More Efficient LPA® Products and Applications
A few of our existing and recent applications are;
LPA® Pumps that get installed in a refrigeration system to overcome liquid line pressure drop which causes flash gas to enter the liquid line and reduce efficiency whereby minimum head pressure controls can be set to reduced head pressures, thereby saving energy and increasing capacity at mild to cold outdoor temperatures. Also used during colder conditions to maintain 100% liquid at the eev’s / tev’s and to prevent falling condensing temperatures / compression ratios and associated compressor short cycling. During warmer periods, also much improved efficiency when liquid lines are long or have vertical rises to the expansion valves.View Slide Show
Other applications include;
- Ground Source Geothermal Systems that circulate Glycol underground in conjunction with plate heat exchanges to maintain lower annual condensing temperatures and higher efficiency.
- Co2 – HFC – HFO Re-Circulation of refrigerant to display cases or fixtures with or without expansion valves and thermo-syphon return of vapors to cascade condensers.
- Data Center thermo-syphon distribution of refrigerants, free cooling techniques for enhanced performance and maximum PUE.
- DX Free Cooling which incorporates LPA® pumps to circulate the refrigerant rather than using the systems compressors to provide the cooling when ambient conditions permit.
- Natural Propane Water Chillers which rely on LPA® pumps to provide Liquid Injection, floating head pressure and DX Free Cooling during cooler periods, substantially improving system efficiency annually.
- Co2 / Propane Ground Source Heat Pumps which rely on LPA® pumps to circulate refrigerant underground to absorb ground-heat changing liquid to vapour then drawn in by the systems compressor for compression and efficient cost effective heating during winter periods.
- Co2 Sub critical LT where the LPA® pumps eliminate “flash gas” and deliver “vapour free” liquid to the cases or fixtures regardless of location and de super-heating Co2 discharge temperatures for improved performance.
- Condenser desuperheating compressor discharge vapors to improve condenser performance and system efficiencies.
- Two Phase Heat Transfer Systems - with natural refrigerants such as Propane used as the working fluid to transfer heat and provide cooling in a variety of applications for higher efficiencies.
- Ejector LPA® liquid refrigerant pumps to provide refrigeration with reduced vapor compression saving substantial amounts of energy.
- Co2 Trans-critical suction line de-super-heating whereby the LPA pump injects a small quantity of liquid refrigerant into the discharge side second stage compressor/s to reduce trans-critical discharge temperatures and compression ratios.