Feasibility and design studies for heat recovery from a refrigeration system with a canopus heat exchanger

Kaushik, Sachin; Singh, Monika

doi:10.1016/0890-4332(95)90046-2

Cited by 19 publications

(4 citation statements)

References 8 publications

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“…The exchanged heat of the sanitary hot water system is equal to the enthalpy drop from the state C to state X [12]:…”

Section: The Mathematical Model Of the Sanitary Hot Water Systemmentioning

confidence: 99%

Thermodynamic Simulation of CCP in Air-Cooled Heat Pump Unit with HFCs and CO<sub>2</sub> Trans-Critical

Chen¹,

Liao²,

Gong³

2018

JPEE

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The exergy analysis and finite time thermodynamic methods had been employed to analyze the compound condensation process (CCP). It was based on the air-cooling heat pump unit. The cooling capacity of the chiller unit is about 1 kW, and the work refrigerant is R22/R407C/R410A/CO 2. The MATLAB/SIMULINK software was employed to build the simulation model. The thermodynamic simulation model is significant for the optimization of parameters of the unit, such as condensation and evaporation temperature and mass flow of the sanitary hot water and size of hot water storage tank. The COP of the CCP of R410A system is about 3%-5% higher than the CCP of the R22 system, while CCP of the R407C system is a little lower than the CCP of R22 system. And the CCP of CO 2 trans-critical system has advantage in the hot supply mode. The simulation method provided a theoretical reference for developing the production of CCP with substitute refrigerant R407C/R410A/CO 2 .

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“…The exchanged heat of the sanitary hot water system is equal to the enthalpy drop from the state C to state X [12]:…”

Section: The Mathematical Model Of the Sanitary Hot Water Systemmentioning

confidence: 99%

Thermodynamic Simulation of CCP in Air-Cooled Heat Pump Unit with HFCs and CO<sub>2</sub> Trans-Critical

Chen¹,

Liao²,

Gong³

2018

JPEE

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“…Kaushik and Singh [1] have found that 40% of condenser heat can be recovered in a refrigeration unit by experimentation with waste heat recovery system through the Canopus heat exchanger for a particular set of operating condition.…”

Section: Experimental Investigation and Performance Evaluation Of A Tmentioning

confidence: 99%

Experimental Investigation and Performance Evaluation of a Three in one Vapour Compression System using Refrigerant R134a.

Fande¹,

Andhare²,

Patil³

2015

IJERT

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The present research is concerned with the study and experimental investigation of the effect of HFC refrigerant R134a on a vapour compression refrigeration system by using two expansion devises with the conservation of energy by waste heat recovery system. Here two different evaporators are used for air cooling and water chilling respectively and a water cooled condenser is used to produce hot water. The existing system can be easily retrofitted as a waste heat recovery device and the existing R22 refrigerant can be replaced by R134a with minor modifications. R134a play a vital role for the protection of global environment and maintain ecological balance, from the view point of energy conservation. The maximum temperature achieved in water tank with 50 litre of water is 45 C during 3 to 4 working hour. After that performance of system decreases so it needs a regular use of that hot water which can be used for household and industrial purposes.

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“…Olszewski [11] analyzed the economic viability of Heat Pump desuperheaters for supplying domestic hot water, energy saving of system in summer was dramatic. Wu Xiaoping [12], Wen X S, Guang Q S [13], Ji Jie [14,15], Jiang Huimin [16,17,18] put forward different air conditioning systems recovering condenser heat, developed research on controlling mode and component matching, performing the task of refrigerating, heating and domestic hot water supply. In recent years, major air conditioning manufacturers had improved their equipments and marketed a new generation of air-source energy-saving products so as to recover condenser heat and save energy.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, major air conditioning manufacturers had improved their equipments and marketed a new generation of air-source energy-saving products so as to recover condenser heat and save energy. For example, the following products of recovering condenser heat have been made by American Carrier Company [19] such as 19DE series double tube bundle condenser heat pump unit with heat recovery, double tube bundle condenser refrigeration unit with heat recovery by American Trane company, a new generation of industrial heat pump by American Westinghouse and Westinghouse Electric Corporation [20] and energy-saving super heat pump (SHP) [21] by Ebara corporation in Japan.…”

Section: Introductionmentioning

confidence: 99%

Experimental research of performance on water-water multi-functional system

Zhu

Nie

Gong

et al. 2011

2011 IEEE 2nd International Conference on Computing, Control and Industrial Engineering

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A new type of water-water multi-functional system consisting of double four-way valve is studied. System fundamentals and the operation modes are introduced. Experimental research on operation characteristics of refrigerating capacity, heating capacity, suction and discharge temperature and pressure shows that the unit operates reliably long in different operation conditions, and that the variation of characteristics is within a reasonable range. Coefficient of performance of the unit in refrigerating and hot water mode is highest and EER reaches up to 5.2 with the minimal value approximately 4, as the service efficiency of the unit is improved by recovering the condenser heat to heat hot water.

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Feasibility and design studies for heat recovery from a refrigeration system with a canopus heat exchanger

Cited by 19 publications

References 8 publications

Thermodynamic Simulation of CCP in Air-Cooled Heat Pump Unit with HFCs and CO<sub>2</sub> Trans-Critical

Thermodynamic Simulation of CCP in Air-Cooled Heat Pump Unit with HFCs and CO<sub>2</sub> Trans-Critical

Experimental Investigation and Performance Evaluation of a Three in one Vapour Compression System using Refrigerant R134a.

Experimental research of performance on water-water multi-functional system

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Feasibility and design studies for heat recovery from a refrigeration system with a canopus heat exchanger

Cited by 19 publications

References 8 publications

Thermodynamic Simulation of CCP in Air-Cooled Heat Pump Unit with HFCs and CO&lt;sub&gt;2&lt;/sub&gt; Trans-Critical

Thermodynamic Simulation of CCP in Air-Cooled Heat Pump Unit with HFCs and CO&lt;sub&gt;2&lt;/sub&gt; Trans-Critical

Experimental Investigation and Performance Evaluation of a Three in one Vapour Compression System using Refrigerant R134a.

Experimental research of performance on water-water multi-functional system

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Thermodynamic Simulation of CCP in Air-Cooled Heat Pump Unit with HFCs and CO<sub>2</sub> Trans-Critical

Thermodynamic Simulation of CCP in Air-Cooled Heat Pump Unit with HFCs and CO<sub>2</sub> Trans-Critical