Pub Date : 2016-12-01DOI: 10.1109/ICECTE.2016.7879617
Md. Burhan Uddin, J. Uddin, Razia Sultana, S. Islam
An adaptive algorithm for selection of Intrinsic Mode Functions (IMF) of Empirical Mode Decomposition (EMD) is a time demand in the field of signal processing. This paper presents a new model of an effective algorithm for the adaptive selection of IMFs for the EMD. Our proposed model suggests the decomposition of an input signal using EMD, and the resultant IMFs are classified into two categories the relevant noise free IMFs and the irrelevant noise dominant IMFs using a trained Support Vector Machine (SVM). The Pearson Correlation Coefficient (PCC) is used for the supervised training of SVM. Noise dominant IMFs are then de-noised using the Savitzky-Golay filter. The signal is reconstructed using both noise free and de-noised IMFs. Our proposed model makes the selection process of IMFs adaptive and it achieves high Signal to Noise Ratio (SNR) while the Percentage of RMS Difference (PRD) and Max Error values are low. Experimental result attained up to 41.79% SNR value, PRD and Max Error value reduced to 0.814% and 0.081%, respectively compared to other models.
{"title":"A new machine learning approach to select adaptive IMFs of EMD","authors":"Md. Burhan Uddin, J. Uddin, Razia Sultana, S. Islam","doi":"10.1109/ICECTE.2016.7879617","DOIUrl":"https://doi.org/10.1109/ICECTE.2016.7879617","url":null,"abstract":"An adaptive algorithm for selection of Intrinsic Mode Functions (IMF) of Empirical Mode Decomposition (EMD) is a time demand in the field of signal processing. This paper presents a new model of an effective algorithm for the adaptive selection of IMFs for the EMD. Our proposed model suggests the decomposition of an input signal using EMD, and the resultant IMFs are classified into two categories the relevant noise free IMFs and the irrelevant noise dominant IMFs using a trained Support Vector Machine (SVM). The Pearson Correlation Coefficient (PCC) is used for the supervised training of SVM. Noise dominant IMFs are then de-noised using the Savitzky-Golay filter. The signal is reconstructed using both noise free and de-noised IMFs. Our proposed model makes the selection process of IMFs adaptive and it achieves high Signal to Noise Ratio (SNR) while the Percentage of RMS Difference (PRD) and Max Error values are low. Experimental result attained up to 41.79% SNR value, PRD and Max Error value reduced to 0.814% and 0.081%, respectively compared to other models.","PeriodicalId":6578,"journal":{"name":"2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)","volume":"14 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74005999","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}
Pub Date : 2016-12-01DOI: 10.1109/ICECTE.2016.7879600
M. Akter, A. Lambert, M. Pickering, J. M. Scarvell, Paul N. Smith, Fariha Tabassuma, Mahamud Tariq Rashid
Automatic image registration algorithms that rely on a gradient descent based approach may fail when the initial misalignment between objects is large. The registration task is even more difficult for multi-modal images because of the non-linear relationship between the pixel intensities in the images to be aligned. In this paper we will present a multi-modal image registration algorithm which successfully registers 3D CT to 2D fluoroscopy data for large initial displacements between the images. The approach uses the conditional means (CM) of the joint probability distribution of the images to establish a model linear relationship between the pixel intensities of the images and then applies log-polar transforms (LPT) in the frequency domain to estimate the in-plane scale and rotation changes between the images. Our experimental results show that the proposed approach can increase the range of initial displacements for which the algorithm is able successfully register images by a factor of 4 when compared to the best of the existing gradient-descent based approaches.
