Exploiting Dynamic Thermal Energy Harvesting for Reusing in Smartphone with Mobile Applications
Year: 2018
Type: article
Abstract: Recently, mobile applications have gradually become performance- and resource- intensive, which results in a massive battery power drain and high surface temperature, and further degrades the user experience. Thus, high power consumption and surface over-heating have been considered as a severe challenge to smartphone design. In this paper, we propose DTEHR, a mobile Dynamic Thermal Energy Harvesting Reusing framework to tackle this challenge. The approach is sustainable in that it generates energy using dynamic Thermoelectric Generators (TEGs). The generated energy not only powers Thermoelectric Coolers (TECs) for cooling down hot-spots, but also recharges micro-supercapacitors (MSCs) for extended smartphone usage. To analyze thermal characteristics and evaluate DTEHR across real-world applications, we build MPPTAT (Multi-comPonent Power and Thermal Analysis Tool), a power and thermal analyzing tool for Android. The result shows that DTEHR reduces the temperature differences between hot areas and cold areas up to 15.4°C (internal) and 7°C (surface). With TEC-based hot-spots cooling, DTEHR reduces the temperature of the surface and internal hot-spots by an average of 8° and 12.8mW respectively. With dynamic TEGs, DTEHR generates 2.7-15mW power, more than hundreds of times of power that TECs need to cool down hot-spots. Thus, extra-generated power can be stored into MSCs to prolong battery life.
Source: ACM SIGPLAN Notices
Authors: Yuting Dai, Tao Li, Benyong Liu, Mingcong Song, Huixiang Chen
Institutions: Guizhou University, University of Florida
Language: English
Topic: Green IT and Sustainability
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Awards: SHF: Small: Leveraging the Interplay between Process Variation and NBTI in Nanoscale Reliable NoC Architecture Design, SHF: Small: Optimizing Consolidation Efficiency of Emerging Virtualized Cloud Applications on Contemporary Server Architecture, CSR: Small: Enabling Renewable Energy Powered Sustainable High Performance Computer Architectures and Systems, CSR: Small: Leveraging Distributed Generation and Adaptive Energy Storage Management for Efficient and Scale-Out Renewable Powered Data Center Design, SHF: Small: Collaborative Research: Exploring Energy-Efficient GPGPUs Through Emerging Technology Integration, G6671297155, Collaborative Research: Cross-Layer Exploration of Non-Volatile Solid-State Memories to Achieve Effective I/O Stack for High-Performance Computing Systems, CSR---SMA: Characterizing, Modeling and Mitigating Soft Error Vulnerability in Multithreaded and Multi-core Execution Environments, CPA-CSA: Exploring Synergetic and Process Technology Aware Approaches to Effectively Enhance Processor Microarchitecture Soft Error Reliability, CSR-PSCE, SM: Automatic Multithreaded and Transactional Memory Workload Synthesis for Efficient Multi-core Design Space Evaluation, CAREER: New Foundations for Many-core Architecture Analysis, Modeling and Management
OpenAlex ID: W3009960099