7/28/2019 Chinese Saving-Stove News 9-1987 FWD China Focal Point

1/5

Chinese Saving - St ov e N ew sSeptember 1987l'WD Ch i na Foc a l Po i n t(China Ce n t r e o f Rura l EnergyResearch a n d Training) ,The Spread o f Firewood A Co al E ff i c i e n t St ove now Comes I n t oNew Sta ge -- Ind us tr i al Pr oduc tio n

In spr ead o f f i rewood & coal e f f i c i en t s t oves i n C hina , u s u a l l y s t oves a r ebu i l t on t he spot by sk i l l e d t echni c i ans , w h i c h r a i se s h i ghe r requ ir emen tsfor t h e i r t ec hn ic al s k i l l s . O n t h e o th er hand, s t o v e s b u i l t i n t h i s w a yneed r e g u l a r main tenance. A l l t hese a f fec t ed th e s tove q ua l i t y and s loweddown the spread.However, i n r e ce n t yea rs , sp r e ad o f f i rew ood & coa l e f f i c i en t s toves i nChina has come In t o a new stage . The stand ard and un iv er al sto ve s a re be ingcommerc ia lly produced. Th is a ls o serves preparat ions f o r a n at iona l f a i r o fr ur al e n e r g y p r o d u c t s a s w e ll a s f or ma ti on o f n a t i o n a l s t a n d a r d s . T h eBureau o f R u r a l E n e r g y & Environmental P r o t e c t i o n u n d e r M i n i s t r y o fAgr i cu ltu re , An im a l Husbandry a n d F ishery he ld a na t iona l confe rence o nindust r ia lly -made f i rewood & coa l e f f i c i e n t s tov es i n th e autumn of 1986 inZhengzhou. China.Af ter s t r i c t t e s t i n g and c om pe ti ti on , 5 7 t yp es o f s to ve s f r om d i f f e r e n tplaces o f C h i n a won f i r s t , s e c o n d and t h i r d p r i z es a t t h i s c o nf e re n ce .Appraisals ar e al so made at t h e conference on improvement o f kang combi nedstoves t h a t a r e w i d e l y u s e d i n c ol d areas o f n o r t h r u r a l C h i n a . 1 9outstanding types won the pr iz es .

f, 7-4 /c

Stove Improvement Techn ique Comes i n t o Pro duc tio n F i e l d Rap idl yThe improvement o f s toves and f i r ewood sav ing f i r s t l y show th e i r e f f ec t i nr ur al l i f e . A f t e r t h a t , s c i e n t i f i c r es ea rc h and s t u d i e s conducted i n Chinamade t h i s technique soon come in t o produ ct ion f i e l d , w h i c h now has been amajor tendency i n stov e improvement i n ru ra l Ch ina.Yingshan Coun ty, Hu be i P rov ince , i s famous f o r i t s tea . A f t e r the s tud ieson ene rgy e f f i c i e n t t ea p rocess ing s toves a r e f i n i shed , 2 7 2 ou t o f 320 t eafarms a t t h e county have employed the energy-saving techn oio y- i n t h e i r tea_processing i n 1986, which co ns t i tu te s 84% of them. The f i rewo od consumptionis lowered b y 40%, m o r e tha n RMB Y100,000 prod uct ion co st i s saved and 700h ec ta rs o f l a n d c an b e c l os e d f o r a f f o r e s t a t i o n . A t p r e s e n t . t e c h n o l og i c a l

