Heat energy driven direct regeneration adsorb cooling cycle system

A technology of adsorption refrigeration and circulation system, which is applied in the field of adsorption refrigeration system and adsorption refrigeration cycle to achieve the effects of high refrigeration efficiency, good heat exchange effect and high regeneration efficiency

Inactive Publication Date: 2009-09-30
NANJING TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Heat energy driven direct regeneration adsorb cooling cycle system

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Effect test

Embodiment 1

[0026] The adsorber is filled with pure silicon Silicalite molecular sieve, the refrigerant is propane, the refrigerant evaporation temperature in the evaporator is -40°C, the evaporation pressure is 0.11MPa absolute pressure, the ambient temperature is 35°C, the adsorption temperature in the adsorber is 35°C, and the desorption The hot water temperature in the regeneration circuit is 85°C; the condensation pressure in the regeneration condenser is about 1.21MPa absolute pressure; the cycle time of adsorption refrigeration and desorption regeneration is 1.5min, the system refrigeration power is 250W / kg, and the refrigeration coefficient COP is 0.35.

Embodiment 2

[0028] The adsorber is filled with coconut shell activated carbon adsorbent, the refrigerant is n-butane, the evaporation temperature of the butane refrigerant in the evaporator is 5°C, the evaporation pressure is about 0.15MPa absolute pressure, the ambient temperature is 40°C, and the adsorption temperature in the adsorber is The temperature of the hot water in the desorption regeneration circuit is 95°C; the condensation pressure in the regeneration condenser is about 0.38MPa absolute pressure; the cycle time of adsorption refrigeration and desorption regeneration is 4min, the cooling power of the system is 180W / kg, and the refrigeration coefficient COP is 0.43.

Embodiment 3

[0030] The adsorber is filled with pure silicon ZSM-5 molecular sieve, the refrigerant is isobutane, the refrigerant evaporation temperature in the evaporator is -10°C, the evaporation pressure is 0.11MPa absolute pressure, the ambient temperature is 35°C, and the adsorption temperature in the adsorber is 35°C, the temperature of hot water in the desorption regeneration circuit is 65°C; the condensation pressure in the regeneration condenser is about 0.46MPa absolute pressure; the cycle time of adsorption refrigeration and desorption regeneration is 2min, the cooling power of the system is 153W / kg, and the refrigeration coefficient COP is 0.42.

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Abstract

The invention relates to a adsorption refrigerating circulating system, especially a novel circulating adsorption refrigerating system for heating or cooling medium is contacted directly with adsorbent in absorber and heat exchanging to the same utilizing heat energy driving. The adsorption refrigerating system is composed of the absorber, condenser, cooler, liquid storing separator, vapor-liquid separator, evaporator, heater and circulating pump etc. They are connected in series successively with pipeline.

Description

technical field [0001] The present invention relates to an adsorption refrigeration cycle and an adsorption refrigeration system using the cycle, in particular to a cycle that uses heat energy (industrial waste heat, waste heat or solar energy, etc.) Cyclic adsorption refrigeration system. Background technique [0002] Solid adsorption refrigeration can be driven by thermal energy, so it can not only alleviate the tension of power supply, but also effectively use a large amount of low-grade heat energy; at the same time, compared with traditional compression refrigeration, it has ODP (ozone layer destruction index) and GWP (greenhouse effect index) The advantages of environmental protection are 0; in addition, the adsorption refrigeration system basically has no moving equipment, so it is especially suitable for the refrigeration of mobile equipment such as vehicles and ships, as well as special fields such as aerospace. Therefore, solid adsorption refrigeration has become ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B17/08
CPCY02B30/62Y02A30/27
Inventor 崔群张海军姚虎卿
Owner NANJING TECH UNIV
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