TY - JOUR
T1 - Thermoeconomic assessment of an absorption refrigeration and hydrogen-fueled diesel power generator cogeneration system
AU - Sodré, José Ricardo
AU - Herrera, Mario David Mateus
AU - Arrieta, Felipe Raúl Ponce
PY - 2014/3/18
Y1 - 2014/3/18
N2 - The thermoeconomic assessment of a cogeneration application that uses a reciprocating diesel engine and an ammonia-water absorption refrigeration system for electrical power and cold production from hydrogen as fuel is presented. The purpose of the assessment is to get both exergetic and exergoeconomic costs of the cogeneration plant products at different load conditions and concentrations of hydrogen-diesel oil blends. The exhaust gas of the reciprocating diesel engine is used as an energy source for an ammonia-water absorption refrigeration system. The reciprocating diesel engine was simulated using the Gate Cycle™ software, and the ammonia-water absorption refrigeration system simulation and the thermoeconomic assessment were carried out using the Engineering Equation Solver software (EES). The results show that engine combustion is the process of higher exergy destruction in the cogeneration system. Increased hydrogen concentration in the fuel increases the system exergetic efficiency for all load conditions. Exergy destruction in the components of the ammonia-water absorption refrigeration system is increased with increasing load due to the rise of heat transfer. At intermediate and high loads energy efficiency is increased in the power system, and low values of unit exergetic cost and competitive specific exergoeconomic costs are noticed. The cogeneration system operation at intermediate and high engine loads was proven to be feasible.
AB - The thermoeconomic assessment of a cogeneration application that uses a reciprocating diesel engine and an ammonia-water absorption refrigeration system for electrical power and cold production from hydrogen as fuel is presented. The purpose of the assessment is to get both exergetic and exergoeconomic costs of the cogeneration plant products at different load conditions and concentrations of hydrogen-diesel oil blends. The exhaust gas of the reciprocating diesel engine is used as an energy source for an ammonia-water absorption refrigeration system. The reciprocating diesel engine was simulated using the Gate Cycle™ software, and the ammonia-water absorption refrigeration system simulation and the thermoeconomic assessment were carried out using the Engineering Equation Solver software (EES). The results show that engine combustion is the process of higher exergy destruction in the cogeneration system. Increased hydrogen concentration in the fuel increases the system exergetic efficiency for all load conditions. Exergy destruction in the components of the ammonia-water absorption refrigeration system is increased with increasing load due to the rise of heat transfer. At intermediate and high loads energy efficiency is increased in the power system, and low values of unit exergetic cost and competitive specific exergoeconomic costs are noticed. The cogeneration system operation at intermediate and high engine loads was proven to be feasible.
KW - Ammonia-water absorption refrigeration system
KW - Diesel engine
KW - Hydrogen
KW - Thermoeconomic assessment
UR - http://www.scopus.com/inward/record.url?scp=84895425530&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/pii/S0360319914000779?via%3Dihub
U2 - 10.1016/j.ijhydene.2014.01.028
DO - 10.1016/j.ijhydene.2014.01.028
M3 - Article
AN - SCOPUS:84895425530
SN - 0360-3199
VL - 39
SP - 4590
EP - 4599
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 9
ER -