{"title":"Improved robustness of 3D CT to 2D fluoroscopy image registration using log polar transforms","authors":"M. Akter, A. Lambert, M. Pickering, J. M. Scarvell, Paul N. Smith, Fariha Tabassuma, Mahamud Tariq Rashid","doi":"10.1109/ICECTE.2016.7879600","DOIUrl":"https://doi.org/10.1109/ICECTE.2016.7879600","url":null,"abstract":"Automatic image registration algorithms that rely on a gradient descent based approach may fail when the initial misalignment between objects is large. The registration task is even more difficult for multi-modal images because of the non-linear relationship between the pixel intensities in the images to be aligned. In this paper we will present a multi-modal image registration algorithm which successfully registers 3D CT to 2D fluoroscopy data for large initial displacements between the images. The approach uses the conditional means (CM) of the joint probability distribution of the images to establish a model linear relationship between the pixel intensities of the images and then applies log-polar transforms (LPT) in the frequency domain to estimate the in-plane scale and rotation changes between the images. Our experimental results show that the proposed approach can increase the range of initial displacements for which the algorithm is able successfully register images by a factor of 4 when compared to the best of the existing gradient-descent based approaches.","PeriodicalId":6578,"journal":{"name":"2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)","volume":"123 4 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87376845","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}
Pub Date : 2016-12-01DOI: 10.1109/ICECTE.2016.7879592
Dilip Kumar Sarker, M. Sarkar, M. S. Anower
An opportunistic relaying strategy is introduced in this paper to enhance the performance of multicasting. The key feature of this work is to provide an additional diversity to the multicast users selecting best relay from a group of multiple relays. It is assumed that there is no direct path between the source and the destinations and communication occurs only through the relays. The best relay is selected employing selection combining technique and the performance of multicast channels is analyzed in terms of the multicast capacity and the outage probability. In order to clarify the insight of numerical results, all the expressions are derived in analytical form and the validity of derived expressions are justified via Monte-Carlo simulation.
{"title":"Enhancing multicast capacity using opportunistic relaying","authors":"Dilip Kumar Sarker, M. Sarkar, M. S. Anower","doi":"10.1109/ICECTE.2016.7879592","DOIUrl":"https://doi.org/10.1109/ICECTE.2016.7879592","url":null,"abstract":"An opportunistic relaying strategy is introduced in this paper to enhance the performance of multicasting. The key feature of this work is to provide an additional diversity to the multicast users selecting best relay from a group of multiple relays. It is assumed that there is no direct path between the source and the destinations and communication occurs only through the relays. The best relay is selected employing selection combining technique and the performance of multicast channels is analyzed in terms of the multicast capacity and the outage probability. In order to clarify the insight of numerical results, all the expressions are derived in analytical form and the validity of derived expressions are justified via Monte-Carlo simulation.","PeriodicalId":6578,"journal":{"name":"2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)","volume":"70 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85452129","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}
Pub Date : 2016-12-01DOI: 10.1109/ICECTE.2016.7879582
R. Toufiq, Md. Rabiul Isalm
The objective is to develop a dynamic decision selection method for face recognition system where minimum number of information about face are available to take correct decision. Statically we can develop such system where Bayesian method has been preferred in most case. It is better to fuse two or more classifier whose outputs are not highly correlated. In this work, the output of two classifiers systems are not so much correlated. We considered more than one decision for each classifier so that the correlations of the output are varied. It has been proved that the Bayesian optimal decision boundaries can be produced decision in fusion technique. It also has been proposed two methods to determine the Bayesian optimal decision are performed correctly in different database. We have proposed a different technique to calculate prior and posterior probability. Finally the fusion decision has been taken based on the probability values and it has been shown that the performance of Bayesian fusion techniques is better among the individual classifier technique. This fusion technique has been used in decision level and selected a class which is considered as correct output. Finally we have compared the performance among different classifier output and this soft-output classifier fusion method.
