摘要:
A CHP system (100) includes a combustor (14) (heat source), a Rankine cycle apparatus (20), and a second heat exchanger (42). The Rankine cycle apparatus (20) includes, as an evaporator (24), a first heat exchanger that absorbs thermal energy produced in the combustor (14). The second heat exchanger (42) is located farther from the combustor (14) than is the evaporator (24), is in direct contact with the evaporator (24) or in indirect contact with the evaporator (24) via a thermally-conductive member, absorbs thermal energy produced in the combustor (14), and transfers the thermal energy to a heat medium.
摘要:
A heat exchanger 100 includes a plurality of heat exchange segments 10. Each of the heat exchange segments 10 is composed of an inner tube assembly 26 including two inner tubes 24, and an outer tube 28. A gap width G represented by a difference ((Æin / 2) - Æout) between a half of an inner diameter Æin of the outer tube 28 and an outer diameter Æout of the inner tube 24 satisfies 0
摘要:
A CHP system (100) includes a combustor (14) as a heat source, a Rankine cycle apparatus (20), a second heat exchanger (42), and a thermal fluid flow path (16). The Rankine cycle apparatus (20) includes, as an evaporator, a first heat exchanger (24) that absorbs thermal energy from combustion gas (thermal fluid). The second heat exchanger (42) absorbs thermal energy from the combustion gas and transfers the thermal energy to a heat medium. The first heat exchanger (24) and the second heat exchanger (42) are disposed in the thermal fluid flow path (16). The thermal fluid flow path (16) includes a first flow path (16a) that allows the combustion gas to reach the first heat exchanger (24) directly from the combustor (14) and a second flow path (16b) that allows the combustion gas to reach the second heat exchanger (42) directly from the combustor (14).
摘要:
To improve the reliability of the Rankine cycle device using a sealed-type expansion machine, the Rankine cycle device 100 according to the present disclosure comprises a pump 1, a heater 2, an expansion machine 3, a radiator 5, and a cooling path 8. The expansion machine 3 comprises an expansion mechanism 11 for extracting a power from the working fluid, an electric power generator 12, a sealed container 10 containing the expansion mechanism 11 and the electric power generator 12, a first inlet 34a, a first outlet 35a, a second inlet 30a, and a second outlet 31 a. The radiator 5 is connected to the pump 1 with a flow path to cool the working fluid drained from the second outlet 31 a. The cooling path 8 which connects the first outlet 35a to the second outlet 30a has a cooler 4 to cool the working fluid drained from the first outlet 35a.
摘要:
A Rankine cycle apparatus (20A) includes a pump (23), an evaporator (24), an expander (21), a condenser (22), and an internal heat exchanger (25). The internal heat exchanger (25) allows heat exchange to take place between the working fluid discharged from the expander (21) and a working fluid discharged from the pump (23). A temperature of the working fluid at an inlet of the expander (21) is set so that a temperature of the working fluid at an outlet of the expander (21) be higher than a saturation temperature on a high-pressure side of the cycle.
摘要:
A CHP system (100) includes a combustor (14) (heat source), a Rankine cycle apparatus (20), and a second heat exchanger (42). The Rankine cycle apparatus (20) includes, as an evaporator (24), a first heat exchanger that absorbs thermal energy produced in the combustor (14). The second heat exchanger (42) is located closer to the combustor (14) than is the evaporator (24), absorbs thermal energy produced in the combustor (14), and transfers the thermal energy to a heat medium.
摘要:
A Rankine cycle apparatus (20) includes a pump (23), an evaporator (24), an expander (21), and a condenser (22). The evaporator (24) has a plurality of heat transfer tubes (28) arranged in rows in a flow direction of a high-temperature fluid to be heat-exchanged with a working fluid. The heat transfer tube (28) located in a most upstream row in the flow direction of the high-temperature fluid is defined as a most upstream heat transfer tube (28k). For example, the most upstream heat transfer tube (28k) forms an inlet of the evaporator (24) so that the working fluid flows into the evaporator (24) through the inlet and first passes through the most upstream heat transfer tube (28k).