7/28/2019 Chinese Saving-Stove News 9-1987 FWD China Focal Point

2/5

renovation I s car r i ed o u t o n snai l b r Ickk lina which I s a b i g energyconsumer in the county.XInxian County, Henan Province, i s a l s o a tea producing ar ea . A f t e rImprovement on i t s te a processing stoves at t ea fa re s. 46 % o r firewood i ssaved. and 'mount o f dri ed te a production per hour I s increased by 1 /3 . Thetechnical renovation on old-s tyled bric kkli ns resu lts In firewood saving by50%, t i m e saving by 28% and labour saving by 55%. Aft er a l l 424 brI ckkl insof old s tyle of t he county are renovated. I n a year. 4 mill ion kg firewoodcan b e conserved. A type of stove especially f or beancurd mi ll s, p o t a t o -starch noodle mil ls and oi l pressing mill s I s developed in the cou nt y. I tIs capable of saving 50% of f irewood. When stoves now used for those s i l l sfinish t he ir technical improveaent up t o th is standard, th e county can saveanother 290.000 kg firewood In a yea r.For l i n ' a n Co un ty o f Z h ej i a ng Pr ov in ce . 4 5 0 f i r ew o od - ef f I ci e nt t e aprocessing stov es h ave been I n use. T h e 6CGS-86 model dr yi ng st ov edeveloped b y th e county can save 50% of firewood I n comparison wit h stovesof o l d on e. T h i s Improvement alone can save 3500 tons o f fi rew ood an ddecrease RH Y300 .000 o f p roduct ion cost f o r the county In a y ea r .

Compulsory Spread of F irewood (c oa l ) Ef f ic ie nt Stoves i n Urban Areaby Shaowu Mun ic ip al it yTo s p r e a d e ne r gy - sa v in g s t o v e s i n c i t i e s and t o w n s I n v o l v e s d i f f e r e n taspects a n d c e r t a i n d i f f i c u l t i e s emerge. F o r t h a t r ea so n, t h e m u n i c i p a lgovernment o f Shaowu has organized a lea ding te as consi st in g members f r o md i f f e r e n t d e pa r tm e nt s t o b e i n c ha r ge o f t h e p o p u l a r i z a t i o n . A c c o r d i n g t othe - R e g u l a t i o n s f o r Sp re ad o f C i v i l F ir ew oo d E f f i c i e n t S t o v e s- J o i n t l yssued by the provincial commission of science A technology, commission ofp lanning and commission of economy, t he lea ding team re i t er at ed th at

I l. ad va nc ed e n e r g y - s a v i n g s t o v e s r ec om me nd at ed b y t h e p r o v i n c i a lgovernment sh ou ld be used in s tove des ign and construct ion i n ne wtown a pa rt me nt bu i l d i n gs s i n c e t h e l a t e o f 1 9 8 6 , o t h e r w i s edepartments i n v ol v e d i n q u a l i t y c h ec k s w i l l n o t a c c e p t t h ebu i ld ings; T h e backward s toves o f o l d s ty le shou ld be renovated i nturn t o speed up t he process o f improvement.

21 .From 1987 , p r ov i nc i a l government w i l l i s sue quotas s tep by s te p f o rspr ead o f e n e rg y -s a v in g s t o v e s, a s w e l l a s q u o t as f o r c o a l s a v i n g .To a r e a s w h e r e t he s pr ea d i s n o t s a t i s f a c t o r y , q u o t a s f o r c i v i lenergy r e s o u r c e s m a r k e t w i l l b e de du ct ed t o e n e r g y c o n s e r v a t i o nquotas for purpose of compulsory spread;

3 1. 10 g u a ra n t e e t h e q u a l i t y a s w el l a s q u a n t i t y o f e n e rg y - s av i n gstoves i n s p r e a d , s t o v e s c an o nl y b e c o n st r u c te d b y q u a l i f i e dt ec hn ic ia ns w h o h a v e b ee n t r a i n e d by pr o v i n c i a l a n d p r e f e c t u r a lt ra in i ng c o u r s e s . S t o v e s s h o ul d b e e xa mi ne d a t r an do m b yorganizat ions for monitor ing energy consumption and for spread. Theu n qu a l if i e d s t o v e s s h ou l d b e r e b u i l t f r e e o f c h a r g e .

