二本毕业设计过程材料格式模板Word文档格式.docx

二本毕业设计过程材料格式模板Word文档格式.docx

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过程材料

题目：

天津华星酒店空调系统设计

姓　　名：

　　　　刘岩　　　　　

学院：

建筑工程学院

专　　业：

　　　建筑环境与设备工程　　　　

班　　级：

　　　　　建环101　　　　

学号：

201051645133

指导教师：

　　　　　江清阳　　　

导师学科：

导师职称：

教务处制　　

年月日

嘉兴学院毕业论文（设计）任务书

请同学们从毕业设计平台自行下载。

嘉兴学院外文文献翻译译文

　　天津华星酒店空调系统设计　　　　

专业班级：

建环101学生姓名：

　刘岩学号201051645133　　

一、外文原文1

1.Introduction

Energyconservationmeasure（ECM）isapracticeconductedinabuildingforthepurposeofreducingenergyconsumptioncausedbytheelectricalsystemssuchaslighting,heating,ventilationandairconditioningsystems.ECMisalsoawaytodetermineseveralpotentialalternativesforreducingenergyconsumptionanddecidingwhichalternativesmustbeimplemented.Energyconservationmustbedonewithoutsacrificingthecomfortoftheoccupantsinthebuilding.ECMshavebeenimplementedwidelyinbuildingsforenergysavinginitiativesintherecentyears.ECMscanbecategorizedbasedontheamountoffinancialinvestmentinvolvedinitsimplementations:

zeroinvestment,minorinvestmentandmajorinvestment.TherearetwobasicwaysofconservingenergyusingtheECMapproach.Thefirstmethodinvolvesphysicalalterationsoradditionstotheexistingsysteminthebuildingsuchascompletesystemreplacementsorinstallationofsensorsforlightingsystem,andthesecondmethodrequiresonlychangestotheoperationofthesystemsuchasscheduledlightingsorairconditioningoperatingtimes.

Sincetheuseofheating,ventilationandairconditioning（HVAC）systemaccountsforoneofthehighestpercentageofenergyuseinabuilding,ECMforHVACsystemsisapopularresearchtopicandhasattractedmanybuildingownersintheirefforttominimizethebuildings'

energyconsumption.ECMsonHVACsystemsalsoresultinthehighestenergysavingpotentialcomparedtoitsapplicationontheotherelectricalsystemsinabuilding.HVAC'

sECMscaneitherbeazeroinvestmentECMby,forinstance,changingthethermostattemperaturesetting;

oramajorinvestmentECMby,forexample,replacingtheexistingHVACsystemwithamoreenergy-efficientHVACsystem.

Intherecentyears,ECMsfocusingonHVACoperationschedulingbecomespopularbecauseoftheconsiderablyhighenergysavingpotentialthatitcanprovide.Someoftheoperationsschedulingtechniquesarediscussedin.Intheseproposedtechniques,theschedulingprocessesarequitesimpleandaremainlybasedontheoccupancyofthebuilding.Forexample,ifthebuildingisoccupied,thesetpointtemperatureoftheair-conditioningsystemwillbereduced,andduringunoccupiedtime,thesetpointwillbechangedtohighertemperatures.Thesesetpointtemperaturesmustalsobewithinthethermalcomfortrangesoasnottosacrificethecomfortofthebuilding'

soccupantsintheefforttoreducetheenergyconsumption.Also,inmostofthepreviouslyusedHVACschedulingapproaches,theHVACisoperatedfor24hdailywiththenightsetbacktechnique,whichisanapproachtoreduceenergyusagebyincreasingthesetpointtemperatureduringunoccupiedhours.This,ingeneral,doesnotmaximizetheenergysavingpotentialoftheairconditioningsystem.Therefore,agreatnumbersofschedulingtechniqueshavebeenproposedanddevelopedforthepurposeofmaximizingtheenergysavingpotentialwhilepreservingthecomfortoftheoccupantsinthebuildingorthespace.

Inthispaper,severalmethodsofschedulingtheHVACoperationarediscussed.ThemethodsaredividedintoseveralclassesanddiscussedinSection2ofthispaperwiththeillustrationofthetemperaturesetpointthroughoutthedayaccordingtotherelatedsources.Firstly,thesimplemethodsofHVACschedulingareexplained.Thisisfollowedbythediscussionontheconventionalschedulingtechniquesthatprimarilyaimtoreducethepeakenergydemand.AnotherclassofHVACschedulingmethodsdiscussedinSection2istheadvancedschedulingmethod.Thediscussionsmainlyfocusonhoweachschedulingtechniqueworks,whatmakesitdifferentfromotherschedulingtechniques,theenergysavingpotentialaswellasitslimitationsandpossiblemodificationsthatcanbemade.Section3willdiscussabouttheuseofcomfortindex,PredictedMeanVote（PMV）anditsrelationshipwithoutdoortemperature.ThepaperendswithasummaryandconclusionsthatcanbedrawnfromalltheschedulingtechniquesexplainedthatalsoincludessomerecommendationsfordevelopingnewHVACschedulingtechniques.

2.TypesofHVACscheduling

Inthispaper,theHVACschedulingtechniquesaredividedintothreeclasses;

basictechniques,conventionaltechniquesandadvancedtechniques.Thebasicschedulingtechniqueinvolvesonlythemanipulationofthe‘ON’and‘OFF’statesoftheHVACsystem.Meanwhile,intheconventionalschedulingtechnique,thesetpointtemperaturesoftheHVACsystemaremanipulat