Assertion: steam engine's efficiency | /r/HasProperty | difficult to achieve
Facets:
value: due to to the extra stage
type: CAUSE
Source sentences:
text: While high overall thermal efficiency may be difficult to achieve, largely due to the extra stage of generating a working fluid between combustion and power delivery attributable mainly to leakages and heat losses,:54–61 the separation of the processes allows specific problems to be addressed at each stage without revising the whole system every time.