{"title":"Face recognition system using soft-output classifier fusion method","authors":"R. Toufiq, Md. Rabiul Isalm","doi":"10.1109/ICECTE.2016.7879582","DOIUrl":"https://doi.org/10.1109/ICECTE.2016.7879582","url":null,"abstract":"The objective is to develop a dynamic decision selection method for face recognition system where minimum number of information about face are available to take correct decision. Statically we can develop such system where Bayesian method has been preferred in most case. It is better to fuse two or more classifier whose outputs are not highly correlated. In this work, the output of two classifiers systems are not so much correlated. We considered more than one decision for each classifier so that the correlations of the output are varied. It has been proved that the Bayesian optimal decision boundaries can be produced decision in fusion technique. It also has been proposed two methods to determine the Bayesian optimal decision are performed correctly in different database. We have proposed a different technique to calculate prior and posterior probability. Finally the fusion decision has been taken based on the probability values and it has been shown that the performance of Bayesian fusion techniques is better among the individual classifier technique. This fusion technique has been used in decision level and selected a class which is considered as correct output. Finally we have compared the performance among different classifier output and this soft-output classifier fusion method.","PeriodicalId":6578,"journal":{"name":"2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)","volume":"80 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77070430","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}
Pub Date : 2016-12-01DOI: 10.1109/ICECTE.2016.7879570
A. B. M. Ashikur Rahman, Golam Mostaeen, Md. Hasanul Kabir
Signature is widely used as a means of personal verification which emphasizes the need for a signature verification system. Often the single signature feature may produce unacceptable error rates. Features used in this method are mainly local key-point feature that deals with the orientation around each key-point. Before extracting the features, preprocessing of a scanned image is necessary to isolate the region of interest part of a signature and to remove any spurious noise present. The system is initially trained using a database of signatures obtained from those individuals whose signatures are to be authenticated by the system. For extracting the feature, key-points of the image are detected. For each point, orientation around the point is calculated as the feature. By matching the features of sample signature and testing signature decision is taken. If a query signature is in the acceptance range then it is an authentic signature, otherwise it is a forged signature.
{"title":"A statistical approach for offline signature verification using local gradient features","authors":"A. B. M. Ashikur Rahman, Golam Mostaeen, Md. Hasanul Kabir","doi":"10.1109/ICECTE.2016.7879570","DOIUrl":"https://doi.org/10.1109/ICECTE.2016.7879570","url":null,"abstract":"Signature is widely used as a means of personal verification which emphasizes the need for a signature verification system. Often the single signature feature may produce unacceptable error rates. Features used in this method are mainly local key-point feature that deals with the orientation around each key-point. Before extracting the features, preprocessing of a scanned image is necessary to isolate the region of interest part of a signature and to remove any spurious noise present. The system is initially trained using a database of signatures obtained from those individuals whose signatures are to be authenticated by the system. For extracting the feature, key-points of the image are detected. For each point, orientation around the point is calculated as the feature. By matching the features of sample signature and testing signature decision is taken. If a query signature is in the acceptance range then it is an authentic signature, otherwise it is a forged signature.","PeriodicalId":6578,"journal":{"name":"2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)","volume":"102 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80624281","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}
Pub Date : 2016-12-01DOI: 10.1109/ICECTE.2016.7879581
P. Sarker, M. Rana, A. K. Sarkar
This paper investigates the modeling of graphene interband conductivity in near infared frequency range. First, the interband graphene conductivity is incorporated in surface boundary condition (SBC). Then, SBC is applied in finite-difference time domain (FDTD) method for modeling graphene sheet. Moreover, auxiliary differential equation (ADE) is used to characterize frequency dependent graphene conductivity in FDTD method. Advantages, accuracy, applicability and stability of the proposed method are analyzed by numerical examples. The method is validated by comparing the existing analytical results. This method can be easily implemented to model the graphene interband conductivity for optical device applications.
