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Title: Affordable Rankine Cycle Waste Heat Recovery for Heavy Duty Trucks

Abstract

Nearly 30% of fuel energy is not utilized and wasted in the engine exhaust. Organic Rankine Cycle (ORC) based waste heat recovery (WHR) systems offer a promising approach on waste energy recovery and improving the efficiency of Heavy-Duty diesel engines. Major barriers in the ORC WHR system are the system cost and controversial waste heat recovery working fluids. More than 40% of the system cost is from the additional heat exchangers (recuperator, condenser and tail pipe boiler). The secondary working fluid loop designed in ORC system is either flammable or environmentally sensitive. The Eaton team investigated a novel approach to reduce the cost of implementing ORC based WHR systems to Heavy-Duty (HD) Diesel engines while utilizing safest working fluids. Affordable Rankine Cycle (ARC) concept aimed to define the next generation of waste energy recuperation with a cost optimized WHR system. ARC project used engine coolant as the working fluid. This approach reduced the need for a secondary working fluid circuit and subsequent complexity. A portion of the liquid phase engine coolant has been pressurized through a set of working fluid pumps and used to recover waste heat from the exhaust gas recirculation (EGR) and exhaust tail pipe exhaust energy. Whilemore » absorbing heat, the mixture is partially vaporized but remains a wet binary mixture. The pressurized mixed-phase engine coolant mixture is then expanded through a fixed-volume ratio expander that is compatible with two-phase conditions. Heat rejection is accomplished through the engine radiator, avoiding the need for a separate condenser. The ARC system has been investigated for PACCAR’s MX-13 HD diesel engine.« less

Authors:
 [1]
  1. Eaton Corporation, Menomonee Falls, WI (United States)
Publication Date:
Research Org.:
Eaton Corporation, Menomonee Falls, WI (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Contributing Org.:
Mississippi State University, Purdue University, Kettering University, Argonne National Laboratory, AVL Powertrain Engineering, Modine Manufacturing Company, Torad Engineering, PACCAR Inc., Shell Global Solutions
OSTI Identifier:
1375960
Report Number(s):
DOE-EATON-0007286
DOE Contract Number:
EE0007286
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; WHR; waste heat recovery; coolant energy recovery; Organic Rankine Cycle; Supertruck waste heat recovery; Exhaust heat recovery; bottoming cycle; heavy duty diesel engine heat recovery; glycol-water mixture

Citation Formats

Subramanian, Swami Nathan. Affordable Rankine Cycle Waste Heat Recovery for Heavy Duty Trucks. United States: N. p., 2017. Web. doi:10.2172/1375960.
Subramanian, Swami Nathan. Affordable Rankine Cycle Waste Heat Recovery for Heavy Duty Trucks. United States. doi:10.2172/1375960.
Subramanian, Swami Nathan. Fri . "Affordable Rankine Cycle Waste Heat Recovery for Heavy Duty Trucks". United States. doi:10.2172/1375960. https://www.osti.gov/servlets/purl/1375960.
@article{osti_1375960,
title = {Affordable Rankine Cycle Waste Heat Recovery for Heavy Duty Trucks},
author = {Subramanian, Swami Nathan},
abstractNote = {Nearly 30% of fuel energy is not utilized and wasted in the engine exhaust. Organic Rankine Cycle (ORC) based waste heat recovery (WHR) systems offer a promising approach on waste energy recovery and improving the efficiency of Heavy-Duty diesel engines. Major barriers in the ORC WHR system are the system cost and controversial waste heat recovery working fluids. More than 40% of the system cost is from the additional heat exchangers (recuperator, condenser and tail pipe boiler). The secondary working fluid loop designed in ORC system is either flammable or environmentally sensitive. The Eaton team investigated a novel approach to reduce the cost of implementing ORC based WHR systems to Heavy-Duty (HD) Diesel engines while utilizing safest working fluids. Affordable Rankine Cycle (ARC) concept aimed to define the next generation of waste energy recuperation with a cost optimized WHR system. ARC project used engine coolant as the working fluid. This approach reduced the need for a secondary working fluid circuit and subsequent complexity. A portion of the liquid phase engine coolant has been pressurized through a set of working fluid pumps and used to recover waste heat from the exhaust gas recirculation (EGR) and exhaust tail pipe exhaust energy. While absorbing heat, the mixture is partially vaporized but remains a wet binary mixture. The pressurized mixed-phase engine coolant mixture is then expanded through a fixed-volume ratio expander that is compatible with two-phase conditions. Heat rejection is accomplished through the engine radiator, avoiding the need for a separate condenser. The ARC system has been investigated for PACCAR’s MX-13 HD diesel engine.},
doi = {10.2172/1375960},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jun 30 00:00:00 EDT 2017},
month = {Fri Jun 30 00:00:00 EDT 2017}
}

Technical Report:

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