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A Heat exchanger is an essential thermal machine

, 29 2019 05:47:29 +0200

A Heat exchanger is an essential thermal machine employed for industrial cooling, with several types existing: shell and tube, plate exchangers, spiral heat exchanger, block and fin heat exchangers. Heat exchangers are crucial equipments for industrial thermoregulation, but also required in residential and commercial air-conditioning plants, achieving heat transfer between two fluids with different temperatures: Water Cooled Evaporators heat exchangers are indeed passive thermal machines, allowing the transfer of heat energy between fluids, thanks to an existing temperature gap.

In a plate heat exchanger, the fluids are separated by a thin metallic screen, a plate, wich allows the heat transfer between the two fluids flowing on its sides separately. Corrugated plates increase thermal transfer, extending exchanging surface area and boosting energy dissipation thanks to turbulence prompted in flowing fluids and higher transmission coefficients.

The cold fluid gets heated in contact with the plate, gaining heat from the fluid to be cooled, and is then carried to a cooling system (a chiller, or dry cooler or evaporative towers, for example), bringing the fluid at a lower temperature.

Plate Heat exchangers offer several advantages, being compact and smaller, and easily sizable, also to fit new and changed working project conditions leading to a higher thermal duty, with an increased thermal load to be managed. Strengthening a heat exchanger is indeed achieved simply adding new plates, in order to answer a growth in production, and then a growth in the quantity of heat generated, or due to changes in the thermal conditions of the cooling cycle, for example laking of cooling air or water at a certain temperature, meaning a loss in dissipating capacity of the cooling system itself.

It's plain that is possible to strengthen an existing heat exchanger only in case of an openable and inspectable gasketed exchanger. If a brazed plate exchanger was the first project choice, it won't be possible to increase the thermal load capacity once it is installed, and an alternative solution has to be found to manage an increased thermal duty (adding others exchangers, more powerful or bigger exchangers).

In a plate inspectable heat exchanger is easy to vary the thermodinamic state of the machine, adding new plates to the existing ones, increasing thermal transfer surface area having extra dissipating capacity. Transfer heat surface area needed to perform the thermal duty in a heat exchanger is usually calculated in function of exchange process characteristics and thermophysical properties of the fluids. Speaking of strengthening an existing heat exchanger, kind of fluids and thermal process are supposed to remain the same, and the only variable is the amount of heat load the machine has to dissipate, or also a new temperature gap between the fluids.

Strengthening a plate heat exchanger is then a quite simple operation, only requiring a correct evaluation of the new thermal load or the new fluids temperatures, in order to determine the right additional thermal transfer surface area and the number of plates that can be inserted to obtain the thermal performance needed.

Strengthening a heat exchanger requires a series of operations, that in the same time allow to check operability and affordability of the exchanger, and in case regenerating it cleaning and changing damaged parts (gaskets or corroded plates), ensuring best performances of the thermal machine at the end of the operation.

Exchanger opening and cleansing
Plates and gaskets check and control
Addition of new plates
Closing and pressure test

Strengthening a heat exchanger requires usually only one working day, with very low machinery and plant downtime.

The 'Global and Chinese Variable Displacement Piston Pump Industry

, 28 2019 03:36:17 +0200

The 'Global and Chinese Variable Displacement Piston Pump Industry, 2011-2021 Market Research Report' is the detailed comprehensive analysis of the current state of the global Variable Displacement Piston Pump industry with a focus on the Chinese market. The report provides deep knowledge of historical information, forecasts, company profiles, technologies, market drivers, market trends and related parameters within the Variable Displacement Piston Pump Industry. The report includes accurate and sharp information on global and Chinese market which would help to take better decisions and make positive paces for your associationto possible micro levels. The report covers various sectors semiconductors, energy, pharmaceuticals, chemical, technology, food and beverages etc.

