scholarly journals An experimental study of the Effect of capillary tube diameter and configuration on the performance of a simple vapour compression refrigeration system

2014 ◽  
Vol 11 (3) ◽  
pp. 101-113 ◽  
Author(s):  
Shashank shekhar pathak ◽  
◽  
Prakhar shukla ◽  
Sanjeev chauhan ◽  
A.K. Srivastava
Keyword(s):  
Experimental Study ◽  
Capillary Tube ◽  
Tube Diameter ◽  
Refrigeration System ◽  
Vapour Compression

scholarly journals Cop Enhancement of Vapour Compression Refrigeration System

2021 ◽  
pp. 1-6
Author(s):  
B Sairamakrishna ◽  
◽  
T Gopala Rao ◽  
N Rama Krishna ◽  
◽  
...  
Keyword(s):  
Tube Diameter ◽  
Coefficient Of Performance ◽  
Refrigeration System ◽  
Expansion Valve ◽  
Compressor Inlet ◽  
Work Input ◽  
Compressor Work ◽  
Vapour Compression ◽  
Design And Testing ◽  
Nozzle Inlet

This experimental investigation exemplifies the design and testing of diffuser at compressor inlet and nozzle at condenser outlet in vapour compression refrigeration system with the help of R134a refrigerant. The diffuser with divergence angle of 12°,14° and the nozzle with convergent angle 12°,14° are designed for same inlet and outlet diameters. Initially diffusers are tested at compressor inlet diffuser is used with inlet diameter equal to exit tube diameter of evaporator and outlet tube diameter is equal to suction tube diameter of the compressor. Diffuser helps to increases the pressure of the refrigerant before entering the compressor it will be helps to reduces the compression work and achieve higher performance of the vapour compression refrigeration system. Then nozzles are testing at condenser outlet, whereas nozzle inlet diameter equal to discharging tube diameter of condenser and outlet diameter equal to inlet diameter of expansion valve. Additional pressure drop in the nozzle helped to achieve higher performance of the vapour compression refrigeration system. The system is analyzes using the first and second laws of thermodynamics, to determine the refrigerating effect, the compressor work input, coefficient of performance (COP).

scholarly journals Effect of capillary tube on the performance of a simple vapour compression refrigeration system

2014 ◽  
Vol 11 (3) ◽  
pp. 05-07
Author(s):  
Shashank shekhar pathak ◽  
◽  
Prakhar shukla ◽  
Sanjeev chauhan
Keyword(s):  
Capillary Tube ◽  
Refrigeration System ◽  
Vapour Compression

scholarly journals CFD Analysis of Nanorefrigerant through Adiabatic Capillary Tube of Vapour Compression Refrigeration System

2017 ◽  
Vol 7 ◽  
pp. 688-695 ◽  
Author(s):  
Oluseyi O. Ajayi ◽  
Dorothy E. Ibia ◽  
Mercy Ogbonnaya ◽  
Ameh Attabo ◽  
Agarana Michael
Keyword(s):  
Capillary Tube ◽  
Cfd Analysis ◽  
Refrigeration System ◽  
Vapour Compression

Comparison Study Analysis of Vapour Compression Refrigeration System by using Refrigerant R134 a and Mixed Nano-Particle Refrigerant

2021 ◽  
Vol 9 (VI) ◽  
pp. 806-823
Author(s):  
Abhinav Kumar
Keyword(s):  
Capillary Tube ◽  
Internal Heat ◽  
The Body ◽  
Refrigeration System ◽  
Cooling Fan ◽  
Large Numbers ◽  
The Cost ◽  
Cooling Loads ◽  
Work Done ◽  
Vapour Compression

