heat exchanger unit Articles
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Cumulative exergetic assessment of LPFO utilised steam boilers
This paper relates to a study on the energy and exergy resources, transfers, consumption and losses in the combustion and heat exchanging units of industrial steam boilers. Mass, energy and exergy analyses, which included the physical and chemical exergies of material streams, were used to investigate the energy resource utilisation of Low Pour Fuel Oil (LPFO) in industrial steam boilers. The ...
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Two non-dimensional exergy transfer performance parameters of heat exchanger
A new non-dimensional performance parameter, exergy transfer units number, which is in conjunction with exergy transfer effectiveness, is proposed to evaluate exergy transfer performance of heat exchangers operating above/below the surrounding temperature. The analytical expressions of exergy transfer units number are derived, and the relationship between exergy transfer effectiveness and ...
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Harbin daoli - District Heating, China case study
In cooperation with ABB A/S Skovlunde and APV A/S Kolding DESMI A/S replaced large parts of the heating network in Harbin in China. Daoli is one of the seven districts of Harbin, the largest city in North East China with approx. 11 million inhabitants. It is known for its bitterly cold winters and is often called the “Ice City” – so therefore the city welcomed this district ...
By DESMI A/S
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The angelini group makes GEM its steamtrap of choice
The international pharmaceutical and health-care group, Angelini, has made Thermal Energy International Inc’s GEM venturi orifice steam trap its steam trap of choice following three years extensive testing. Now Angelini’s pharmaceutical plant, located in Ancona in central Italy, has instructed its staff and maintenance contractors to replace its mechanical traps with the GEM venturi ...
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Understanding and preventing heat exchanger fouling
When operating in exceptionally challenging conditions, or handling difficult materials such as sewage and wastewater sludges, even the best designed heat exchangers will be susceptible to fouling. Understanding the different types of fouling and what causes them will help engineers and operators pick the best type of heat exchanger for their particular application and keep it running in optimum ...
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A novel underground solar thermal heat storage unit cum heat exchanger for non air-conditioned buildings
A novel passive space conditioning configuration is presented, integrating a Solar Collector System, Underground Storage Tank and Novel Heat Exchanger. This Underground Solar Thermal Heat Exchanger (USTHE) provided improved sensible heating/cooling of air by employing a Novel Heat Exchanger (NHX). The dynamic performance of the storage tank in USTHE is modelled using the finite difference method ...
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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 - 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 reduce their operating ...
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Italian Pharmaceutical Company Enjoys Fast Payback on GEM Steam Traps
A leading global healthcare company has revealed that it has achieved a 12-month payback on Thermal Energy International’s GEM venturi orifice steam traps installed at its manufacturing facility in Italy. Thermal Energy International has installed a total of 92 steam traps throughout the facility’s process plant, which has removed the problems of mechanical steam trap failure and ...
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A Cleaner Energy Future
As renewable energy plays an increasingly important role in the world’s energy portfolio, the standards of ASTM International Committee E44 are helping to pave the way for innovation in clean energy sources. A growing population and improving living standards around the world are causing significant increases in energy demand and competition for fossil fuels. These escalating energy ...
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