Examines the experience of Thorn Automation in the field of magnetometery in both defence and commercial markets. The cornerstone of their capability has come from using high performance fluxgate sensors. Looks at the different kinds of magnetometer available and describes their applications for...

We report a novel defrosting control method for refrigeration systems including refrigerators and heat pumps that commonly use time control or time–temperature control to determine the defrosting start-time. However, these methods do not provide accurate defrosting start-times due to...

A study has been conducted to compare the performances of the four novel RV (revolving vane) expander design variants at suction pressures of between 2 and 30 bars, a constant discharge pressure of 1 atm and operating speeds of between 600 and 1800 rev min−1. The aspects considered were...

Adsorption heat pump and refrigeration systems are noiseless, non-corrosive and environment friendly. For these reasons the research activities in this sector are still increasing to solve the crucial points that make these systems not yet ready to compete with the well-known vapor compression...

EVRCs (ejector-expansion vapor-compression refrigeration cycles) applied in domestic refrigerator-freezers have been concerned duo to their potentials of improving cycle performance. However, the previously presented EVRCs with various cycle configurations are still limited to favorable...

Presently out of the total energy consumption, a large share of energy is being used by refrigeration and air conditioning equipments. The present study is based on literature review on the refrigeration systems, currently used refrigerant–absorbent pairs and also on different sources of...

This paper presents a new TRNSYS model of a refrigeration system incorporating phase change material (PCM) for mobile transport. The PCTSU is charged by an off-vehicle refrigeration unit and the PCM provides cooling when discharging and the cooling released is utilized to cool down the...

This paper aims at providing a literature review on the recent development in ejectors, applications of ejector refrigeration systems and system performance enhancement. The paper presents useful guidelines regarding background and operating principles of ejector. A number of studies are...