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 cycle and adsorption refrigeration system to achieve good heat exchange effect, efficient heat transfer and high refrigeration efficiency

Inactive Publication Date: 2008-03-05
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Heat energy driven direct regeneration adsorb cooling cycle system

Examples

Experimental program
Comparison scheme
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, desorption The hot water temperature in the regeneration circuit is 85°C; the condensing pressure in the regeneration condenser is about 1.21MPa absolute pressure; the adsorption refrigeration and desorption regeneration cycle time are both 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 butane refrigerant in the evaporator is 5℃, the evaporation pressure is about 0.15MPa absolute pressure, the ambient temperature is 40℃, and the adsorption temperature in the adsorber The temperature of the hot water in the desorption regeneration circuit is 95°C; the condensing pressure in the regenerative condenser is about 0.38MPa absolute pressure; the adsorption refrigeration and desorption regeneration cycle time are both 4min, the system refrigeration power is 180W / kg, and the coefficient of refrigeration is 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℃, the temperature of hot water in the desorption regeneration circuit is 65℃; the condensing pressure in the regenerative condenser is about 0.46MPa absolute pressure; the adsorption refrigeration and desorption regeneration cycle time are both 2min, the system refrigeration power 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 new type of cycle that uses thermal energy (industrial waste heat, waste heat or solar energy, etc.) to drive the heat exchange of an adsorber through direct medium contact, and adopts The new cycle of adsorption refrigeration system. Background technique [0002] Solid adsorption refrigeration can be driven by thermal energy. Therefore, it can not only alleviate the shortage of power supply, but also effectively utilize a large amount of low-grade thermal energy; at the same time, compared with traditional compression refrigeration, it has ODP (ozone depletion index) and GWP (greenhouse effect index) Both are zero environmental protection advantages; in addition, the adsorption refrigeration system basically has no moving equipment, so it is particularly suitable for mobile equipment such as cars and ships, as well a...

Claims

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Application Information

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IPC IPC(8): F25B17/08
CPCY02B30/62Y02A30/27
Inventor 崔群张海军姚虎卿
Owner NANJING UNIV OF TECH
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