Performance analysis of waste heat recovery with a dual loop organic rankine cycle system for diesel engine - 文章详情页

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To　take　full　advantage　of　the　waste　heat　from　a　diesel　engine,　a　set　of　dual　loop　organic　Rankine　cycle　(ORC)　system　was　designed　to　recover　exhaust　energy,　waste　heat　from　the　coolant　system,　and　released　heat　from　turbocharged　air　in　the　intercooler　of　a　six-cylinder　diesel　engine.　Aspen　plus　software　was　used　to　model　the　dual　loop　ORC　system.　According　to　the　simulation　model,　the　operating　performance　of　the　dual　loop　ORC　system　and　the　fuel　economy　of　the　diesel　engine　were　investigated.　The　results　show　that　the　thermodynamic　performance　and　economy　performance　of　the　diesel　engine　can　be　effectively　improved　by　using　the　dual　loop　ORC　system.　Under　the　certain　engine　operating　conditions,　namely,　engine　speed　is　2000　r/min　and　engine　torque　is　1313　N·m,　the　total　net　power　output　of　the　dual　loop　ORC　system　is　up　to　43.65　kW.　The　brake　specific　fuel　consumption　(BSFC)　and　the　thermal　efficiency　of　the　diesel　engine-dual　loop　ORC　combined　system　are　191.24　g/(kW·h)　and　37.57%,　respectively.　Compared　with　the　diesel　engine,　the　thermal　efficiency　of　the　combined　system　can　be　increased　by　13.69%　and　the　BSFC　can　be　reduced　by　15.86%.　©,　2015,　Beijing　University　of　Technology.　All　right　reserved.

关键词：

Aspen plus; Diesel engine; Dual loop organic Rankine cycle; Performance analysis; Waste heat recovery

作者机构：

[ 1 ] [Zhang, H.-G.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Zhang, H.-G.]Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100124, China
[ 3 ] [Wang, H.-J.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Wang, H.-J.]Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100124, China
[ 5 ] [Yang, K.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 6 ] [Yang, K.]Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100124, China
[ 7 ] [Yang, F.-B.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 8 ] [Yang, F.-B.]Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100124, China
[ 9 ] [Song, S.-S.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 10 ] [Song, S.-S.]Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100124, China
[ 11 ] [Chang, Y.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 12 ] [Chang, Y.]Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100124, China
[ 13 ] [Bei, C.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 14 ] [Bei, C.]Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100124, China

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