• M.K. Chopra
• Indrajeet kumar

Refrigeration systems consume a considerable amount of energy. Taking as example supermarket refrigeration systems for up to 30 minutes save of the whole energy, used pulse dimension modulation technique (pwm) consumption within the market. Because of the thermal capability created up by the refrigerated merchandise within the system there's a possibility for optimizing the power consumption by utilizing load shifting methods. Describes the dynamics and also the modeling of a vapour compression refrigeration system required for sufficiently realistic estimation of the power consumption and its minimization. This result in a non-convex operates with probably multiple extreme. Such a operate cannot directly be optimized by normal strategies and a analysis of the system’s constraints is presented. The description of power consumption contains nonlinear terms that are approximated by linear functions within the control variables and also the error by doing therefore investigated. Finally a minimization procedure for the presented drawback is usually recommended. The facility conversion unit in Pulse width Modulated (PWM) drives. During this sort of drive, Current systems use on/off control, wherever the unit primarily operates within the long lasting start up transients. Supermarket refrigeration technology is developing rapidly and there is considerable interest in alternative refrigeration systems and refrigerants. The intention is to highlight differences in the key factors between today's good practice systems and possible future system alternatives with today's known technology. A large fraction (typically, concerning 80%) of practical refrigerators are of vapour compression sort and operate with energy input. In most cases the energy is derived from electrical motors. Vapour absorption refrigerators that operate with heat input are the second most generally used refrigeration systems. Modeling and analysis work was done on varied market refrigeration systems for their energy efficiency, and annual operating cost. The dimensions of the installation are often varied to suit individual needs. These cover a large vary of applications like food process, preservation and transport, comfort cooling, commercial and industrial air con, producing, energy production, commercially successful compression refrigeration systems Since then, the refrigeration technology has full-grown tremendously, influencing the majority aspects of human life. Steady-state refrigeration systems within which the cooling impact is continuous; the refrigerant flow is steady and in one direction. Vapour compression refrigeration systems employed in domestic refrigerators and air conditioners are typical samples of steady-state refrigeration systems. Sterling refrigerators and sorption systems are samples of periodic refrigeration systems.

PERFORMANCE ENHANCEMENT OF REFRIGERATION SYSTEM USING PWM TECHNIQUE

"PERFORMANCE ENHANCEMENT OF REFRIGERATION SYSTEM USING PWM TECHNIQUE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.95-112, February-2019, Available :http://www.jetir.org/papers/JETIR1902213.pdf

"PERFORMANCE ENHANCEMENT OF REFRIGERATION SYSTEM USING PWM TECHNIQUE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp95-112, February-2019, Available at : http://www.jetir.org/papers/JETIR1902213.pdf