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Assignment on Laboratory Report

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Added on  2021-04-16

Assignment on Laboratory Report

   Added on 2021-04-16

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LABORATORY REPORT:COEFFICIENT OF PERFORMANCE OF VAPOUR-COMPRESSION CYCLESSTUDENT NAMESTUDENT NUMBERGROUP NUMBERCOURSE TITLEBEng (Hons) Building Services EngineeringMODULE TITLE / CODEMechanical Services/ UBLMPB-30-3LECTURER NAMEDATE OF EXPERIMENTDATE OF REPORT SUBMISSIONI declare that the coursework submitted is my own work and has not (either in whole orpart) been submitted towards the award of any other qualification either at UWE orelsewhere. I have fully attributed/referenced all sources of information used during the
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completion of my assignment, and I am aware that failure to do so constitutes anassessment offence.Student name / student numberLaboratory Report: COEFFICIENT OF PERFORMANCE OF VAPOUR-COMPRESSION CYCLES1
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CONTENTSPage1.INTRODUCTION12.THEORY & OBJECTIVES...3.METHOD...4.RESULTS...5.DISCUSSION...6.FURTHER RESEARCH...7.REFERENCES...8.APPENDIX...1.INTRODUCTIONStudent name / student numberLaboratory Report: COEFFICIENT OF PERFORMANCE OF VAPOUR-COMPRESSION CYCLES2
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Cooling of buildings is one of the major factors which construction of building materials will have to consider [1]. To achieve the best vapor compression cycle should be able to achieve the best coefficient of performance during the cooling process. Better vapor compression cycle is able to indicate the effectiveness of the refrigerator systems. Refrigeration machines are always used in cooling of buildings [2]. These machines are able to employ vapors-compression cycles to achieve the cooling effect. A volatile fluid is mostly used to achieve the cooling effect. This fluid is able to change phase at low temperature in order to absorb heat and cool the loads. In addition, in order to achieve the cooling effect, the refrigerator is able to change the fluid pressure and achieve the temperature at which phase-change point. Two major key factors which are considered for the cooling effect is the energy supply to the cooling load and the size of the cooling load. The Coefficient of Performance (CoP) is defined as the ratio between these two quantities and thus able to measure the efficiency of the systems [3]. Therefore the evaporation and condensation temperatures will have a close relation with the CoP. This report will be able to investigate the relationship between CoP and evaporation/condensation temperatures at which the cycle operates [4]. Theoretically, any cooling system, refrigeration systems and condensers temperature are guided by the size and type of the system components and temperature required for cooling load and heat sink available. 2.THEORY & OBJECTIVE Refrigeration is defined as a process of heat removal from a region or state and substance inorder to maintain low temperature, by transferring the heat to another region. The heat transferon the refrigerator is based on the vapor compression cycles. The performance of the heatingand refrigerator systems is measured in terms of CoP [5]; which is expressed as follows;CoPR = {Desired output/ required input} = (cooling effect/work input) = QL/Wnet, inThe power input is depended on situations of the equipments. The power can be measured at different points and therefore this means that the CoP will depend on the location where the power is measured at. Under this experiment, different condenser designs with varying evaporator loadings are used to analyze the efficiency of CoP [6]. Most importantly, the CoP is depended on the evaporator cooling load, QL and the power input cycle to the system, W [9]. Student name / student numberLaboratory Report: COEFFICIENT OF PERFORMANCE OF VAPOUR-COMPRESSION CYCLES3
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