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267  Articles
1 of 28 pages  |  10  records  |  more records»
VCR system  is an energy conversion device that uses a mechanical vapour compression cycle in the process. The performance of the VCR system using environmentally friendly refrigerants is a significant issue, and much research is still underway to ev... see more

The object of research is the effect of thermohydraulic irreversibility of energy processes in the cycle of a refrigeration machine using an ozone-safe non-azeotropic mixture as a refrigerant on its energy efficiency. One of the most problematic places du... see more

Actualmente las librerías para cálculo de propiedades termodinámicas se basan en la ecuación de la energía de Helmholtz, cuya implementación informática sobrepasa los requerimientos de memoria de la mayoría de microcontroladores, estando además escritas e... see more

In the present paper, it is presented about the drastic changes in refrigerants in VCRS from the past days keeping in mind the need of changing the past refrigerants due to the rapid depletion of our Ozone layer. When the depletion of Ozone layer was obse... see more

The purpose of this research is to conduct a two-phase fluid analysis and simulation for examining the influence of refrigerant (R134a/R1234yf) properties on cooling performance of an automobile HVAC (Heating, Ventilation and Air Conditioning) evaporator ... see more

This work presents an experimental study on environment friendly mixed refrigerant to replace R134a in vapour compression refrigeration (VCR) System. The mixed refrigerants investigated are propane (R290), butane (R600), isobutene (R600a) and R134a. Even ... see more

Os refrigerantes são suscetíveis à composição química de suas embalagens, mesmo mantidas as condições de envase, controle de qualidade e a conservação das propriedades do produto, há mudança no sabor por inconvenientes oriundos de seu acondicionamento. No... see more

The object of research is the effect of thermohydraulic irreversibility of energy processes in the cycle of a refrigeration machine using an ozone-safe non-azeotropic mixture as a refrigerant on its energy efficiency. One of the most problematic places du... see more

The design and comparative engineering economic analysis of two Air-conditioning (AC) systems, mini-split and variable refrigerant flow (VRF), for the new Engineering Complex Building, at the College of Engineering and Environmental Studies, Ibogun Campus... see more

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