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Power, cooling/heating energy supply system and method for cascade recovery of vehicle engine waste heat

A technology of engine waste heat and cascade recovery, which is applied in the direction of engine components, combustion engines, machines/engines, etc., and can solve the problem of low energy supply and demand balance

Inactive Publication Date: 2015-10-28
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The proposed or constructed recovery vehicle waste heat refrigeration scheme is only applicable to conditions with cold demand
As for the organic Rankine cycle system scheme that considers the indirect recovery of cooling waste heat, since the existing vehicle energy supply system needs to use part of the cooling waste heat for heating in the heating season, the cooling waste heat of this type of scheme can only be fully recovered in the non-heating season
It can be seen that the waste heat recovery energy supply system schemes that have been proposed pay more attention to the recovery potential of various waste heat, but seldom consider the adaptability of waste heat recovery schemes and vehicle seasonal load demand from the perspective of energy supply and demand balance

Method used

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  • Power, cooling/heating energy supply system and method for cascade recovery of vehicle engine waste heat

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Embodiment Construction

[0028] figure 1 It is the power and cold / heat energy supply system for cascade recovery of vehicle engine waste heat proposed by the present invention, refer to below figure 1 Describe the working process of the energy supply system.

[0029] First, fuel 1 and air 2 enter the cylinder of engine 3 and burn to release heat energy, part of which is converted into mechanical energy, and the remaining heat energy is taken away by engine smoke 6 and coolant 5 arranged in cylinder liner 4 around the engine. The flue gas 6 passes through the first heat exchanger 7 to heat the multi-component steam 16, after which the temperature decreases, and then it is discharged into the atmosphere. The coolant 5 at the outlet of the cylinder liner 4 enters the first heat exchanger 7 to heat the zeotropic working medium 10 , and then enters the cylinder liner 4 through the first circulation pump 8 to circulate and cool the engine 3 .

[0030] The non-azeotropic working medium 10 is pressurized by...

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Abstract

The invention provides a cold / heat energy supply system and method for recovering vehicle engine waste heat in a stepped mode and belongs to the fields of energy and power. The cold / heat energy supply system and method for recovering the vehicle engine waste heat in the stepped mode is characterized in that thermodynamic cycle of a non-azeotropic mixed working medium (10) is mainly adopted to recover cooling waste heat and smoke waste heat of a vehicle engine (3) in the stepped mode and convert the heat into vehicle power and cold / heat, the power and cold / heat load demands under different season environment temperature conditions can be met by adjusting outlet material proportion of a distributor (19) and controlling the mass fractions of components in the initial non-azeotropic mixed working medium (10) and back pressure of an absorption condenser (20), and the fuel consumption rate of the vehicle engine is remarkably reduced.

Description

technical field [0001] The invention relates to a power, cold / heat energy supply system and working method for cascade recovery of vehicle engine cooling waste heat and flue gas waste heat, belonging to the field of energy and power. Background technique [0002] Currently, the energy consumption of transport vehicles accounts for an important proportion of my country's total energy consumption, and vehicle exhaust emissions have become an important source of urban air pollution. With the increasingly stringent requirements for energy conservation and emission reduction, it has become a current research hotspot to improve the energy conversion efficiency of the vehicle energy supply system and reduce its unit production capacity pollution emissions through waste heat recovery technology. The actual vehicle energy supply system is affected by seasonal load changes and can be divided into three types of load characteristics: cooling season, heating season and non-cooling and h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02G5/04F01K25/10B60H1/02B60H1/32
CPCY02T10/166Y02T10/12Y02T10/88
Inventor 岳晨韩东蒲文灏何纬锋黄莺
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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