The f o c u s o f t h e Shaowu M u n i c i p a l i t y i s t o c o n s t r uc t e ne r g y- s a v in g s t o v e sin n e w l y - b u l i t a p a r tm e n t b u i l d i n gs i n t h e to wn . T h e b u i l d i n g s t h a t h a v ebeen e x am i ne d , y e t w i t h o u t c o a l ( f i r e w oo d ) e f f i c i e n t s t o v es s h o u l d a l l

c on st ru ct e n e r g y - s a v i n g s t ov e s : t h e u n q u a l i f i ed s t o ve s s h o u l d r e n o v a t e

7/28/2019 Chinese Saving-Stove News 9-1987 FWD China Focal Point

3/5

a ga in ; t o t h e b u i l d i n g s t h a t h a v e n o t b ee n e xa mi ne d, i t c a n b e ch ec ke d a n daccepted o n l y a f t e r n ew e ne r gy - sa v in g s t ov e s a r e c o n s tr u c t ed i n s i d e . T oi n s t i t u t i o n s an d o r g a n i z a t i o n s t h a t d o n o t s p r e ad s t o v e s o f ne w t y p e s , t h em uni cipa l c o n s t r u c t i o n co mm it te e w i l l r e f u s e t o a cc ep t t h e i r n e w l y - b u i l tb u i l d in g s a nd t h e m un i ci p al f u e l s u p p l y c o r po r a t i o n w i l l s t o p c o a l s u p p l y .A l l t h e s e m e a s ur e s a r e ta k e n f o r p ur po se o f c om pu ls or y s p re a d. T h e h e a te f f i c i e nc y o f c o a l s t ov e s i n sp r ea d s ho ul d a l l r e a c h 5 0 % , f o r f i r e w o o ds to ve s, i t s h o u l d r e a ch 35%. T h e y a l l s h o u l d b e e as y t o u s e an d h av e g oo dp er fo rm an ce a s w e l l a s l o w p r i c e s .

E ner gy C o n s e r v a t i o n O f f i c e o fShaowu M u n i c i p a l i t y , F u j i a n P r o v i n c e

What d o e s i t m e an - -p eo pl e l i k e s t o v e s o f o l d s t y l e i n s t e a d o f n e wModel Y u e y a n g I I s t o v e a nd Model D af en g s t o v e h ad b e e n p o p u l a r i z e d i nL uj ia ng C ou nt y, A n h u i P r o v i nc e s i n c e 1 98 4. H o w e v e r , t h e l o s s o v e r-w e i g h t st he g a i n . T h e g ov er nm en t s p e n t m on ey, t h e s t o v e s a r e d i s l i k e d b y p e o p l e . I ntwo m o n t h s , n e w s t o v e s we re r ep la ce d b y o l d on es . I t s ho ws t h a t l o c a lcombust ion p r a c t i c e a s w e l l a s l i v i n g s t y l e s h o u l d b e p u t i n t oc o ns i de r at i on i n s p r ea d o f f i r e w o o d - e f f i c i e n t s t o v e s . N e w t y p e s o f s t o v e sd ev el op ed i n o t h e r a r e a s s h o u ld n o t b e c o m p l et e l y c op i e d i n L u j i a n g C ou nt yf or s h ee r p u r s u i t o f h i g h th er m al e f f i c i e n c y :Farmers o f L u j i a n g C ou nt y a l wa y s p r e f e r s to v e s w i t h f r o n t d r a f t i n g . T h e yr e fu s e t o a c c ep t t h e s t o v e s w i t h r e a r d r a f t i n g s t r u c t u r e n o m a t t e r ho w m uchf i re wo od t h e y c a n c o ns e r v e e v en t h e s p r ea d o f s t o v e s I s f o r c e d .S t a r t i n g f r o m 1 9 86 , w e i mp ro ve o n l y t h e s t r u c t u r e o f c om bu st io n c h a m be r sand k e e p t h e o u t l o o k un ch an ge d. T h e c h a r a ct e r o f f r o n t d r a f t i n g a nd a s hfenc ing w a l l s r e m a i n i n n e w s to ve s. W e ' d r a t h e r l i k e t o h a v e s o m econcess ions i n t h e r m a l e f f i c i e n c y t h a n t o b e c o m p l e t e l y r e j e c t e d b yf ar me rs . T h e r e s u l t i s s a t i s f a c t o r y .Judging f r o m t h e s e p r a c t i ce , w e b e l i e v e t ha t c l o s e a t s h o u l d h ep ai d t o t h e f o l l o w i n g a s p ec t s .1.The t y p e s o f f i r e w o o d - e f f i c i e n t s t ov e s s ho ul d b e a p p l i c ab l e t o l o c a ls u r r o u n d i n g s .

