A waste heat recovery system has a Rankine cycle in which boilers, an expander, a condenser, and a circulation pump are installed on a circulation path in which working fluid is circulated, and the boilers are connected in series with and in parallel to the circulation path. The waste heat recovery system includes: a first and a second direction control valves installed at a top and at a bottom of the boilers to shift flow directions of the working fluid to the boilers; and a controlling unit to receive information of a vehicle and information of the waste heat recovery system to control the first and second direction control valves.

A heat recovery system that includes at least one an engine, a radiator, an Organic Rankine Cycle (ORC) and a thermo-electric generator (TEG). The radiator may be coupled to the reciprocating engine, and the ORC may be coupled to the reciprocating engine and to the TEG. A control module in the system is configured to divert reciprocating engine jacket water fluid through any of the radiator, ORC and TEG to increase the energy efficiency of the reciprocating engine through heat recovery caused by the diverted fluid.

A cooling arrangement for a WHR-system in a vehicle, includes a first cooling circuit including a first radiator in which a circulating coolant is cooled, and a second cooling circuit including a second radiator in which a coolant is cooled to a lower temperature than the coolant in the first radiator. A condenser inlet line directs coolant from one of the cooling circuits to a condenser to provide cooling for a working medium flowing therethrough. A cooling adjusting device adjusts the temperature of the coolant in the inlet line to the condenser by the coolant in the other cooling circuit based on information received about the coolant such that the coolant in the condenser inlet line provides the estimated suitable cooling of the working medium in the condenser.

The invention relates generally to electrical power systems or steam generator systems including generating capacity of a coal plant where specific emissions and power is improved with an alternately fueled engine driving one or more air processes.

An internal combustion engine waste heat utilization system comprises a cooling medium, a cooling medium storage tank (9), a cooling medium delivery pipe (8), a circulation pump (7), a high-pressure pipeline (15), energy storage tanks (14, 12), steam turbines (13,11) and a radiator (10). The cooling medium forms high-temperature and high-pressure gas by absorbing waste heat of an internal combustion engine and exhaust gas, so as to drive the steam turbines to do work and convert thermal energy into kinetic energy.

The invention relates to an exhaust heat recovery system with a working fluid circuit 1, having a heat exchanger 2a connected in an exhaust line 3 of an internal combustion engine 5, wherein the heat exchanger 2a is a part of the working fluid circuit 1 together with at least one expansion machine 11, a condenser 12 and a fluid pump 15a. According to the invention, an exhaust heat recovery system is provided which is improved as compared with known systems. This is achieved in that the exhaust heat recovery system has a protective device. The protective device protects the exhaust heat recovery system against a leakage amount of the working fluid escaping from the working fluid circuit and igniting and has a reservoir which receives a medium, wherein the reservoir is a reservoir 20 and the medium is a gas.

The invention relates to a waste-heat utilization assembly (1) of an internal combustion engine (50), comprising a working circuit (2) that conducts a working fluid. The working circuit (2) is equipped with a feed pump (6), an evaporator (10), an expansion machine (3) and a condenser (4) in the direction of flow of the working fluid. Additionally, the evaporator (10) is also arranged in an exhaust tract (53) of the internal combustion engine (50). The exhaust tract (53) is equipped with an exhaust bypass channel (61) parallel to the evaporator (10), and the exhaust tract (53) is equipped with an exhaust bypass valve (60), by means of which the distribution of the mass flow rate of the exhaust of the internal combustion engine (50) to the evaporator (10) and to the exhaust bypass channel (61) can be controlled. The waste-heat utilization assembly (1) further comprises a cooling device (20, 40, 30) which conducts a coolant, and the condenser (4) is arranged in the cooling device (20, 40, 30). Furthermore, at least one temperature sensor (37, 38, 41, 42, 43, 44) is arranged in the cooling device (20, 40, 30).

Configurations and related processing schemes of direct or indirect (or both) inter-plants heating systems synthesized for grassroots medium grade crude oil semi-conversion refineries to increase energy efficiency from specific portions of low grade waste heat sources are described. Configurations and related processing schemes of direct or indirect (or both) inter-plants heating systems synthesized for integrated medium grade crude oil semi-conversion refineries and aromatics complex for increasing energy efficiency from specific portions of low grade waste sources are also described.

Configurations and related processing schemes of direct or indirect (or both) inter-plants heating systems synthesized for grassroots medium grade crude oil semi-conversion refineries to increase energy efficiency from specific portions of low grade waste heat sources are described. Configurations and related processing schemes of direct or indirect (or both) inter-plants heating systems synthesized for integrated medium grade crude oil semi-conversion refineries and aromatics complex for increasing energy efficiency from specific portions of low grade waste sources are also described.

Provided is a power generation system with which it is possible to perform efficient power generation. The power generation system comprises: an evaporation chamber; a reciprocal heat-insulating cylinder provided with a forward-side expansion chamber and a backward-side expansion chamber; an operating fluid supply/ejection means which performs a supply flow passageway forming operation and an ejection flow passageway forming operation in an alternating and reciprocal manner; a heat-insulating expansion chamber; a liquefied operating fluid recirculating means; and a compression/liquefaction recirculating means. The heat-insulating expansion chamber may be provided separately on both the ejection flow passage downstream side of the forward-side expansion chamber and on the ejection flow passage downstream side of the backward-side expansion chamber.