РІВНЯННЯ ДЛЯ РОЗРАХУНКУ В’ЯЗКОСТІ ТА ТЕПЛОПРОВІДНОСТІ ХОЛОДОАГЕНТІВ R32, R125 и R134a

Transport Properties of Refrigerant Mixtures: Thermal Conductivity

In the present work, the integral equations method is used to calculate transport properties of polar fluids. For this goal, we use the Stockmayer potential and examine theoretically the thermal conductivity of several refrigerant mixtures such as R125+R134a, R125+R32, R125+R152a, R134a+R32, R152a+R32, R134a+R143a, and R125+R143a. We solve numerically the Ornstein-Zernike (OZ) equation usin...

Experimental Comparison of the Performance of Refrigerants R134a and R32/R134a in Dry Expansion and Liquid Recirculation Refrigerating Systems

The ability of zeotropic mixtures with a temperature glide to operate in liquid recirculation systems is investigated in this paper, and the preliminary results of an experimental comparison between the performance of R134a and of zeotropic mixture R32/Rl34a, (25/75 by mass) are presented. The perfonnance of Rl34a operating in dry expansion mode are also presented as baseline data. INTRODUCTION...

Вполне интегрируемые на Zd+ потенциалы для электромагнитного оператора Шрёдингера: лучевые асимптотики и задача рассеянияВполне интегрируемые на Zd+ потенциалы для электромагнитного оператора Шрёдингера: лучевые асимптотики и задача рассеяния

Право Доступа К Информации Для Пользователей Со Специальными Потребностями И Ограничениями Жизнедеятельности the Right to Access to Information for Users with Special Needs and Disabilities Право Доступу До Інформації Для Користувачів Зі Спеціальними Потребами Та Обмеженнями Життєдіяльності

In the information society the right to access to information is a must. Ensuring equal access to information for all is one of library's missions. People with special needs and disabilities make between 15 and 25 % of the population in world's countries. The majority of this group of people are not library users because libraries do not ensure services adapted to their special needs. Many of t...

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