Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

If I have a system in which I introduce 100e.u.F (energy units) derived from chemical energy (i.e. fuel) and generate thermal energy to heat water what are e.u. absorbed by water? I.e. the efficiency of the transformation?

Basically I would like to know the average/general efficiency of energy transformation for a district heating plant. Considered that the only energy input is fuel and the only energy output is heat (no electricity)?

What are the energy loss?

Thanks, Luther

share|improve this question
add comment

1 Answer

up vote 0 down vote accepted

According to http://www.labplan.ufsc.br/congressos/wseas/papers/517-455.pdf (see references there): "In general, today average values for heat generator efficiencies are about 0.8-0.85 for residential equipment (< 50 kWt) and 0.9 for bigger (industrial) boilers." You should also take into account heat losses in distribution (in pipelines etc.), not just in boilers.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.