facility to investigate the influence of decreasing lower heating value on the combustion of waste showed that the combustion quality could easily be kept constant at heating values exceeding 5 MJ/kg. The burnout of grate ashes and flue gas had slightly fallen off at lower heating values whereas the level of PCDD/F in ...

Small-scale heat and power at B.C. mills

by BioEnergy Conference & Exhibition  (Jun. 1, 2008)

Fred Scott introduced the B.C. Bioenergy Network (BCBN) as an alliance between Pristine and Nexterra Energy Corp. BCBN is a network of 15–20 individuals, with 10 MW power plants located across B.C. at mill operations in forest communities. Nexterra has developed a proprietary gasification technology that “takes wood waste material and [produces] ...

Spilled heavy grade heating oil case study

by Bio Systems Europe  (Aug. 9, 2013)

Heavy fuel oil escaped from a storage tank and entered the drainage system of a large creamery. This material passed to the aerated balance tank which precedes an activated sludge system treating the factory waste waters. Alerted to the spillage the operators were able to shut off the flow to the activated sludge system but not before a ...

Heat Recovery for Reuse in Proofing Ovens: Buttercup Bakeries

 By collaborating with a major tertiary research institution, RMIT University, Buttercup Bakeries has been able to apply new heat recovery technology suitable for bakery and other industrial applications. The initiative has resulted not only in cost and energy savings but more efficient oven heating boiler operations. Background Buttercup ...

Energy Savings on Process Heating Units Case History

by Control Instruments Corporation  (Oct. 8, 2013)

The Customer This specialty chemical company is a leading supplier of performance polymers. Their products are used in a wide range of applications including adhesives, coatings, consumer and personal care products, sealants, lubricants, medical, packaging, automotive, paving, roofing and footwear products. The Project The company was ...

Domestic heating systems are more efficient with Scalewatcher

by Scalewatcher North America Inc  (Jan. 4, 2012)

In hard water areas plumbing, hot water systems and appliances quickly become encrusted with limescale resulting in increasing energy bills and the early renewal of boilers and appliances.  The award-winning, patented, Scalewatcher water-conditioner, from Scalewatcher North America, offers a simple and permanent solution to limescale thereby ...

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