Advanced Exergy and Exergoeconomic Analysis of Cascade Absorption Refrigeration System Driven by Low-Grade Waste Heat

2019 ◽  
Vol 7 (19) ◽  
pp. 16843-16857 ◽  
Author(s):  
Mengxiao Yu ◽  
Peizhe Cui ◽  
Yinglong Wang ◽  
Zhiqiang Liu ◽  
Zhaoyou Zhu ◽  
...  
Keyword(s):  
Waste Heat ◽  
Low Grade ◽  
Absorption Refrigeration ◽  
Refrigeration System ◽  
Absorption Refrigeration System ◽  
Exergoeconomic Analysis

Review of Technology Used to Improve Heat and Mass Transfer Characteristics of Adsorption Refrigeration System

2016 ◽  
Vol 24 (02) ◽  
pp. 1630003 ◽  
Author(s):  
Anirban Sur ◽  
Randip K. Das
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Waste Heat ◽  
Transfer Characteristic ◽  
Low Grade ◽  
Transfer Performance ◽  
Refrigeration System ◽  
Adsorption Refrigeration ◽  
System A ◽  
Absorption Refrigeration System

Researchers proved that, heat powered adsorption refrigeration technology is very effective methods for reutilization of low-grade thermal energy such as industrial waste heat, solar energy, and exhaust gases from engines. But to make it commercially competitive with the well-known vapor compression and absorption refrigeration system, the processes require high rates of heat and mass transfer characteristic between adsorbate and adsorbent as well as externally supplied heat exchanging fluid. This paper reviews various techniques that have been developed and applied to enhance the heat transfer and mass transfer in adsorber beds, and also discuss their effects of the performance on adsorption system. A comprehensive literature review has been conducted and it was concluded that this technology, although attractive, has limitations regarding its heat and mass transfer performance that seem difficult to overcome. Therefore, more researches are required to improve heat and mass transfer performance and sustainability of basic adsorption cycles.

Thermal Energy Requirements of Air-Conditioning Systems

1971 ◽  
Vol 93 (2) ◽  
pp. 172-176
Author(s):  
M. E. Lackey
Keyword(s):  
Thermal Energy ◽  
Air Conditioning ◽  
Waste Heat ◽  
Energy Requirements ◽  
Absorption Refrigeration ◽  
Refrigeration System ◽  
Fast Breeder Reactors ◽  
Breeder Reactors ◽  
Absorption Refrigeration System ◽  
Air Conditioning Systems

The thermal energy requirements for air conditioning by compressive and absorption methods were determined for light-water, thermal-breeder, and fast-breeder reactors. The energy required to produce a ton-hour of refrigeration varied from 5100 Btu to 13,100 Btu by absorption and from 5600 to 8800 Btu by compression. The amount of waste heat dissipated to the environment at the reactor site as a consequence of producing a ton-hour of air conditioning ranged from an increase of 21,000 Btu for the electric-motor-driven refrigeration system to a decrease of 6000 Btu for the absorption refrigeration system.

Application of waste heat powered absorption refrigeration system to the LNG recovery process

2009 ◽  
Vol 32 (4) ◽  
pp. 687-694 ◽  
Author(s):  
Paul Kalinowski ◽  
Yunho Hwang ◽  
Reinhard Radermacher ◽  
Saleh Al Hashimi ◽  
Peter Rodgers
Keyword(s):  
Waste Heat ◽  
Recovery Process ◽  
Absorption Refrigeration ◽  
Refrigeration System ◽  
Absorption Refrigeration System

scholarly journals Experimental analysis of absorption refrigeration system driven by waste heat of diesel engine exhaust

2019 ◽  
Vol 23 (1) ◽  
pp. 149-157
Author(s):  
Mukul Kumar ◽  
Randip Das
Keyword(s):  
Diesel Engine ◽  
Waste Heat ◽  
Combustion Engine ◽  
Engine Performance ◽  
Exhaust System ◽  
Bench Test ◽  
Exhaust Gas ◽  
Absorption Refrigeration ◽  
Refrigeration System ◽  
Absorption Refrigeration System

This work presents an experimental study of an ammonia-water absorption refrigeration system using the exhaust of an internal combustion engine as energy source. The exhaust gas energy availability, the performance of the absorption refrigeration system and the engine performance are evaluated. A commercial turbocharged Diesel engine has been tested in a bench test dynamometer, with the absorption refrigeration system adapted to the exhaust system. The maximum COP obtained from the refrigeration system is 0.136 and it has been shown that heat energy available with exhaust gas is capable of producing sufficient cooling capacity for air conditioning the vehicle without requiring any energy input from the engine.

scholarly journals Thermal Analysis of a Forced Flow Diffusion Absorption Refrigeration System for Fishing-Boat Exhaust Waste Heat Utilization

2021 ◽  
Vol 9 ◽  
Author(s):  
Shuai Du
Keyword(s):  
Thermal Analysis ◽  
Waste Heat ◽  
Forced Flow ◽  
The Novel ◽  
Absorption Refrigeration ◽  
Refrigeration System ◽  
Fishing Boat ◽  
Exhaust Waste Heat ◽  
Absorption Refrigeration System ◽  
Diffusion Absorption

Ammonia water absorption refrigeration systems are effective in utilizing fishing-boat exhaust waste heat for cryopreservation. However, the liquid level control and the use of a solution pump characterized by small flowrate and high-pressure head result in poor reliability in the traditional system. Besides, the system must necessarily be designed anti-swaying and anti-corrosion. This paper proposes a forced flow diffusion absorption refrigeration system, in which an inherently leak-free canned motor pump and an ejector are employed to provide the driving forces of the gas and liquid loops. The approximate single pressure operation allows for a simple passive liquid sealing control without throttling valves. The system adopts an integrated cooling strategy which allows the system to operate under swaying conditions, and the external seawater cooled heat exchanger avoids internal corrosion and leakage. The thermal analysis shows the system is valid to be operated under wide operating conditions, and the coupled gas and solution circulation ratios determined the performance of the novel system. There is an optimal ammonia mass fraction difference in the gas loop to obtain the optimal COP. The COP reaches 0.4 when the temperatures at the outlets of the generator, evaporator, absorber, and condenser are 160, −15, 35, and 35°C, respectively. The novel system provides a reliable absorption refrigeration system design for fishing-boat applications.

PERFORMANCE OF VAPOUR ABSORPTION REFRIGERATION SYSTEM USING WASTE HEAT SOURCE

2020 ◽  
Vol 10 (3) ◽  
pp. 45
Author(s):  
J. SIDDHARTHA YADAV ◽  
CH. MANIKANTESWAR RAO ◽  
V. VINAY KUMAR ◽  
◽  
◽  
...  
Keyword(s):  
Heat Source ◽  
Waste Heat ◽  
Absorption Refrigeration ◽  
Refrigeration System ◽  
Absorption Refrigeration System
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