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Thanks all for your answers. All of the above are good points that explain most of the reasons why EC are not more widely used with HVAC chiller. As a result the chiller packages do not include the possibility of having an EC. If you take the case of a chilled water chiller running wit R134a...

Hello, Anybody knows why you never see evaporative condenser with HVAC chiller, although they are more efficient then air cooled type or water cooled shell and tube type ? Thanks

Hello all In the latest issue of Spirax newsletter there is an article giving the pros and cons (page 7). May be of interest... "Higher boiler pressure for lower energy use"... See : http://www.spiraxsarco.com/uk/navigation/c306.asp

Hello all, I would like to know if somebody have good results on reducing pressure of a steam boiler in order to reduce standing losses and thus running costs. Do you know anywhere where this could be documented ? I am aware that reducing steam pressure is not a good idea as regards to : -...

I was thinking it would be possible to reclaim more heat between the absorber and the generator (at the heat reclaimer or intercooler). But after reading some make documentation this idea does not seems possible, the intercooler is already sized to cool the solution going to the absorber and...

Hi What kind of instrumentation do you have ? If u want to get the overall boiler efficiency u need to find out the energy going out through the hot water (MCP elta T...) If you don t have any instumentation at all u could consider measuring the flow with an ultrasonicflow meter, and the delta...

Hi In the litterature you shoulf find graphs showing for each type of refrigerants : temperature drop at the suction gauge=f( pressure drop) for different evaporating temperatures. This should help you decide what pressure drop you can allows in your circuit. Rgds

Hello, Is it possible to retrofit within a Water-Lithium Bromide absorption chiller an heat exchanger between the absorber and the generator ? Do you know any manufacturers that proposes this feature "off the shell" ? Thank you