S p e c i f i c i n v e s t i g a t i o n s h o u l d b e made o n l o c a l t y p e s o f s t o v e s , c o m p o s i t i o no f l o c a l f u e l s , a n d l o c a l l i v i n g cus toms . A l l t h es e sh ou ld n o t b e f i g u r e dout b y j u s t s i t t i n g i d l e l y a t o f f i c e .

In r e n o v a t i o n , w e p u t i t i n t o o ur c on s i de ra t i on t h a t l o c a l p e o p l e u s em a i n-f yr ic eSTrawasfuelfortheirst

s p e c i a l l y em ph as iz ed . I n s t e a d , t h e f l a m e d i s t a n c e i s p r o l o n ge d t o a bo ut 2 0cm. L o c a l p e o p l e l i k e t o h e a t f oo d and p i g f ee d w i t h r e s i d u a l h e a t .C o ns i de r i ng t h i s c u s to m , w e e n la r g e d f i r e w o o d - i n l e t d o o r , a n d ch an ge d f r o n td r a f t i n g i n t o r e a r d r a f t i n g . T h e Model L u j i a n g Z I F i r e w o o d - E f f i c i e n t S t o v ei n s p r e a d i s w a r m l y w el c om ed b y p e o p l e .

2 . F i r e w o o d- e f f i c i e n t s t o v e s s h o u l d b e c on s t r u c t ed b y s t a n d a r d i z e d p a r t s .We w e r e s h o r t o f t e c h n i c a l f o r c e when p e o p l e s t r o n g l y a s k e d f o r r e n o v a t i o no f o l d s t o v es . T h e r e f o r e , c o m b u s t i o n c ha mb er, s t o v e d oo r , Li i im n ey, s t o v ef ac e, v e n t i l a t i o n o p e ni n g a r e a l l p r e f a b r i c a t e d ac c o r di n g 1 0 s t a n d a r d i z e d

7/28/2019 Chinese Saving-Stove News 9-1987 FWD China Focal Point

4/5

model w i t h m o u l d s . I n t h i s w a y , p r o c e s s c a n b e s p e d u p b y 5 0% . O n t h e o t h e rhand, i t c a n s av e l a b o u r , m a t e r i a l s a nd i s c o n ve ni e nt t o p e op l e. O rd i n a ryb r i c k - l a y e r s c a n a s se m bl e i t .

3 .Types o f g r a t e s o f f i r e w o o d - e f f i c i e n t s t o v es s ho u l d m a t c h d i v e r s i f i e df u e l s .The d en se g r a t e i s o n l y s u i t a b l e t o h ar d f i r e w oo d , r i c e h us k a nd c o a l . I tis n o t s u i t a b l e f o r g r as s a nd c r o p s t a l k s : i f t h e g r a te i s r a t h e r s pa rc e ,i t w i l l n o t b e s u i t a b l e f o r h a r d f u e l s e i t h e r . F o r t h a t r e as o n, we d es ig ne da k i n d o f g r a t e ( 2 4 cm x 1 8 cm I w i t h d e ns e g r a t e s on on e e nd a n d s p a r c eg ra te s o n t h e o t h e r. I t c a n s u i t e v e r y k i n d o f f u e l b y j u s t r e v e r s in g t h eg r a t e . T h e c ha n ge c a n b e m ad e v e r y e a s i l y .4. T h e a p p l i c a t i o n o f f i r e w o o d s a v ed s ho u l d n o t b e n e g l e c t e d .Large a m o u n t o f f i r e w o o d i s s av ed b y s pr e a d i ng f i r e w o o d - e f f i c i e n t s t o v e s ,u t i l i z i n g e ne rg y- co ns er va t i on wa te r ta n ks , a n d b i og a s t o s u b s t i t u t e c i v i lf ue ls . I f t h e f u e l s sa ve d c an no t f i n d t h e i r way o f a p p l i c a t i o n a nd f a i l t oincrease t h e i r v a l u e . F a r m e r s w i l l b e n o l on ge r e n t h u s i a s t i c w i t h t h ec o ns t ru c ti o n o f ne w s t o v es . A s t h e y p u t i t : I t i s n o us e t o sa v e f i r e wo o d ,they a l l r o t d o w n .-The m a i n a p p l i c a t i o n f o r f i re w oo d c on se rv ed c o u ld be r aw m a t e r i a l s f o rpaper m i l l s , b r i c k y a r d , g r a s s p ro du ct p ro ce ss in g an d c u l t u r e o f e d i b l ef u n g i .