In the starting of the report provides overview of the industry including definition, products, applications, technology, its end users etc. Then, the report represents major payers of the Chinese market in at the intentional level. In this part, the report includes company profile, product stipulation, installed capacity, latest trend, competitor’s strategies, shifting product dynamics form the point of view of consumers and 2011-2016 market shares for each company. The reports represent statically data, generated revenue, production capacity, supply and demand, profit and loss, import and export and many more. The further market is segmented on basis of types, products, technology, end user, application, and geography whichever applicable for the competitive landscape analysis.

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The report estimates 2016-2021 market resent trends for Variable Displacement Piston Pump industry. Our aim provides deep and accurate analysis about the different topics related to Variable Displacement Piston Pump industry. The report consists of detailed analysis of upstream and downstream demand, market dynamics, quantitative forecasting and forward-looking insight of the market.In the end,Chiller the report usestratified research methodology for a new project of Variable Displacement Piston Pump Industry. The reports strive to serve the overall research requirement of clients for 2011-2021 global and Chinese Variable Displacement Piston Pump industry. It is covering all important parameters to sustain in a competitive edge.

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Agoda.com Asia’s global hotel booking site

, 04 2019 05:36:54 +0200

Agoda.com, Asia’s global hotel booking site and part of Nasdaq-listed priceline.com Inc. (Nasdaq:PCLN), today announced a partnership with Delta Air Lines (NYSE: DAL).
Semi-Hermetic Compressors Through the partnership, members of Delta's SkyMiles Frequent Flyer Program can earn miles from SkyMiles when they book a hotel through Agoda.com.

Delta Air Lines is the world's largest air carrier, serving more than 160 million travelers a year. With a fleet of more than 700 aircraft, Delta has major international hubs in Amsterdam, Narita Japan, and Paris, plus several hubs across the American continent. Delta's network encompasses 346 destinations in 64 countries.

Now in its 30th year, SkyMiles is one of the longest-running and most successful loyalty programs in the travel industry. The program offers members multiple mileage-earning opportunities including 100% miles on every purchased fare when flying with Delta, Delta Shuttle, the Delta Connection, and by flying with SkyTeam® alliance partners. Additional mile-earning opportunities are offered through other airline partners, hotels and bank partners including the co-branded credit cards in Guam, South Korea and the Philippines. Delta is introducing more ways to redeem miles, including airline tickets, car rentals and hotel stays for customers.

Through a co-branded, multi-lingual landing page available in five languages, Delta customers are able to view Agoda.com's inventory of more than 130,000 instantly-confirmable properties, allowing for easy, convenient hotel booking. For non-English speaking customers, Agoda.com offers hotel booking services in 32 different languages including Chinese traditional and simplified, Japanese, Korean, Thai, French and German. Not only can Delta members earn SkyMiles by booking their hotels through Agoda, they will also earn Agoda Rewards Points, worth four per cent the price of their stay.

Managing Director North Asia at Agoda.com Mr. Wilfred Fan said, "We are excited that through this partnership Delta will use its extensive promotional and loyalty-based network to help their customers access the thousands of great hotel deals on Agoda.com. Our website and customer support operations are available in all languages spoken in Delta and SkyTeam's Asian destinations."

For more information on the SkyMiles program, Medallion status and mileage redemption options, visit delta.com. For more information about Agoda.com, contact PR
Agoda Company Pte Ltd (www.agoda.com) is a leading Asia-based, online hotel reservations company, which specializes in securing the lowest discount hotel prices. Agoda.com is part of Priceline.com (Nasdaq:PCLN). Agoda's network includes more than 130,000 hotels worldwide. The multinational staff of more than 600 professionals, located throughout the world, provides a first-rate reservation service that uniquely combines local knowledge and local connections to provide the best hotel deals to both business and leisure travelers.

In addition, Agoda customers participate in the Agoda Rewards Program, earning further discounts and free stays. Unlike programs that limit travelers to a single chain, the Agoda Rewards Program allows customers to redeem Rewards Points at thousands of hotels around the globe, at any time. Semi-Hermetic Compressor & Condensing Units A member of the Pacific Asia Travel Association (PATA), Agoda's aim is to promote travel by making it more affordable and more accessible to more people.

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, 04 2019 05:30:54 +0200

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