( ( In ( simple systems ) ) ( ( the ( heat exchanger ) ) ( ( can ( ( ( be ( the housing ) ) , ) ( ( tranferring heat ) ( to ( ( the ( surrounding air ) ) ( in ( the ( engine compartment ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN In) (NP (JJ simple) (NNS systems))) (NP (DT the) (NN heat) (NN exchanger)) (VP (MD can) (VP (VB be) (NP (DT the) (NN housing)) (, ,) (S (VP (VBG tranferring) (NP (NN heat)) (PP (TO to) (NP (NP (DT the) (VBG surrounding) (NN air)) (PP (IN in) (NP (DT the) (NN engine) (NN compartment))))))))) (. .)))
In simple systems the heat exchanger can be the housing, tranferring heat to the surrounding air in the engine compartment.
(ROOT (S (NP (DT A) (JJ sealed) (, ,) (JJ vacuum-insulated) (NN reaction) (NN flask)) (VP (VBZ approximates) (NP (NP (DT the) (NN condition)) (PP (IN of) (NP (NP (DT a) (VBN isolated) (NN system)) (, ,) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (CC neither) (NP (NN matter)) (CC nor) (NP (NN heat))) (VP (MD can) (VP (VB be) (VP (VBN exchanged) (PP (IN between) (NP (NN system) (CC and) (NNS surroundings)))))))))))) (. .)))
A sealed, vacuum-insulated reaction flask approximates the condition of a isolated system, in which neither matter nor heat can be exchanged between system and surroundings.