Pressure Transducers and Their Role in Server Farm Applications

 

Pressure Transducers Boost Server Farm Efficiency

 

Computer Server Farm Cooling

 

Server farms are clusters or collections of computer servers that link together to far surpass the abilities of a single server and to provide backup for servers within the farm. Server farms have come to replace mainframe computers for large databases and are used extensively in each of the following industries:

 

  • Web Hosting
  • Finite Element Analysis (FEA)
  • 3D Modeling and Rendering
  • Business Networks

Server farms are rated for efficiency on the energy requirement to cool the server farm per unit of energy consumed by the server farm. Some large server farms estimate 1 watt of power to cool a server farm per 2 watts of power consumed by the server farm itself; thus, the importance of increasing cooling efficiency is obvious.

 

Refrigeration and HVAC for computer farm cooling systems all utilize thermodynamic refrigeration cycles and temperature and pressure measurement and control.

 

Pressure Transducer Usage in Computer Server Farm Cooling for Specialty Refrigeration in HVAC and Refrigeration

 

The Refrigeration cycle operates as follows:

 

First, cool, low-pressure, gaseous refrigerant enters the compressor. Hot, high-pressure gaseous refrigerant exits the compressors and moves to the condenser. Once there, the hot refrigerant releases heat outside the system. The hot, high-pressure liquid then leaves the condenser coil and enters the expansion valve, which reduces the pressure and temperature of the refrigerant. The cold (low-pressure) refrigerant absorbs inside heat to cool the system environment, and refrigerant leaves the condenser as a cool, low-pressure gas. The cycle repeats.

 

Refrigeration superheat is the difference in refrigerant temperature at the evaporator outlet and the boiling temperature of the refrigerant at a measured pressure. By monitoring the temperature and pressure of the refrigerant with pressure transducers as it leaves the evaporator and as it enters the compressor, the superheat can be calculated and the expansion valve can be made to increase or decrease the amount of refrigerant used to minimize the superheat and increase refrigeration efficiency.

 

Pressure Transducer Applications for Computer Server Farm Cooling in Specialty Refrigeration Applications

 

Pressure Transducers are used for Computer Server Farm Cooling in HVAC and Refrigeration in the following Specialty Refrigeration Applications:

 

WIKA R-1 & AC-1 Pressure Transmitters for HVAC&R
  • Pressure measurement and control at evaporator outlet
  • Pressure measurement and control at compressor inlet

Specialty Refrigeration for Computer Server Farm Cooling in HVAC and Refrigeration applications call for pressure transducer compatibility with standard refrigerants. Pressure transducers are responsible for monitoring the pressure at the evaporator outlet and compressor inlet for accurate determination of superheat and increased refrigeration efficiency. The WIKA R-1 and AC-1 Refrigeration and Air Conditioning Pressure Transmitters have been designed for accuracy, reliability, and durability in HVAC and Refrigeration Specialty Refrigeration applications like Computer Server Farm Cooling and are compatible with most refrigerants in use today.

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