Vapour compression refrigeration system (VCRS) fundamentally is the gadget which retains heat from a lower internal heat level and rejects it to the body or climate at higher temperature at the cost of some outside work done on it. It is broadly utilized wherever going from business use in homes and shops to enormous scope and substantial cooling loads in enterprises. They differ in size also, limit according to their cooling prerequisites. To accomplish high cooling loads with lesser energy or force utilization by the blower and work with elite It has continuously been the space of interest for plenty of analysts working in warm designing field. With the coming of nano innovation in each science and innovation field, the field of Refrigeration is likewise now not left immaculate of it. Its been seen that a portion of the metals and its compounds have high warmth dispersal limit, this framed the premise of its utilization in refrigeration. Large numbers of the nano size metal mixtures have been tried with a considerable lot of the refrigerants and ideal fixations have been found to guarantee the improved Coefficient of execution of the VCRS. In this work likewise a special mix is taken and study is to be performed on VCRS. Here the blending of nanoparticles of metal CuO of size 30-50 nm is finished with refrigerant R134a and the endeavor of discovering the ideal fixations is to be finished. Keyword: Evaporator, Compressor, Condenser, Capillary tube, Cooling Fan.

scholarly journals Enhancement of Cop of Vapour Compression Refrigeration System by using Diffusers

2019 ◽  
Vol 8 (2) ◽  
pp. 6123-6129
Keyword(s):  
Tube Diameter ◽  
Coefficient Of Performance ◽  
Divergence Angle ◽  
Refrigeration System ◽  
Suction Tube ◽  
Compressor Inlet ◽  
Work Input ◽  
Compressor Work ◽  
Vapour Compression ◽  
Design And Testing

This experimental investigation exemplifies the design and testing of four diffusers at compressor inlet and condenser inlet in the vapour compression refrigeration system with the help of R134a refrigerant .The Four diffusers with divergence angle of 10°,12°, 14° and 16° are designed for same inlet and outlet diameters. Diffusers are testing at compressor inlet first. The diffusers are used with inlet diameter equal to discharging tube diameter of evaporator and outlet diameter is equal to suction tube diameter of the compressor. One of the diffuser gives the better performance, it will fixed at compressor inlet. Then diffusers are testing at condenser inlet, diffuser inlet diameter equal to discharging tube diameter of compressor and outlet diameter equal to condenser inlet diameter The system is analyzes using the first and second laws of thermodynamics, to determine the refrigerating effect, the compressor work input, coefficient of performance(COP). During the experimental test,the coefficient of performance (COP) of the system without diffuser and with diffuser optimized at compressor inlet and condenser inlet are find out. At compressor inlet 14° divergence angle of diffuser given the maximum cop (2.46). Percentage of increase in cop is approximately 6%. At condenser inlet 12° divergence angle of diffuser given the maximum cop (2.59).Percentage of increase in cop is approximately 3%.

scholarly journals Cop Enhancement of Vapour Compression Refrigeration System

2021 ◽  
Vol 1 (2) ◽  
pp. 1-6
Author(s):  
Sairamakrishna B ◽  
T Gopala Rao ◽  
Rama Krishna, N
Keyword(s):  
Tube Diameter ◽  
Coefficient Of Performance ◽  
Refrigeration System ◽  
Expansion Valve ◽  
Compressor Inlet ◽  
Work Input ◽  
Compressor Work ◽  
Vapour Compression ◽  
Design And Testing ◽  
Nozzle Inlet

This experimental investigation exemplifies the design and testing of diffuser at compressor inlet and nozzle at condenser outlet in vapour compression refrigeration system with the help of R134a refrigerant. The diffuser with divergence angle of 12°,14° and the nozzle with convergent angle 12°,14° are designed for same inlet and outlet diameters. Initially diffusers are tested at compressor inlet diffuser is used with inlet diameter equal to exit tube diameter of evaporator and outlet tube diameter is equal to suction tube diameter of the compressor. Diffuser helps to increases the pressure of the refrigerant before entering the compressor it will be helps to reduces the compression work and achieve higher performance of the vapour compression refrigeration system. Then nozzles are testing at condenser outlet, whereas nozzle inlet diameter equal to discharging tube diameter of condenser and outlet diameter equal to inlet diameter of expansion valve. Additional pressure drop in the nozzle helped to achieve higher performance of the vapour compression refrigeration system. The system is analyzes using the first and second laws of thermodynamics, to determine the refrigerating effect, the compressor work input, coefficient of performance (COP).

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