{"title":"Modeling of graphene conductivity using FDTD in the near infrared frequency","authors":"P. Sarker, M. Rana, A. K. Sarkar","doi":"10.1109/ICECTE.2016.7879581","DOIUrl":"https://doi.org/10.1109/ICECTE.2016.7879581","url":null,"abstract":"This paper investigates the modeling of graphene interband conductivity in near infared frequency range. First, the interband graphene conductivity is incorporated in surface boundary condition (SBC). Then, SBC is applied in finite-difference time domain (FDTD) method for modeling graphene sheet. Moreover, auxiliary differential equation (ADE) is used to characterize frequency dependent graphene conductivity in FDTD method. Advantages, accuracy, applicability and stability of the proposed method are analyzed by numerical examples. The method is validated by comparing the existing analytical results. This method can be easily implemented to model the graphene interband conductivity for optical device applications.","PeriodicalId":6578,"journal":{"name":"2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)","volume":"73 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88387480","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}
Pub Date : 2016-12-01DOI: 10.1109/ICECTE.2016.7879626
Dona Basak
Glass lasers are one type of solid state laser that uses glass as gain medium where active ions (Nd3+, Er3+ Ho3+, Tm3+ etc.) are doped. Materials for laser operation must possess sharp fluorescent lines, strong absorption bands, and reasonably high quantum efficiency for the fluorescent transition of interest. These characteristics are generally shown by solids (crystals or glass) which incorporate in small amount of elements in which optical transitions can occur between states of inner, incomplete electron shells. Thus the transition metals, the rare earth (lanthanide) series, and the actinide series are of interest in this connection. For this paper Nd:glass is of interest that shows inhomogeneous broadening. For inhomogeneous broadening central frequency is shifted due to local variation of electric field and thus gain reduces as gain is inversely to line width. But in case of homogeneous broadening each atom response in an identical fashion causes line broadening. However, this broadening is much less than inhomogeneous broadening and affect gain profile less severely. On the other hand, if the glass structure can be crystallize by external parameter like temperature, pressure etc. than local field variation will be compensated and we might reach to homogeneous broadening.
{"title":"Inhomogeneous line shape broadening of glass laser and improvement of the line shape by crystallization","authors":"Dona Basak","doi":"10.1109/ICECTE.2016.7879626","DOIUrl":"https://doi.org/10.1109/ICECTE.2016.7879626","url":null,"abstract":"Glass lasers are one type of solid state laser that uses glass as gain medium where active ions (Nd3+, Er3+ Ho3+, Tm3+ etc.) are doped. Materials for laser operation must possess sharp fluorescent lines, strong absorption bands, and reasonably high quantum efficiency for the fluorescent transition of interest. These characteristics are generally shown by solids (crystals or glass) which incorporate in small amount of elements in which optical transitions can occur between states of inner, incomplete electron shells. Thus the transition metals, the rare earth (lanthanide) series, and the actinide series are of interest in this connection. For this paper Nd:glass is of interest that shows inhomogeneous broadening. For inhomogeneous broadening central frequency is shifted due to local variation of electric field and thus gain reduces as gain is inversely to line width. But in case of homogeneous broadening each atom response in an identical fashion causes line broadening. However, this broadening is much less than inhomogeneous broadening and affect gain profile less severely. On the other hand, if the glass structure can be crystallize by external parameter like temperature, pressure etc. than local field variation will be compensated and we might reach to homogeneous broadening.","PeriodicalId":6578,"journal":{"name":"2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)","volume":"74 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75408422","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}
Pub Date : 2016-12-01DOI: 10.1109/ICECTE.2016.7879566
M. A. Sarker, M. S. Hossain, M. S. Masud
Antenna array is one of the most useable technologies in present day communication system. There are many applications like biomedical imaging, military communication and radar system where low side lobe level is an essential feature of array processor. There is a trade-off between side lobe level (SLL) and the directivity of the array. Designing an antenna array system with optimum trade-off between SLL and directivity has become a crucial problem. To suppress high SLL of output beam pattern and signal direction mismatches, some notable optimization techniques have been developed. Amplitude weighting of array elements is a well known approach for SLL control. In real-time implementation of antenna array system, the main beam may not be in the assumed direction and the actual signal is treated as an interference signal which is undesirable. Hence the robustness of an array processor against uncertainties is an important issue. In this paper, a method is proposed to keep the SLL at the desired value as well as makes the array system more applicable for real time implementation considering array uncertainties and imperfections.
