Effect of Throttling Variation on the Performance of Vapour Compression Refrigeration System

Farayibi, Peter Kayode; Mogaji, Taye Stephen; Erinle, Tunji John

doi:10.9734/bjast/2016/23086

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…Beban pendinginan total dibagi menjadi empat beban terpisah, tetapi dalam penelitian ini beban pendinginan yang dihitung hanya tiga, yaitu: 1. Beban produk Beban produk dapat dihitung, dengan persamaan Beban panas melalui dinding dapat dihitung, dengan persamaan [5]- [7]:…”

Section: Beban Pendinginanunclassified

Desain Evaporator Sistem Refrigerasi Mekanik Untuk Kapal Ikan 3 Gt

Norimarna

Ciptoadi

Sipahelut

et al. 2022

ale

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Es balok sebagai salah satu media pendingin ikan sering digunakan oleh nelayan tradisional untuk menyimpan ikan di dalam palka, akan tetapi penggunaannya dinilai kurang efektif karena dapat menyebabkan kerugian bagi nelayan. Sehingga, harus dibuat sistem pendingin aktif sebagai pengganti es balok, salah satu bagian dari sistem pendingin aktif adalah evaporator. Penelitian ini bertujuan untuk mengetahui beban panas yang harus dienyahkan oleh evaporator serta mendesain evaporator untuk kapal ikan 3 GT. Penelitian ini dilakukan dengan metode observasi lapangan, wawancara, dan studi literature kemudian dilakukan pengolahan data dan analisis data. Dari hasil perhitungan panas yang harus dienyahkan oleh evaporator sebesar 6,410270319 kJ/hr, serta desain evaporator adalah sebagai berikut, diameter pipa evaporator sebesar 9,53mm, jenis pipa yaitu pipa tembaga jenis K, panjang keseluruhan pipa sebesar 21,70667314 m, tipe evaporator bare, serta sistim refrigrasi yang digunakan adalah sistim refrigerasi kering. COP yang didapat sebesar 90 %.

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Section: Beban Pendinginanunclassified

Desain Evaporator Sistem Refrigerasi Mekanik Untuk Kapal Ikan 3 Gt

Norimarna

Ciptoadi

Sipahelut

et al. 2022

ale

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“…There are three (3) main classifications of refrigeration system according to their working principle, these include: vapour compression; vapour absorption-, and gas cycle refrigeration systems. However, vapour compression refrigeration system (VCRS) is the most frequently used amongst others classified and the major components of VCRS include: compressor, condenser, expansion valve universally known as throttling device and evaporator [3]. However, vapour compression refrigeration system (VCRS) is the most popular and commonly used domestic refrigeration system.…”

Section: Introductionmentioning

confidence: 99%

The Performance Evaluation of a Plate Type Evaporator and a Shell and Tube Evaporator

Ugochukwu¹,

Ola²

2019

IJTRS

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In this paper, a refrigeration system using shell and tube evaporator will be converted to a refrigeration system using a plate type evaporator. The performance of the modified system will be evaluated and compared with the performance of the plate type evaporator. A refrigeration system working on a shell and tube evaporator was selected, charged with refrigerant R134a. Temperature and pressure readings were taken at both the inlet and outlet of both the evaporator and condenser unit respectively. The refrigeration system with shell and tube evaporator was then removed and replaced with a plate type evaporator. The system was evacuated, charged with refrigerant and readings were taken at both the inlet and outlet of the evaporator and condenser respectively. Experimental results obtained shows that the refrigeration efficiency of the shell and tube evaporator was 64.33% and that of the plate type evaporator was 85.24%. The result obtained shows that the COP of the refrigerator using the plate type evaporator is higher than that of the refrigerator using the shell and tube evaporator. The refrigeration system working on a plate type evaporator has higher refrigeration capacity and lower compressor work, low liquid hold up, higher surface area than the shell and tube evaporator system.

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Performance Enhancement of Window-Type Air-Conditioning Units

Al-Sayyab

2018

Int. J. Air-Cond. Ref.

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In this work, the performance of window-type air-conditioning units was improved. The study was achieved by adding a diffuser at the compressor outlet. An experimental investigation was carried out on 2 RT window-type air-conditioning units with controlled environmental zones. According to the compressor-outlet conditions, an ANSYS-fluent program was used to achieve a suitable diffuser geometry for maximum pressure increase. The refrigeration cycle model was programmed in Engineering Equation Solver (EES). The experimental work shows that using a diffuser of (5[Formula: see text]mm ID [Formula: see text] 9[Formula: see text]mm OD [Formula: see text] 12[Formula: see text]mm L) in an air-conditioning system will decrease the required compressor pressure ratio by 6% from the base case with an overall pressure increase of 1.4 bar and a 29% COP increase from the base case[Formula: see text]

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Effect of Throttling Variation on the Performance of Vapour Compression Refrigeration System

Cited by 4 publications

References 2 publications

Desain Evaporator Sistem Refrigerasi Mekanik Untuk Kapal Ikan 3 Gt

Desain Evaporator Sistem Refrigerasi Mekanik Untuk Kapal Ikan 3 Gt

The Performance Evaluation of a Plate Type Evaporator and a Shell and Tube Evaporator

Performance Enhancement of Window-Type Air-Conditioning Units

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