The basic principle of refrigeration is simple. You simply pass a colder liquid continuously around the object that is to be cooled. This will take heat from the object. In the example shown, a cold liquid is passed over an apple, which is to be cooled. Due to the temperature difference, the apple loses heat to the refrigerant liquid.
Components of Refrigerator & Working

The refrigerant in turn is heated due to heat absorption from the apple. It is clear that, if we can produce cold liquid refrigerant continuously, we can achieve continuou ....etc

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role of chemistry in domestic activities project

Malnutrition has shown to be an important concern in women, children, and the elderly. Because of pregnancies and breastfeeding, women have additional nutrient requirements. Children can be at risk for malnutrition even before birth, as their nutrition levels are directly tied to the nutrition of their mothers.Breastfeeding can reduce rates of malnutrition and mortality in children, and educational programs for mothers could have a large ....etc

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Manufacturing of energy efficient domestic refrigerators


Background
The Meth panel recommended the reformatted versions of the proposed new methodologies based on
the cases NM0235 and NM0247 to the Board for approval at its thirty-second and thirty-third
meetings.
The new methodology, based on NM0235, is designed for project activities undertaken by
manufacturers of domestic refrigerators aiming at increasing the energy efficiency of manufactured
appliances.
The new methodol ....etc

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Malnutrition has shown that an important task of the women, children and the elderly. Because of pregnancy and breastfeeding, women have additional nutrient requirements. Children may be at risk from malnutrition even before birth, as their power level is directly related to the power of their mothers.Breastfeeding can reduce the rates of malnutrition and mortality among children, and educational programmes for mothers can have a big impact on these variables. An elderly high risk of malnutrition because of the unique complications, such as cha ....etc

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ABSTRACT
The objective of this study is to forecast the domestic water needs for the Northern Malaysia until the year 2010. The IWR-MAIN software was used in this study. The Constant Use Rate Model and the Build Forecast Model were explored in this study. The forecast is done based on targets outlined in Kedah Action Plan 2010, which intends to transform the Kedah state to become a developed state by the year 2010. It is assumed that the high performance targets outlined in Kedah Action Plan can be achieved by the year 2010. The fore ....etc

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ppt working principle of pulse tube refrigerator

Abstract

The working fluid for the pulse tube refrigerator is Helium, which is non-toxic to humans and harmless to the environment. The Pulse Tube Refrigeration unit offers a viable alternative to units that currently require CFC and HCFC working fluids. Pulse Tube Refrigerators can be operated over wide range of temperatures. These units can be used in numerous space and commercial applications, including food freezers freeze dryers. It can also be used to cool detectors and electronic devices ....etc

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