Ammonia Low-Pressure Receiver Systems
نویسنده
چکیده
Ammonia can be applied to any type and size of refrigeration system from domestic refrigeration to commercial refrigeration and air-conditioning to industrial refrigeration. However, it is desirable to minimize the charge to prevent toxic effects and, sometimes to use secondary refrigerants, such as volatile carbon dioxide, to keep ammonia away from the general public. This article describes a method by which the toxic refrigerant ammonia can be used in low-charge automatic systems with maximum efficiency and minimum risk.
منابع مشابه
High Pressure Ammonia Systems – New Opportunities
Recent developments in the industrial refrigeration, air conditioning and heat pump sector have included significant increases in the typical operating pressures of systems. With ammonia this offers several opportunities to capitalise on the high critical temperature and high index of compression of the refrigerant in order to deliver heat efficiently in the temperature range 70C – 90C. It also...
متن کاملEntropy and Exergy Analysis of a Heat Recovery Vapor Generator for Ammonia-Water Mixtures
Recently power generation systems using ammonia-water binary mixtures as a working fluid have been attracting much attention for their efficient conversion of low-grade heat sources into useful energy forms. This paper presents the First and Second Law thermodynamic analysis for a heat recovery vapor generator (HRVG) of ammonia-water mixtures when the heat source is low-temperature energy in th...
متن کاملThe Study of the Impact of Temperature and Wind In the Southern Low Pressure Systems
This research aims to study the impact of temperature and wind in the southern low-pressure system and its associated precipitation in the southern regions of Iran. As The southern low pressure system moves eastward, it crosses the southern regions of Iran, causing medium and heavy rainfall in these areas. In this study, two southern low-pressure systems that caused heavy rainfall on March 11, ...
متن کاملClosed-system Apparatus for Aeration-diffusion: Application to Determination of Blood Ammonia.
An apparatus is proposed primarily for comparison with other methods for determination of “blood ammonia,” and studies of involved factors. It employs the aeration-diffusion method of Van Slyke and Cullen, but in a closed system which avoids loss of ammonia and contamination with ammonia from the outside. Incomplete liberation of ammonia is avoided by the use of a moving thin film ever renewed ...
متن کاملR-32 As An Alternative To Ammonia In Industrial Refrigeration
Ammonia is recognised to be the most commonly used refrigerant in industrial systems however it is limited in some applications by its toxicity. R-32 has similar flammability characteristics and a similar pressure-temperature relationship, and through its use as a blend component it has become widely used and readily available. This paper compares and contrasts ammonia and R-32 with specific re...
متن کامل