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Annamalai Mani

Bio: Annamalai Mani is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Injector & Heat transfer. The author has an hindex of 19, co-authored 62 publications receiving 1096 citations. Previous affiliations of Annamalai Mani include Indian Institutes of Technology & Presidency University, Kolkata.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a computer simulation of a vapour jet refrigeration system is carried out using a one-dimensional model based on mass, momentum and energy balances, which is in good agreement with the available experimental performance from the literature.

139 citations

Journal ArticleDOI
TL;DR: In this article, an experimental investigation of the performance of a vapour ejector refrigeration system is described, which uses R134a as working fluid and has a rated cooling capacity of 0.5 kW.
Abstract: The experimental investigation of the performance of a vapour ejector refrigeration system is described. The system uses R134a as working fluid and has a rated cooling capacity of 0.5 kW. The influence of generator, evaporator and condenser temperatures on the system performance is studied. This kind of system can be operated with low grade thermal energy such as solar energy, waste heat, etc. The operating conditions are chosen accordingly as, generator temperature between 338 K and 363 K, condenser temperature between 299 K and 310.5 K, and evaporator temperature between 275 K and 285.5 K. Six configurations of ejectors of different geometrical dimensions are selected for the parametric study. The performance of the refrigeration system at different operating temperatures is presented.

133 citations

Journal ArticleDOI
TL;DR: In this paper, a computer code based on existing one-dimensional ejector theory is written to analyze performance of the ejector, which includes effects of friction at the constant-area mixing chamber and change in specific heat of the working fluid besides internal irreversibility of ejector.

123 citations

Journal ArticleDOI
TL;DR: In this article, the performance of ejector refrigeration system has been experimentally studied with three different area ratio ejectors by varying operational parameters namely generator, condenser and evaporator temperatures.

78 citations

Journal ArticleDOI
TL;DR: In this article, a computer code based on existing one dimensional ejector theory has been developed to carry out a study on performance of the system, which includes effects of change in specific heat of the working fluid and friction at the constant area mixing chamber besides internal irreversibility of the ejector.

68 citations


Cited by
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Journal ArticleDOI
TL;DR: In this article, the authors discuss the importance of water resources in modern societies and the challenges facing modern societies, while water covers about two thirds of the surface of the earth, while air covers less than one third of it.

397 citations

Journal ArticleDOI
TL;DR: In this article, to augment evaporation of the still basin water, fins were integrated at the basin of the solar still to accelerate the production rate, and for further increase in exposure area sponges were used.

385 citations

Journal ArticleDOI
TL;DR: In this paper, a comprehensive literature review on ejector refrigeration systems and working fluids is presented, which deeply analyzes ejector technology and behavior, refrigerant properties and their influence over ejector performance.
Abstract: The increasing need for thermal comfort has led to a rapid increase in the use of cooling systems and, consequently, electricity demand for air-conditioning systems in buildings. Heat-driven ejector refrigeration systems appear to be a promising alternative to the traditional compressor-based refrigeration technologies for energy consumption reduction. This paper presents a comprehensive literature review on ejector refrigeration systems and working fluids. It deeply analyzes ejector technology and behavior, refrigerant properties and their influence over ejector performance and all of the ejector refrigeration technologies, with a focus on past, present and future trends. The review is structured in four parts. In the first part, ejector technology is described. In the second part, a detailed description of the refrigerant properties and their influence over ejector performance is presented. In the third part, a review focused on the main jet refrigeration cycles is proposed, and the ejector refrigeration systems are reported and categorized. Finally, an overview over all ejector technologies, the relationship among the working fluids and the ejector performance, with a focus on past, present and future trends, is presented.

359 citations

Journal ArticleDOI
TL;DR: A literature review on ejectors and their applications in refrigeration can be found in this article, where a number of studies are grouped and discussed in several topics, i.e. background and theory of ejector and jet refrigeration cycle, performance characteristics, working fluid and improvement of jet refrigerator.
Abstract: This paper provides a literature review on ejectors and their applications in refrigeration. A number of studies are grouped and discussed in several topics, i.e. background and theory of ejector and jet refrigeration cycle, performance characteristics, working fluid and improvement of jet refrigerator. Moreover, other applications of an ejector in other types of refrigeration system are also described.

339 citations

Journal ArticleDOI
TL;DR: In this article, a new combined power and refrigeration cycle is proposed, which combines the Rankine cycle and the ejector refrigeration cycles, and an exergy analysis is performed to guide the thermodynamic improvement for this cycle.

244 citations