Solar chimneys are with or without heat storage widely used for improving the ventilation and thermal comfort in buildings. The energy, exergy, economic analysis of solar chimney and the CO2 mitigations (EEEC) are evaluated in this communication. The improved solar chimney with MS plate and MS box was designed and developed by the author in the CBRI Roorkee. The observations of typical day of December have been taken for the presentation and the whole month data have been used to evaluate the EEEC parameters. The maximum energy efficiency has been observed by 26.68% during 12 hours of the typical day, and at the same time the exergy efficiency has obtained 3.69%. Approximately 2285kWh energy can be saved during a year through solar chimneys. The payback period of an improved solar chimney with MS plate (SCWMSP) is estimated to be less than one year and with MS box (SCWMSB)) it is likely to be one year. CO2 can also be saved with the energy conservation parameter observed saving of 4.37 ton / year CO2 by SCWMSP, on the other hand if SCWMSB have implemented than CO2 would be save by 5.51 ton/year.
{"title":"Experimental Studies on Solar Chimney for Building Space Heating and Ventilation Enhancement: Energy, Exergy and Economic Analysis","authors":"Shiv Lal","doi":"10.54060/jmce.v2i2.21","DOIUrl":"https://doi.org/10.54060/jmce.v2i2.21","url":null,"abstract":"Solar chimneys are with or without heat storage widely used for improving the ventilation and thermal comfort in buildings. The energy, exergy, economic analysis of solar chimney and the CO2 mitigations (EEEC) are evaluated in this communication. The improved solar chimney with MS plate and MS box was designed and developed by the author in the CBRI Roorkee. The observations of typical day of December have been taken for the presentation and the whole month data have been used to evaluate the EEEC parameters. The maximum energy efficiency has been observed by 26.68% during 12 hours of the typical day, and at the same time the exergy efficiency has obtained 3.69%. Approximately 2285kWh energy can be saved during a year through solar chimneys. The payback period of an improved solar chimney with MS plate (SCWMSP) is estimated to be less than one year and with MS box (SCWMSB)) it is likely to be one year. CO2 can also be saved with the energy conservation parameter observed saving of 4.37 ton / year CO2 by SCWMSP, on the other hand if SCWMSB have implemented than CO2 would be save by 5.51 ton/year.","PeriodicalId":142002,"journal":{"name":"Journal of Mechanical and Construction Engineering (JMCE)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122353520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Natural hazards are extreme weather and climate events that occur naturally in all parts of the world. Some regions are more vulnerable to certain hazards than others. Hazards become disasters when there is loss of people’s lives and properties. Typically, a natural hazard can be defined as the probability of occurrence within a specified period of time and within a given area of potentially damaging phenomenon. In the present study an environmentally sensitive area suffering from natural hazards and degradation of landforms is selected. A detailed field investigation was conducted in the study area to find out the impact of processes causing environmental degradation. In the recent past these natural processes are rapidly increasing due to increasing phase of human activities; causing damage to life and property in the Eastern Ramganga basin specifically and the Himalayan region in general. In the study area Kwiti, La, Jhekala, Nachani, Tejam, Dor, Bansbagad, Ruisapata, Simtola and many more villages were severally affected due to the natural hazards in the past few years. Eastern Ramganga catchment is highly vulnerable to the risk of several kinds of natural hazards. Disasters in the region cause great loss to life and property and pose serious threat to the process of development which has impact on economic and social wellbeing of the people living here. Thus, the impacts of natural hazards caused by different geomorphic processes including extreme events are multidimensional affecting environmental, social and economic systems.
{"title":"Natural Hazards and Degradation of Landforms in Eastern Ramganga Basin of Kumaun Himalaya","authors":"Kumaun Himalaya","doi":"10.54060/jmce.v3i1.31","DOIUrl":"https://doi.org/10.54060/jmce.v3i1.31","url":null,"abstract":"Natural hazards are extreme weather and climate events that occur naturally in all parts of the world. Some regions are more vulnerable to certain hazards than others. Hazards become disasters when there is loss of people’s lives and properties. Typically, a natural hazard can be defined as the probability of occurrence within a specified period of time and within a given area of potentially damaging phenomenon. In the present study an environmentally sensitive area suffering from natural hazards and degradation of landforms is selected. A detailed field investigation was conducted in the study area to find out the impact of processes causing environmental degradation. In the recent past these natural processes are rapidly increasing due to increasing phase of human activities; causing damage to life and property in the Eastern Ramganga basin specifically and the Himalayan region in general. In the study area Kwiti, La, Jhekala, Nachani, Tejam, Dor, Bansbagad, Ruisapata, Simtola and many more villages were severally affected due to the natural hazards in the past few years. Eastern Ramganga catchment is highly vulnerable to the risk of several kinds of natural hazards. Disasters in the region cause great loss to life and property and pose serious threat to the process of development which has impact on economic and social wellbeing of the people living here. Thus, the impacts of natural hazards caused by different geomorphic processes including extreme events are multidimensional affecting environmental, social and economic systems.","PeriodicalId":142002,"journal":{"name":"Journal of Mechanical and Construction Engineering (JMCE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124171510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
For a long time, environmental protection of metallic components has become a pressing concern for the engineering and manufacturing industries. Coating technology has gained prominence to meet the needs of industrial demands. The coating is used to protect the metals and ensure the product's performance for a long time. Among other coating processes such as thermal spray, spark plasma sintering, and chemical vapour deposition, the electrodeposition process has proven to be the most cost effective and simple. The paper discusses the properties of various Nickel composite electrodeposited Protective coatings.
