scholarly journals Exploratory Study of Combining Integrated Product and Services Offerings with Industrial Symbiosis in Order to Improve Excess Heat Utilization

Procedia CIRP ◽  
2015 ◽  
Vol 30 ◽  
pp. 167-172 ◽  
Author(s):  
Sofia Päivärinne ◽  
Mattias Lindahl
Keyword(s):  
Exploratory Study ◽  
Industrial Symbiosis ◽  
Excess Heat ◽  
Heat Utilization

scholarly journals The Effect of Excess Heat Utilization on the Production Cost of Cement

2021 ◽  
Vol 1 (2) ◽  
pp. 104-114
Author(s):  
Olayide R. Adetunji ◽  
Montfort C. Ogbuokiri ◽  
Olawale U. Dairo ◽  
Olanrewaju B. Olatunde ◽  
Iliyas K. Okediran
Keyword(s):  
Production Cost ◽  
Light Emitting Diode ◽  
Cement Industry ◽  
Cement Plant ◽  
Steam Turbines ◽  
Light Emitting ◽  
Excess Heat ◽  
Heat Utilization ◽  
Annual Capacity ◽  
Induced Draft Fan

Industrial excess heat is a largely untapped resource that has the potential for external use that would be beneficial to the cement industry. Therefore, this work studied the excess heat utilization for the optimization of production cost in a cement plant within a period of three years. The study of plant layout in the selected plant in Nigeria (Ewekoro II Cement Plant of 200 tonnes/hour) was carried out to identify areas where excess heat is generated. The temperature and static pressure of precalciner, kiln, and cyclone were taken using a temperature probe, pitot tube, digital manometer, and light-emitting diode temperature reader. These parameters were used to obtain the mass flow rate and heat transfer needed for the heat energy analysis of the system. The kiln was maintained at constant tonnage per hour through a clinker truck weighed using the weighbridge. The result showed that the heat generated from the kiln was 577,640,260 MJ/hr. through excess air draft of 780,000 m3/hr (89.4%) at 250 °C and induced draft fan of 900,000 m3/hr at 350 °C. The result showed that excess heat can be utilized in pre-heater and air quenched cooler boilers, steam turbines and auxiliaries, and generators. The total estimated heat that could be saved amounted to 344,648,250 MJ with a total annual capacity of 2.25 million tonnes of cement. A saving of over two billion dollars could be achieved in production cost per year.

A hospital clerkship program for dental students: an exploratory study

1969 ◽  
Vol 33 (2) ◽  
pp. 224-229
Author(s):  
EA Stuebner ◽  
RP Johnson
Keyword(s):  
Exploratory Study ◽  
Dental Students

Classifying Disfluencies in Preschool- and School-Age Spanish–English Bilinguals Who Do Not Stutter: An Exploratory Study

2020 ◽  
Vol 5 (1) ◽  
pp. 119-130
Author(s):  
Raúl Rojas ◽  
Farzan Irani
Keyword(s):  
Exploratory Study ◽  
Evidence Base ◽  
Medium Effect ◽  
Bilingual Children ◽  
Linear Regression Models ◽  
Cross Sectional ◽  
Total Percentage ◽  
Narrative Production ◽  
Language Measures ◽  
Mean Length Of Utterance

Purpose This exploratory study examined the language skills and the type and frequency of disfluencies in the spoken narrative production of Spanish–English bilingual children who do not stutter. Method A cross-sectional sample of 29 bilingual students (16 boys and 13 girls) enrolled in grades prekindergarten through Grade 4 produced a total of 58 narrative retell language samples in English and Spanish. Key outcome measures in each language included the percentage of normal (%ND) and stuttering-like (%SLD) disfluencies, percentage of words in mazes (%MzWds), number of total words, number of different words, and mean length of utterance in words. Results Cross-linguistic, pairwise comparisons revealed significant differences with medium effect sizes for %ND and %MzWds (both lower for English) as well as for number of different words (lower for Spanish). On average, the total percentage of mazed words was higher than 10% in both languages, a pattern driven primarily by %ND; %SLDs were below 1% in both languages. Multiple linear regression models for %ND and %SLD in each language indicated that %MzWds was the primary predictor across languages beyond other language measures and demographic variables. Conclusions The findings extend the evidence base with regard to the frequency and type of disfluencies that can be expected in bilingual children who do not stutter in grades prekindergarten to Grade 4. The data indicate that %MzWds and %ND can similarly index the normal disfluencies of bilingual children during narrative production. The potential clinical implications of the findings from this study are discussed.

Disfluency: An Exploratory Study of the Effects of Subcortical Stroke

2009 ◽  
Vol 36 (Fall) ◽  
pp. 149-156
Author(s):  
Charles Ellis ◽  
Maude Rittman
Keyword(s):  
Exploratory Study

An exploratory study from the patients' perspective of living with allergies

1997 ◽  
Vol 6 (5) ◽  
pp. 371-377
Author(s):  
Wendy Zernike ◽  
Tracie Corish ◽  
Sylvia Henderson
Keyword(s):  
Exploratory Study ◽  
Patients Perspective
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