Posts

Air-cooled chiller

First installation of Lightstream Screw II low-GWP chiller lands in Latvia


In the last week of April, the first new-generation Lightstream Screw II chiller pre-ordered in end-January has been delivered to the customer in Riga, Latvia.

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Lightstream Screw II air-cooled chiller

Kaltra set to launch next-generation screw chillers


Kaltra has overhauled its screw-compressor chillers to deliver higher operational efficiency with the new Lightstream Screw II range. Improvements include the latest screw compressors by Bitzer with smooth capacity regulation, redesigned refrigeration circuit, and evaporators.

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Screw chiller

Capacity control for screw-compressor chillers


Capacity control is in high demand for many cooling systems where cooling loads are not constant, and adjusting the system’s capacity to meet the prevailing load is essential for optimum efficiency. Efficiency primarily depends on compressor suction and discharge pressures, with the influence of secondary factors like useful and non-useful superheat and subcooling. As the screw compressor unloads, its suction pressure lowers (at the fixed condensing temperature), and efficiency decreases. Capacity control mechanisms allow maintaining the desired suction pressure by adjusting the refrigerant flow through the compressor.

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Free cooling chiller

Kaltra extends the capacity of its flagship free cooling chiller range


Kaltra has extended the capacity range of its Lightstream Freecool inverter chiller to 1800kW of refrigeration. Lightstream Freecool chiller lineup was introduced in 2017, initially with a capacity range of 450 to 1200kW.

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Air-cooled chiller R450a

Kaltra adopts R450a to screw chillers


Kaltra continues to move proactively to refrigerants with a lower global warming potential with the introduction of R450a-driven air-cooled chillers.

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Variable-speed water-cooled chiller

Kaltra extends the range of water-cooled chillers with inverter models and adds R513a


Kaltra is delighted to make an exciting new addition to their chiller portfolio – Powerstream Screw Inverter family of water-cooled chillers.

The chillers feature fixed-speed screw compressor combined with an inverter-driven one.  The unit starts with the inverter compressor; when the cooling demand exceeds its capacity, the second compressor starts up at full speed to ensure the best possible efficiency. Capacity regulation is carried out by the inverter-driven compressor.

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Free cooling chiller

Air conditioning chiller replacement for a movie theater in Eindhoven


The air conditioning chiller supporting the movie theatre building in Eindhoven, The Netherlands, was the original equipment that has reached the end of its service life. To address the recurring maintenance issues associated with air conditioning system, the building owner has decided to replace existing equipment, including the original chillers installed at the roof gantry, with a modern energy-efficient system.

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Cooling plant

Kaltra expands chilled water plant at multi-tenant commercial centre


With the expansion of its premises, a large commercial centre located in Marseille needed to increase the capacity of its chilled water plant to meet the growing demand for chilled water production. Opened in 2014, Les Terrasses du Port occupies the area of more than 60,000 square meters and is a home to around 200 stores, restaurants, and food courts.

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Free cooling chiller

Retrofitting air conditioning system with a free cooling chiller


Several concerns including inefficient energy use and growing maintenance costs initiated the need for a chiller replacement at Business Park Vienna, Austria. Having been installed for a long period, and being one of the largest energy consumers in a multi-story building, the existing air-cooled chiller did not operate efficiently under part load conditions such as non-business hours air-conditioning.

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LPG recovery plant cooling

Kaltra rolls out the second stage of chilled water plant at Sonatrach LPG recovery


Following the initial installation of process cooling system at the GP2Z industrial area in 2016, Kaltra continues to extend the facility and adds new equipment to increase its overall capacity to 5MW cooling.

Initially equipped with air-cooled Lightstream series chillers, GP2Z chilled water production plant will be supplemented with high-reliable units based on screw compressors. Kaltra will integrate new equipment with existing automation system implemented during the first stage of the project.

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Free cooling chiller

Kaltra R513a chillers now available


Following the recent announcement of its first R513a-compatible chiller range, Kaltra has revealed the availability of its Lightstream Freecool inverter-driven chillers with refrigerant R513a in addition to regular R134a and low-GWP R1234ze.

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Inverter chiller

Kaltra announces a new, broad screw chiller range


This week Kaltra announced its new chiller family designed with screw compressors, a successor of well-known Lightstream Screw range.

With different screw compressors, inverter-driven and fixed-speed, Kaltra launched its widest chiller lineup which includes R134a and R1234ze models, 160 in total. Units with R513a refrigerant are available by request. New Lightstream Screw V chillers cover all applications in the capacity range from 200 to 3600kW. In addition to process cooling and air conditioning tasks, the new screw chillers are addressed for mission-critical applications where the reliability and precise temperature control are the crucial factors.

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Free cooling chiller

Free cooling chillers improve data center energy efficiency


Over time, increasing power density and growing number of installed servers had increased the heat load on Telecity data center cooling system which operates on a 24/7 basis 365 days on the year. Existing fixed-speed chillers installed during the building’s construction could not meet the cooling demand and provide the necessary redundancy Telecity required. As a result, the cooling system needed to be upgraded to keep pace with the data center’s growth.

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Air-cooled screw chiller

New chillers for Arla dairy processing plant


Processing of milk products requires the correctly designed process in order to attain end products of the highest quality. Processing of milk involves pasteurization, a technique that destroys pathogens in milk and makes it safe to drink. Pasteurization necessitates the use of chilled water to cool down the milk after the heating-up process to prevent the deterioration. During the cooling process, the pasteurized milk has to be cooled to 0°C. Thus, the production of chilled water for dairy processing operations is a vital part of producing safe and high-quality consumer products. Tight thermal control is also a crucial requirement for dairy processing facilities.

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Variable-speed chiller

Kaltra’s advanced cooling solutions help realize massive power savings


At the Sanofi/France production site, the original chilled water plant functioned as initially intended, but a steady decline in energy performance and sharp increases in maintenance costs of the plant equipment were experienced by the customer. Prior to starting the upgrade project of the plant, the owners made the decision to invest by using technology giving the highest return over the lifecycle of the equipment.

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Air-cooled chiller

Kaltra screw chillers serve four-star hotel in Malaga, Spain


In the last week of 2017, Kaltra Innovativtechnik completed installation and commissioning work on the chiller replacements for a four-star luxury hotel located in Malaga, Spain.

The customer experienced inadequate comfort air conditioning from the existing air-cooled chillers and escalating operating costs. The hotel operator called on Kaltra for a replacement to reduce energy consumption, improve the reliable, smooth and quiet operation of the system.

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Free cooling chiller

Kaltra announces the new Lightstream Freecool chiller family


Kaltra Innovativtechnik, a German-based provider of innovative thermal management technologies and advanced cooling equipment, is excited to announce the launch of the new lineup of freecooling chillers based on frequency-controlled compact screw compressors and microchannel technology adopted for both condensing and freecooling coils.

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Logistics hub cooling

New logistics hub near Erlangen served by Kaltra chillers


The new logistics hub located near Erlangen, Germany, serves more than 40 international customers and guarantees just-in-time delivery for the clients across Europe. The new center with approx. 35,000m² is dedicated to storing bulky materials under controlled environmental conditions provided by Kaltra Lightstream Screw free cooling chillers.

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Variable-speed chiller

Kaltra to announce the updated Lightstream Screw air-cooled chiller family


Kaltra is excited to announce the launch of the updated lineup of Lighstream Screw chillers based on fixed-speed or inverter-driven compact screw compressors, which have been improved to perform efficiently and optimally under every climatic condition.

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