heat exchanger maintenance Articles
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Vivianite Heat Exchanger removal trial case study
On the vivianite-laden heat exchangers, the maintenance supervisor created a recirculation circuit and diluted JS 9325 to a fifty percent (50%) solution. They recirculated the diluted solution for 48 hours while raising the temperature of the solution to 110F. Upon opening the first heat exchanger, they observed a purple solution following by a half-inch (½”) sheet of vivianite scales popping off ...
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Improving Output and Quality with Better Maintenance
In the competitive industrial industrial landscape, companies are always striving to increase the quality and output of their products. As a result much attention is often given to refining processes, upgrading equipment, or improving management and planning. While these are certainly all effective, important factors to consider, another invaluable tool for increasing output and quality is better ...
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Case study - Heat exchanger retrofit
Overview A manufacturer of insulation films for the electronics industry needed to evaluate the capabilities of four existing oxidizers that treated emissions from its coating lines. The company was concerned that, due to oxidizer deficiencies, it would not meet regulatory requirements. The oxidizers had been manufactured by two different companies. One of them was no longer in business; the ...
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Treatment of wastewater from anaerobic digestion
The Client The customer is power plant which produces biogas from biomass and sewage farm, through anaerobic digestion and thermal recovery, located nearby Munich in Germany. The Client’s needs Biogas is produced by the fermentation of organic substances of animal and vegetal origin in absence of oxygen (anaerobic process). This process produces a stream called digestate which is an ...
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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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Advantages of plate heat exchanger
1. The heat transfer coefficient of plate heat exchanger is higher than that of other heat exchangers. When designing plate heat exchangers, some special corrugates are designed on the plates. Never underestimate the role of these corrugates. They can make the fluid flow with strong turbulence at very low flow rates. The self-purification effect of turbulence can prevent fouling. The heat ...
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Ventilator Wiki
EVR Sizing A classroom is 60㎡ with 3.2m, accommodating 40 students.What size ventilator should be taken advantage of?Place: classroom (high density)Density: the number of peopl/ acreageForm: the rangeParameter:... Energy Recovery Ventilator Installation 1. Field jointBefore construction, the customer should be informed of the intentions according to the working drawings. The classifications are ...
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LIAOYANG PETROCHEMICAL COMPANY REDUCES SCALE IN HEAT EXCHANGERS WITH SCALEWATCHER
Liaoyang Petroleum’s Olefin Factory in the Hongwei District of mainland China, producing MEG and polypropylene, is saving $65,000 a year in maintenance following the installation of the award winning Scalewatcher computerized, electronic water conditioner from Scalewatcher North America. Since the Scalewatcher units were installed onto three heat exchangers in the company’s Olefin ...
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Case study - Bakery ethanol
Overview A bread and bun bakery was faced with installing air pollution control equipment to control the volatile organic compounds (VOCs) emitted during their baking process. The local regulatory agency requires bakeries that generate over 25 tons of ethanol per year to reduce emissions by 95% by installing control devices on their ovens. The airstream that needed to be treated included ethanol ...
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