Air-cooled condenser

New air-cooled condensers with microchannel coils and high-performance EC fans


Kaltra Innovativtechnik, a Germany-based cooling specialist, today has released the new CNM Series air-cooled condensers intended for use with various HFC and HFO refrigerants. Thank microchannel condenser coils, introduced condensers have a 25% smaller footprint and 20% less weight in comparison to the previous generation. New condensers are equipped with high-performance fans with EC motors as a standard.

Read more

Free cooling chiller

Microchannel coils in free cooling applications


Air-based free cooling uses low-temperature ambient air as a cooling medium for chilled water systems, thus providing significant opportunities to generate energy savings. The more time the chilled water system can operate in the free cooling mode, the higher the energy savings it can deliver.

Read more

Precision air conditioner

New direct expansion air conditioners with microchannel evaporators


Following the launch of super-efficient Lambda DX precision air conditioning systems, Kaltra has released the new family of compact air conditioners intended for data center and IT cooling applications using elevated return air temperatures.

Read more

Precision air conditioner

Kaltra launches new range of high-efficient precision air conditioners


Kaltra Innovativtechnik, a Germany-based provider of innovative thermal management technologies and advanced cooling equipment, today released the Lambda DX/DXU family of feature-rich, high-end direct expansion (DX) precision air conditioners with innovative microchannel evaporators and dual refrigerant circuit amongst many of its features.

Read more

Server rack cooling door

Kaltra launches high-efficiency rack cooling door solution to target data center hotspots


Kaltra Innovativtechnik, a Germany-based cooling specialist, has launched its chilled water rack-based cooling solution intended for use in high-density data center applications. The development of the In-Rack solution is in response to growing demand for high-density cooling solutions from the data center sector for energy savings and reduction in carbon emissions.

Read more

Evaporative fluid cooler

New fluid coolers to be available in Q4 2016


Jumbo Cooler fluid coolers are intended for cooling process water in industrial, commercial, and free cooling applications, and features the benefits of evaporative cooling with water recirculation, thus minimizing energy and water consumption and offer increasing free cooling hours.

Jumbo Cooler units are equipped with evaporative pads wetted via the water distribution system to pre-cool the air before passing through the heat exchanger coils. This increases the amount of heat the air can extract from the coil and, in turn, increases the cooling capacity of the unit.

Read more

Microchannel evaporator

Advanced microchannel technology for HVAC and process cooling


The HVAC and process industries are making a transition to microchannel heat exchangers. This is evidenced by the extensive use of microchannel condensers by major HVAC manufacturers and many smaller OEMs manufacturing cooling and refrigeration equipment. Significant energy efficiency improvements drive the trend, the need for smaller equipment footprints and weight, conversion to lower GWP refrigerants, and the ongoing rise in the cost of copper.
Read more

Microchannel heat exchanger

Methods of microchannel coils defrosting


Microchannel coils are becoming quite popular as an alternative to bulky fin/tube heat exchangers. For desired capacity, microchannel coils are smaller in size compared to a fin/tube heat exchangers, resulting in less refrigerant charge in the system.

The most frequent issue with which users are faced when considering microchannel coils for some applications, like heat pumps, is the issue of a shorter frosting time compared to fin/tube coils, and the further reduction in time, with each cycle due to residual water retained at the end of each defrost cycle.

Read more

Air-cooled chiller

V-shaped microchannel coils for chiller applications


The efficiency of air-cooled chiller is dictated by the condensing temperature, which may be decreased with increasing heat transfer performance of the condensing coil. Microchannel heat exchangers have become popular in chiller applications due to better thermo-hydraulic characteristics in comparison to conventional finned tube heat exchanger designs. The most straightforward way to improve heat exchanger performance is to increase its face area by combining two microchannel coils in V form.

Read more

Microchannel heat exchanger

Microchannel coils add dimension for cooling systems



by Steven Wand

Although not traditionally used in industrial process applications, microchannel designs may offer advantages over traditional coil technologies in most process cooling applications. Long considered a coil technology primarily used in commercial and residential air-conditioning, microchannel coils are being used by more manufacturers who have discovered how they can improve process cooling applications.

Read more