{"title":"Robust beamforming synthesis technique for low side lobe level using taylor excited antenna array","authors":"M. A. Sarker, M. S. Hossain, M. S. Masud","doi":"10.1109/ICECTE.2016.7879566","DOIUrl":"https://doi.org/10.1109/ICECTE.2016.7879566","url":null,"abstract":"Antenna array is one of the most useable technologies in present day communication system. There are many applications like biomedical imaging, military communication and radar system where low side lobe level is an essential feature of array processor. There is a trade-off between side lobe level (SLL) and the directivity of the array. Designing an antenna array system with optimum trade-off between SLL and directivity has become a crucial problem. To suppress high SLL of output beam pattern and signal direction mismatches, some notable optimization techniques have been developed. Amplitude weighting of array elements is a well known approach for SLL control. In real-time implementation of antenna array system, the main beam may not be in the assumed direction and the actual signal is treated as an interference signal which is undesirable. Hence the robustness of an array processor against uncertainties is an important issue. In this paper, a method is proposed to keep the SLL at the desired value as well as makes the array system more applicable for real time implementation considering array uncertainties and imperfections.","PeriodicalId":6578,"journal":{"name":"2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)","volume":"9 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84279016","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}
Pub Date : 2016-12-01DOI: 10.1109/ICECTE.2016.7879612
A. Mohammad
This paper proposes a double sourced converter which performs both rectifier (ac to dc) and chopper (dc to dc) actions in a single circuit instead of two separate converters. Switching signals for two different modes are simulated by designing a controller to get the desired output from the proposed converter. In both modes of operation the output is dc. All necessary simulations are performed in PSIM.
{"title":"Designing a double sourced converter","authors":"A. Mohammad","doi":"10.1109/ICECTE.2016.7879612","DOIUrl":"https://doi.org/10.1109/ICECTE.2016.7879612","url":null,"abstract":"This paper proposes a double sourced converter which performs both rectifier (ac to dc) and chopper (dc to dc) actions in a single circuit instead of two separate converters. Switching signals for two different modes are simulated by designing a controller to get the desired output from the proposed converter. In both modes of operation the output is dc. All necessary simulations are performed in PSIM.","PeriodicalId":6578,"journal":{"name":"2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)","volume":"238 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80411499","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}
Pub Date : 2016-12-01DOI: 10.1109/ICECTE.2016.7879625
J. Das, Rifat Fatema, M. Anower
This paper describes a process to make the residential buildings more energy efficient. Three low voltage direct current (DC) distribution systems of different voltage levels are compared with the existing alternating current (AC) system in Bangladesh. Losses in the cable, internal losses of the devices, energy consumption cost, efficiency of the converters and initial cost for new wiring are the factors which have been assessed to obtain the best system. Through the analysis it is found that 48V DC system with optimized cable area is the most economical system among the others as it saves 1,36,859.2 BDT within a life time of 20 years. Besides, a hybrid appliance is prototyped consisting of air-cooler, refrigerator and electric stove altogether for higher efficiency. The wasted heat energies from the cooling devices are stored in a thermal storage by thermoelectric modules and used later for heating purposes for the better overall efficiency.
{"title":"Feasibility study of low voltage DC distribution system for residential buildings in Bangladesh and hybrid home appliance design for tropical climate","authors":"J. Das, Rifat Fatema, M. Anower","doi":"10.1109/ICECTE.2016.7879625","DOIUrl":"https://doi.org/10.1109/ICECTE.2016.7879625","url":null,"abstract":"This paper describes a process to make the residential buildings more energy efficient. Three low voltage direct current (DC) distribution systems of different voltage levels are compared with the existing alternating current (AC) system in Bangladesh. Losses in the cable, internal losses of the devices, energy consumption cost, efficiency of the converters and initial cost for new wiring are the factors which have been assessed to obtain the best system. Through the analysis it is found that 48V DC system with optimized cable area is the most economical system among the others as it saves 1,36,859.2 BDT within a life time of 20 years. Besides, a hybrid appliance is prototyped consisting of air-cooler, refrigerator and electric stove altogether for higher efficiency. The wasted heat energies from the cooling devices are stored in a thermal storage by thermoelectric modules and used later for heating purposes for the better overall efficiency.","PeriodicalId":6578,"journal":{"name":"2016 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE)","volume":"89 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80303056","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：