Experimental study and analysis on double effect absorption heat pump for efficient waste heat recovery

Xu, Z.Y.; Mao, H.C.; Liu, Dianshou; Wang, Ruzhu

doi:10.1360/tb-2020-0150

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…After the waste water discharged from the boiler is continuously expanded, the generated secondary exhaust steam enters the deaerator, and the boiler waste water is discharged from the drain outlet to the constant discharge expansion tank for secondary flash evaporation. The boiler is scheduled to discharge approximately once every 24 hours, with a discharge rate of around 0.5% [5,6] .…”

Section: Project Overviewmentioning

confidence: 99%

Design of Low Quality Heat Recovery and Utilization System for Fixed Discharge of Coal-fired Boilers

Hu,

Liu

2023

J. Phys.: Conf. Ser.

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In order to optimize the energy structure, increase the proportion of clean heat sources, and solve the problem of high energy consumption for heating, a waste heat recovery scheme is planned to be designed, which mainly recovers the waste heat of the 700MW boilers in the thermal power plant, which can be used to heat the condensed water of the steam turbine in summer., It can be used to heat the circulating water in the heating network in winter to achieve the goal of recovering heat and reducing energy consumption. In the design process, a lithium bromide absorption heat pump is used as the main system for low-quality heat recovery, and steam is used as a driving heat source to release heat in the generator to heat a dilute solution of lithium bromide to generate refrigerant vapor, thereby achieving high efficiency, energy saving and economic benefits. the goal of. At the same time, two booster pumps (one for transport and one for standby) are added to the condensate pipeline at the inlet of the low-low temperature economizer system to achieve the purpose of boosting the condensate. This design plan adheres to the concept of energy saving and environmental protection, and proposes a technical transformation route for low-quality heat recovery and utilization projects to achieve the goals of reducing production costs and increasing corporate benefits.

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Section: Project Overviewmentioning

confidence: 99%

Design of Low Quality Heat Recovery and Utilization System for Fixed Discharge of Coal-fired Boilers

Hu,

Liu

2023

J. Phys.: Conf. Ser.

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“…Energy is an indispensable factor for human survival and development. Therefore, energy efficiency plays an extremely important role in promoting social and economic development and improving people's standard of living [1][2] . In industrial production and life, a large part of the energy is consumed and used in the form of heat energy.…”

Section: Introductionmentioning

confidence: 99%

“…In many industries, the refrigeration industry accounts for a large proportion, which brings convenience and comfort to people, but also causes great pressure on the environment and energy. In the face of increasingly serious energy and environmental problems, lithium bromide absorption refrigeration technology is drawing increasing attention because of its benefits, such as industrial waste heat, solar energy, and no environmental pollution, and it has been applied in industrial production and daily life [3][4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

Waste Heat Recycling Absorption Refrigeration Circulation System

Wang

Zhou

Cai

et al. 2023

J. Phys.: Conf. Ser.

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To maximize energy use, this paper designs a lithium bromide absorption refrigeration system that is used to recycle and use low-temperature energy and industrial residual heat. Firstly, the mathematical model of the system is established using the lithium bromide aqueous solution status equation and the equation of the state of water and steam to obtain the state parameters in the thermodynamic calculation process of the system. Secondly, according to the principle of mass economy, energy saving, and heat transfer, the thermodynamic parameters of each process of the system are obtained to assist the design of the system. Finally, the influence of some key parameters on the system is simulated and analyzed to obtain the optimal parameters which can make the system recovery efficiency the highest. The simulation results show that the system conceived in this article can efficiently recycle waste gas and achieve the purpose of refrigeration. Therefore, it has a certain value of popularization.

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Energy grade splitting of hot water via a double effect absorption heat transformer

Gao

Mao³

et al. 2021

Energy Conversion and Management

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Experimental study and analysis on double effect absorption heat pump for efficient waste heat recovery

Cited by 4 publications

References 10 publications

Design of Low Quality Heat Recovery and Utilization System for Fixed Discharge of Coal-fired Boilers

Design of Low Quality Heat Recovery and Utilization System for Fixed Discharge of Coal-fired Boilers

Waste Heat Recycling Absorption Refrigeration Circulation System

Energy grade splitting of hot water via a double effect absorption heat transformer

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