The ENR/ENRF and SBS/SBSF are chillers from our Cooling Plus Energy series with air

cooled condensers operating on R-410A, which can also come with complete “Free-cooling” sections (only for models ENRF and SBSF) to guarantee energy savings.

The ENR/ENRF units are equipped with either stainless steel plate type, self-cleaning coaxial or shell & tube evaporator, aluminum finned copper condenser, axial fans and rotary compressor (mod. 001÷005) or scroll compressors (mod. 008 ÷480, up to 4 compressors) installed on one refrigeration circuit (mod. 001÷100) or two independent refrigeration circuits (mod. 130÷480).

The SBS/SBSF models are all equipped with shell & tube evaporator, modular aluminum finned copper coil condensers, mounted in V configuration, axial fans and scroll compressors (up to 6 compressors) installed on two or on request, three independent refrigeration circuits.

HVAC designs for Data Centre – Total Load 1.5 MW

In the refrigeration and air conditioning sector continuous attempts are made to reduce the energy consumption of all systems by improving the management of

Improved energy efficiency of air cooled chillers

New ENR/ENRF SERIES from 1 to 480 kW

cooling power, optimizing the flow paths of water-glycol and providing greater temperature accuracy. Recent research has developed the use of environmentally friendly refrigerants with lower environmental impact and excellent thermal performances. However, large refrigerant equipment still have very high power requirements, especially those demanded from very large air or water cooled chillers with screw compressors. The utilization of screw compressors is traditionally very high amongst larger capacity chillers (>300 kW) and therefore the optimization of partial load performance, which is a condition present in almost all refrigeration plants at various stages throughout the year, is deemed as the goal by Hitema. A modern and intelligent technology is to control the large power demands of screw compressors by inverter driven electronic devices.

International businessHitema is a leading manufacturer of highly customized refrigeration units. The company’s global presence has ensured the development of a technologically advanced, efficient, economical and environmentally friendly product range. Figure 9 illustrates how Hitema is widely present in the international market.

Today there are many applications New SBS/SBSF SERIES from 240 to 1000 kW

HITEMA SRL Via Mons. G. Babolin 14, Z.I. San Gabriele 35024 Bovolenta (Padua)Tel. 049 5386344 R.a. 12 linee, Fax. 049 5386300, info@hitema.it, www.hitema.it

In the last 10 years awareness in energy saving has continuously increased in both industrial and HVAC applications, at Hitema we strive to reduce the electrical consumption of cooling equipment using the most effective, innovative and efficient techniques. In the refrigeration and heat pump sectors European standards and directives are now applied to increase the standard of materials used, increase innovation and in the application of new technologies to improve refrigeration system efficiencies.

4 | November-December 2014 | Plastics & Rubber Review

that require effective and innovative solutions to reduce the absorbed power requirements of the refrigeration hardware in process cooling industries, commercial air conditioning and data centres facilities. The optimum operation of the refrigeration equipment at partial loads is especially significant when average annual ambient air temperatures are between +5°C and +20°C, typical for the vast majority of European countries. For even lower ambient temperatures, the combination of inverter technology coupled with that of free-cooling, whereby chilled water can be produce by using fan energy only, can also be effectively used to produce chiller units with even greater efficiencies than previously considered possible.

Improved energy efficiency of air cooled chillers HITEMA

In the last 10 years awareness in energy saving has continuously increased in both industrial and HVAC applications, at Hitema we strive to reduce the electrical consumption of cooling equipment using the most effective, innovative and efficient techniques. In the refrigeration and heat pump sectors European standards and directives are now applied to increase the standard of materials used, increase innovation and in the application of new technologies to improve refrigeration system efficiencies.

The ENR/ENRF and SBS/SBSF are chillers from our Cooling Plus Energy series with air cooled

condensers operating on R-410A, which can also come with complete “Free-cooling” sections (only for models ENRF and SBSF) to guarantee energy savings. The ENR/ENRF units are equipped with either stainless steel plate type, self-cleaning coaxial or shell & tube evaporator, aluminum finned copper condenser, axial fans and rotary compressor (mod. 001÷005) or scroll compressors (mod. 008 ÷480, up to 4 compressors) installed on one refrigeration circuit (mod. 001÷100) or two independent refrigeration circuits (mod. 130÷480).

The SBS/SBSF models are all equipped with shell & tube evaporator, modular aluminum finned copper coil condensers, mounted in V configuration, axial fans and scroll compressors (up to 6 compressors) installed on two or on request, three independent refrigeration circuits.

HVAC designs for Data Centre – Total Load 1.5 MW

In the refrigeration and air conditioning sector continuous attempts are made to reduce the energy consumption of all systems by improving the management of cooling power, optimizing the flow paths of water-glycol and providing greater temperature accuracy. Recent research has developed the use of environmentally friendly refrigerants with lower environmental impact and excellent thermal performances. However,

large refrigerant equipment still have very high power requirements, especially those demanded from very large air or water cooled chillers with screw compressors. The utilization of screw compressors is traditionally very high amongst larger capacity chillers (>300 kW) and therefore the optimization of partial load performance, which is a condition present in almost all refrigeration plants at various stages throughout the year, is deemed as the goal by Hitema. A modern and intelligent technology is to control the large power demands of screw compressors by inverter driven electronic devices.

International businessHitema is a leading manufacturer of highly customized refrigeration units. The company’s global presence has ensured the development of a technologically advanced, efficient, economical and environmentally friendly

Big Evolution Chiller SERIES EET and ITC up to 1.5MW

New ECWH SERIES from 260 to 1500 kW

product range. Figure 9 illustrates how Hitema is widely present in the international market.

Today there are many applications that require effective and innovative solutions to reduce the absorbed power requirements of the refrigeration hardware in process cooling industries, commercial air conditioning and data centres facilities. The optimum operation of the refrigeration equipment at partial loads is especially significant when average annual ambient air temperatures are between +5°C and +20°C, typical for the vast majority of European countries. For even lower ambient temperatures, the combination of inverter technology coupled with that of free-cooling, whereby chilled water can be produce by using fan energy only, can also be effectively used to produce chiller units with even greater efficiencies than previously considered possible. v

AHA SERIES with turbocor compressorsfrom 245 to 1140 kW

Plastics & Rubber Review | November-December 2014 | 5