摘要:
Gaseous-phase portion of a condenser contains vapor and a non-condensing gas, such as air, that impedes condensation of the vapor, and a non-condensing gas discharge device of the condenser is arranged to discharge only the non-condensing gas from the condenser. The non-condensing gas discharge device includes a valve device, in the form of an air vent, for separating the non-condensing gas from the vapor and selectively discharging only the non-condensing gas from the condenser.
摘要:
In a liquid-level-position control device for a condenser in a Rankine cycle apparatus, first and second reference liquid level positions are set. When a position of the fluid level is lower than the first reference liquid level position, water is replenished to a condenser by a liquid-phase working medium supply section. When the position of the fluid level is higher than the second reference liquid level position, the liquid-phase working medium is discharged from within the condenser by a liquid-phase working medium discharge section. In this way, the liquid level, which is a boundary surface between water vapor and condensed water within the condenser, can be constantly kept at an optimal position.
摘要:
When a flow of a working medium stagnates in an expander or evaporator of a Rankine cycle apparatus including a closed working medium circulation circuit, a high pressure exceeding an allowable maximum pressure level of the expander or evaporator is produced within the closed working medium circulation circuit. In such a case, the water-phase working medium is first discharged via relief valves out of the circulation circuit, so that the pressure within the circulation circuit can be lowered. Then, once vapor within the evaporator, having been lowered in temperature and pressure, flows backward within the closed working medium circulation circuit, the vapor is also discharged via the relief valves out of the circulation circuit. In this way, the pressure within the expander or evaporator can be reliably prevented from exceeding the allowable maximum pressure level.
摘要:
Cooling control device for a condenser is provided which includes the condenser, a cooling device for cooling the condenser, and a control device for controlling the cooling device. The cooling device includes a first cooling fan for cooling a gaseous-phase portion of the condenser, and two second cooling fans for cooling a liquid-phase portion of the condenser independently of the first cooling fan. The control device also includes a pressure control section for optimally adjusting a pressure within the gaseous-phase portion, and a temperature control section for optimally adjusting a temperature within the liquid-phase portion. The pressure control section operates the first cooling fan, in accordance with a detected pressure within the gaseous-phase portion, to adjust the pressure within the gaseous-phase portion. The temperature control section operates the second cooling fans, in accordance with a detected temperature within the liquid-phase portion, to adjust the temperature within the liquid-phase portion.
摘要:
In a liquid-level-position control device for a condenser in a Rankine cycle apparatus, first and second reference liquid level positions are set. When a position of the fluid level is lower than the first reference liquid level position, water is replenished to a condenser by a liquid-phase working medium supply section. When the position of the fluid level is higher than the second reference liquid level position, the liquid-phase working medium is discharged from within the condenser by a liquid-phase working medium discharge section. In this way, the liquid level, which is a boundary surface between water vapor and condensed water within the condenser, can be constantly kept at an optimal position.
摘要:
Gaseous-phase portion of a condenser contains vapor and a non-condensing gas, such as air, that impedes condensation of the vapor, and a non-condensing gas discharge device of the condenser is arranged to discharge only the non-condensing gas from the condenser. The non-condensing gas discharge device includes a valve device, in the form of an air vent, for separating the non-condensing gas from the vapor and selectively discharging only the non-condensing gas from the condenser.
摘要:
Rankine cycle apparatus, having closed working medium circulation circuitry, includes a collection mechanism for collecting a working medium leaked or discharged out of the circulation circuitry. The working medium collected via the collection mechanism is stored in an open tank, and the thus-stored liquid-phase working medium is returned to a condenser by means of a return pump.
摘要:
In a Rankine cycle system for an internal combustion engine, including an evaporator (3) for generating a vapor, an expander (4) for converting a heat energy of the vapor into a mechanical energy, a condenser (5) for cooling the vapor discharged from the expander (4) to restore it into water, a tank (6) for storage of the water from the condenser (5), and supply pumps (7, 8) for supplying the water in said tank (6) to the evaporator (3) in a pressurizing manner, the water in the tank (6) is supplied via a water jacket (105) of the internal combustion engine (1) to a dispensing valve (106) by the lower-pressure pump (7). A portion of the water dispensed by the dispensing valve (106) is further pressurized and supplied to the evaporator (3) by the higher-pressure pump (8), and another portion of the water dispensed by the dispensing valve (106) is discharged to the tank (6) after dissipating its heat in an auxiliary (110) such as a heater for heating a vehicle compartment and the like. Thus, it is possible to sufficiently cool heated portions of the internal combustion engine (1) by the water which is a liquid-phase working medium, while maintaining the performance of the Rankine cycle system, thereby aiming at the disuse of a radiator.
摘要:
When a flow of a working medium stagnates in an expander or evaporator of a Rankine cycle apparatus including a closed working medium circulation circuit, a high pressure exceeding an allowable maximum pressure level of the expander or evaporator is produced within the closed working medium circulation circuit. In such a case, the water-phase working medium is first discharged via relief valves out of the circulation circuit, so that the pressure within the circulation circuit can be lowered. Then, once vapor within the evaporator, having been lowered in temperature and pressure, flows backward within the closed working medium circulation circuit, the vapor is also discharged via the relief valves out of the circulation circuit. In this way, the pressure within the expander or evaporator can be reliably prevented from exceeding the allowable maximum pressure level.
摘要:
Rankine cycle apparatus, having closed working medium circulation circuitry, includes a collection mechanism for collecting a working medium leaked or discharged out of the circulation circuitry. The working medium collected via the collection mechanism is stored in an open tank, and the thus-stored liquid-phase working medium is returned to a condenser by means of a return pump.