This week Kaltra is launching air-cooled refrigerant condensers of the Bora VS series equipped with new, twin-slab microchannel heat exchangers operating with a counterflow of refrigerant and air and arranged in 4-coil V-banks. This innovative solution was successfully adopted earlier in the second generation of Lightstream air-cooled chillers.
Model Bora XL air-cooled condensers, designed for outdoor applications, provide an efficient and practical solution to the selection of condensing equipment. These condensers feature an innovative design aiming to increase the performance and energy efficiency to meet today’s industrial and commercial refrigeration’s stringent needs.
The XL range is a further development of Bora series air-cooled condensers which offer to the customers consistently high performance combined with reduced footprint and low refrigerant charge. Bora XL condensers have been designed to use with both traditional and low-GWP refrigerants, including R134a, R410a, R452b, R513a, R449a and more. The range includes models in the nominal capacity range from 150 to 1850 kW with two available sound level versions: standard low noise and extra low noise.
Kaltra is now taking one step further by introducing the new flatbed, low-charge air-cooled condensers for use with low-GWP refrigerants, including R449a, R454a, and R454c.
To meet market requirements to reduce global warming potential and increase the energy efficiency of cooling equipment, Kaltra has engineered a new line of air-cooled condensers with market-leading features at reasonable initial and running costs.
Supermarkets are one of the most energy-intensive types of commercial buildings. Supermarket refrigeration systems consume the significant amount of energy to maintain freezing temperatures for a variety of items intended for human consumption on a 24 hours a day, seven days a week basis, which implies that the refrigeration equipment is never shut off. In a typical supermarket, sales area of 1000m² consumes around 300.000kWh annually for refrigeration, including the power consumed by compressors, condensers, coolers, and evaporator defrosting.
With the development of evaporative air-cooled condensers and dry coolers, Kaltra sets new standards in the field of efficient and environmentally safe cooling.
The power saving potential of the new units is based on the evaporative cooling principle, in which the air temperature drops when the air takes up water by transforming it from liquid to vapor.
Mistral is the next generation of table-type air-cooled condensers and dry coolers that cover cooling capacities from 5kW up to 1500kW and intended for use with standard refrigerants, ammonia, and carbon dioxide.
One of the cornerstones of Mistral condensers/dry coolers range is the new high efficient heat exchangers with up to 6kW/l performance and reduced refrigerant charge.
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.
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.
