About N-tetradecane energy storage
A cold storage unit can store the cold energy off-peak and release it for building cooling on-peak, which can reduce the electricity load of air conditioning systems. n-tetradecane is a suitable cold storage material for air conditioning, with a phase change temperature of is 4–8 °C and a phase change enthalpy of 200 kJ/kg.
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About N-tetradecane energy storage video introduction
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6 FAQs about [N-tetradecane energy storage]
Does N -tetradecane emulsifier influence the performance of a microencapsulated phase change material?
A novel silica (SiO 2 )/ n -tetradecane microencapsulated phase change material (MEPCM) was synthesized by in situ interfacial polycondensation. The influences of the amount of the composite emulsifier and the mass ratio of n -tetradecane and tetraethyl silicate on the MEPCM performance were systematically investigated.
Can N-tetradecane core material be encapsulated by silica shell material?
The results showed that the n -tetradecane core material was successfully encapsulated by silica shell material with encapsulation ratio of 62.04%. The MEPCM had a melting enthalpy of 140.5 kJ kg –1 and thermal conductivity of 0.139 W m –1 K –1.
Why is N -tetradecane encapsulated fast?
The excessively high reaction rate caused the n -tetradecane droplets to be quickly encapsulated, where the encapsulation rate still reaches 80.9%. However, when the acidity of the experimental system is relatively high (PH = 4.0), the reaction speed is slow.
What is the phase change enthalpy of N -tetradecane microcapsules?
In this work, the optimal preparation conditions of n -tetradecane microcapsules are studied, and the encapsulation rate is increased to 85.6%. The phase change enthalpy of n -tetradecane microcapsules is about 178.1 J·g −1. Fig. 9. Overall picture and wall thickness of microcapsules. Fig. 10.
Can N -tetradecane microcapsule lhff be used as a secondary refrigerant?
If n -tetradecane microcapsule LHFF is used as a secondary refrigerant in a centralized cooling station for air conditioning system with a supply and return water temperature of 2/12 °C, the evaporation temperature of the refrigeration unit only needs to reach about −3 °C.
Is silica/n-tetradecane mepcm good for cold energy storage?
The MEPCM had a melting enthalpy of 140.5 kJ kg –1 and thermal conductivity of 0.139 W m –1 K –1. Because of its excellent thermal performance and thermal stability, silica/ n -tetradecane MEPCM displays a good potential for cold energy storage. To access this article, please review the available access options below.