The paper aims at developing a hybrid solar-assisted air conditioner system for performance enhancement and energy efficiency improvement. To increase sub-cooling of the refrigerant at partial loads, we propose a new discharge bypass line together with an inline solenoid valve, installed after the compressor to regulate the mass flow rate of the refrigerant vapour passing through a hot water st...

The utilization of condensate water as a compressor-discharge cooler results in subcooling on the condenser outlet. On other hand, split-type air conditioner (A/C) with R32 working fluid can provide higher temperatures than refrigerants used same A/C. Therefore, A/C R32, equipped heat exchanger by utilizing waste-condensate cooler, has promising potential to produce largest effect air-condition...

According IS01217 standard and metheds of performance test for general dis-placement air compressor of China, a m1crocomputor measurement and control system for performent test of compressor has been set up. All the test can be carried out without manual interference,it has been real1zed collecting and treating data automatically.Using some hardward and softward ~teps,the accurary and repetitio...

The increase of condenser temperature and pressure in air-conditioning leads to decreased cooling capacity the power consumption. Evaporative could improve thermal performance system. In this study, evaporative module was installed before reduce inlet air unit. impact on conditioning system's overall determined by varying pad discharge water flowrate 880, 1040, 1200 mL/min. load 2000 W employed...

This paper proposes a new approach of cooling system for home. The main advantages of this cooling system are it consumes very low power, no emission of harmful gas and support for health. The basic principle of the system is free cooling is taking place when the external ambient air entropy is less than the indoor air enthalpy and the cool external air is transferred to the building room direc...

An analytical study was carried out to investigate the performance of an oil supplying system of a variable speed compressor using a commercial CFD program. The simulations for the oil supplying system with the oil and air mixture were performed by varying compressor speed from 40 Hz to 90 Hz. Comparing the predicted with the measured data on the modified scroll compressor validated the simulat...

An efficient and sufficiently power dense air compressor/expander is the key element in a Compressed Air Energy Storage (CAES) approach. Efficiency can be increased by improving the heat transfer between air and its surrounding materials. One effective and practical method to achieve this goal is to use water droplets spray inside the chamber when air is compressing or expanding. In this paper,...

The paper presents the neuro-fuzzy controller algorithm for air conditioning system. Neuro-fuzzy control combines the learning capabilities of neural networks and control capabilities of fuzzy logic control. The neurofuzzy controller for air conditioning system takes two inputs from temperature and humidity sensors and controls the compressor speed. The experimental results of the developed sys...

Due to worldwide demand for energy saving, many new technologies have been developed in the air conditioning field. Packaged indoor unit and outdoor unit vapor compression refrigerating heat pump system using the change of refrigerant’s condition between liquid and gas is a recently developed air conditioning system. The cooling cycle is composed of an evaporator, a condenser, a compressor, an ...