{"title":"A Comprehensive Analysis of the Properties of Electrodeposited Nickel Composite Coatings","authors":"A. A. Bhadre","doi":"10.54060/jmce.v3i1.24","DOIUrl":"https://doi.org/10.54060/jmce.v3i1.24","url":null,"abstract":"For a long time, environmental protection of metallic components has become a pressing concern for the engineering and manufacturing industries. Coating technology has gained prominence to meet the needs of industrial demands. The coating is used to protect the metals and ensure the product's performance for a long time. Among other coating processes such as thermal spray, spark plasma sintering, and chemical vapour deposition, the electrodeposition process has proven to be the most cost effective and simple. The paper discusses the properties of various Nickel composite electrodeposited Protective coatings.","PeriodicalId":142002,"journal":{"name":"Journal of Mechanical and Construction Engineering (JMCE)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127935551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Parametric studies of earth air tunnel heat exchanger (EATHE) using FLUENT 6.3 Computational fluid dynamics (CFD) software have been carried out in this paper. From the parametric analysis it is found that economic analysis of the system is required for the optimization of length, diameter, and depth of buried pipe. For a long earth air tunnel more than 60 m, soil thermal conductivity doesn’t give any significant effect. The higher mass flow rate also increases the overall energy conservation potential of the system, but it reduces thermal comfort. So, the mass flow rate also takes to optimize according to the requirement. This study is beneficial to the design and energy researchers of this field.
{"title":"Computational Studies of Earth Air Heat Exchanger using CFD: Parametric Analysis","authors":"Shiv Lal","doi":"10.54060/jmce.v3i1.29","DOIUrl":"https://doi.org/10.54060/jmce.v3i1.29","url":null,"abstract":"Parametric studies of earth air tunnel heat exchanger (EATHE) using FLUENT 6.3 Computational fluid dynamics (CFD) software have been carried out in this paper. From the parametric analysis it is found that economic analysis of the system is required for the optimization of length, diameter, and depth of buried pipe. For a long earth air tunnel more than 60 m, soil thermal conductivity doesn’t give any significant effect. The higher mass flow rate also increases the overall energy conservation potential of the system, but it reduces thermal comfort. So, the mass flow rate also takes to optimize according to the requirement. This study is beneficial to the design and energy researchers of this field.","PeriodicalId":142002,"journal":{"name":"Journal of Mechanical and Construction Engineering (JMCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129952512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The energy efficient building or green building design and certifications was started in the starting of twenty-first century because of whole world's people wants warmth, peace and prosperous house. Low energy consumption or energy efficiency is the main component of the green building. In this communication the author's communicating the significance of the possible methods of energy saving in building design by these methods peoples can improve the 'aura' of the building. By the application of these methods’ human can save lot of conventional energy and it say that it is sustainable approach for the building.
{"title":"Significance of Energy Efficient Component in the Buildings Design Towards the Green Footprint","authors":"Shiv Lal","doi":"10.54060/jmce.v2i1.17","DOIUrl":"https://doi.org/10.54060/jmce.v2i1.17","url":null,"abstract":"The energy efficient building or green building design and certifications was started in the starting of twenty-first century because of whole world's people wants warmth, peace and prosperous house. Low energy consumption or energy efficiency is the main component of the green building. In this communication the author's communicating the significance of the possible methods of energy saving in building design by these methods peoples can improve the 'aura' of the building. By the application of these methods’ human can save lot of conventional energy and it say that it is sustainable approach for the building.","PeriodicalId":142002,"journal":{"name":"Journal of Mechanical and Construction Engineering (JMCE)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114608897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this article, we optimize the performance of a solar air heater (SAH) using two designs and computational fluid dynamics (CFD) analysis in this article. With the help of ANSYS fluent, two designs are considered to investigate the effect of different rib heights (e = 1, 1.2, 1.4, 1.6, and 1.8) and duct depths (h = 16, 18, 20, 22, and 24). The effects of different parameters such as velocity, temperature, turbulence kinetic energy, and turbulence energy are compared to optimize the performance of designs 2 and 3. It is noticed that except temperature, all other parameters are on the lower side for design 2 as compared to design 3, due to improper air mixing in design 2. The authors presented the optimized design 3 with rib height e = 1.8 and depth of duct h = 16 after consideration of all the parameters (temperature, velocity, turbulence kinetic energy, and turbulence intensity) at various rib heights and depths of the duct. These numerical results will serve as a benchmark for future research to improve the efficacy of solar air heaters.
{"title":"Research Article A Parametric Study to Improve the Heat Transfer of Solar Air Heater Through CFD Analysis","authors":"Emarti Kumari","doi":"10.54060/jmce.v2i2.22","DOIUrl":"https://doi.org/10.54060/jmce.v2i2.22","url":null,"abstract":"In this article, we optimize the performance of a solar air heater (SAH) using two designs and computational fluid dynamics (CFD) analysis in this article. With the help of ANSYS fluent, two designs are considered to investigate the effect of different rib heights (e = 1, 1.2, 1.4, 1.6, and 1.8) and duct depths (h = 16, 18, 20, 22, and 24). The effects of different parameters such as velocity, temperature, turbulence kinetic energy, and turbulence energy are compared to optimize the performance of designs 2 and 3. It is noticed that except temperature, all other parameters are on the lower side for design 2 as compared to design 3, due to improper air mixing in design 2. The authors presented the optimized design 3 with rib height e = 1.8 and depth of duct h = 16 after consideration of all the parameters (temperature, velocity, turbulence kinetic energy, and turbulence intensity) at various rib heights and depths of the duct. These numerical results will serve as a benchmark for future research to improve the efficacy of solar air heaters.","PeriodicalId":142002,"journal":{"name":"Journal of Mechanical and Construction Engineering (JMCE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128649796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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