Technical and economic comparison between steam lithium bromide units and electric-driven compressor units? ?
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The chemical plant needs low-temperature water at 10 t/h and 5–7°C； The factory has no shortage of electricity, steam, or water. The electricity cost is 0.68 yuan/kWh, while the cost of low-pressure steam (4 barg) is 130 yuan/ton. From the perspectives of technology, economy, stability, operational maintenance, and safety and environmental protection: which is better, steam lithium bromide units or electrically driven compression refrigeration units? Welcome to experts for discussions and guidance; thank you! ! ! !
Personally prefer electric drive compression refrigeration units
It’s electricity, right? The demand is too low; electricity is more convenient to use, and the initial investment is also lower, so bromine machines don’t have any advantages in this case.
No need for frequency conversion to adjust load; energy savings achieved
If considered independently, electric drive is better. However, if there is abundant steam or hot water (above 90°C), from a comprehensive efficiency perspective, lithium bromide is the better choice.
Our facility has excess condensate, which is first used as make-up water for the circulating water system. We are also considering installing lithium bromide units, but the overall benefits have not yet been evaluated. It would be best to have experts in this field analyze it! Thank you