Abstract:
A method and a device for discharging a thermal stratification storage tank are provided, wherein a first thermal stratification storage tank has a first temperature in a first subsection and a second temperature in a second subsection, when the working fluid of an organic Rankine cycle in the liquid aggregate state in a fluid heat transfer medium of the first thermal stratification storage tank is introduced into the first or second subsection and brought into direct material contact with the heat transfer medium, wherein at the second temperature in the second subsection the pressure in the first thermal stratification storage tank is less than or equal to the vapor pressure of the working fluid.
Abstract:
A method and a device for charging a stratified thermal energy store are disclosed. According to the method, a working fluid of a heat pump is introduced in the gaseous phase into a liquid heat transfer medium of the stratified thermal energy store at at least one introduction point and is brought into direct physical contact with the heat transfer medium, the pressure in the stratified thermal energy store at the introduction point being greater than or equal to the condensation pressure of the working fluid.
Abstract:
A device includes a storage tank and a heat pump including at least one condenser, an expansion valve, an evaporator, and a compressor. The heat pump includes a working circuit for a circulating working fluid. The storage tank is arranged between the condenser and the evaporator with respect to the working circuit, and the storage tank includes a piston and/or a membrane for controlling a fluid level of the working fluid in the condenser.
Abstract:
Various embodiments include a device for increasing the heat yield of a heat source comprising: a heat sink; a heat pump with a condenser and an evaporator; and a heat sink feed and a heat sink return providing a thermal coupling to the heat source with a heat exchanger. The condenser is thermally coupled to the heat sink feed for emitting heat to the heat sink. The evaporator is thermally coupled to the heat sink return for absorbing heat.
Abstract:
The present disclosure relates to power plants. Teachings thereof may be embodied in methods for operating a combined gas-and-steam power plant and/or combined gas-and-steam power plants. For example, some embodiments may include a method for operating a combined gas-and-steam power plant comprising: generating steam with waste gas from a gas turbine; driving a generator for providing electrical current via a turbine device; and using at least part of the heat in the steam to affect an endothermic chemical reaction.
Abstract:
A heat engine having a circuit system which conducts a fluid and which may include at least one evaporation device for evaporating the fluid, at least one compression device for compressing the fluid, at least one condensation device for condensing the fluid, an accumulation device for accumulating the fluid and a further fluid, which can be added to the fluid by means of the compression device, can be accumulated, and at least one expansion for expanding the fluid. The accumulation device may include a mixing device for mixing the fluid and the further fluid to form an emulsion. A method for operating such a heat engine is also provided.
Abstract:
Various examples include a device for increasing the heat yield of a heat source comprising: a heat sink; a heat pump with a condenser and an evaporator; and the heat source. The heat sink includes a heat sink feed and a heat sink return providing thermal coupling to the heat source with a heat exchanger. The heat source includes a heat source feed and a heat source return for thermal coupling to the heat sink with the heat exchanger. The condenser of the heat pump is thermally coupled to the heat sink feed to dissipate heat to the heat sink. The evaporator of the heat pump is thermally coupled to the heat source return downstream of the heat exchanger to absorb heat.
Abstract:
Various embodiments of the teachings herein include a method for the compression of a gas comprising: introducing the gas into a compression chamber; pumping a liquid from an intermediate container into the compression chamber; and pumping at least part of the liquid from the compression chamber to a sprinkling system through a sprinkling circuit. The sprinkling system distributes the liquid within the compression chamber.
Abstract:
Various embodiments include a device for increasing the heat yield of a heat source comprising: a heat sink; a heat pump with a condenser and an evaporator; and the heat source. The heat sink includes a heat sink feed and a heat sink return providing thermal coupling to the heat source with a heat exchanger. The heat source includes a heat source feed and a heat source return for thermal coupling to the heat sink with the heat exchanger. The condenser of the heat pump is thermally coupled to the heat sink feed to dissipate heat to the heat sink. The evaporator of the heat pump is thermally coupled to the heat source return downstream of the heat exchanger to absorb heat.
Abstract:
A heat pump includes an internal heat exchanger and a regulating device designed to bring the temperature of the working fluid at the outlet of a compressor to a specifiable minimum difference above the dew point at the same pressure. This allows the use of novel coolants in heat pumps, e.g., coolants having a low dew line slope of under 1000/kJ in the temperature-entropy diagram and characterized by very good safety and environmental properties.