NDLI: Effect of heat exchanger influencing coefficient of performance of a hermetic compressor

Content Provider	IEEE Xplore Digital Library
Author	Edison, G. Suresh, A. Narayana Rao, K.
Copyright Year	2013
Description	Author affiliation: Sch. of Mech. & Building Sci, VIT Univ., Vellore, India (Edison, G.) \|\| Sreyas Inst. of Eng. & Technol. (SRYS), Hyderabad, India (Suresh, A.) \|\| Osmania Univ., Hyderabad, India (Narayana Rao, K.)
Abstract	Compressor is one of the main parts and it is thus the first component of the refrigerator to be modeled. Compressor would consume less work when its inlet temperature is low which is understood from the T-S diagram as the constant pressure lines diverge towards right. The density decrease due to suction gas heating and mixing is a very important factor affecting mass flow rate, and can be characterized by a single parameter, the effectiveness of heat transfer driven by the difference between the temperature at the suction line and the discharge port. The present paper is to compare theoretical and experimental values and to develop an effective suction gas heat exchanger for hermetically sealed compressor. An attempt to achieve the required temperature with in less time when compared to the refrigeration unit working without heat exchanger had been done using laboratory set up with a single tube counter flow heat exchanger. The required temperature had been achieved with in 30 minutes when compared to the refrigeration unit working without heat exchanger. Though the actual COP values are much smaller compared to than Carnot COP values, it had been proved that the values obtained with heat exchanger is 10% more than the values with out Heat exchanger.
Sponsorship	IEEE Madras Sect.
Starting Page	228
Ending Page	233
File Size	934726
Page Count	6
File Format	PDF
ISBN	9781467361491
e-ISBN	9781467361507
DOI	10.1109/ICEETS.2013.6533387
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-10
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils Radiation detectors COP Refrigerant Electron tubes Suction line cooling Density T-S plot Heating Heat exchanger Abstracts Refrigeration Manganese
Content Type	Text
Resource Type	Article

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Symbols cop = coefficient of performance,.

Effect of heat exchanger influencing coefficient of performance of a hermetic compressor

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