带跟踪系统的太阳能加热装置促进沼气生产的研究.pdf

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1、第27卷第6期2562011年6月农业工程学报TransactionsoftheCSAE、，01．27No．6Jun．2011SolarwaterheatingmodelwithsuntrackingsystemforincreasingbiogasproductionHassaneinAM，ZhangDuo，QiuLing※(NorthwestAgricultureandForestryUniversity,Shaanxi，Yangling712100)Abstract：Thisstudyfocusesonusingsolarenergyto

2、enhancebiogasproduction．Inthisresearchonedigesterunderthegroundwasusedasstudyobject，whichislocatedatRunzhenmiddleschoolinChunhuacounty,Shannxiprovince．anditsvolumeis100m’．Therawmaterialwashumanmanure，whichwasfedtothesystemeveryday．TheaveragetemperatureinJanuarywas一1．60C。thel

3、owesttemperaturewas—l50CandtheaverageofsolarradiationinRunzhenareawas4．5kwh／m2．Becauseinthewinterthebiogasyieldwithoutheatingsystemwillalmoststop，theobjectiveofthisstudyistoinvestigatethefeasibilityofusingsolarenergyforincreasingbiogasproduction．nlesystemincludesa120m2greenh

4、ouseand8flatsolarthermotubeheaterswithtotalsurfaceareaof20m2toreachoptimumtemperature．Resultsshowthatinthewinterthesolarsvstemcallincreasebiogasyieldby12m’perdaywithcost1．5Yuan／m3，allthegasyieldcanbeusedinschoolkitchenbymedesignedpipeforcooking．Inaddition，theparabolictroughs

5、olarconcentrator(PTC)withtrackingsystemwasdevelopedfortheheatingsystem，whichisexpectedforhighergasproductionperdaywithoutdailyadditionalcost．Keywords：biogas，solarenergy,trackingsystem，PTC，economicanalysis．doi．-10．3969／j．issn．1002—6819．2011．05．000CLCnumber：TK519，TQ221．1+1Docu

6、mentcode：AArticleID：1002—6819(2011、一06—0256—06HassaneinAM，ZhangDuo，QiuLing．Solarwaterheatingmodelwithsuntrackingsystemforincreasingbiogasproduction[J]TransactionsoftheCSAE，201l，27(6)：256--261．(inEnglishwithChineseabstract)HassaneinA．A．M．，张铎，邱凌．带跟踪系统的太阳能加热装置促进沼气生产的研究【J】．农业工程学

7、报，2011，27(6)：256——261．0IntroductionAsoneofmethodstoproducecleanenergyfrombiomassandorganicmatter,anaerobicdigestisfascinatingpeople’sattentionbecauseitsenergyandenvironmentalbenefitsL“．Accordingtodifferenttemperatureofanaerobicdigestcanbedividedintofourtypes：normaldigestiont

8、emperature(10—270C)low-mesophilicdigest(30-J：30C)mesophilicdigest(35士30C)an