News in B r ie f

By Zhang YungaoB io ga s O f f i c e o f L u j i a n g C o u nt yAnhu i P rov ince

.A o n - t h e - s p o t m e e t i n g h e l d i n Ta ng yu an C o un t y, H e i l o n g j i a n g P r o v i n c er equ es ted t h e w ho le p r o v in c e , p i l o t c o u n t i e s i n p a r t i c u l a r , t o m a t e r i a l i z es t a n d a r di z e d p r o d u c t i o n o f c o m b u s t i o n c ha m be r o f s t o v e b y 1 9 8 8 .

.A s mo ke le ss , c o a l - e f f i c i e n t , e a s y o p er a t i n g an d m ai n t a i n i ng , s t e p - g r a t et ype d s t o v e d ev el op ed b y J i a j i a n g C o u nt y, S i c h u a n P r o v i n c e , h a s i n t e r e s t e denv i ronmenta l p r o t e c t i o n d e pa r tm e nt s . M a n y b i g c i t i e s r e q ue s t e d t h ei n t r od u c t i on o f t h e t e c h n ol o g y.

.The r u r a l h o u s e h o l d s u s i n g new t y p e s t o v es h a s c o n s t i t u t e d 8 4 . 5 % o ft o t a l r u r a l h o u se h o l ds i n S h u f u C o u n t y, a t w e s t e n d o f Ta sh la ma ga n D e s e r t .The q u a l i f i c a t i o n r a t e o f n e w s t o v e s r e a c he d 9 5% .

.The t h e r m a l e f f i c i e n c y o f a c a s t - i r o n c o m b us t io n c ha mb er m a ss - p r o du c e dby W u h a n M u n i c i p a l i t y h a s c om e t o m o r e t h a n 30 %.- T h e c o m b u s t i o n- c h a m b e r ,i n cl u di n g a c ce s sa r ie s , s e l l s f o r HMB Y I 3 . I t c a n b e as se mbl ed i n a bo ut a nhour a nd i t i s s u i t - ab l e f o r v a r i o u s k i n d s o f f u e l s .

.The g ov er nm en t o f Yi ng sh an C ou nt y, H u b e i P r o v i n c e , s t i p u l a t e s t h a tf i r ew oo d -e ff ic ie nt s t o v e s s h o u l d h e b u i l t a l o n g w i t h n e w a p a r t m e n tb u i l d i n g s. Co m hu s ti o n- c h am h er w a t e r h e a t e r s h av e b ee n p o p u l a r i z e d i n t h ewhole c ou n t y. T h e f i r e w o o d - e f f i c i e n t s t o v e s w i t h w a t e r h e a t e r s c a n c o ns e rv ea no th er 1 / 3 f i r e w o o d i n c o m pa r i so n w i t h ne w s t o v e s w i t h o u t t h e h e a t e r .

7/28/2019 Chinese Saving-Stove News 9-1987 FWD China Focal Point

5/5

.The Thermal Engineering Department of the Chinese University of Scienceand Te ch no lo gy r a n t r a i n i n g c o u r s e s f o r k e y t e c h n i c i a n s en ga ge d I nf i rewood-ef fi c ient s t oves, wh ich upgraded t he i r theor e t i ca l le ve l .

.1560 hectars o f h i l l s i de s have been c losed i n th ree years i n i t s e f f o r tsof a f f o r e s t a t i o n b y s p r e a d i n g f i r e wo o d - e f f i c i e n t s t o v e s a t Xu an ch en gDi st ri ct , ChangdIng County, Fu j i an Province.